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10 years agoENGR00298127-2 ARM: dtsi: imx6qdl sabreauto: Disable mipi csi
Liu Ying [Fri, 14 Mar 2014 09:34:11 +0000 (17:34 +0800)]
ENGR00298127-2 ARM: dtsi: imx6qdl sabreauto: Disable mipi csi

As the sabreauto CPU board schematics mentions, the MIPI connector
isn't mechanically compatible with Freescale MIPI display and camera
board, then we have no way to support MIPI features currently on
this platform.  So, let's disable MIPI CSI.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 453d409281228429270b9f294728e5cad1c63ee0)

10 years agoENGR00298127-1 ARM: dtsi: imx6qdl sabreauto: Remove v4l2_cap_1 node
Liu Ying [Fri, 14 Mar 2014 09:26:28 +0000 (17:26 +0800)]
ENGR00298127-1 ARM: dtsi: imx6qdl sabreauto: Remove v4l2_cap_1 node

As the sabreauto CPU board schematics mentions, the MIPI connector
isn't mechanically compatible with Freescale MIPI display and camera
board, then we have only the parallel CSI video input that is supported
by the v4l2_cap_0 node.  So, let's remove the orphan one - v4l2_cap_1.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 1396bc28eac7e968e278a9ce36cdc7a44b0417bd)

10 years agoENGR00302869-2 ARM: imx: imx6qdl: enable cfg_clk to make MIPI CSI2 work
Robby Cai [Thu, 13 Mar 2014 12:02:34 +0000 (20:02 +0800)]
ENGR00302869-2 ARM: imx: imx6qdl: enable cfg_clk to make MIPI CSI2 work

The following error was reported.

-----------------------------------------------------------
root@imx6qdlsolo:~# /unit_tests/mxc_v4l2_capture.out -d /dev/video1 1.yuv
in_width = 176, in_height = 144
out_width = 176, out_height = 144
top = 0, left = 0
mipi csi2 can not receive sensor clk!
sensor chip is ov5640_mipi_camera
sensor supported frame size:
 640x480
 320x240
 720x480
 720x576
 1280x720
 1920x1080
 2592x1944
 176x144
 1024x768
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
sensor frame format: UYVY
mipi csi2 can not receive sensor clk!
mxc_v4l2_s_param: vidioc_int_s_parm returned an error -1
VIDIOC_S_PARM failed
get format failed

-----------------------------------------------------------

Root cause analysis:
It only happens when HDMI is not used/enabled. There is a clock named
video_27m which are needed by HDMI (as isfrclk's parent) and MIPI-CSI2 (as
cfg_clk's parent). MIPI-CSI2 driver is lack of enabling this clock before
start to work and only happen to work when HDMI driver enables this clock.

Signed-off-by: Robby Cai <R63905@freescale.com>
(cherry picked from commit a6bbc7d56f261ab84e04071487264c6a519df758)

10 years agoENGR00302869-1 ARM: dts: imx6qdl: add cfg_clk for MIPI CSI2
Robby Cai [Tue, 11 Mar 2014 10:41:45 +0000 (18:41 +0800)]
ENGR00302869-1 ARM: dts: imx6qdl: add cfg_clk for MIPI CSI2

MIPI CSI2 depends on this clock to work.
This patch also updates the binding document.

Signed-off-by: Robby Cai <R63905@freescale.com>
(cherry picked from commit 67e7963f6f7ddb6c001bb34c6af71f2330fd0e3f)

10 years agoENGR00302531 Noise come out after change the HDMI resolution when video pause
Shengjiu Wang [Fri, 7 Mar 2014 09:32:41 +0000 (17:32 +0800)]
ENGR00302531 Noise come out after change the HDMI resolution when video pause

After change the resolution, the blank state will be changed, the audio will
be triggered to start. which didn't care about the audio is running or not
before changing the resolution.
Add hdmi_abort_state for this special case.

Signed-off-by: Shengjiu Wang <b02247@freescale.com>
10 years agoENGR00300188-2 ASoC: imx-hdmi-dma: Clear offset in the trigger init
Nicolin Chen [Thu, 6 Mar 2014 11:14:29 +0000 (19:14 +0800)]
ENGR00300188-2 ASoC: imx-hdmi-dma: Clear offset in the trigger init

The offset reflects the current position of DMA access in the ALSA ring buffer.
So we should clear it before re-start DMA engine becasue the DMA access should
re-start its job from the 0 position. If we don't do this, the driver might get
a wrong idea about current position of DMA access. Thus fix it.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 8f265543ffda0a19e3f469967a7d61d8b344f080)

10 years agoENGR00300188-1 ASoC: imx-hdmi-dma: Double the buffer and period sizes
Nicolin Chen [Fri, 7 Mar 2014 11:59:04 +0000 (19:59 +0800)]
ENGR00300188-1 ASoC: imx-hdmi-dma: Double the buffer and period sizes

We found HDMI Audio has a performance issue when playback 8 channels 192KHz
files, CPU might lag its interrupt responsing while SDMA continues updating
HDMI internal AHB DMA's address and restarting AHB DMA, which resulted the
noise when AHB DMA access overlaps with the data copy procedures in this
driver.

Thus we here double the buffer size and period size of HDMI Audio to chop
the CPU interrupt to its half in the same span of time so that we can keep
the data copy procedures safe and provent it from overlapping access with
AHB DMA.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 04af1a351e016f52276ae002fd9f64b6b2962168)

10 years agoENGR00299939-3 USB: imx6x: Add dummy LDO2p5 regulator for VBUS wakeup
Ranjani Vaidyanathan [Tue, 4 Mar 2014 21:38:18 +0000 (15:38 -0600)]
ENGR00299939-3 USB: imx6x: Add dummy LDO2p5 regulator for VBUS wakeup

LDO2p5 cannot be disabled in low power idle mode when the USB driver
enables VBUS wakeup. To identify when LDO2p5 can be disabled add a dummy
regulator that the USB driver will enable when VBUS wakeup is required.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>
10 years agoENGR00299939-2 ARM: imx6sl: Add dummy LDO2p5 regulator to support VBUS wakeup
Ranjani Vaidyanathan [Tue, 4 Mar 2014 21:31:59 +0000 (15:31 -0600)]
ENGR00299939-2 ARM: imx6sl: Add dummy LDO2p5 regulator to support VBUS wakeup

LDO2p5 cannot be disabled in low power idle mode when the USB driver
enables VBUS wakeup. To identify when LDO2p5 can be disabled add a dummy
regulator that the USB driver will enable when VBUS wakeup is required.

This patch ensures that the low power idle code checks the status of the
dummy ldo2p5 regulator before disabling LDO2p5.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>
10 years agoENGR00299939-1 ARM: dts: imx6sl:Add dummy LDO2p5 regulator to support vbus wakeup
Ranjani Vaidyanathan [Tue, 4 Mar 2014 21:06:30 +0000 (15:06 -0600)]
ENGR00299939-1 ARM: dts: imx6sl:Add dummy LDO2p5 regulator to support vbus wakeup

LDO2p5 cannot be disabled in low power idle mode when the USB driver
enables VBUS wakeup. To identify when LDO2p5 can be disabled add a dummy
regulator that the USB driver will enable when VBUS wakeup is required.
This patch adds the dummy regulator to the dts files.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>
10 years agoENGR00301095 gpu:gpu hang when dma memory is used up
Loren Huang [Thu, 27 Feb 2014 07:44:49 +0000 (15:44 +0800)]
ENGR00301095 gpu:gpu hang when dma memory is used up

When dma zone memory used up, gckOS_AllocateNonPagedMemory() will try to
free non paged memory cache and allocate again. Such operation will cause
 twice memory mutex request and cause gpu driver hang.

The solution is free the memory mutex at first before trying to free non
paged memory cache.

Date: Feb 27, 2014
Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
(cherry picked from commit 79ed8edd23f990f6c1429154c2ee773c83bfd72e)

10 years agoENGR00292341 imx6sl hwrng
Dan Douglass [Thu, 20 Feb 2014 17:25:56 +0000 (11:25 -0600)]
ENGR00292341 imx6sl hwrng

Add hwrng support for i.MX6SL.

1. Add RNG driver. This driver originated as fsl-rngc.c. It
   has been modified to support device tree. The name has been
   changed since it supports both b and c variants of RNG.
2. Added clock and compatible info to the device tree data.
3. Added the entry in the options in the Kconfig for hwrng.

