review.tizen.org Git - profile/common/kernel-common.git/log

spi: sh-msiof: Handle dmaengine_prep_slave_single() failures gracefully

As typically a shmobile SoC has less DMA channels than devices that can use
DMA, we may want to prioritize access to the DMA channels in the future.
This means that dmaengine_prep_slave_single() may start failing
arbitrarily.

Handle dmaengine_prep_slave_single() failures gracefully by falling back to
PIO. This requires moving DMA-specific configuration of the MSIOF device
after the call(s) to dmaengine_prep_slave_single().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 279d2378c9c4f05bbe41b55625b4003871026266)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: sh-msiof: Add DMA support

Add DMA support to the MSIOF driver using platform data.

As MSIOF DMA is limited to 32-bit words (requiring byte/wordswapping for
smaller wordsizes), and the group length is limited to 256 words, DMA is
performed on two fixed pages, allocated and mapped at driver initialization
time.

Performance figures (in Mbps) on r8a7791/koelsch at different SPI clock
frequencies for 1024-byte and 4096-byte transfers:

                   1024 bytes           4096 bytes
  -  3.25 MHz: PIO  2.1, DMA  2.6 | PIO  2.8, DMA  3.1
  -  6.5  MHz: PIO  3.2, DMA  4.4 | PIO  5.0, DMA  5.9
  - 13    MHz: PIO  4.2, DMA  6.6 | PIO  8.2, DMA 10.7
  - 26    MHz: PIO  5.9, DMA 10.4 | PIO 12.4, DMA 18.4

Note that DMA is only faster than PIO for transfers that exceed the FIFO
size (typically 64 words / 256 bytes).

Also note that large transfers (larger than the group length for DMA, or
larger than the FIFO size for PIO), should use cs-gpio (with the
appropriate pinmux setup), as the hardware chipselect will be deasserted in
between chunks.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit b0d0ce8b6b91a0f6f99045b6019fc4c824634fb4)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: sh-msiof: Refactor sh_msiof_transfer_one()

  - Move buffer pointer and length setup to the top,
  - Make unsigned values unsigned,
  - Loop over words and increment pointers instead of recalculating them,
    which allows to kill bytes_done.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 0312d59130693adad85c2acfbc0b92a669930a41)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: sh-msiof: Improve transfer error handling

  - Add a timeout when waiting for the transfer complete interrupt,
  - If sh_msiof_spi_stop() fails, there's no need to clear IER, as the
    interrupt handler has already done that,
  - Propagate transfer failures in sh_msiof_transfer_one().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 75b82e23a4ea20a9e1a48695ff5e01761889dbb3)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: sh-msiof: Extract sh_msiof_spi_{start,stop}() helpers

Based on an old patch by Guennadi Liakhovetski <g.liakhovetski@gmx.de>

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 76c02e71612533206cb062b875c9609bce83d23a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: sh-msiof: Add more register documentation

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 2e2b36872d7b45b1f88a590283b14c67931b777f)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

sh-pfc: r8a7791: fix CAN pin groups

I had made last-minute changes before submitting the patch "sh-pfc: r8a7791:
add CAN pin groups"; now I'm seeing that they weren't complete: I had missed
update to the pin group names in pin[01]_groups[]. Drop the "_a" suffixes there.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 302fb1781783ded370f515e8e649b8285ee29cdc)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

serial: sh-sci: Add calculation recive margin for HSCIF

When the error of the same bit rate is detected, we will need to select
the recive margin is large. Current code holds the minimum error, it does
not have to check the recive margin. This adds this calculation.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 730c4e782c039caf40b467c35f595c005e94220c)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

serial: sh-sci: Fix range check of bit-rate for HSCIF

If bit-rate calculation result of HSCIF is expect 255 from 0,
driver does not calculate error bit. However, we need to round
the value to calculate error bit in the case of negative value.
This rounds the value of bit-rate using clamp(), and bit-rate is the
case of negative value, it enables the calculation of the error bit.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit bcb9973a6097652a12660958449301aada41de9c)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

serial: sh-sci: Updated calculation of bit error rate and bit rate

Currently, the decimal point is discarded calculation of BRR.
Therefore, it can not calculate a value close to the correct value.
This patch fixes this problem by using DIV_ROUND_CLOSEST.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit b7d66397f4d282ddf2a2fe516fc9329c5a063459)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

dmaengine: sh: Rework Kconfig and Makefile

Separate helpers and drivers in the Kconfig and Makefile to improve
readability and move the CONFIG_OF dependency from the Makefile to
Kconfig.

