ASoC: wm8962: Do not call configure_bclk() inside wm8962_set_dai_sysclk()
Currently after playing any audio file, we get the following error message:
$ aplay clarinet.wav
Playing WAVE 'clarinet.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
$ wm8962 0-001a: Unsupported sysclk ratio 544
This error message appears about 5 seconds after the audio playback has
finished.
Quoting Mark Brown [1]:
"The issue here is triggered by the machine
switching from the FLL to direct MCLK usage where the MCLK isn't
generating a useful ratio.
I suspect we should just kill the configure_bclk() in set_sysclk(), that
one isn't safe as we can't reconfigure a live SYSCLK and it's probably
the one that generates your warnings."
Confirmed that the "Unsupported sysclk ratio" error message comes from
wm8962_set_dai_sysclk(), so get rid of wm8962_configure_bclk() inside this
function.
Anson Huang [Mon, 5 Aug 2013 15:42:00 +0000 (11:42 -0400)]
ENGR00273512-2 ARM: imx: Change GPT clock source to OSC
GPT clock is system clock source, need to avoid freq varying,
as system bus clock(ipg) may be changed, for i.mx6 series SOCs,
all of them except i.mx6q TO1.0 support sourcing GPT clk from
OSC directly, so switch gpt clock to OSC if the SOCs support
this feature, as OSC freq is constant.
ASoC: spdif: Add S20_3LE and S24_LE support for dummy codec drivers
Generally, S/PDIF supports 20bit and optional 24bit samples. Thus add these
two formats for the dummy codec drivers.
If one S/PDIF controller has its own limitation, its CPU DAI driver should
set the supported format by its own circumstance, since the soc-pcm driver
will use the intersection of cpu_dai's formats and codec_dai's formats.
Signed-off-by: Nicolin Chen <b42378@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Liu Ying [Thu, 1 Aug 2013 08:32:11 +0000 (16:32 +0800)]
ENGR00273500 IPUv3 dev: use wait_event_interruptible for ipu task
The ipu task thread checks outstanding tasks to be done on waiting
event uninterruptibly on the function find_task()'s return value.
However, sleeping on waiting event uninterruptibly contributes to
system load average value. This patch changes wait_event() to
wait_event_interruptible() to avoid the load average value inflation.
Peter Chen [Mon, 24 Jun 2013 01:25:59 +0000 (09:25 +0800)]
usb: fix build error without CONFIG_USB_PHY
on i386:
drivers/built-in.o: In function `ci_hdrc_probe':
core.c:(.text+0x20446b): undefined reference to `of_usb_get_phy_mode'
Signed-off-by: Peter Chen <peter.chen@freescale.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fabio Estevam [Tue, 25 Jun 2013 09:58:05 +0000 (12:58 +0300)]
usb: chipidea: ci_hdrc_imx: access phy via private data
commit ea1418b5f1a (usb: chipidea: i.MX: use devm_usb_get_phy_by_phandle to get
phy) causes the USB host to miss the disconnect/connect events.
In order to reproduce this problem:
- Insert a USB thumb into the USB host port (connection is detected)
- Remove it (no disconnect event will be reported)
- Insert the USB thumb again (connection is not detected)
Fix this problem by accessing the usb_phy structure using the private data
instead of accessing a local structure.
Tested on a mx28evk board.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"ci13xxx" is bad for at least the following reasons:
* people often mistype it
* it doesn't add any informational value to the names it's used in
* it needlessly attracts mail filters
This patch replaces it with "ci_hdrc", "ci_udc" or "ci_hw", depending
on the situation. Modules with ci13xxx prefix are also renamed accordingly
and aliases are added for compatibility. Otherwise, no functional changes.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since someone has added camelcase detection to checkpatch.pl, chipidea
udc patches have been very noisy. To make everybody's life easier, this
patch changes camelcase names into something more appropriate to the
coding style. No functional changes.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As drvdata is cleared to NULL at probe failure or at removal by the driver
core, we don't have to call pci_set_drvdata(pci, NULL) any longer in each
driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: add devicetree helpers for determining dr_mode and phy_type
This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sascha Hauer [Thu, 13 Jun 2013 14:59:57 +0000 (17:59 +0300)]
usb: chipidea: introduce dual role mode pdata flags
Even if a chipidea core is otg capable the board may not be. This allows
to explicitly set the core to host/peripheral mode. Without these flags
the driver falls back to the old behaviour.