Signed-off-by: Dan Douglass <dan.douglass@freescale.com>
10 years agoENGR00290659 IPUv3: Fix a flashing vert. line when downsizing 1080i to 300x400.
Oliver Brown [Wed, 19 Feb 2014 23:32:48 +0000 (17:32 -0600)]
ENGR00290659 IPUv3: Fix a flashing vert. line when downsizing 1080i to 300x400.

When split mode deinterlacing is the ipu_calc_stripes_sizes() was failing due
to an unnecessary test. Added logic to use the maximal_stripe_width only if
the flag parameter has the bit 0 clear for not equal stripe sizes.

Signed-off-by: Oliver Brown <oliver.brown@freescale.com>
10 years agoENGR00299600 hdmi:yocto gui can not show to some TV on ard board
Sandor Yu [Wed, 19 Feb 2014 08:40:49 +0000 (16:40 +0800)]
ENGR00299600 hdmi:yocto gui can not show to some TV on ard board

For i.MX6 ARD board, the board not support read EDID from TV,
so HDMI driver will create a default support mode list when system
bootup.
Because yocto xserver can not get video mode information from
framebuffer now, and xserver will set default video mode XGA
to framebuffer, but XGA mode is not support by hdmi.

Remove XGA and SXGA from default support list.
HDMI driver will find a nearest match video mode in support list.
It is VGA mode. HDMI support VGA mode well.
Issue is fixed.

Signed-off-by: Sandor Yu <R01008@freescale.com>
10 years agoENGR00299756-5 ASoC: fsl_esai: Add default init for ESAI after probe()
Nicolin Chen [Tue, 18 Feb 2014 13:08:19 +0000 (21:08 +0800)]
ENGR00299756-5 ASoC: fsl_esai: Add default init for ESAI after probe()

This patch extracts the register init code for ESAI along with the default slot
number which is more common to I2S and LEFT_J mode.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit ad9c7ab4ff75488c0cc44bcc5d87af2d5d1139cf)

10 years agoENGR00299756-4 ASoC: imx-cs42888: Use ESAI LEFT_J master mode
Nicolin Chen [Tue, 18 Feb 2014 13:06:05 +0000 (21:06 +0800)]
ENGR00299756-4 ASoC: imx-cs42888: Use ESAI LEFT_J master mode

This patch sets ESAI as LEFT_J format master so as to let ESAI provide bit
clock and frame clock for stability.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 38df16f71c95e2aa8e0b4c1ddd2ed7ec2c4fef4b)

10 years agoENGR00299756-3 ARM: imx6q: Add the clock route from external OSC to ESAI clock
Nicolin Chen [Tue, 18 Feb 2014 12:54:25 +0000 (20:54 +0800)]
ENGR00299756-3 ARM: imx6q: Add the clock route from external OSC to ESAI clock

This patch mainly adds the clock route from external 24.576MHz OSC to internal
ESAI clock via analog clock2 PADs on the SoC and pll4 so that ESAI can get an
entirely synchronous clock source against CS42888.

[ 1, We found if using pll4 to generate a 24.576MHz from inernal 24.0MHz OSC,
  we would get noise during the audio playback via ESAI->CS42888 even though
  this generated clock's rate is equal to the external one statistically. It
  might be resulted from the tiny difference between two clock source, which
  might be crucial to the sensitive CODEC we use -- CS42888. So we here apply
  the old 3.0.35 way to feed ESAI the same clock source as CS42888.

  2, Ideally, we should use bypass mode for pll4 since we only need to get
  the raw rate (24.576MHz) while currently bypass mode in clk-pllv3.c isn't
  entirely supported: The clock rate would be fixed to 24.0MHz if setting to
  bypass, which would cause child clock get an incorrect rate and the driver
  who uses the child clock fail to derive a needed clock rate, and it might
  be dangerous to involve the clk-pllv3.c driver to this fix. Thus we here
  apply 3.0.35 way provisionally. ]

Expected result:

anaclk2                 0           1            24576000
 lvds2_in               0           1            24576000
  pll4_sel              0           1            24576000
   pll4_audio           0           1            786432000
    pll4_post_div       0           1            786432000
     pll4_audio_div     0           1            786432000
      esai_sel          0           1            786432000
       esai_pred        0           1            98304000
        esai_podf       0           1            24576000
         esai           0           1            24576000

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 49584be724d4d9c7a753d2b981b3932d8d871eb4)

10 years agoENGR00299756-2 ARM: imx6q: Add missing lvds2 clock to the clock tree
Nicolin Chen [Tue, 18 Feb 2014 12:27:06 +0000 (20:27 +0800)]
ENGR00299756-2 ARM: imx6q: Add missing lvds2 clock to the clock tree

We actually have lvds2 (analog clock2), an I/O clock like lvds1, in the SoC.
And this lvds2, along with lvds1, can be used to provide external clock source
to the internal pll, such as pll4_audio and pll5_video.

So This patch mainly adds the lvds2 to the clock tree and fix its relationship
with pll4 accordingly.

[ To reduce the risk from code changing. This patch only takes care of pll4
  related part. We might later need to add the relationship with pll5 too. ]

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 5b74b6b26e4b44d265090fc6ad15b15ccb7b5cff)

10 years agoENGR00299756-1 ASoC: fsl_esai: Add missing clock enabler to ASoC interfaces
Nicolin Chen [Tue, 18 Feb 2014 10:40:33 +0000 (18:40 +0800)]
ENGR00299756-1 ASoC: fsl_esai: Add missing clock enabler to ASoC interfaces

All of these functions might be called before we enable the core clock in the
startup() by set_bias_level() or late_probe() in machine driver for example.
To make it safe, we here add pair of clock en/disabling to each function.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit e6df36df2bc8062f3d1c0a19d18acc843a77619d)

10 years agoENGR00298052-7 ARM: imx6q: remove function imx6q_lvds_cabc_init()
Liu Ying [Tue, 18 Feb 2014 04:49:32 +0000 (12:49 +0800)]
ENGR00298052-7 ARM: imx6q: remove function imx6q_lvds_cabc_init()

This patch removes the function imx6q_lvds_cabc_init() from the
machine layer since we have a dedicated Hannstar CABC driver to
control the CABC feature.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit b0d2154a9c63b2beba774e46b90ec3d55609c672)

10 years agoENGR00298052-6 ARM: dts: imx6qdl-sabresd: remove lvds_cabc_ctrl
Liu Ying [Tue, 18 Feb 2014 04:46:30 +0000 (12:46 +0800)]
ENGR00298052-6 ARM: dts: imx6qdl-sabresd: remove lvds_cabc_ctrl

This patch removes the device tree node lvds_cabc_ctrl, since
it is replaced by hannstar_cabc_lvds0 and hannstar_cabc_lvds1.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 6a3d2c5e858afeef695bcd9fe2ecc0933d3d29da)

10 years agoENGR00298052-5 ARM: dts: imx6qdl-sabresd: support Hannstar CABC
Liu Ying [Tue, 18 Feb 2014 04:44:35 +0000 (12:44 +0800)]
ENGR00298052-5 ARM: dts: imx6qdl-sabresd: support Hannstar CABC

This patch adds a device tree node for the Hannstar CABC function.
We currently disable the CABC feature since it makes a panel's
backlight unstable when display content varies considerably from
time to time.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 0c98df5d1b04ea043e5279628aebf406c250f5e3)

10 years agoENGR00298052-4 ARM: dts: imx6qdl-sabreauto: support Hannstar CABC
Liu Ying [Tue, 18 Feb 2014 02:59:09 +0000 (10:59 +0800)]
ENGR00298052-4 ARM: dts: imx6qdl-sabreauto: support Hannstar CABC

This patch adds a device tree node for the Hannstar CABC function.
The LVDS0 and LVDS1 interfaces of the i.MX6dql Sabreauto platform
shares a control pin for the CABC function, but LVDS1's control
wire is invalid for the unpopulated resistor R265 on the main board.
We currently disable the CABC feature since it makes a panel's
backlight unstable when display content varies considerably from
time to time.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 6af4f4ac7c361a60fe05400497f644db3adcfc94)

10 years agoENGR00298052-3 ARM: imx_v7_defconfig: enable Hannstar CABC driver
Liu Ying [Tue, 18 Feb 2014 02:53:36 +0000 (10:53 +0800)]
ENGR00298052-3 ARM: imx_v7_defconfig: enable Hannstar CABC driver