[pebolle@tiscali.nl: reported need to rename SHDMA_R8A73A4 instances]
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: squashed rename of SHDMA_R8A73A4 instances]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
(cherry picked from commit 9f2c2bb31258e11b1ebaf73bdf2a88f8afaa2dd2)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

dmaengine: shdma: Use defines instead of hardcoded numbers

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 0cdbee33ea42bfd5f61f824e258a1a0944dd2a27)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

dmaengine: shdma: Add more register documentation

Also add a few definitions that were missing.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 6b32fafee2bb5fcf0b3d3d04a9762d3a0212089e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

usb: renesas_usbhs: add R-Car Gen. 2 init and power control

In preparation for DT conversion to reduce reliance on platform device
callbacks.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit 8ecef00fe1f33658ee36e902dba6850b51312073)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

usb: renesas_usbhs: gadget: fix re-enabling pipe without re-connecting

This patch fixes an issue that the renesas_usbhs driver in gadget mode
cannot work correctly even if I disabled DMAC of the driver when I used
the g_zero driver and the testusb tool.

When a usb cable is re-connected, the renesas_usbhs driver calls the
usbhsp_flags_init() (via usbhs_hotplug() --> usbhs_mod_call(start) -->
usbhsg_try_start() --> usbhs_pipe_init()). However, the driver doesn't
call the usbhsp_flags_init() when usbhsg_ep_disable() is called.
So, if a gadget driver calls usb_ep_enable() and usb_ep_disable() again
and again, the renesas_usbhs driver will output the following log:

renesas_usbhs renesas_usbhs: can't get pipe (BULK)
renesas_usbhs renesas_usbhs: wrong recip request

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit dfb87b8bfe09f933abaf387693992089f6f9053e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

usb: renesas_usbhs: fix usbhs_pipe_malloc() to re-enable a pipe.

This patch fixes an issue that the driver cannot push a new data when
a pipe is re-enabled after the pipe is queued.

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit 6a0541599f54b556442d6130e4f9faaad91bf3a2)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

gpio: rcar: clamp returned value to [0,1]

While it will be clamped to bool by gpiolib, let's make this sane
in the driver as well.

Signed-off-by: Jürg Billeter <j@bitron.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 7cb5409b10d9f8316ca2539591acb6a5f7fd4139)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_tmu: Add DT support

Document DT bindings and parse them in the TMU driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 3e29b5543f9250bb358169cff0594f58284ece74)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_tmu: Replace global spinlock with a per-device spinlock

The global spinlock is used to protect the shared start/stop register.
Now that all TMU channels are handled by a single device instance, use a
per-device spinlock.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 2b027f1f0f887097b4140a71b5c1e878da1e2fd9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_tmu: Drop support for legacy platform data

Now that all platforms have switched to the new-style platform data,
drop support for the legacy version.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 681b9e852cf2d48ebd63954028814c7cece71945)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_mtu2: Add DT support

Document DT bindings and parse them in the MTU2 driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
(cherry picked from commit cca8d0596c4c7acb371ea1bc5eee9b404b30516a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_mtu2: Replace global spinlock with a per-device spinlock

The global spinlock is used to protect the shared start/stop register.
Now that all MTU2 channels are handled by a single device instance, use
a per-device spinlock.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
(cherry picked from commit 8b2463d8cae2dda0c98ab5a15f25a0350a0e998d)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_mtu2: Drop support for legacy platform data

Now that all platforms have switched to the new-style platform data,
drop support for the legacy version.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
(cherry picked from commit 1a5da0e43be0c07462e445549dbdd4a1731a3e11)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_cmt: Add DT support

Document DT bindings and parse them in the CMT driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 1768aa2f4c1248051013282c6cf63b368016cb53)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: shmobile: Remove unused sh_timer_config members

The name, channel_offset, timer_bit, clockevent_rating and
clocksource_rating members are unused. Remove them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 628627bfd943c077c65489acd8b23c7bb14eb0e2)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_cmt: Replace global spinlock with a per-device spinlock