This patch makes it possible to configure the PTW, PTS and STS bits
inside the portsc register for host and device mode before the driver
starts and the phy can be addressed as hardware implementation is
designed.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: chipidea: udc: add multiple td support to hardware_{en,de}queue
This patch removes the restriction of having a limited amount of only
four active tds on one endpoint. We use the linked list implementation
to manage all tds which get added and removed by hardware_{en,de}queue.
The removal of this restriction adds the driver to run into a hardware
errata. It's possible that the hardware will still address an transfer
descriptor that already got cleaned up. To solve this the patch also
postpone the cleanup of processed tds by one.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: chipidea: udc: manage dynamic amount of tds with a linked list
Instead of having a limited number of usable tds in the udc we use a
linked list to support dynamic amount of needed tds for all special
gadget types. This improves throughput.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Chen [Thu, 13 Jun 2013 14:59:52 +0000 (17:59 +0300)]
usb: chipidea: improve kconfig
Randy Dunlap <rdunlap@infradead.org> reported this problem
on i386:
> drivers/built-in.o: In function `ci_hdrc_host_init':
> (.text+0x2ce75c): undefined reference to `ehci_init_driver'
>
> When USB_EHCI_HCD=m and USB_CHIPIDEA=y.
In fact, this problem is existed on all platforms which are using
chipidea driver. The root cause of this problem is the chipidea host
uses symbol exported from ehci-hcd, but chipidea core
does not depends on USB_EHCI_HCD. So, chipidea driver
will not be compiled as module if USB_EHCI_HCD=m.
It is very hard to give a perfect solution since chipidea core
depends on USB || USB_GADGET, and chipdiea host depends on
both USB_EHCI_HCD and USB_CHIPIDEA, the same problem exists for
gadget.
To fix this problem, we had to have below assumptions:
- If USB_EHCI_HCD=y && USB_GADGET=y, USB_CHIPIDEA can be 'y'.
- If USB_EHCI_HCD=m && USB_GADGET=y, USB_CHIPIDEA=m
or USB_CHIPIDEA_HOST can't be seen if USB_CHIPIDEA=y.
It will cause compile error due to no glue layer for ehci:
> error: #error "missing bus glue for ehci-hcd"
So, we had to compile USB_CHIPIDEA=m if USB_EHCI_HCD=m,
current ehci hcd core guarantee it.
- If USB_EHCI_HCD=y && USB_GADGET=m, USB_CHIPIDEA=m
or USB_CHIPIDEA_UDC can't be seen if USB_CHIPIDEA=y.
Of cos, the gadget will out of working at this situation,
so the user had to compile USB_CHIPIDEA=m.
- USB_EHCI_HCD=m && USB_GADGET=m, we can't see
USB_CHIPIDEA_HOST and USB_CHIPIDEA_UDC unless
USB_CHIPIDEA=m.
The reason why it has above assumptions:
- If both ehci core and gadget core build as module,
the chipidea has to build as module.
- If one of ehci core or gadget core is built in, another
is built as module, we can only enable the function which
is built in, or enable both roles as modules (USB_CHIPIDEA=m),
since chipidea core driver takes care of both host and device roles.
Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fabio Estevam [Thu, 13 Jun 2013 14:59:49 +0000 (17:59 +0300)]
usb: chipidea: ci13xxx_imx: remove reg_vbus
There is no need to keep a 'reg_vbus' indirection, so get rid of it.
The motivation for doing this change is that in the case of error, the current
code only sets the local reg_vbus to NULL instead of updating the private
structure 'data->reg_vbus'.
Updating only the local reg_vbus is wrong, since we currently check for
data->reg_vbus in the ci13xxx_imx_remove() function.