This patch enables the Hannstar CABC driver in imx_v7_defconfig.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 9eeaeb6a259af6864a6db563100a300ba67ed83e)

10 years agoENGR00298052-2 Documentation: video: add Hannstar CABC dt bindings
Liu Ying [Tue, 18 Feb 2014 05:19:12 +0000 (13:19 +0800)]
ENGR00298052-2 Documentation: video: add Hannstar CABC dt bindings

This patch documents the Hannstar CABC driver's device tree bindings.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 0a6b9cf8548ffe03b8df494d08bece54ef3e528e)

10 years agoENGR00298052-1 video: mxc: add Hannstar CABC driver
Liu Ying [Tue, 18 Feb 2014 02:17:59 +0000 (10:17 +0800)]
ENGR00298052-1 video: mxc: add Hannstar CABC driver

This patch adds Hannstar CABC driver support.  The CABC
function turns the backlight density of a display panel
automatically according to the content shown on the panel.
It is controlled(enabled/disabled) by a GPIO.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 2dddbc55bd8ae9461067e1a9d047b2994510e6d8)

10 years agoENGR00297285-2 [MX6x] Support IRAM page table when DDR is in self-refresh.
Ranjani Vaidyanathan [Thu, 13 Feb 2014 22:51:11 +0000 (16:51 -0600)]
ENGR00297285-2 [MX6x] Support IRAM page table when DDR is in self-refresh.

The bottom 16KB of the IRAM is reserved for the IRAM page table.
Reduce the available IRAM size for the other drivers by 16KB.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>
10 years agoENGR00297285-1 [MX6x] Support IRAM page table when DDR is in self-refresh.
Ranjani Vaidyanathan [Thu, 13 Feb 2014 22:50:20 +0000 (16:50 -0600)]
ENGR00297285-1 [MX6x] Support IRAM page table when DDR is in self-refresh.

Whenever DDR is explicitly put into self-refresh, we need to ensure
that no access are made to the DDR. All the bus masters excpet ARM
are shutdown gracefully.
The ARM core can continue to access the DDR due to:
1. Speculative accesses
   This can be prevented by flushing the Branch Target Address Cache
2. Aggressive Prefetching
   This can be minimized by adding nops.
Apart from this the TLB architecture in ARM does not guarantee that
an entry remains in the TLB unless its explicitly locked. Even if
free slots are available an entry maybe evicted. So flushing the TLB
does not guarantee a page table walk will not happen.

The solution is to put a minimized page table in IRAM that can be used when
DDR is in self-refresh. The IRAM page tables should have entries for IRAM,
AIPS1 and AIPS2 as these entries will be needed by the code that puts DDR
into self-refresh. It should not contain any entries that point to the DDR.

This patch set accomplishes the following:
1. Set the IRAM to be mapped as 1M sections in the high mem region.
   This makes it possible to create entries for the IRAM code in the IRAM page table.
We need to ensure that both the DDR and IRAM page table have mapping for the IRAM code.
2. Ensure the IRAM, AIPS1, AIPS2 have entries in the IRAM page table.
3. Save TTBR1
4. Set TTBR1 to point to the page tables stored in IRAM. Switch to using
TTBR1 before DDR is put into self-refresh. Ensure the following settings:
    a. TTBCR.N = 1
     This means the 0-2G virtual address space is translated using TTBR0
     and 2G-4G is translated using TTBR1.
    b. Set TTBCR.PD0 = 1
      With this setting page table walks using TTBR0 are disabled.
4. After the DDR has exited self-refresh, reset TTBCR to 0 (TTBR0 will
be used for translations now).
5. Restore TTBR1

Even though TTBR1 is only used to decode the top 2G of virtual address
space, ARM requires that we allocate the entire 16KB for the page table.
To minimize IRAM/OCRAM required, we put the code in the bottom 8K and
page table entries in the top 8K.
This requires the low power code be optimized to occupy as little space
as possible.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>
10 years agoENGR00298392 pcie: imx pcie ep rc msi demo
Richard Zhu [Mon, 10 Feb 2014 06:56:46 +0000 (14:56 +0800)]
ENGR00298392 pcie: imx pcie ep rc msi demo

- add one imx pcie ep simple skeleton driver to demo
the msi trigger capability in imx6 pcie rc/ep validation
system
- in order to avoid the modification of common codes,
force the msi address to be 0x01ff8000

Test howto:
- Enable CONFIG_PCI_MSI=y, when rebuild the rc/ep images

- EP side(console command and kernel message):
root@sabresd_6dq:/ # memtool 0x1ff8000=0
Writing 32-bit value 0x0 to address 0x01FF8000
root@sabresd_6dq:/ #

- RC side(console command and kernel message):
root@sabresd_6dq:/ # cat /proc/interrupts | grep MSI
384:          1          0          0          0   PCI-MSI

- EP side(console command and kernel message):
root@sabresd_6dq:/ # memtool 0x1ff8000=0
Writing 32-bit value 0x0 to address 0x01FF8000

- RC side(console command and kernel message):
root@sabresd_6dq:/ # cat /proc/interrupts | grep MSI
384:          2          0          0          0   PCI-MSI

Signed-off-by: Richard Zhu <r65037@freescale.com>
10 years agoENGR00298389 pcie: let rc can access mem of ep
Richard Zhu [Mon, 10 Feb 2014 04:34:33 +0000 (12:34 +0800)]
ENGR00298389 pcie: let rc can access mem of ep

- setup one new outbound memory region at rc side, used
to let imx6 pcie rc can access the memory of imx6 pcie ep
in imx6 pcie rc ep validation system.
- set the default address of the ddr memory to be 0x4000_0000

NOTE:
- default address 0x4000_0000 of ep side would be
accessed in this demo.
Test howto:
step1:
EP side:
1.1:
echo 0x40000000 > /sys/devices/soc0/soc.1/1ffc000.pcie/ep_bar0_addr

1.2:
memtool -32 0x40000000 4
E
Reading 0x4 count starting at address 0x40000000

0x40000000:  6FE9E9F6 7583FBB9 39EAEFEA FBDCFD78

step2:
RC side:
memtool -32 0x01000000=58D454DA
memtool -32 0x01000004=7332095B

step3:
EP side:
memtool -32 0x40000000 4
E
Reading 0x4 count starting at address 0x40000000

0x40000000:  58D454DA 7332095B 39EAEFEA FBDCFD78

Signed-off-by: Richard Zhu <r65037@freescale.com>
10 years agoENGR00296547-2 ARM: dts: imx6qdl-sabreauto: add a new pinctrl for ECSPI1
Huang Shijie [Sun, 26 Jan 2014 02:58:14 +0000 (10:58 +0800)]
ENGR00296547-2 ARM: dts: imx6qdl-sabreauto: add a new pinctrl for ECSPI1

The ECSPI1 needs the GPIO3_19 to select/de-select the SPI NOR chip.

This patch adds a new pinctrl for this GPIO, and select this pinctrl
when we enable the ECSPI1.

Signed-off-by: Huang Shijie <b32955@freescale.com>
10 years agoENGR00296547-1 ARM: dts: imx6qdl-sabreauto-ecspi: use the gpio5_4 to enable the EIM_D18
Huang Shijie [Fri, 24 Jan 2014 10:26:54 +0000 (18:26 +0800)]
ENGR00296547-1 ARM: dts: imx6qdl-sabreauto-ecspi: use the gpio5_4 to enable the EIM_D18

The ECSPI needs the pin EIM_D18 which is controlled by the steering.
So we have to configurate the EIM_A24 to GPIO, and select the GPIO to LOW
status.

Signed-off-by: Huang Shijie <b32955@freescale.com>
10 years agoENGR00296519 USB: EHCI: wait more than 3ms until the device enters full-speed idle
Peter Chen [Fri, 24 Jan 2014 06:59:30 +0000 (14:59 +0800)]
ENGR00296519 USB: EHCI: wait more than 3ms until the device enters full-speed idle

If the high-speed device does not enter full-speed idle after
wakeup on disconnect logic has effected, there will be an
unexpected disconnect wakeup interrupt due to the bus is still SE0.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu
Yuanyuan Zhong [Wed, 30 Oct 2013 16:31:49 +0000 (17:31 +0100)]
ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu

The CPU_DYING notifier is called by cpu stopper task which
does not own the context held in the VFP hardware. Calling
vfp_force_reload() has no effect.
Replace it with clearing vfp_current_hw_state.

