Add support for runtime PM to the Rockchip RK3576/3588 Synopsys DesignWare DisplayPort driver.
Signed-off-by: Sebastian Reichel <[email protected]> --- drivers/gpu/drm/rockchip/dw_dp-rockchip.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/gpu/drm/rockchip/dw_dp-rockchip.c b/drivers/gpu/drm/rockchip/dw_dp-rockchip.c index ffcfb887d0d2..770ab042a187 100644 --- a/drivers/gpu/drm/rockchip/dw_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_dp-rockchip.c @@ -12,6 +12,7 @@ #include <linux/mfd/syscon.h> #include <linux/of_device.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/videodev2.h> @@ -231,6 +232,7 @@ static int dw_dp_rockchip_probe(struct platform_device *pdev) if (IS_ERR(dp->vo_grf)) return PTR_ERR(dp->vo_grf); + plat_data->autosuspend_delay = 500; plat_data->max_link_rate = plat_data_const->max_link_rate; plat_data->pixel_mode = plat_data_const->pixel_mode; plat_data->hpd_sw_sel = dw_dp_rockchip_hpd_sw_sel; @@ -253,6 +255,24 @@ static void dw_dp_rockchip_remove(struct platform_device *pdev) component_del(&pdev->dev, &dw_dp_rockchip_component_ops); } +static int dw_dp_rockchip_runtime_suspend(struct device *dev) +{ + struct rockchip_dw_dp *dp = dev_get_drvdata(dev); + + return dw_dp_runtime_suspend(dp->base); +} + +static int dw_dp_rockchip_runtime_resume(struct device *dev) +{ + struct rockchip_dw_dp *dp = dev_get_drvdata(dev); + + return dw_dp_runtime_resume(dp->base); +} + +static const struct dev_pm_ops dw_dp_pm_ops = { + RUNTIME_PM_OPS(dw_dp_rockchip_runtime_suspend, dw_dp_rockchip_runtime_resume, NULL) +}; + static const struct rockchip_dw_dp_plat_data rk3588_dp_plat_data = { .num_ctrls = 2, .ctrl_ids = {0xfde50000, 0xfde60000}, @@ -287,5 +307,6 @@ struct platform_driver dw_dp_driver = { .driver = { .name = "dw-dp", .of_match_table = dw_dp_of_match, + .pm = pm_ptr(&dw_dp_pm_ops), }, }; -- 2.53.0