The global spinlock is used to protect the shared start/stop register.
Now that all CMT channels are handled by a single device instance, use a
per-device spinlock.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit de599c8843ebbdfc29a119c94af481b1de76700e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

clocksource: sh_cmt: Drop support for legacy platform data

Now that all platforms have switched to the new-style platform data,
drop support for the legacy version.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 31e912f598371bcfdffc990289029e1110f8b3f9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

sh: Switch to new style MTU2 device

The MTU2 (Multi-Function Timer Pulse Unit 2) driver implements a new
style of platform data that handles the timer as a single device with
multiple channel. Switch from the old-style platform data to the
new-style platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 5204601c0877b3ffc90e417bf30fccc9bdf47962)
Signed-off-by: Simon Horman <horms@verge.net.au>

sh: Switch to new style TMU device

The TMU (Timer Unit) driver implements a new style of platform data that
handles the timer as a single device with multiple channel. Switch from
the old-style platform data to the new-style platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 1399c195ef5009bf44a41649da4718f6e67c0bff)
Signed-off-by: Simon Horman <horms@verge.net.au>

sh: Switch to new style CMT device

The CMT (Compare Match Timer) driver implements a new style of platform
data that handles the timer as a single device with multiple channel.
Switch from the old-style platform data to the new-style platform data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 9b17e48cd4df4e129976c37660cf9ec644c66059)
Signed-off-by: Simon Horman <horms@verge.net.au>

sh-pfc: sh73a0: Introduce the use of devm_regulator_register

This patch moves data allocated using regulator_register to
devm_regulator_register and does away the calls to regulator_unregister.
The sh73a0_pinmux_soc_exit function is no longer needed and is removed.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 01a7d13a8cfa6424a9568f3c7e925ace57cd3fc8)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

sh-pfc: Add renesas,pfc-r8a7791 to binding documentation

The driver already supports the r8a7791 SoC, and "renesas,pfc-r8a7791"
is already in use.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 590b4ceab95761c45dfc5d9afbbc6810c1fd64a7)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

sh-pfc: r8a7791: add CAN pin groups

Add CAN0/1 data/clock pin groups to R8A7791 PFC driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit b067580f07b0ae5c323a1d5cd0caa629050406e3)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: tmio-mmc: Add renesas, sdhi-r8a7791 to binding documentation

The driver already supports the r8a7791 SoC, and "renesas,sdhi-r8a7791"
is already in use.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Ian Molton <ian.molton@codethink.co.uk>
Cc: Chris Ball <chris@printf.net>
Cc: linux-mmc@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit bf7978483c0c119e0d650710ee713f0ed95939ca)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

sh_eth: remove checks around dev_kfree_skb() calls

Since consume_skb() (and hence dev_kfree_skb() macro) checks the passed pointer
for NULL, there's no need to check for NULL before invoking dev_kfree_skb().

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 179d80aff82bf8dff9db30589fe5a2297c454d35)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: rspi: Pass spi_master pointer to rspi_release_dma()

rspi_release_dma() doesn't need access to any fields in the driver private
data, except for the pointer to the SPI master object. Hence just pass the
needed pointer.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit afcc98dec91b7754e754670bdec0290aa07c3565)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

spi: rspi: Remove unused variable in rspi_rz_transfer_one()

Introduced by commit 8b983e90ea1a3dd82070f96c062ad521a06b7cc0 ("spi: rspi:
Extract rspi_common_transfer()"), which removed its users.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 95029a00886f0c8d79e700cb8983b881c75af0f1)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

PCI: rcar: Remove rcar_pcie_setup_window() resource argument

rcar_pcie_setup_window() took both the window number and the resource,
which was redundant because we can look up the resource from the window
number.

Remove the "res" argument.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 0549252a1da98c5c39610e1700a9a1755acd0a70)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

PCI: rcar: Cleanup style and formatting

This patch just makes symbol and function name changes to avoid potential
conflicts, along with minor formatting changes.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit b77188495de64abb5393cb96ac5ec518cf386310)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

PCI: rcar: Use correct initial HW settings

Although the R-Car PCIe driver works as it is, there are a number of
incorrect settings that this patch corrects. It corrects:
- enabling the PCI Express Extended Cap ID.
- setting Data Link Layer Link Active Reporting Capable.
- terminating list of capabilities.