Signed-off-by: Yuanyuan Zhong <zyy@motorola.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
(cherry picked from commit 384b38b66947b06999b3e39a596d4f2fb94f77e4)

10 years agoENGR00296510 ARM: dts: imx6qdl-sabreauto: use the gpio5_4 to enable the EIM_D18
Huang Shijie [Fri, 24 Jan 2014 07:49:26 +0000 (15:49 +0800)]
ENGR00296510 ARM: dts: imx6qdl-sabreauto: use the gpio5_4 to enable the EIM_D18

The WEIN NOR needs the pin EIM_D18 which is controlled by the steering.
So we have to configurate the EIM_A24 to GPIO, and select the GPIO to LOW
status.

Signed-off-by: Huang Shijie <b32955@freescale.com>
10 years agoENGR00284938 sata: cr-rst workaround sata phy link issues
Richard Zhu [Fri, 10 Jan 2014 07:54:26 +0000 (15:54 +0800)]
ENGR00284938 sata: cr-rst workaround sata phy link issues

- add sata phy cr(offset:0x7f3f) reset in sata resume to
workaround imx6q sata kinds of suspend resume link
issues.
- add sata phy cr reset during imx6q sata initialization,
to initialize the sata phy to be an initialized state.
- add about 100us delay between mpll_clk enable and cr-rst,
make sure that the mpll_clk is stable.
- add about 100us delay between cr-rst and waiting for rx_pll
stable too, make sure that the cr-rst is finished.
- change the tx level setting from 1.025v to be the default
value 1.104v
- make sure the sata phy internal pll ref clk enable is
cleared before it is set, otherwise, the sata phy link
maybe failed when some devices are used.

Signed-off-by: Richard Zhu <r65037@freescale.com>
10 years agoENGR00296212 ARM: imx_v7_defconfig: Select CONFIG_HIGHMEM
Anson Huang [Thu, 23 Jan 2014 02:36:51 +0000 (10:36 +0800)]
ENGR00296212 ARM: imx_v7_defconfig: Select CONFIG_HIGHMEM

Select HIGHMEM config to avoid the vmalloc region overlap on
boards that have big RAM.

Previous imx_v7_defconfig change(CONFIG_CRYPTO_TEST) did NOT follow
the savedefconfig rule, fix it as well.

Signed-off-by: Anson Huang <b20788@freescale.com>
10 years agoENGR00296050 mxsfb: fb failed to work after suspend in console mode
Sandor Yu [Wed, 22 Jan 2014 07:09:37 +0000 (15:09 +0800)]
ENGR00296050 mxsfb: fb failed to work after suspend in console mode

When device boot into console, frame buffer failed to work after
suspend/resume.
That is caused by LCDIF IP lost all registers configuration
in suspend mode, and console didn't reconfiguration fb after resume.
Same issue didn't found with Yocto UI.
Reinitialize frame buffer driver after resume to fix the issue.

Signed-off-by: Sandor Yu <R01008@freescale.com>
10 years agoENGR00295201 ipuv3: vdic: kernel dump when run deinterlace stress test
Sandor Yu [Wed, 15 Jan 2014 08:50:04 +0000 (16:50 +0800)]
ENGR00295201 ipuv3: vdic: kernel dump when run deinterlace stress test

Kernel will dump when run deinterlace stress test.
It is caused by vditmpbuf being reallocated by another thread
when one thread accesses it.
Issue is fixed by putting these code in mutex.

Kernel dump log:
[Playing  ][Vol=01][00:00:10/00:00:30][fps:32]Unable to handle kernel
paging request at virtual address 607d6085
pgd = 80004000
[607d6085] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 50 Comm: ipu2_task Not tainted 3.10.17-02308-g3700819 #28
task: ac1dc700 ti: ac1ba000 task.ti: ac1ba000
PC is at __kmalloc+0x40/0x114
LR is at __kmalloc+0x14/0x114
pc : [<800bbd40>]    lr : [<800bbd14>]    psr: 200f0013
sp : ac1bbbc8  ip : 008cc000  fp : 00001e40
r10: ac772e00  r9 : 0057b255  r8 : 000000d0
r7 : 00000790  r6 : ac773800  r5 : 607d6085  r4 : ac001b00
r3 : 00000000  r2 : 814f92a0  r1 : 000000d0  r0 : 000398c9
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c53c7d  Table: 3c4c004a  DAC: 00000015
Process ipu2_task (pid: 50, stack limit = 0xac1ba238)
Stack: (0xac1bbbc8 to 0xac1bc000)

Signed-off-by: Sandor Yu <R01008@freescale.com>
10 years agoENGR00293488 ipu: vdi: Support more memory type
Sandor Yu [Fri, 27 Dec 2013 09:10:03 +0000 (17:10 +0800)]
ENGR00293488 ipu: vdi: Support more memory type

__va function only can handle frame buffer from low memory.
Use page_address function to replace it, that can handle
frame buffer from both lower and high memory.

Use ioremap_nocache function to handle Frame buffer
from GPU reserve memory pool.

Correct vdi data save buffer size, save both luma and chroma part for
interleaved YUV format.
For non-interleaved and partial-interleaved YUV format,
save luma part data, chroma part is not covered in the patch.

Signed-off-by: Sandor Yu <R01008@freescale.com>
10 years agoENGR00295892-2: ARM: dts: imx6qdl-sabresd: add retain-state-suspended property in dts
Robin Gong [Tue, 21 Jan 2014 02:44:12 +0000 (10:44 +0800)]
ENGR00295892-2: ARM: dts: imx6qdl-sabresd: add retain-state-suspended property in dts

Add property "retain-state-suspended" in dts.

Signed-off-by: Robin Gong <b38343@freescale.com>
(cherry picked from commit 7fa74454e8fb857b050901097bf78167ac3c04cd)

10 years agoENGR00295892-1: leds: leds-gpio: keep charger led state while system suspended
Robin Gong [Tue, 21 Jan 2014 02:41:46 +0000 (10:41 +0800)]
ENGR00295892-1: leds: leds-gpio: keep charger led state while system suspended

gpio-leds driver common framework didn't take care of this case if use CONFIG_OF
, add property "retain-state-suspended" in dts and check it while gpio-leds
device created.

Signed-off-by: Robin Gong <b38343@freescale.com>
(cherry picked from commit 118c650de0bb518d377b0e6427b38fc101fe31aa)

10 years agoENGR00295814 ARM: dts: imx6qdl: correct gpio key's active state
Anson Huang [Mon, 20 Jan 2014 11:30:09 +0000 (19:30 +0800)]
ENGR00295814 ARM: dts: imx6qdl: correct gpio key's active state

From schematic, below GPIO keys' active state is low, so we need
to set correct active state in dts.

i.MX6Q/DL-SABRESD board: power, vol+ and vol-.
i.MX6Q/DL-SABREAUTO board: home, back, prog, vol+ and vol-.

Signed-off-by: Anson Huang <b20788@freescale.com>
10 years agoENGR00295752: watchdog: imx2_wdt: disable watchdog timer during low power mode
Anson Huang [Mon, 13 Jan 2014 08:17:05 +0000 (16:17 +0800)]
ENGR00295752: watchdog: imx2_wdt: disable watchdog timer during low power mode

We should set watchdog timer to be disabled in low power mode,
as there is no service running in background, otherwise, system
will reset unexpected.

Signed-off-by: Anson Huang <b20788@freescale.com>
10 years agoENGR00291086 crypto kernel module speed test in single fail
Jay Monkman [Fri, 17 Jan 2014 19:06:46 +0000 (13:06 -0600)]
ENGR00291086 crypto kernel module speed test in single fail

The tcrypt module is used to test the crypto API by being passed a
mode=<value> during module load. The test runs to completion before
insmod/modprobe returns. That makes the RCU stall detection in newer
kernels unhappy.

