Takashi Yoshii [Tue, 8 Oct 2013 05:32:17 +0000 (14:32 +0900)]
clk: emev2: Add support for emev2 SMU clocks with DT
Device tree clock binding document for EMMA Mobile EV2 SMU,
And Common clock framework based implementation of it.
Following nodes are defined to describe clock tree.
- renesas,emev2-smu
- renesas,emev2-smu-clkdiv
- renesas,emev2-smu-gclk
These bindings are designed manually based on
19UH0037EJ1000_SMU : System Management Unit User's Manual
So far, reparent is not implemented, and is fixed to index #0.
Clock tree description is not included, and should be provided
by device-tree.
Signed-off-by: Takashi Yoshii <takasi-y@ops.dti.ne.jp> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Laurent Pinchart [Thu, 17 Oct 2013 21:54:07 +0000 (23:54 +0200)]
clk: shmobile: Add DIV6 clock support
DIV6 clocks are divider gate clocks controlled through a single
register. The divider is expressed on 6 bits, hence the name, and can
take values from 1/1 to 1/64.
Those clocks are found on Renesas ARM SoCs.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
The R-Car Gen2 SoCs (R8A7790 and R8A7791) have several clocks that are
too custom to be supported in a generic driver. Those clocks can be
divided in two categories:
- Fixed rate clocks with multiplier and divisor set according to boot
mode configuration
- Custom divider clocks with SoC-specific divider values
This driver supports both.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Kumar Gala <galak@codeaurora.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
ARM: shmobile: remove unnecessary platform_device as header cleanup
8e0e7aaef3c98c52e85f5640b73ffa82058abcfd
(ARM: shmobile: Drop r8a7779_add_device_to_domain())
removed last user of struct platform_device on this header.
It is no longer needed
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 4 Dec 2013 12:05:56 +0000 (21:05 +0900)]
irqchip: renesas-irqc: Enable mask on suspend
Now when lazy interrupt disable has been enabled in the driver
then extend the code to set IRQCHIP_MASK_ON_SUSPEND which tells
the core that only IRQs marked as wakeups need to stay enabled
during Suspend-to-RAM.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 4 Dec 2013 12:05:46 +0000 (21:05 +0900)]
irqchip: renesas-irqc: Use lazy disable
Set the ->irq_enable() and ->irq_disable() methods to NULL
to enable lazy disable of interrupts. This by itself provides
some level of optimization, but is mainly enabled as ground
work for future Suspend-to-RAM wake up support.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 27 Nov 2013 23:15:18 +0000 (08:15 +0900)]
ARM: shmobile: Use r8a7779 suffix for INTC compat string
Add "renesas,intc-irqpin-r8a7779" to the compatible string for the
IRQ pins in case of r8a7779 INTC. This makes the INTC irqpin follow
the same style as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 27 Nov 2013 23:15:11 +0000 (08:15 +0900)]
ARM: shmobile: Use r8a7778 suffix for INTC compat string
Add "renesas,intc-irqpin-r8a7778" to the compatible string for the
IRQ pins in case of r8a7778 INTC. This makes the INTC irqpin follow
the same style as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 27 Nov 2013 23:15:04 +0000 (08:15 +0900)]
ARM: shmobile: Use r8a7740 suffix for INTC compat string
Add "renesas,intc-irqpin-r8a7740" to the compatible string for the
IRQ pins in case of r8a7740 INTC. This makes the INTC irqpin follow
the same style as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 27 Nov 2013 23:14:57 +0000 (08:14 +0900)]
ARM: shmobile: Use sh73a0 suffix for INTC compat string
Add "renesas,intc-irqpin-sh73a0" to the compatible string for the
IRQ pins in case of sh73a0 INTC. This makes the INTC irqpin follow
the same style as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Laurent Pinchart [Tue, 19 Nov 2013 12:59:49 +0000 (13:59 +0100)]
ARM: shmobile: armadillo-reference: Use low level IRQ for ST1231
The device is configured to generate an active-low interrupt signal that
needs to be acknowledged by the host. Configure the IRQ to trigger on
low level.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 20 Nov 2013 00:07:40 +0000 (09:07 +0900)]
ARM: shmobile: Use r8a7790 suffix for IRQC compat string
Add "renesas,irqc-r8a7790" to the compatible string for IRQC
in case of r8a7790. This makes the IRQC follow the same style
as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 20 Nov 2013 00:05:53 +0000 (09:05 +0900)]
ARM: shmobile: Use r8a7790 suffix for MMCIF compat string
Add "renesas,mmcif-r8a7790" to the compatible string for MMCIF
in case of r8a7790. This makes the MMCIF follow the same style
as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 20 Nov 2013 04:18:05 +0000 (13:18 +0900)]
ARM: shmobile: Use r8a7791 suffix for IRQC compat string
Add "renesas,irqc-r8a7791" to the compatible string for IRQC
in case of r8a7791. This makes the IRQC follow the same style
as the other devices and also makes it more future proof.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ARM: shmobile: kzm9g-reference: Use falling edge IRQ for LAN9221
The device is configured to generate an active-low interrupt signal that
is automatically deasserted without requiring any action from the host.