It also removes enabling the MAC data scrambling as this is the default HW
setting, and removes incorrect code to enable slave bus mastering as this
is done by the PCI core.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 2c3fd4c935880d756cb57f4bcdb35bb4b8348ec8)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

PCI: rcar: Remove redundant config accessor register number checks

The PCI core will have already checked the configuration register address
before calling the {read|write}() methods; so don't check it again in these
methods.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 8eb12c3b420fb5243ce9b4a8878f3b88a3c91e33)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

v4l: vb2: Fix stream start and buffer completion race

videobuf2 stores the driver streaming state internally in the queue in
the start_streaming_called variable. The state is set right after the
driver start_stream operation returns, and checked in the
vb2_buffer_done() function, typically called from the frame completion
interrupt handler. A race condition exists if the hardware finishes
processing the first frame before the start_stream operation returns.

Fix this by setting start_streaming_called to 1 before calling the
start_stream operation, and resetting it to 0 if the operation fails.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
(cherry picked from commit 752bfe5395aa0609def7292c97a37c314ace5837)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
drivers/media/v4l2-core/videobuf2-core.c

v4l: Add premultiplied alpha flag for pixel formats

When set, the new V4L2_PIX_FMT_FLAG_PREMUL_ALPHA flag indicates that the
pixel values are premultiplied by the alpha channel value.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
(cherry picked from commit e6619dfbf287a75082ec04bc2a8d2df6e3a16299)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
Documentation/DocBook/media/v4l/v4l2.xml

v4l: Support extending the v4l2_pix_format structure

The v4l2_pix_format structure has no reserved field. It is embedded in
the v4l2_framebuffer structure which has no reserved fields either, and
in the v4l2_format structure which has reserved fields that were not
previously required to be zeroed out by applications.

To allow extending v4l2_pix_format, inline it in the v4l2_framebuffer
structure, and use the priv field as a magic value to indicate that the
application has set all v4l2_pix_format extended fields and zeroed all
reserved fields following the v4l2_pix_format field in the v4l2_format
structure.

The availability of this API extension is reported to userspace through
the new V4L2_CAP_EXT_PIX_FORMAT capability flag. Just checking that the
priv field is still set to the magic value at [GS]_FMT return wouldn't
be enough, as older kernels don't zero the priv field on return.

To simplify the internal API towards drivers zero the extended fields
and set the priv field to the magic value for applications not aware of
the extensions.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
(cherry picked from commit af7553db487e1dbcd069d1bb9426fc8c591ea1f4)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
Documentation/DocBook/media/v4l/v4l2.xml
Documentation/DocBook/media/v4l/vidioc-querycap.xml
drivers/media/platform/davinci/vpif_display.c
drivers/media/platform/mem2mem_testdev.c
include/uapi/linux/videodev2.h

DocBook: media: Document ALPHA_COMPONENT control usage on output devices

Extend the V4L2_CID_ALPHA_COMPONENT control for use on output devices,
to set the alpha component value when the output format doesn't have an
alpha channel.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
(cherry picked from commit e632d2f4e25c574a29b269f9f4b0cef2995e402d)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

v4l: Add ARGB and XRGB pixel formats

The existing RGB pixel formats are ill-defined in respect to their alpha
bits and their meaning is driver dependent. Create new standard ARGB and
XRGB variants with clearly defined meanings and make the existing
variants deprecated.

The new pixel formats 4CC values have been selected to match the DRM
4CCs for the same in-memory formats.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
(cherry picked from commit 3ddcdb02a95582bf472a89c934bca6e56f07a2db)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml

vb2: only call start_streaming if sufficient buffers are queued

In commit 02f142ecd24aaf891324ffba8527284c1731b561 support was added to
start_streaming to return -ENOBUFS if insufficient buffers were queued
for the DMA engine to start. The vb2 core would attempt calling
start_streaming again if another buffer would be queued up.

Later analysis uncovered problems with the queue management if start_streaming
would return an error: the buffers are enqueued to the driver before the
start_streaming op is called, so after an error they are never returned to
the vb2 core. The solution for this is to let the driver return them to
the vb2 core in case of an error while starting the DMA engine. However,
in the case of -ENOBUFS that would be weird: it is not a real error, it
just says that more buffers are needed. Requiring start_streaming to give
them back only to have them requeued again the next time the application
calls QBUF is inefficient.