The simple fix is to add CONFIG_PREEMPT to the kernel config. That's
what this patch does. If that introduces other problems,
crypto/tcrypt.c can be modified to call schedule() in the correct
places. Here's a patch that should work if this one has to be
reverted:

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 66d254c..b771f7d 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -33,6 +33,7 @@
 #include <linux/jiffies.h>
 #include <linux/timex.h>
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include "tcrypt.h"
 #include "internal.h"

@@ -182,6 +183,7 @@ static void test_cipher_speed(const char *algo, int enc, unsigned int sec,
                                goto out;
                        }

+                        schedule();
                        printk("test %u (%d bit key, %d byte blocks): ", i,
                                        *keysize * 8, *b_size);

@@ -448,6 +450,7 @@ static void test_hash_speed(const char *algo, unsigned int sec,
                if (speed[i].klen)
                        crypto_hash_setkey(tfm, tvmem[0], speed[i].klen);

+                schedule();
                printk(KERN_INFO "test%3u "
                       "(%5u byte blocks,%5u bytes per update,%4u updates): ",
                       i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen);
@@ -688,12 +691,12 @@ static void test_ahash_speed(const char *algo, unsigned int sec,
                        break;
                }

+                schedule();
                pr_info("test%3u "
                        "(%5u byte blocks,%5u bytes per update,%4u updates): ",
                        i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen);

                ahash_request_set_crypt(req, sg, output, speed[i].plen);
-
                if (sec)
                        ret = test_ahash_jiffies(req, speed[i].blen,
                                                 speed[i].plen, output, sec);
@@ -853,6 +856,7 @@ static void test_acipher_speed(const char *algo, int enc, unsigned int sec,
                                goto out_free_req;
                        }

+                        schedule();
                        pr_info("test %u (%d bit key, %d byte blocks): ", i,
                                *keysize * 8, *b_size);

@@ -934,6 +938,7 @@ static void test_available(void)
                printk("alg %s ", *name);
                printk(crypto_has_alg(*name, 0, 0) ?
                       "found\n" : "not found\n");
+                schedule();
                name++;
        }
 }

Signed-off-by: Jay Monkman <jay.monkman@freescale.com>
(cherry picked from commit 2dc1e6a900df2b575914a7c58fc08e4b072c0e67)

10 years agoENGR00295570 ARM: imx_v7_defconfig: enlarge the CMA size from 256MB to 320MB
Jason Liu [Fri, 17 Jan 2014 07:19:01 +0000 (15:19 +0800)]
ENGR00295570 ARM: imx_v7_defconfig: enlarge the CMA size from 256MB to 320MB

In order to support the dual video use-case, the current CMA reserved size is
not enough now, need enlarge the CMA size from 256M to 320M by default.

Signed-off-by: Jason Liu <r64343@freescale.com>
10 years agoENGR00295564 mmc: sdhci-esdhc-imx: no need busfreq for imx6qdl
Dong Aisheng [Fri, 17 Jan 2014 02:23:22 +0000 (10:23 +0800)]
ENGR00295564 mmc: sdhci-esdhc-imx: no need busfreq for imx6qdl

The usdhc of i.MX6Q/DL can work well under low power mode without
request high bus freq. So we do not need request bus freq for i.MX6Q/DL.
It can save power for i.MX6D/DL due to it saves a lot busfreq switch
cost as well as the CPU time runing on high bus freq after switch
during low power mode.

A new flag ESDHC_FLAG_BUSFREQ is added to indicated this requirement.
Currently only i.MX6SL is using it.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
(cherry picked from commit 075196777d00bf9507d68a76bf25f6c7e776102f)

10 years agoENGR00295423-5 Revert "ENGR00274386-1 ASoC: imx-wm8962: Fix 192KHz playback slow...
Nicolin Chen [Mon, 6 Jan 2014 09:09:27 +0000 (17:09 +0800)]
ENGR00295423-5 Revert "ENGR00274386-1 ASoC: imx-wm8962: Fix 192KHz playback slow issue"

The root cause of playback slow issue should be trying to get DSPCLK_DIV
before enabling SYSCLK of WM8962. Since we have a patch fixed it, we can
revert this work round.
This reverts commit 49a3ca545a88cdf4aa597c4dd7d904b4faaea555.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit a4d253a8ab038661f515d72a175eb11688774874)

10 years agoENGR00295423-4 ASoC: fsl_ssi: Set the default slot number in startup()
Nicolin Chen [Mon, 6 Jan 2014 09:25:09 +0000 (17:25 +0800)]
ENGR00295423-4 ASoC: fsl_ssi: Set the default slot number in startup()

Set a default slot number in startup() so that those who use I2S or other
2-channel DAI format would not need to call set_dai_tdm_slot() in their
machine drivers.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit eb22fac84c62cccb98dc4503bc9a537c435d216b)

10 years agoENGR00295423-3 ASoC: fsl_ssi: Don't disable SSIEN if SSI is already enabled
Nicolin Chen [Mon, 6 Jan 2014 08:55:07 +0000 (16:55 +0800)]
ENGR00295423-3 ASoC: fsl_ssi: Don't disable SSIEN if SSI is already enabled

If disabling SSI when SSI is already in the working state, the whole running
substream would be broken. Thus we here replace it to a safer way -- saving
the current SSIEN value and restore it afterward.

This patch also adds a slot number checking code before setting slot number.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 2f71335a5b39afec4cf976b45683e5de1baed31d)

10 years agoENGR00295423-2 ASoC: fsl_ssi: Don't set clock rate in hw_params()
Nicolin Chen [Mon, 6 Jan 2014 08:43:19 +0000 (16:43 +0800)]
ENGR00295423-2 ASoC: fsl_ssi: Don't set clock rate in hw_params()

Leaving clk_set_rate() in hw_params() is a bit dangerous when handling two
substreams. So we let set_sysclk() finish the clk_set_rate() directly.

This patch also adds spinlock to protect the baud clock configuration so
that it won't be broken during race.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit d3818ba35e4cbb6a3fa769eb83ceb7335b7c19e6)

10 years agoENGR00295423-1 ASoC: fsl_ssi: Implement full symmetry for synchronous mode
Nicolin Chen [Mon, 6 Jan 2014 08:28:51 +0000 (16:28 +0800)]
ENGR00295423-1 ASoC: fsl_ssi: Implement full symmetry for synchronous mode

Since we introduced symmetric_channels and symmetric_samplebits, we can
implement these new feature to SSI synchronous mode and drop the useless
code accordingly.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit 63a818ebd8fa88d8a91faa491c4f7909e7c8bdd5)

10 years agoASoC: wm8962: Enable SYSCLK provisonally before fetching generated DSPCLK_DIV
Nicolin Chen [Wed, 4 Dec 2013 09:22:16 +0000 (17:22 +0800)]
ASoC: wm8962: Enable SYSCLK provisonally before fetching generated DSPCLK_DIV

DSPCLK_DIV can be only generated correctly after enabling SYSCLK. But if the
current bias_level hasn't reached SND_SOC_BIAS_ON, DAPM won't enable SYSCLK,
which would cause the calculation result from DSPCLK_DIV invalid since bit
DSPCLK_DIV will be finally turned to its true value after DAPM enables SYSCLK
while the driver won't calculate it again for the current instance. In this
circumstance, a playback which needs non-zero DSPCLK_DIV would be distorted
due to unexpected clock frequency resulted from an invalid DSPCLK_DIV value.

So this patch provisionally enables the SYSCLK to get a valid DSPCLK_DIV for
calculation and then disables it afterward.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 75704ecfbb4124139b78b71dd603f05d61abe689)
(cherry picked from commit 46ff60a75d0db92848913435bc345def2a2ccc5e)

10 years agoASoC: soc-pcm: Use valid condition for snd_soc_dai_digital_mute() in hw_free()
Nicolin Chen [Wed, 4 Dec 2013 03:18:36 +0000 (11:18 +0800)]
ASoC: soc-pcm: Use valid condition for snd_soc_dai_digital_mute() in hw_free()

The snd_soc_dai_digital_mute() here will be never executed because we only
decrease codec->active in snd_soc_close(). Thus correct it.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 7f62b6ee767586ee7e5d12787dbaaaf47a91979a)
(cherry picked from commit 7ff4bd4a786d049cd4bc7306920e01f348acdaca)

10 years agoASoC: soc-pcm: move DAIs parameters cleaning into hw_free()
Nicolin Chen [Wed, 20 Nov 2013 10:37:09 +0000 (18:37 +0800)]
ASoC: soc-pcm: move DAIs parameters cleaning into hw_free()

We're now applying soc_hw_params_symmetry() to reject unmatched parameters
while we clear parameters in soc_pcm_close(). So here's a use case might be
broken by this mechanism: aplay -Dhw:0 44100.wav 48000.wav 32000.wav

In this case, we call soc_pcm_open()->soc_pcm_hw_params()->soc_pcm_hw_free()
->soc_pcm_hw_params()->soc_pcm_hw_free()->soc_pcm_close() in order. As we
only clear parameters in soc_pcm_close(). The parameters would be remained
in the system even if the playback of 44100.wav is finished.