In order to avoid such issue, just use 'data->reg_vbus' directly.
Fabio Estevam [Thu, 13 Jun 2013 14:59:48 +0000 (17:59 +0300)]
usb: chipidea: ci13xxx_imx: fix error path
If usbmisc_ops->post() fails it should point the error path to release all
previously acquired resources, so adjust it to call ci13xxx_remove_device().
While at it, remove the unnecessary 'plat_ci' indirection, as we can directly
use the private structure.
This patch adds iso endpoint support to the device controller.
It makes use of the multiplication bits in the maxpacket field
of the endpoint and calculates the multiplier bits for each
transfer description on every request.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Reviewed-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/chipidea/usbmisc_imx.c:246:5: warning: symbol 'usbmisc_imx_drv_init' was not declared. Should it be static?
drivers/usb/chipidea/usbmisc_imx.c:252:6: warning: symbol 'usbmisc_imx_drv_exit' was not declared. Should it be static?
Anson Huang [Fri, 2 Aug 2013 17:29:17 +0000 (13:29 -0400)]
ENGR00273344-2 thermal: imx: make thermal trip temp changeable
Make all thermal trips' temp changeable:
1. Different users may have different definitions about the
trip temp;
2. For testing purpose, if we want to test cooling device's
function, it is easy to change trip temp to cheat the cooling
device to active, otherwise, need to test it using heating box
which is very inconvenient.
ENGR00273344-1 thermal: imx: Update formula for thermal sensor
Thermal sensor used to need two calibration data which are
in Fuse to get a slope for converting thermal sensor's raw
data to real temperature in degree C.
Now we use an universal formula to get real temp
from internal thermal sensor raw data:
Slope = 0.4297157 - (0.0015976 * 25C fuse);
Using universal formula can reduce the effort of chip
calibration, so update the formula.
ASoC: fsl: Disable SSI in trigger() if RE/TE are both cleared
The code enabled SSIEN when triggered by SNDRV_PCM_TRIGGER_START,
so move the disable code to SNDRV_PCM_TRIGGER_STOP for symmetric.
This also allows us to use the SSI driver more flexible so that
it can support some use cases like "aplay S16_LE.wav S24_LE.wav"
which would call the driver in sequence like:
startup()->hw_params(S16_LE)->trigger(START)->tirgger(STOP)->
hw_params(S24_LE)->trigger(START)->tirgger(STOP)->shutdown()
If we disable SSIEN in shutdown(), the second hw_params() would
bypass the sample bits setting while using symmetric_rate.
Signed-off-by: Nicolin Chen <b42378@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
Wolfram Sang [Wed, 10 Jul 2013 15:57:46 +0000 (16:57 +0100)]
drivers/tty/serial: don't use devm_pinctrl_get_select_default() in probe
Since commit ab78029 (drivers/pinctrl: grab default handles from device core),
we can rely on device core for setting the default pins. Compile tested only.
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Huang Shijie <b32955@freescale.com>
serial: imx: distinguish the imx6q uart from the others
We will add the DMA support for the imx uart. For the firmware's limit,
only the imx6 serial chips (including the imx6q, imx6dl, imx6sl) can
support the DMA.
This patch adds the necessary macro and helper to distinguish the
imx6q uart from the other imx uart. Other chips can use the "fsl,imx6q-uart"
to enable the DMA support.
This patch also replaces the check "is_imx21_uart()" with "!is_imx1_uart()".
Jingoo Han [Tue, 25 Jun 2013 01:08:49 +0000 (10:08 +0900)]
serial: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Barry Song <baohua.song@csr.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Huang Shijie <b32955@freescale.com>
Fabio Estevam [Sun, 9 Jun 2013 18:17:18 +0000 (15:17 -0300)]
serial: imx: Fix serial clock unbalance
Since commit 0c375501 (serial: imx: enable the clocks for console), the
imx_startup() function calls clk_prepare_enable conditionally, so we
need to call clk_disable_unprepare inside imx_shutdown() under the same
condition to avoid unbalanced clock calls.