This patch changes this mechanism: it adds a 'min_buffers_needed' field
to vb2_queue that drivers can set with the minimum number of buffers
required to start the DMA engine. The start_streaming op is only called
if enough buffers are queued. The -ENOBUFS handling has been dropped in
favor of this new method.

Drivers are expected to return buffers back to vb2 core with state QUEUED
if start_streaming would return an error. The vb2 core checks for this
and produces a warning if that didn't happen and it will forcefully
reclaim such buffers to ensure that the internal vb2 core state remains
consistent and all buffer-related resources have been correctly freed
and all op calls have been balanced.

__reqbufs() has been updated to check that at least min_buffers_needed
buffers could be allocated. If fewer buffers were allocated then __reqbufs
will free what was allocated and return -ENOMEM. Based on a suggestion from
Pawel Osciak.

__create_bufs() doesn't do that check, since the use of __create_bufs
assumes some advance scenario where the user might want more control.
Instead streamon will check if enough buffers were allocated to prevent
streaming with fewer than the minimum required number of buffers.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
(cherry picked from commit b3379c6201bb3555298cdbf0aa004af260f2a6a4)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
drivers/media/platform/davinci/vpbe_display.c
drivers/media/platform/davinci/vpif_capture.c
drivers/media/platform/davinci/vpif_display.c
drivers/media/v4l2-core/videobuf2-core.c

vb2: rename queued_count to owned_by_drv_count

'queued_count' is a bit vague since it is not clear to which queue it
refers to: the vb2 internal list of buffers or the driver-owned list
of buffers.

Rename to make it explicit.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
(cherry picked from commit 6ea3b980f058d9dbc79ba88c652d581fa2d00792)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
drivers/media/v4l2-core/videobuf2-core.c

vb2: Check if there are buffers before streamon

This patch adds a test preventing streamon() if there is no buffer
ready.

Without this patch, a user could call streamon() before
preparing any buffer. This leads to a situation where if he calls
close() before calling streamoff() the device is kept streaming.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
(cherry picked from commit 249f5a58bc844506fef2e9d5d55a88fbc708c5fa)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

pinctrl: sh-pfc: r8a7791: Add HSCIF pin support

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 92b14d56d3edf68eff258bc69a62e295dbfb4780)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: sh-mmcif: final error path cleanup

Remove the error path items that are no longer needed. The mmc card-detect
code cleans up after itself (and registers with devm) and the host error
is the same as the clock disable.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 39792eaab1561e145b07cc36025c23b175b26a1e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: sh-mmcif: no need to call pm_runtime_suspend on error

The pm_runtime call should implicitly disable the device once the
probe is over if there is no explicit reference gained. There is no
need to call pm_runtime_suspend() before the pm_runtime_disable()
call.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 17ec61c8e8dd656647b50b1db1e223c02fb051a6)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: sh-mmcif: use devm_ for irq management

Use devm_request_threaded_irq() for the host interrupt handlers so we
do not have to worry about freeing them on exit or error. Tidies up the
exit path code for the driver.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 75bed8a19d15f94bf712bf610ad4e3425c035ebc)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: sh-mmcif: use devm_ for clock management

Use the devm_clk_get() code to get the clock and allow it to be freed
automatically on release.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 5337a334e4f4f1e9384054e34e08ffab9be93c81)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: sh-mmcif: use devm_ for ioremap

Start tidying the probe/release code by using devm_ioremap_resource() to
map the IO registers.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 402de61c9ef9aff9990f6629cc7527827db331e0)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

mmc: sh-mmcif: update to print version and bus clock rate on probe

Change the initial print to show chip version and the bus rate it is
working at instead of the driver version. This is more useful information
as we already know which driver version from the kernel it is in.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit ba09ab6ba9d2ec27cd68e8cf655ac163cd4d5f6a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

Documentation: dt-bindings: update xhci-platform DT binding for R-Car H2 and M2

This commit extends the compatible string list of the xhci-platform
binding with the new "renesas,xhci-r8a7790" and "renesas,xhci-r8a7791"
compatible strings. It is used to describe the xHCI controller which
is available in the R-Car H2 and M2 SoCs.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit c7c1ce8061c0dc5b848e5df0ba459dbbf78057d7)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

Documentation: dt-bindings: update xhci-platform DT binding

This commit extends the compatible string list of the xhci-platform
binding with the new "armada-375-xhci" and "armada-380-xhci"
compatible strings. It is used to describe the XHCI controller which
is available in the Armada 375 and 38x SoCs.

