5.4-stable review patch. If anyone has any objections, please let me know.
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From: Konrad Dybcio konrad.dybcio@linaro.org
[ 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... 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 --- drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -606,6 +606,10 @@ static int dsi_phy_driver_probe(struct p goto fail; }
+ ret = devm_pm_runtime_enable(&pdev->dev); + if (ret) + return ret; + /* PLL init will call into clk_register which requires * register access, so we need to enable power and ahb clock. */