[ Upstream commit 6ab502bc1cf3147ea1d8540d04b83a7a4cb6d1f1 ]
Some devices power the DSI PHY/PLL through a power rail that we model
as a GENPD. Enable runtime PM to make it suspendable.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/543352/
Link: https://lore.kernel.org/r/20230620-topic-dsiphy_rpm-v2-2-a11a751f34f0@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Stable-dep-of: 3d07a411b4fa ("drm/msm/dsi: Use pm_runtime_resume_and_get to prevent refcnt leaks")
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 3d07a411b4faaf2b498760ccf12888f8de529de0 ]
This helper has been introduced to avoid programmer errors (missing
_put calls leading to dangling refcnt) when using pm_runtime_get, use it.
While at it, start checking the return value.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: 5c8290284402 ("drm/msm/dsi: Split PHY drivers to separate files")
Patchwork: https://patchwork.freedesktop.org/patch/543350/
Link: https://lore.kernel.org/r/20230620-topic-dsiphy_rpm-v2-1-a11a751f34f0@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