It also indicates that an optional 'clocks' property is now supported.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 023bfe83e278dca17abc491f8e1182211edb0559)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: fixup index of src/dst mod when capture

Index of dma name should use -1, not +1 when capture case.
Thank you Dan.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 4cf612780cec81317a0278b28679a8b69ea8f09c)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: add rsnd_gen_dma_addr() for DMAC addr

The DMAC src/dst addr needs to be set from driver when DT case.
(It was set from SoC/DMAEngine code when non-DT case)
This patch adds rsnd_gen_dma_addr() to set DMAC src/dst addr.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit ad32d0c7b0e993433df152ae747652647eb65a27)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: care DMA slave channel name for DT

Renesas sound driver is supporting to use DMAEngine.
But, DMA slave channel name "tx", "rx" is not enough
in DT case.
Becuase, it has many ports and path combination.

This patch adds rsnd_dma_of_name() to find
DMA channel name, for example
memory to SSI0 is "mem_ssi0",
SSI0 to memory is "ssi0_mem",
SSI0 to SRC0   is "ssi0_src0",
SRC0 to SSI0   is "src0_ssi0",
SRC0 to DVC0   is "src0_dvc0"...

Renesas sound want to use PIO transfer mode for some reasons.
It will be PIO tranfer mode if device node doesn't have
DMA settings.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 199e7688bdf7d188d70c3432c96ec13d8a14b341)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: module name is unified

Renesas sound driver uses many modules (= SSI/SRC/DVC),
and each module had own name.
But, each module name can be used as several purpose,
like clock name, DMA name etc...
This patch uses common name for each module.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 8aefda5046f417c551e3acdeb2cf37949a4b75e9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: remove rsnd_src_non_ops

Renesas sound driver is supporting Gen1/Gen2.
SRC probe can return error if it was unknown
generation.
Now, rsnd_src_non_ops is not needed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 033e7ed85b8513db4efacbdf0f22db2bed4ff405)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: save platform_device instead of device

DT DMA support needs struct platform_device pointer,
and it can get struct device pointer from platform_device.
Save platform_device instead of device.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 9f464f8e076e6fcc8d249e76d84f4fb99c1fecff)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: DT node clean up by using the of_node_put()

Driver needs to call of_node_put() after of_get_chile_by_name()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit f451e48d8e1cae07d55b4a5b558c008cd4dc9a73)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: Fix warnings due to improper printk formats

Use the %pap printk specifier to print resource_size_t variables. This
fixes warnings on platforms where resource_size_t has a different size
than int.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit e6b0d896ab0597d37422cae3cef3e789431549eb)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: add DVC support

This patch adds DVC (Digital Volume Controller)
support which is member of CMD unit.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit bff58ea4f43d9b4a9fd6fb05fabc8f50f68131f5)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: enable to use multi parameter on rsnd_dai_call/rsnd_mod_call

rsnd_mod_ops would like to come to use multi parameter.
modify macro to enable it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 68b6af3656a1f3303cca094a19e26653fad1853a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: remove duplicate parameter from rsnd_mod_ops

Now, it can get rsnd_dai_stream pointer from rsnd_mod.
Remove duplicate parameter from rsnd_mod_ops

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit b42fccf69cd7153d1158c85137ec718d7309e074)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: add rsnd_get_adinr()

SRC module needs ADINR register settings,
but, it has many similar xxx_ADINR register,
and needs same settings.
This patch adds rsnd_get_adinr() to sharing code.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit d7bdbc5d9e4e813522f46632527826211270b9d0)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: add rsnd_path_parse() macro

Current R-Car sound supports only SRC/SSI,
but, other module will be supported.
This patch adds rsnd_path_parse() macro to share code

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 739f9502fdd7c7202123ded842415a0392b7dc40)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: remove compatibility code

Now, all platform is using new style rsnd_dai_platform_info.
Keeping compatibility is no longer needed.
We can cleanup code.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 29e69fd2cd6f55233f64f600ad55ce2b661784d1)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: rsnd: remove old clock style support

All platform which used old style was
switched to new style.
R-Car sound can remove old style clock support,
use device dependent clock now.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 5e392ea0da04d4206d56ec1479565fb42a044b57)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ASoC: sh: Migo-R sound needs I2C

The WM8978 driver needs I2C to be enabled, so the
SND_SIU_MIGOR option also requires this.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Xia Kaixu <kaixu.xia@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 7b6ad9e85bad73bac3ce799864e0e3a66a0469e2)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791: Fix SD2CKCR register address

59e79895b95892863617ce630fbda467f2470575
(ARM: shmobile: r8a7791: Add clocks)
added r8a7791 SD clocks when v3.14.