Thus, this patch is trying to move parameters cleaning into hw_free() so that
the system can continue to serve this kind of use case.

Also, since we set them in hw_params(), it should be better to clear them in
hw_free() for symmetry.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit d3383420c969c25deffd33270ebe321e8401191a)
(cherry picked from commit eb745901177ab907ee2ec2ab8c8ca9b4deb0e35a)

10 years agoASoC: soc-pcm: add symmetry for channels and sample bits
Nicolin Chen [Wed, 13 Nov 2013 10:56:24 +0000 (18:56 +0800)]
ASoC: soc-pcm: add symmetry for channels and sample bits

Some SoCs can only work in mono or stereo mode at one time. So if
we let them capture a mono stream while playing a stereo stream,
there might be a problem occur to one of these two streams: double
paced or slowed down.

In soc-pcm.c, we have soc_pcm_apply_symmetry() to apply the rate
symmetry. But we don't have one for channels.

Likewise, we can treat symmetric_rate as a solution for those SoCs
or CODECs which can not handle asymmetrical LRCLK. But it's also
impossible for them to handle asymmetrical BCLK. And accodring to
BCLK = LRCLK * channel number * slot size(fixed or sample bits),
sample bits might also be a problem if they are not using a fixed
slot size.

Thus, this patch applys symmetry for channels and sample bits.

Meanwhile, there might be a race between two substreams if starting
simultaneously. Previously, we only added warning to compalin but
still using conservative way to let it carry on. However, this patch
rejects the second stream with any unmatched parameter to make sure
the first existing stream won't be broken.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 3635bf09a89cf92b80ac44198c5c8f0989624ea6)
(cherry picked from commit bb3317659966b170d9481fad887df8808774c696)

10 years agoENGR00295218-3 gpu:Remove a potential deadlock in gpu vg kernel.
Loren Huang [Thu, 16 Jan 2014 08:28:54 +0000 (16:28 +0800)]
ENGR00295218-3 gpu:Remove a potential deadlock in gpu vg kernel.

-If _FlushMMU() return error, commitMutex and powerSemaphore will be
locked forever.
-Correct file attribute for gc_hal_base.h

Date: Jan 15, 2014

Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
(cherry picked from commit 0279fa8984dac78c289d264450c76e1156b3ac79)

10 years agoENGR00295218-2 gpu: Allow allocate vg memory from small block reserved memory
Loren Huang [Thu, 16 Jan 2014 08:23:37 +0000 (16:23 +0800)]
ENGR00295218-2 gpu: Allow allocate vg memory from small block reserved memory

-Most vg memory must requires reserved memory, when reserved memory is
used up by 3d appliction. vg hardware can't be constructed successfully,
which cause whole context creation failure(including 3d context).
-Allow allocating vg memory from small block reserved memory can help such
multi context cases.

Date: Jan 15, 2014

Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
(cherry picked from commit 5d7c8c1c695b79f7372de16504292a1241390a8b)

10 years agousb: chipidea: Reallocate regmap only if lpm is detected
Chris Ruehl [Fri, 6 Dec 2013 08:35:12 +0000 (16:35 +0800)]
usb: chipidea: Reallocate regmap only if lpm is detected

The regmap only needs to reallocate if the hw_read on the CAP register shows
lpm is used. Therefore the if() statement check the change.

Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 57fadc36d11a1263b446ef6f5d474d529274faa8)

10 years agousb: chipidea: imx: avoid unnecessary probe defer every time
Peter Chen [Fri, 6 Dec 2013 08:35:13 +0000 (16:35 +0800)]
usb: chipidea: imx: avoid unnecessary probe defer every time

The ci_hdrc_imx's probe needs usbmisc_imx to be loadded beforehand,
so it is better we load usbmisc_imx first.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 4ee606c17718706a2bf0f68c70124a343341b4f1)

10 years agousb: chipidea: host: Only disable the vbus regulator if it is not NULL
Fabio Estevam [Thu, 5 Dec 2013 07:20:49 +0000 (15:20 +0800)]
usb: chipidea: host: Only disable the vbus regulator if it is not NULL

Commit 40ed51a4b (usb: chipidea: host: add vbus regulator
control) introduced a smatch complaint because regulator_disable() is called
without checking whether ci->platdata->reg_vbus is not NULL.

Fix this by adding the check.

This patch is needed for 3.12 stable

Cc: stable <stable@vger.kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit ae93fad5728e08f7cde89f628be2703ad249930d)

10 years agoUSB: chipidea: add guard macro to ci_hdrc_imx.h
Rahul Bedarkar [Tue, 31 Dec 2013 16:28:11 +0000 (21:58 +0530)]
USB: chipidea: add guard macro to ci_hdrc_imx.h

Add guard macro to driver/usb/chipidea/ci_hdrc_imx.h

Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit d27c16a1270c339e62ccc5816f3346d29f6b6c0d)

10 years agousb: chipidea: udc: using MultO at TD as real mult value for ISO-TX
Peter Chen [Fri, 10 Jan 2014 05:51:32 +0000 (13:51 +0800)]
usb: chipidea: udc: using MultO at TD as real mult value for ISO-TX

We have met a bug that the high bandwidth ISO-TX transfer has failed
at the last packet if it is less than 1024, the TD status shows it
is "Transaction Error".

The root cause of this problem is: the mult value at qh is not correct
for current TD's transfer length. We use TD list to queue un-transfer
TDs, and change mult for new adding TDs. If new adding TDs transfer length
less than 1024, but the queued un-transfer TDs transfer length is larger
than 1024, the transfer error will occur, and vice versa.
Usually, this problem occurs at the last packet, and the first packet for
new frame.

We fixed this problem by setting Mult at QH as the largest value (3), and
set MultO (Multiplier Override) at TD according to every transfer length.
It can cover both hardware version less than 2.3 (the real mult is MultO
if it is not 0) and 2.3+ (the real mult is min(qh.mult, td.multo)).

Since the MultO bits are only existed at TX TD, we keep the ISO-RX behavior
unchanged.

For stable tree: 3.11+.

Cc: stable <stable@vger.kernel.org>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reported-by: Matthieu Vanin <b47495@freescale.com>
Tested-by: Matthieu Vanin <b47495@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 1c91f7e338e24fe86e5dba384337f19e49348430)

10 years agousb: chipidea: put hw_phymode_configure before ci_usb_phy_init
Chris Ruehl [Fri, 10 Jan 2014 05:51:30 +0000 (13:51 +0800)]
usb: chipidea: put hw_phymode_configure before ci_usb_phy_init

hw_phymode_configure configures the PORTSC registers and allow the
following phy_inits to operate on the right parameters. This fix a problem
where the UPLI (ISP1504) could not be detected, because the Viewport was not
available and read the viewport return 0's only.

Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit fda8a80b7e944ec29f4438d6e6f159f691ae41a6)

10 years agousb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag
Chris Ruehl [Fri, 10 Jan 2014 05:51:29 +0000 (13:51 +0800)]
usb: chipidea: Fix Internal error: : 808 [#1] ARM related to STS flag

* init the sts flag to 0 (missed)
* fix write the real bit not sts value
* Set PORTCS_STS and DEVLC_STS only if sts = 1

[Peter Chen: This one and the next patch fix the problem occurred imx27
and imx31, and imx27 and imx31 usb support are enabled until 3.14, so
these two patches isn't needed for -stable]

Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 4cf40dc3d21cd9a482d969d1468fd265ec9921dd)

10 years agoENGR00295184-7 mmc: sdhci: do not enable card cd wakeup for gpio case
Dong Aisheng [Mon, 13 Jan 2014 10:27:58 +0000 (18:27 +0800)]
ENGR00295184-7 mmc: sdhci: do not enable card cd wakeup for gpio case

Do not need to enable the controller card cd interrupt wakeup
if using GPIO as card detect since it's meaningless.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00295184-6 dts: imx6: enable sdio wakeup for corresponding boards
Dong Aisheng [Mon, 13 Jan 2014 09:00:46 +0000 (17:00 +0800)]
ENGR00295184-6 dts: imx6: enable sdio wakeup for corresponding boards