Configure the IRQ to trigger on falling edge.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ARM: shmobile: bockw-reference: Use falling edge IRQ for LAN9221
The device is configured to generate an active-low interrupt signal that
is automatically deasserted without requiring any action from the host.
Configure the IRQ to trigger on falling edge.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ARM: shmobile: marzen-reference: Use falling edge IRQ for LAN9221
The device is configured to generate an active-low interrupt signal that
is automatically deasserted without requiring any action from the host.
Use falling edge trigger as that is the configuration currently used on
the board.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ARM: shmobile: lager: add gpio/fixed regulator for SDHI
Fixed regulator is used for SDHI0/2 Vcc.
We should use da9063 driver for Vccq,
but, it doesn't have regulator support at this point.
This patch uses gpio-regulator for it as quick-hack.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Mark Brown <broonie@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Laurent Pinchart [Thu, 28 Nov 2013 16:27:29 +0000 (17:27 +0100)]
ARM: Kconfig: Mention Renesas ARM SoCs instead of SH-Mobile
Only the SH-Mobile product name is mentioned in the Kconfig descriptions
and help texts. This makes it difficult for external engineers working
on other Renesas platforms to find upstream platform support as the
combination of the SH-Mobile name and using the product number proved an
effective method of concealment.
Replace the "SH-Mobile" name with "Renesas ARM SoCs" in all the related
descriptions, help texts and comments.
Reported-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Laurent Pinchart [Thu, 28 Nov 2013 15:17:58 +0000 (16:17 +0100)]
ARM: shmobile: mackerel: Use pinconf API to configure pin pull-down
The USB0 and USB1 VBUS pins must be pulled down. Add corresponding
configuration entries in the pinctrl map table instead of manually
poking the pin control registers.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Paul Walmsley [Wed, 27 Nov 2013 00:49:38 +0000 (16:49 -0800)]
ARM: shmobile: mackerel: clk_round_rate() can return a zero to indicate an error
Treat both negative and zero return values from clk_round_rate() as
errors. This is needed since subsequent patches will convert
clk_round_rate()'s return value to be an unsigned type, rather than a
signed type, since some clock sources can generate rates higher than
(2^31)-1 Hz.
Eventually, when calling clk_round_rate(), only a return value of zero
will be considered a error. All other values will be considered valid
rates. The comparison against values less than 0 is kept to preserve
the correct behavior in the meantime.
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 20 Nov 2013 07:41:48 +0000 (16:41 +0900)]
ARM: shmobile: Add pinctrl_register_mappings() for Koelsch
Add code to setup the r8a7791 PFC for the Koelsch board.
At this point serial consoles are added, and in the near
future other platform-device-only devices will be added
here like for instance the r8a7791 DU.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 20 Nov 2013 00:02:31 +0000 (09:02 +0900)]
ARM: shmobile: Use ->init_late() on Lager
Hook in shmobile_init_late() on Lager V2. This enables some PM
related things like CPUIdle and Suspend-to-RAM.
With this patch applied it is possible to use Suspend-to-RAM:
# echo enabled > /sys/class/tty/ttySC6/power/wakeup
# echo mem > /sys/power/state
(wake by sending a character on the serial console)
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Magnus Damm [Wed, 20 Nov 2013 03:54:34 +0000 (12:54 +0900)]
ARM: shmobile: Use ->init_late() on Koelsch
Hook in shmobile_init_late() on Koelsch. This enables some PM
related things like CPUIdle and Suspend-to-RAM.
With this patch applied it is possible to use Suspend-to-RAM:
# echo enabled > /sys/class/tty/ttySC6/power/wakeup
# echo mem > /sys/power/state
(wake by sending a character on the serial console)
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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