2c60a7df72711fb8b4be1e6aa651ab166a8931bc
(ARM: shmobile: Add SDHI devices for Koelsch DTS)
enabled SD on r8a7791 Koelsch when v3.15.

1299df03d7191ab4356c995dde8b912d3c8922e9
(ARM: shmobile: henninger: add SDHI0/2 DT support)
enable SD on r8a7791 Henninger when v3.16.

But r8a7791 SD clock had wrong address.
This patch fixup it.

[Kuninori Morimoto: tidyup for upstreaming]

Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit c9b227723d051184b9e78f20c75ae2f9d44a6ea2)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: kconfig: allow PCI support to be selected with ARCH_MULTIPLATFORM

When targetting ARCH_MULTIPLATFORM, we may include support for SoCs with
PCI-capable devices (e.g. mach-virt with virtio-pci).

This patch allows PCI support to be selected for these SoCs by selecting
CONFIG_MIGHT_HAVE_PCI when CONFIG_ARCH_MULTIPLATFORM=y and removes the
individual selections from multi-platform enabled SoCs.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
(cherry picked from commit 08d38bebb4dcd6414944f8277ea5ea30010664fe)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
arch/arm/mach-bcm/Kconfig
arch/arm/mach-cns3xxx/Kconfig
arch/arm/mach-imx/Kconfig

ARM: shmobile: armadillo800eva: fixup HDMI sound flags setting

c7a507eea1db1430476289f525f9c853d5d485e8
(ASoC: fsi: fixup SND_SOC_DAIFMT_CBx_CFx flags)
fixuped FSI driver's behavior
which didn't match to ALSA flags.

But, it didn't care about armadillo800eva HDMI sound flags.
This patch fixed it.

Reported-by: Bui Duc Phuc(Fukuda) <bd-phuc@jinso.co.jp>
Reported-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 730359857f5f0e1fac9881c63d389d73adb5f416)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7779: Add clock index macros for DT sources

Add macros usable by device tree sources to reference r8a7779 clocks by
index.

Based on work for the r8a7791 SoC by Laurent Pinchart.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
(cherry picked from commit b59e869674f5b6779c65ddb13cf799cd01c07072)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

USB: delete CONFIG_USB_DEVICEFS from defconfig

It no longer occurs in Kconfig.
USB: remove CONFIG_USB_DEVICEFS(fb28d58b) leaked remove defconfig.

Signed-off-by: Naoki MATSUMOTO <nekomatu+linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 3a0d89d3f80df15fee3802e030d51f1848269a01)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove Genmai reference DTS

Now that the DTS file r7s72100-genmai.dts can be used with
board-genmai.c and board-genmai-reference.c, proceed with removing
r7s72100-genmai-reference.dts.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit a5176e0d9de31a54e08468f21c15dc08e006857f)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Let Genmai multiplatform boot with Genmai DTB

Let the multiplatform Genmai support boot with the unified DTS.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 23f679fa6de3b3f7e1d9e1d8eaeafa5167a55a17)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
arch/arm/boot/dts/Makefile

ARM: shmobile: Sync Genmai DTS with Genmai reference DTS

Copy the device nodes from Genmai reference into the Genmai device tree
file. This will allow us to use a single DTS file regardless of kernel
configuration. In case of legacy C board code the device nodes may or
may not be used, but in the multiplatform case all the DT device nodes
will be used.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 2606f47be55fd4545ed9236467682c636fd23f9d)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: genmai-reference: Remove legacy clock support

genmai-reference is now only built for multiplatform which means that
CCF comes with the package. Remove unused legacy code ifdefs to clean up
the code.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 88351216f595786a24ff6cb7df7b101811981c78)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove non-multiplatform Genmai reference support

Now that r7s72100 has CCF support, remove the legacy Genmai reference
Kconfig bits for the non-multiplatform case.

