drm: renesas: shmobile: Add support for Runtime PM

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The SH-Mobile LCD Controller is part of a PM Domain on all relevant SoCs
(clock domain on all, power domain on some).  Hence it may not be
sufficient to manage the LCDC module clock explicitly (e.g. if the
selected clock source differs from SHMOB_DRM_CLK_BUS).

Fix this by using Runtime PM for all clock handling.  Add an explicit
dependency on CONFIG_PM, which should already be met on all affected
platforms.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/e7359a64963bd9a4f1531c2beae850774ce140bc.1694767209.git.geert+renesas@glider.be

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This commit is contained in:

Geert Uytterhoeven 2023-09-15 10:53:22 +02:00

parent b25064ef99

commit 616f73c9d3

3 changed files with 40 additions and 32 deletions

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2

drivers/gpu/drm/renesas/shmobile/Kconfig

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32

drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c

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38

drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c

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