LTSI-v4.14 Preparation for Renesas SoCs (to v4.17)

Base:
* v4.14.57
* Similar backport of components for Renesas SoCs to v4.16

Backports of the following components to their standard as of v4.17:
* at24
* cpg
* dw-hdmi
* gen3 (Renesas ARM64 based SoCs)
* gpio-em
* gpio-keys
* gpio-rcar
* gpio-regulator
* i2c-rcar
* i2c-sh-mobile
* ipmmu-vmsa
* irq-gic
* irq-renesas-intc-irqpin
* irq-renesas-irqc
* mach-shmobile (Renesas ARM based SoCs)
* pci-rcar-gen2
* pcie-rcar
* phy-micrel
* phy-rcar-gen3-usb2
* pwm-rcar
* pwm-renesas-tpu
* ravb
* rcar-canfd
* rcar-dmac
* rcar-du
* rcar-rst
* rcar-snd
* rcar-vin
* renesas-ceu
* renesas-sdhi
* renesas-soc-id
* rspi
* sh-eth
* sh-mmcif
* sh-msiof
* sh-pfc
* sh-sci
* sysc
* vsp1
* watchdog
* wm8978
* xhci-plat

Selected backports of the following to provide dependencies for the above:
* drm-tilcdc-compat
* of-overlay
media: renesas-ceu: mark PM functions as __maybe_unused

The PM runtime operations are unused when CONFIG_PM is disabled,
leading to a harmless warning:

drivers/media/platform/renesas-ceu.c:1003:12: error: 'ceu_runtime_suspend' defined but not used [-Werror=unused-function]
 static int ceu_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~
drivers/media/platform/renesas-ceu.c:987:12: error: 'ceu_runtime_resume' defined but not used [-Werror=unused-function]
 static int ceu_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~

This adds a __maybe_unused annotation to shut up the warning.

Fixes: 32e5a70dc8f4 ("media: platform: Add Renesas CEU driver")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
(cherry picked from commit 997ef6b2627c54f5404c2f444e52c7140d1b6d01)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
1 file changed