Enable the sdio wakeup capability for SDIO cards.
Note: we do not enable it for sabresd usdhc4 since it has a solid
eMMC card on it.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00295184-5 mmc: sdhci-esdhc-imx: add wakeup feature for sdio irq
Dong Aisheng [Mon, 13 Jan 2014 08:47:31 +0000 (16:47 +0800)]
ENGR00295184-5 mmc: sdhci-esdhc-imx: add wakeup feature for sdio irq

Enable wakeup for SDIO IRQ when the host is able to keep power
during suspend.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00295184-4 dts: imx6: enable keep power capability for corresponding boards
Dong Aisheng [Mon, 13 Jan 2014 08:20:55 +0000 (16:20 +0800)]
ENGR00295184-4 dts: imx6: enable keep power capability for corresponding boards

All i.MX6 SabreAuto/SabreSD/EVK has the ability to keep card power
during suspend. So add this capability for them.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00295184-3 mmc: sdhci-esdhc-imx: add keep power feature during suspend
Dong Aisheng [Mon, 13 Jan 2014 08:26:19 +0000 (16:26 +0800)]
ENGR00295184-3 mmc: sdhci-esdhc-imx: add keep power feature during suspend

IMX boards can keep power for cards during suspend.
User can enable it from device tree.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00295184-2 dts: imx6qdl-sabreauto: use external vmmc for sd3 optionally
Dong Aisheng [Fri, 10 Jan 2014 13:31:21 +0000 (21:31 +0800)]
ENGR00295184-2 dts: imx6qdl-sabreauto: use external vmmc for sd3 optionally

SD3.0 cards require power cycle the card during suspend/resume,
or the card re-enumeration after resume will fail to be identified
as UHS card since the card is already working on 1.8v mode and refuse
to ack the S18R request, thus, it will then work on normal high speed
mode instead.

We have to use external vmmc regulator to power cycle the card during
suspend/resume to reset card signal voltage to 3.3v frist for the later
1.8v voltage switch.

However, due to the sabreauto board limitation, we can not use external
regulator to powere off card by default since the card power is shared
with card detect pullup. Disabling the vmmc regulator will also shutdown
the cd pullup which causes incorrect illusion of card exist.
(e.g. plug out the card, mmc core wll think the card is exist since cd pin
is low but it never can find the card)
HW rework removing R695 and enable PAD internal pullup is needed to
fix this isssue.

User can manually open the mask of vmmc in dts to enable using external
regulator if your board has done the rework as said above.
Or by default we still do not power off card during suspend.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00295184-1 mmc: sdhci: do not enable card detect interrupt for gpio cd type
Dong Aisheng [Tue, 31 Dec 2013 08:22:44 +0000 (16:22 +0800)]
ENGR00295184-1 mmc: sdhci: do not enable card detect interrupt for gpio cd type

Except SDHCI_QUIRK_BROKEN_CARD_DETECTION and MMC_CAP_NONREMOVABLE,
we also do not need to handle controller native card detect interrupt
for gpio as card detect case.
If we wrong enabled the card detect interrupt for gpio case,
it will cause a lot of unexpected card detect interrupts during data transfer
which should not happen.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
10 years agoENGR00293505 ARM: dtsi: imx6qdl-sabresd: Change disp id for mipi dsi
Liu Ying [Wed, 8 Jan 2014 07:44:52 +0000 (15:44 +0800)]
ENGR00293505 ARM: dtsi: imx6qdl-sabresd: Change disp id for mipi dsi

Currently, by default, we assign ipu display ports for the following
5 types of display devices on the imx6q sabresd platform in this way:
 ----------------------------------------
|                 | ipu             | di |
|----------------------------------------|
| ldb channel0    | 1(0 for imx6dl) | 0  |
|----------------------------------------|
| ldb channel1    | 1(0 for imx6dl) | 1  |
|----------------------------------------|
| hdmi            | 0               | 0  |
|----------------------------------------|
| mipi dsi        | 0               | 0  |
|----------------------------------------|
| parallel output | 0               | 0  |
 ----------------------------------------

So, the ipu0 di1 display port is not used by any display device.
This patch assigns this unused display port to mipi dsi by default.

Acked-by: Robby Cai <R63905@freescale.com>
Cc: Oliver Brown <oliver.brown@freescale.com>
Cc: Sandor Yu <R01008@freescale.com>
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
10 years agoENGR00294354 gpu:Using vitural memory cause AXI bus error
Loren Huang [Thu, 9 Jan 2014 09:38:37 +0000 (17:38 +0800)]
ENGR00294354 gpu:Using vitural memory cause AXI bus error

There are two possible reasons to cause AXI bus error
1.Allocate Tile status buffer from virtual memory. It seems gc2000
and gc880 doesn't support tile status buffer from virtual memory.
2.Stream buffer using very beginning gpu mmu address. In this condition,
a faked non gpu mmu address maybe generated and fill into gpu which cause
AXI bus error.

[DATE]09-01-2014
Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
10 years agoENGR00292154-3 gpu:Adjust logic for non_paged memory cache
Loren Huang [Thu, 9 Jan 2014 09:36:27 +0000 (17:36 +0800)]
ENGR00292154-3 gpu:Adjust logic for non_paged memory cache

non_page memory cache will only be freed when application exit.
It will have waste when contiguous memory used up.
Add logic to free it when contiguous memory is used up.

[DATE]16-12-2013
Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
10 years agoENGR00292154-2 gpu:Fix random kernel panic for vg application.
Loren Huang [Thu, 9 Jan 2014 09:35:41 +0000 (17:35 +0800)]
ENGR00292154-2 gpu:Fix random kernel panic for vg application.

The root cause is kernelVirtual is not initialized which
may cause incorrect kernel virtual address for vg.

[DATE]16-12-2013
Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
10 years agoENGR00292154-1 gpu:Fix kernel panic when ctrl+c an application
Loren Huang [Thu, 9 Jan 2014 09:35:07 +0000 (17:35 +0800)]
ENGR00292154-1 gpu:Fix kernel panic when ctrl+c an application

When application is using virtual memory, ctrl+c it will have
kernel panic caused by null pointer.
The reason is hardware struture already is freed when driver wants
to use it.

[DATE]16-12-2013
Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
10 years agoENGR00286762 gpu: enable swap rectange and fix a bug
Loren Huang [Thu, 9 Jan 2014 09:41:50 +0000 (17:41 +0800)]
ENGR00286762 gpu: enable swap rectange and fix a bug

add eglSetSwapRectangleANDROID back and enable swap rectange,
fix a swap rectange bug which will swap whole screen instead
of the indicate swap region if region's left and top is (0,0).

Signed-off-by: Richard Liu <r66033@freescale.com>
Acked-by: Shawn Guo
10 years agoENGR00289999 gpu: fixed gc880 invalid command state message
Xianzhong [Thu, 28 Nov 2013 14:37:16 +0000 (22:37 +0800)]
ENGR00289999 gpu: fixed gc880 invalid command state message

gpu kernel dump the error message when enable DEBUG mode:

gckCONTEXT_Update(1493): State 0x0518 is not mapped.
gckCONTEXT_Update(1493): State 0x0520 is not mapped.
gckCONTEXT_Update(1493): State 0x0518 is not mapped.
gckCONTEXT_Update(1493): State 0x0520 is not mapped.

align gpu kernel driver to fix the error message

Signed-off-by: Xianzhong <b07117@freescale.com>
Acked-by: Jason Liu
10 years agoENGR00284988 gpu:Sync gpu kernel driver code
Loren Huang [Thu, 9 Jan 2014 09:03:08 +0000 (17:03 +0800)]
ENGR00284988 gpu:Sync gpu kernel driver code

Sync the code with commit 255ee1de in gpu-viv git.

Mainly covered tickets:
ENGR00288588 fixed system reboot when run webGL test
ENGR00284988 Camera recording kernel crash on WFD source
ENGR00283494 Modify Status to status to avoid build error
ENGR00278179-1 query video memory with seperate types

Signed-off-by: Loren Huang <b02279@freescale.com>
Acked-by: Shawn Guo
10 years agoENGR00294115 PXP: correct the pxp_dispatch thread exit logic
Fancy Fang [Wed, 8 Jan 2014 02:43:17 +0000 (10:43 +0800)]
ENGR00294115 PXP: correct the pxp_dispatch thread exit logic

We should add thread stop checking before handle pxp task,
since the wait condition includes this check.