Starting from this commit Genmai board support is always enabled via
CONFIG_MACH_GENMAI, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-genmai.c and board-genmai-reference.c

The file board-genmai-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 551f80a5c915c4615cd4065ad4db5cf68f765b97)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
arch/arm/boot/dts/Makefile

ARM: shmobile: r8a7740 dtsi: Remove duplicate interrupt-parent property

Caused by interaction between commit
08ec67b50db7ca8c9077e67ca23850cdc5bfc716 ("ARM: shmobile: r8a7740 dtsi:
Add Ethernet support") and commit 9ff254adc1e32db46000a33b8ecbc4d7047672be
("ARM: shmobile: dts: Move interrupt-parent property to root node").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 3fa3985e624aea24334abc9a33b484c3d316e64e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Set clock frequency in HZ from OF nodes

shmobile_init_delay() looks for OF "clock-frequency" to determine
the delay which is set by calling shmobile_setup_delay().

Unfortunately this seems to be incorrect in detail as
"clock-frequency" node values are in HZ whereas the frequency
argument to shmobile_setup_delay() is in MHz.

Provide a variant of shmobile_setup_delay() that accepts HZ to
correct this problem.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit f492b81777c93b33afe892b424e022022b5bc297)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: use workaround for non DT-clocks

MTU2 is not yet prepared for DT usage, so use the common workaround via
clkdev for now.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 9fbb1ae01b878e2cce9626fa6fdc9e5dcefeb6b5)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Add forward declaration of struct clk to silence warning

arch/arm/mach-shmobile/board-genmai-reference.c:23:0:
arch/arm/mach-shmobile/include/mach/clock.h:19:54: warning: 'struct clk' declared inside parameter list [enabled by default]
arch/arm/mach-shmobile/include/mach/clock.h:19:54: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 1f9c7a691fefc2158bed4d5403422cc9b99ca335)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: remove SPI DT clocks from legacy clock support

Not used anymore since we switched to CCF.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 3158e053ff45ed36d531d775cf0040642b91b606)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: add spi clocks to dtsi

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 52eed4f5c267bd50d870f9c63d0a83d6f83d8bab)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: remove I2C DT clocks from legacy clock support

Not used anymore since we switched to CCF.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 316b9353784386aedc4f2643dfdfda30da268b0b)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: add i2c clocks to dtsi

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit d165566b8dc425e52a4f2c19c27c63d9807128b2)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: genmai: platform scif devices only for legacy support

We have now DT support for SCIF, so use the platform_device
initialization only for the legacy support.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit d45b21c9021d7de7941b00f0902a9401fb32a3d9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: genmai: add uart alias and activate scif2 as console

We keep the UART naming backwards compatible with the legacy version.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 5be13fefdb83c15ed69eb032dfe011162d1a5269)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: add scif nodes to dtsi

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 4c84c1b3accabdfb7aa8e98a4644c94df0703bb0)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: genmai: populate nodes for external clocks

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 5f76a5699f52052468e006e6c58010c5183b8386)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: add essential clock nodes to dtsi

Only essential clocks are added for now. Other clocks will be added when
needed.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit b6face404f38f783c4428d953efa4eeb68d7cc24)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: koelsch: Enable SCIF0 and SCIF1 serial ports in DT

SCIF0 and SCIF1 are used as debug serial ports. Enable them and
configure pinmuxing appropriately. We can now remove the clkdev
registration hack for SCIF devices from the Koelsch reference board
file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: added aliases to avoid device renumbering]
[horms+renesas@verge.net.au: resolved conflicts]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 5ba55fa81aee9493928c245f142a0bfe9f32d02f)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: lager: Enable SCIF0 and SCIF1 serial ports in DT

SCIF0 and SCIF1 are used as debug serial ports. Enable them and
configure pinmuxing appropriately. We can now remove the clkdev
registration hack for SCIF devices from the Lager reference board file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: updated changelog to remove references to
device renaming]
[horms+renesas@verge.net.au: resolved conflicts]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 4e9c4877aacc134b568e480eb8998de58b43d63e)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Conflicts:
arch/arm/boot/dts/r8a7790-lager.dts