Alway enable the PSR function for Rockchip analogix_dp driver. If panel don't support PSR, then the core analogix_dp would ignore this setting.
Signed-off-by: Yakir Yang ykk@rock-chips.com --- Changes in v3: - split the common psr logic into a seperate driver, make this to a simple sub-psr device driver.
Changes in v2: - remove vblank notify out (Daniel) - create a psr_active() callback in vop data struct.
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 52 +++++++++++++++++++++++++ 1 file changed, 52 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index e81e19a..80a60a6 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -32,6 +32,7 @@ #include <drm/bridge/analogix_dp.h>
#include "rockchip_drm_drv.h" +#include "rockchip_drm_psr.h" #include "rockchip_drm_vop.h"
#define RK3288_GRF_SOC_CON6 0x25c @@ -68,11 +69,53 @@ struct rockchip_dp_device { struct regmap *grf; struct reset_control *rst;
+ struct delayed_work psr_work; + unsigned int psr_state; + const struct rockchip_dp_chip_data *data;
struct analogix_dp_plat_data plat_data; };
+static int analogix_dp_psr_set(struct drm_encoder *encoder, bool enabled) +{ + struct rockchip_dp_device *dp = to_dp(encoder); + + dev_dbg(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit"); + + if (enabled) + dp->psr_state = EDP_VSC_PSR_STATE_ACTIVE; + else + dp->psr_state = ~EDP_VSC_PSR_STATE_ACTIVE; + + schedule_delayed_work(&dp->psr_work, msecs_to_jiffies(10)); + + return 0; +} + +static void analogix_dp_psr_work(struct work_struct *work) +{ + struct rockchip_dp_device *dp = + container_of(work, typeof(*dp), psr_work.work); + struct drm_crtc *crtc = dp->encoder.crtc; + int psr_state = dp->psr_state; + int vact_end; + int ret; + + if (!crtc) + return; + + vact_end = crtc->mode.vtotal - crtc->mode.vsync_start + crtc->mode.vdisplay; + + ret = rockchip_drm_wait_line_flag(dp->encoder.crtc, vact_end, 100); + if (ret == 0) { + if (psr_state == EDP_VSC_PSR_STATE_ACTIVE) + analogix_dp_active_psr(dp->dev); + else + analogix_dp_inactive_psr(dp->dev); + } +} + static int rockchip_dp_pre_init(struct rockchip_dp_device *dp) { reset_control_assert(dp->rst); @@ -340,12 +383,21 @@ static int rockchip_dp_bind(struct device *dev, struct device *master, dp->plat_data.power_off = rockchip_dp_powerdown; dp->plat_data.get_modes = rockchip_dp_get_modes;
+ dp->psr_state = ~EDP_VSC_PSR_STATE_ACTIVE; + INIT_DELAYED_WORK(&dp->psr_work, analogix_dp_psr_work); + + rockchip_drm_psr_register(&dp->encoder, analogix_dp_psr_set); + return analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data); }
static void rockchip_dp_unbind(struct device *dev, struct device *master, void *data) { + struct rockchip_dp_device *dp = dev_get_drvdata(dev); + + rockchip_drm_psr_unregister(&dp->encoder); + return analogix_dp_unbind(dev, master, data); }