Implement the .set_crc_source() callback and call the DP helpers accordingly to start and stop CRC capture.
This is only done if this CRTC is currently using the eDP connector.
Signed-off-by: Tomeu Vizoso tomeu.vizoso@collabora.com ---
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 48 +++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 91305eb7d312..25f2e7b72982 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -18,6 +18,7 @@ #include <drm/drm_crtc.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_plane_helper.h> +#include <drm/bridge/analogix_dp.h>
#include <linux/kernel.h> #include <linux/module.h> @@ -1084,6 +1085,52 @@ static void vop_crtc_destroy_state(struct drm_crtc *crtc, kfree(s); }
+static struct drm_connector *vop_get_edp_connector(struct vop *vop) +{ + struct drm_crtc *crtc = &vop->crtc; + struct drm_connector *connector; + + mutex_lock(&crtc->dev->mode_config.mutex); + drm_for_each_connector(connector, crtc->dev) + if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + mutex_unlock(&crtc->dev->mode_config.mutex); + return connector; + } + mutex_unlock(&crtc->dev->mode_config.mutex); + + return NULL; +} + +static int vop_crtc_set_crc_source(struct drm_crtc *crtc, + const char *source_name, size_t *values_cnt) +{ + struct vop *vop = to_vop(crtc); + struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state); + struct drm_connector *connector; + int ret; + + connector = vop_get_edp_connector(vop); + if (!connector) + return -EINVAL; + + *values_cnt = 3; + + if (source_name && + strcmp(source_name, "auto") == 0) { + + if (s->output_type != DRM_MODE_CONNECTOR_eDP) + return -EINVAL; + + ret = analogix_dp_start_crc(connector); + } else if (!source_name) + + ret = analogix_dp_stop_crc(connector); + else + ret = -EINVAL; + + return ret; +} + static const struct drm_crtc_funcs vop_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, @@ -1091,6 +1138,7 @@ static const struct drm_crtc_funcs vop_crtc_funcs = { .reset = vop_crtc_reset, .atomic_duplicate_state = vop_crtc_duplicate_state, .atomic_destroy_state = vop_crtc_destroy_state, + .set_crc_source = vop_crtc_set_crc_source, };
static bool vop_win_pending_is_complete(struct vop_win *vop_win)