Huang Shijie [Sun, 9 Jun 2013 02:01:19 +0000 (10:01 +0800)]
serial: imx: enable the clocks for console
The console's clocks are disabled after the uart driver is probed.
It makes that we can see less log from the console now
(though we still can get all the log by the `dmesg`).
So enable the clocks for console, and we can see all the log again.
This patch also disables the sport->clk_per when we fail to enable
the sport->clk_ipg;
Fabio Estevam [Wed, 5 Jun 2013 03:58:46 +0000 (00:58 -0300)]
serial: imx: Fix warning when !CONFIG_SERIAL_IMX_CONSOLE
When CONFIG_SERIAL_IMX_CONSOLE is not selected the following build warnings
appear:
drivers/tty/serial/imx.c:274:13: warning: 'imx_port_ucrs_save' defined but not used [-Wunused-function]
drivers/tty/serial/imx.c:283:13: warning: 'imx_port_ucrs_restore' defined but not used [-Wunused-function]
imx_port_ucrs_save() and imx_port_ucrs_restore() are only used when
CONFIG_CONSOLE_POLL or CONFIG_SERIAL_IMX_CONSOLE are selected, so protect these
functions declaration with a proper ifdef.
Sourav Poddar [Wed, 15 May 2013 15:35:37 +0000 (21:05 +0530)]
serial: Move "uart_console" def to core header file.
Move "uart_console" definition to serial core header file, so that it can be
used by serial drivers.
Get rid of the uart_console defintion from mpc52xx_uart driver.
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Rajendra nayak <rnayak@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ENGR00240988: ARM: imx6q: add dma_zone_size for GPU limit
GPU has a limit on physical address that it accesses, which must be
below 2GiB. Since i.MX6Q/DL maps system memory at 0x10000000 (offset
256MiB), we set dma_zone_size as (SZ_2G - SZ_256M) to ensure that.
ENGR00240988: gpu: fix deprecated idr calls on 3.10 kernel
The idr calls idr_pre_get() and idr_get_new_above() are deprecated on
3.10 kernel and cause the following build issues. Replace the calls
with the new idr_alloc() to fix the issue.
CC drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c: In function ‘_AllocateIntegerId’:
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:776:5: error: ‘idr_pre_get’ is deprecated (declared at include/linux/idr.h:151) [-Werror=deprecated-declarations]
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:784:5: error: ‘idr_get_new_above’ is deprecated (declared at include/linux/idr.h:166) [-Werror=deprecated-declarations]
ENGR00240988: gpu: allocate contiguous memory from CMA for 3.10 kernel
The Contiguous Memory Allocator (CMA) is mature in 3.10 kernel. Let's
change gpu driver to allocate contiguous memory from CMA pool. Doing so
will save not only the memblock reserve calls in machine code but also
the request_mem_region() and ioremap() in gpu driver. And all the
system memory will be seen by kernel no matter whether gpu driver is
running or not.
It also changes the default contiguousSize to 128 MiB for Freescale
adjustment.
ENGR00240988: gpu: __devinit and __devexit are unavailable on 3.10 kernel
__devinit, __devexit and __devexit_p are unavailable on 3.10 kernel.
Remove them for 3.10 to fix the compile issues below.
CC drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.o
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c:1033:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gpu_probe’
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c:1116:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gpu_remove’
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c:1292:19: error: ‘gpu_probe’ undeclared here (not in a function)
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c:1293:5: error: implicit declaration of function ‘__devexit_p’ [-Werror=implicit-function-declaration]
ENGR00240988: gpu: comment out busfreq calls for 3.10 kernel
The busfreq driver is not ready yet on 3.10 kernel. Let's comment out
the busfreq header inclusion and function calls for now, and revisit it
later when busfreq driver is ready.
ENGR00240988: gpu: mach/hardware.h is not available in kernel 3.10
In kernel 3.10, drivers can not include any <mach/*> headers. Do not
include <mach/hardware.h> for 3.10 kernel to fix the follow build
errors.
