diff options
| author | Konrad Dybcio <konrad.dybcio@linaro.org> | 2023-06-20 14:43:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-05 23:13:02 +0300 |
| commit | 98c392a91a6e9e75cf9ac86be7faa6923d2656a5 (patch) | |
| tree | 50796a79c69d4101d626f399910360edd640e765 | |
| parent | befdb0a8a1955896fb6a7a85a0d7884a864db7db (diff) | |
| download | linux-98c392a91a6e9e75cf9ac86be7faa6923d2656a5.tar.xz | |
drm/msm/dsi: Enable runtime PM
commit 6ab502bc1cf3147ea1d8540d04b83a7a4cb6d1f1 upstream.
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>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c index 62bc3756f2e2..c0bcf020ef66 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -673,6 +673,10 @@ static int dsi_phy_driver_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(phy->ahb_clk), "Unable to get ahb clk\n"); + 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. */ |