diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_display.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_display.c | 47 |
1 files changed, 31 insertions, 16 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 3898850739ab..bbc47d86ae9e 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -11,6 +11,7 @@ #include <linux/of_irq.h> #include <linux/phy/phy.h> #include <linux/delay.h> +#include <linux/string_choices.h> #include <drm/display/drm_dp_aux_bus.h> #include <drm/drm_edid.h> @@ -343,8 +344,7 @@ static int msm_dp_display_send_hpd_notification(struct msm_dp_display_private *d { if ((hpd && dp->msm_dp_display.link_ready) || (!hpd && !dp->msm_dp_display.link_ready)) { - drm_dbg_dp(dp->drm_dev, "HPD already %s\n", - (hpd ? "on" : "off")); + drm_dbg_dp(dp->drm_dev, "HPD already %s\n", str_on_off(hpd)); return 0; } @@ -367,6 +367,19 @@ static int msm_dp_display_send_hpd_notification(struct msm_dp_display_private *d return 0; } +static void msm_dp_display_lttpr_init(struct msm_dp_display_private *dp) +{ + u8 lttpr_caps[DP_LTTPR_COMMON_CAP_SIZE]; + int rc; + + if (drm_dp_read_lttpr_common_caps(dp->aux, dp->panel->dpcd, lttpr_caps)) + return; + + rc = drm_dp_lttpr_init(dp->aux, drm_dp_lttpr_count(lttpr_caps)); + if (rc) + DRM_ERROR("failed to set LTTPRs transparency mode, rc=%d\n", rc); +} + static int msm_dp_display_process_hpd_high(struct msm_dp_display_private *dp) { struct drm_connector *connector = dp->msm_dp_display.connector; @@ -377,6 +390,8 @@ static int msm_dp_display_process_hpd_high(struct msm_dp_display_private *dp) if (rc) goto end; + msm_dp_display_lttpr_init(dp); + msm_dp_link_process_request(dp->link); if (!dp->msm_dp_display.is_edp) @@ -1492,13 +1507,13 @@ int msm_dp_modeset_init(struct msm_dp *msm_dp_display, struct drm_device *dev, } void msm_dp_bridge_atomic_enable(struct drm_bridge *drm_bridge, - struct drm_bridge_state *old_bridge_state) + struct drm_atomic_state *state) { struct msm_dp_bridge *msm_dp_bridge = to_dp_bridge(drm_bridge); struct msm_dp *dp = msm_dp_bridge->msm_dp_display; int rc = 0; struct msm_dp_display_private *msm_dp_display; - u32 state; + u32 hpd_state; bool force_link_train = false; msm_dp_display = container_of(dp, struct msm_dp_display_private, msm_dp_display); @@ -1517,8 +1532,8 @@ void msm_dp_bridge_atomic_enable(struct drm_bridge *drm_bridge, return; } - state = msm_dp_display->hpd_state; - if (state != ST_DISPLAY_OFF && state != ST_MAINLINK_READY) { + hpd_state = msm_dp_display->hpd_state; + if (hpd_state != ST_DISPLAY_OFF && hpd_state != ST_MAINLINK_READY) { mutex_unlock(&msm_dp_display->event_mutex); return; } @@ -1530,9 +1545,9 @@ void msm_dp_bridge_atomic_enable(struct drm_bridge *drm_bridge, return; } - state = msm_dp_display->hpd_state; + hpd_state = msm_dp_display->hpd_state; - if (state == ST_DISPLAY_OFF) { + if (hpd_state == ST_DISPLAY_OFF) { msm_dp_display_host_phy_init(msm_dp_display); force_link_train = true; } @@ -1553,7 +1568,7 @@ void msm_dp_bridge_atomic_enable(struct drm_bridge *drm_bridge, } void msm_dp_bridge_atomic_disable(struct drm_bridge *drm_bridge, - struct drm_bridge_state *old_bridge_state) + struct drm_atomic_state *state) { struct msm_dp_bridge *msm_dp_bridge = to_dp_bridge(drm_bridge); struct msm_dp *dp = msm_dp_bridge->msm_dp_display; @@ -1565,11 +1580,11 @@ void msm_dp_bridge_atomic_disable(struct drm_bridge *drm_bridge, } void msm_dp_bridge_atomic_post_disable(struct drm_bridge *drm_bridge, - struct drm_bridge_state *old_bridge_state) + struct drm_atomic_state *state) { struct msm_dp_bridge *msm_dp_bridge = to_dp_bridge(drm_bridge); struct msm_dp *dp = msm_dp_bridge->msm_dp_display; - u32 state; + u32 hpd_state; struct msm_dp_display_private *msm_dp_display; msm_dp_display = container_of(dp, struct msm_dp_display_private, msm_dp_display); @@ -1579,15 +1594,15 @@ void msm_dp_bridge_atomic_post_disable(struct drm_bridge *drm_bridge, mutex_lock(&msm_dp_display->event_mutex); - state = msm_dp_display->hpd_state; - if (state != ST_DISCONNECT_PENDING && state != ST_CONNECTED) + hpd_state = msm_dp_display->hpd_state; + if (hpd_state != ST_DISCONNECT_PENDING && hpd_state != ST_CONNECTED) drm_dbg_dp(dp->drm_dev, "type=%d wrong hpd_state=%d\n", - dp->connector_type, state); + dp->connector_type, hpd_state); msm_dp_display_disable(msm_dp_display); - state = msm_dp_display->hpd_state; - if (state == ST_DISCONNECT_PENDING) { + hpd_state = msm_dp_display->hpd_state; + if (hpd_state == ST_DISCONNECT_PENDING) { /* completed disconnection */ msm_dp_display->hpd_state = ST_DISCONNECTED; } else { |