CC drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_device.o
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_device.c:28:27: fatal error: mach/hardware.h: No such file or directory
CC drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.o
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c:33:27: fatal error: mach/hardware.h: No such file or directory
ENGR00273073-3 ARM: imx_v6_v7_defconfig: run save defconfig
Run make ARCH=arm savedefconfig on imx_v6_v7_defconfig to
clean up some unnecessary/unrelated items, so that next
time when we run savedefconfig, we only see related changes.
No functional changes.
ENGR00273073-2 cpufreq: add interactive governor for cpufreq
cpufreq: interactive: New 'interactive' governor
This governor is designed for latency-sensitive workloads, such as
interactive user interfaces. The interactive governor aims to be
significantly more responsive to ramp CPU quickly up when CPU-intensive
activity begins.
Existing governors sample CPU load at a particular rate, typically
every X ms. This can lead to under-powering UI threads for the period of
time during which the user begins interacting with a previously-idle system
until the next sample period happens.
The 'interactive' governor uses a different approach. Instead of sampling
the CPU at a specified rate, the governor will check whether to scale the
CPU frequency up soon after coming out of idle. When the CPU comes out of
idle, a timer is configured to fire within 1-2 ticks. If the CPU is very
busy from exiting idle to when the timer fires then we assume the CPU is
underpowered and ramp to MAX speed.
If the CPU was not sufficiently busy to immediately ramp to MAX speed, then
the governor evaluates the CPU load since the last speed adjustment,
choosing the highest value between that longer-term load or the short-term
load since idle exit to determine the CPU speed to ramp to.
A realtime thread is used for scaling up, giving the remaining tasks the
CPU performance benefit, unlike existing governors which are more likely to
schedule rampup work to occur after your performance starved tasks have
completed.
The tuneables for this governor are:
/sys/devices/system/cpu/cpufreq/interactive/min_sample_time:
The minimum amount of time to spend at the current frequency before
ramping down. This is to ensure that the governor has seen enough
historic CPU load data to determine the appropriate workload.
/sys/devices/system/cpu/cpufreq/interactive/go_maxspeed_load
The CPU load at which to ramp to max speed.
Signed-off-by: Mike Chan <mike at android.com> Signed-off-by: Todd Poynor <toddpoynor at google.com> Signed-off-by: Allen Martin <amartin at nvidia.com> (submitted improvements) Signed-off-by: Axel Haslam <axelhaslam at ti.com> (submitted improvements) Signed-off-by: Anton Vorontsov <anton.vorontsov at linaro.org> Signed-off-by: Anson Huang <b20788@freescale.com>
ENGR00273073-1 arm: add cpu idle notification callback
Some modules may need to know cpu idle status and take
actions before and after cpu idle, so we can add
notification callback when enter/exit cpu idle, then
modules only need to register this notification callback,
everytime cpu enter/exit idle, the callback chain will be
executed.
Currently only cpufreq interactive governor use this
notification, as it wants to save power, the timers of
interactive governor are only enabled when cpu is not in idle.
Liu Ying [Tue, 25 Jun 2013 09:13:33 +0000 (17:13 +0800)]
ENGR00268508 backlight:Correct the setting for bd props.fb_blank
The patch of "ENGR00264855 backlight: Support backlight shared by
multiple fbs" doesn't consider that bd->props.fb_blank could be
shared by several framebuffers which use the same backlight device.
This causes the pwm backlight wrongly check the fb blank status.
This patch corrects the setting for the fb blank status by
considering all the framebuffers in question to fix the issue.
Liu Ying [Thu, 30 May 2013 05:56:17 +0000 (13:56 +0800)]
ENGR00264855 backlight: Support backlight shared by multiple fbs
One backlight device may shared by multiple framebuffers.
We don't hope blanking one of the framebuffers may turn the
backlight off for all the other framebuffers, since they are
likely active to show display content. This patch adds logic
to record each framebuffer's backlight usage to determine the
backlight device use count and whether the backlight should be
turned on or off.