Signed-off-by: Fancy Fang <B47543@freescale.com>
10 years agoENGR00294114 PXP: correct the PS U/V buffer settings when format is YVU420P
Fancy Fang [Wed, 8 Jan 2014 02:32:52 +0000 (10:32 +0800)]
ENGR00294114 PXP: correct the PS U/V buffer settings when format is YVU420P

The PXP itself doesn't support YVU420P default. But we can get the
U and V address according to the format when we try to set PS_UBUF
and PS_VBUF registers. So the YVU420P can be supported indirectly.

Signed-off-by: Fancy Fang <B47543@freescale.com>
10 years agoENGR00294026-2 ARM: dts: imx: add viim device node in dts
Robin Gong [Tue, 7 Jan 2014 09:38:37 +0000 (17:38 +0800)]
ENGR00294026-2 ARM: dts: imx: add viim device node in dts

Enable viim device node in dts and enable in defconfig

Signed-off-by: Robin Gong <b38343@freescale.com>
10 years agoENGR00294026-1 char: viim: modify for device tree
Robin Gong [Wed, 8 Jan 2014 08:54:36 +0000 (08:54 +0000)]
ENGR00294026-1 char: viim: modify for device tree

Change iim driver code for device tree framework.

Signed-off-by: Robin Gong <b38343@freescale.com>
10 years agoENGR00155179-2: Change imx_viim to mxs_viim.
Terry Lv [Mon, 22 Aug 2011 10:13:00 +0000 (18:13 +0800)]
ENGR00155179-2: Change imx_viim to mxs_viim.

This is the change for driver files.

Signed-off-by: Terry Lv <r65388@freescale.com>
(cherry picked from commit 2febec063fbeb749f993db24e2ae44ddcd5ac0e8)

10 years agoENGR00154889-2: Add virtual iim driver
Terry Lv [Tue, 16 Aug 2011 08:06:24 +0000 (16:06 +0800)]
ENGR00154889-2: Add virtual iim driver

Add virtual iim driver.
This driver will be used by MM team.

Signed-off-by: Terry Lv <r65388@freescale.com>
(cherry picked from commit 6637e480585112bb310fcbd7ccd1cbf1d67cf9ff)
Signed-off-by: Robin Gong <b38343@freescale.com>
10 years agoENGR00292062 usb: chipidea: need to mask INT_STATUS when write otgsc
Peter Chen [Tue, 7 Jan 2014 07:25:26 +0000 (15:25 +0800)]
ENGR00292062 usb: chipidea: need to mask INT_STATUS when write otgsc

For otgsc, both enable bits and status bits are in it. So we need
to make sure the status bits are not be cleared when write enable
bits. It can fix one bug that we plug in/out Micro AB cable fast,
and sometimes, the IDIS will be cleared wrongly when handle last
ID interrupt (ID 0->1), so the current interrupt will not occur.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00292408-2 usb: chipidea: imx: enable different wakeup setting
Peter Chen [Fri, 3 Jan 2014 05:45:30 +0000 (13:45 +0800)]
ENGR00292408-2 usb: chipidea: imx: enable different wakeup setting

We have different wakeup setting for different roles:
For peripheral-only mode, we may only enable vbus wakeup.
The Micro-AB cable should not be considered as wakeup source.
For host-only mode, the ID change or vbus change should not be
considered as wakeup source.
For OTG mode, all wakeup setting should be considered as wakeup
source.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00292408-1 usb: chipidea: add query_available_role interface
Peter Chen [Fri, 3 Jan 2014 05:42:56 +0000 (13:42 +0800)]
ENGR00292408-1 usb: chipidea: add query_available_role interface

The glue layer may need to know current available role, add
ci_hdrc_query_available_role for that.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-7 ARM: imx_v7_defconfig: Add USB PHY NOP driver
Peter Chen [Thu, 26 Dec 2013 05:08:38 +0000 (13:08 +0800)]
ENGR00291282-7 ARM: imx_v7_defconfig: Add USB PHY NOP driver

It is needed for USB HSIC controller

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-6 usb: phy-nop: add the implementation of .set_suspend
Peter Chen [Thu, 26 Dec 2013 08:16:44 +0000 (16:16 +0800)]
ENGR00291282-6 usb: phy-nop: add the implementation of .set_suspend

Add clock enable/disable at .set_suspend if the PHY has
suspend requirement, it can be benefit of power saving for
phy and the whole system (parent clock may also be disabled).

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-5 usb: phy-nop: defer clock prepare until PHY init
Peter Chen [Thu, 26 Dec 2013 08:06:16 +0000 (16:06 +0800)]
ENGR00291282-5 usb: phy-nop: defer clock prepare until PHY init

It can avoid the problem that the prepare count is non-zero even
nop PHY is un-used. In fact, the same operation is already
at the lastest mainline code:

https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers
/usb/phy/phy-generic.c?h=usb-next&id=4d175f340c9c055482688d2205038413dc7b6f1e

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-4 usb: chipidea: imx: add HSIC support
Peter Chen [Thu, 26 Dec 2013 02:45:42 +0000 (10:45 +0800)]
ENGR00291282-4 usb: chipidea: imx: add HSIC support

Add imx6 HSIC support

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-3 ARM: imx6q-arm2-hsic: add usb hsic dts
Peter Chen [Tue, 10 Dec 2013 02:17:02 +0000 (10:17 +0800)]
ENGR00291282-3 ARM: imx6q-arm2-hsic: add usb hsic dts

Since hsic has pin conflict with ethernet, we disable ethernet
at this dts. Besides, please make sure the line of data and strobe
has unchanged between board boots up and hsic controller has
benn enabled.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-2 ARM: imx6: add more dts entries for hsic controller
Peter Chen [Wed, 25 Dec 2013 09:16:21 +0000 (17:16 +0800)]
ENGR00291282-2 ARM: imx6: add more dts entries for hsic controller

- Add usbphy_nop, hsic uses nop phy driver
- Add anatop phandle, hsic needs to access anatop register to
change osc clock for different boards
- Add phy_type, hsic needs to config PHY parameters at portsc

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00291282-1 usb: doc: ci13xxx-imx: update for hsic controller
Peter Chen [Thu, 26 Dec 2013 01:56:21 +0000 (09:56 +0800)]
ENGR00291282-1 usb: doc: ci13xxx-imx: update for hsic controller

Update for hsic controller

Signed-off-by: Peter Chen <peter.chen@freescale.com>
10 years agoENGR00293898 PXP: set the pxp_dispatch kernel thread to be freezable to avoid hang
Fancy Fang [Mon, 6 Jan 2014 08:26:52 +0000 (16:26 +0800)]
ENGR00293898 PXP: set the pxp_dispatch kernel thread to be freezable to avoid hang

By default, the kernel thread cannot be freezed during pm suspend.
So during pm suspend, the pxp_dipatch thread is still handling pxp
task and setting pxp registers. And in some time, this pxp register
setting may happen after the pxp_suspend done. So the hang issue
happens. This patch set the thread to be freezable to freeze it
before pxp_suspend called to avoid this hang issue.

Signed-off-by: Fancy Fang <B47543@freescale.com>
10 years agoENGR00293323 PXP: add WC and cacheable dma buffer support for PXP device
Fancy Fang [Wed, 25 Dec 2013 10:04:56 +0000 (18:04 +0800)]
ENGR00293323 PXP: add WC and cacheable dma buffer support for PXP device

This change add support for new dma buffer type(writecombine and cacheable)
which allows user application has more choices for the buffer type. And if
the dma buffer is cacheable, then add flush interfaces to make it cache
coherent when necessary.

Signed-off-by: Fancy Fang <B47543@freescale.com>
10 years agoENGR00293292 PXP: enhance channel and buffer reclaim for PXP device
Fancy Fang [Wed, 25 Dec 2013 02:03:35 +0000 (10:03 +0800)]
ENGR00293292 PXP: enhance channel and buffer reclaim for PXP device

Enhance channel and buffer reclaim to make sure that all the
allocated resources which are not freed yet to be freed
when the device file descriptor release() function called.

Signed-off-by: Fancy Fang <B47543@freescale.com>
10 years agoENGR00293234 PXP: let irq_pending variable to be atomic
Fancy Fang [Tue, 24 Dec 2013 09:42:22 +0000 (17:42 +0800)]
ENGR00293234 PXP: let irq_pending variable to be atomic

Change irq_pending field in struct pxp_irq_info to a atomic
type. So the spin lock in pxp_irq_info is unnecessary.

Signed-off-by: Fancy Fang <B47543@freescale.com>