Richard Zhu [Wed, 24 Jul 2013 06:15:29 +0000 (14:15 +0800)]
ahci_imx: add ahci sata support on imx platforms
imx6q contains one Synopsys AHCI SATA controller, But it can't share
ahci_platform driver with other controllers because there are some
misalignments of the generic AHCI controller - the bits definitions of
the HBA registers, the Vendor Specific registers, the AHCI PHY clock
and the AHCI signals adjustment window(GPR13 register).
- CAP_SSS(bit20) of the HOST_CAP is writable, default value is '0',
should be configured to be '1'
- bit0 (only one AHCI SATA port on imx6q) of the HOST_PORTS_IMPL
should be set to be '1'.(default 0)
- One Vendor Specific register HOST_TIMER1MS(offset:0xe0) should be
configured regarding to the frequency of AHB bus clock.
- Configurations of the AHCI PHY clock, and the signal parameters of
the GPR13
Setup its own ahci sata driver, contained the imx6q specific
initialized codes, re-use the generic ahci_platform driver, and keep
the generic ahci_platform driver clean as much as possible.
ENGR00240987: ARM: dts: enable LDB and LCD support for imx6qdl-sabresd
This is a fast-forward porting of LDB and LCD DTS changes from 3.5.7
kernel.
Along with the changes, the "&ldb" node gets removed from imx6q.dtsi,
since it's only used by community kernel and will conflict with our
internal LDB bindings.
While adding alias for ipu in imx6qdl.dtsi, it also sorts all those
aliases alphabetically.
ENGR00240987: video: port LDB and LCD FB display drivers from 3.5.7 kernel
This is a fast-forward porting of LDB and LCD frame buffer drivers from
3.5.7 kernel to kernel 3.10. The change set is kept as minimum as
possible with only making necessary code changes, which are mostly for
solving compile problems.
* Remove <mach/*> inclusions
* Drop __devinit and __devexit
* Drop vm flag VM_RESERVED
* Protect ldb_setup() with #ifndef MODULE to fix "warning: ‘ldb_setup’
defined but not used" in module build
* Remove fb_prepare_logo() and fb_show_logo() calls, because it breaks
module build, and penguin logo works fine without the calls in
mxc_ipuv3_fb.c
ENGR00240987: ipu: port ipuv3 driver from 3.5.7 kernel
This is a fast-forward porting of ipuv3 driver from 3.5.7 kernel to
kernel 3.10. The change set is kept as minimum as possible with only
making necessary code changes to adapt 3.10 kernel internal API and
framework updates. Everything else should be same as 3.5.7 one. The
change set consists of the following.
* Remove unused Kconfig options MXC_IPU_V3D, MXC_IPU_V3EX and
MXC_IPU_V3H
* Comment out busfreq calls
* Move ipu-v3.h into include/linux/, and remove all <mach/*> includes
* Drop __devinit and __devexit
* Remove assignment of pltfm_data->pg = imx6q_ipu_pg;
* Use generic device_reset() API rather than ipu_pltfm_data->init()
hook to reset IPU
* Includes <linux/sched/rt.h> ipu_device.c to fix undeclared
MAX_USER_RT_PRIO error
* Change compatible string to "fsl,imx6q-ipu" to align with community
kernel
* Define irq_sync before irq_err in DTS to align with community kernel
* Drop "ipu1_" and "ipu2_" from clock names to save the handling of the
second parameter of devm_clk_get()
* Remove the buggy csi_clk setup in ipu_clk_setup_enable() and validate
the clock before operate on it in ipu_csi_enable_mclk()
* Replace iram API (linux/iram_alloc.h) with generic memory pool API
(linux/genalloc.h) in VDOA driver
ARM: dts: imx: ocram size is different between imx6q and imx6dl
The ocram on imx6q is 256 KiB while on imx6dl it's 128 KiB. Let's
have separate node for imx6q and imx6dl. It also changes imx6q size
0x3f000 to 0x40000 to match the hardware.
projects / karo-tx-linux.git / log