@@ -1727,6 +1727,7 @@ void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
void intel_panel_destroy_backlight(struct drm_connector *connector);
+void intel_panel_set_orientation(struct intel_panel *panel, int orientation);
enum drm_connector_status intel_panel_detect(struct drm_i915_private *dev_priv);
extern struct drm_display_mode *intel_find_panel_downclock(
struct drm_i915_private *dev_priv,
@@ -1084,13 +1084,16 @@ static void bxt_dsi_get_pipe_config(struct intel_encoder *encoder,
struct drm_display_mode *adjusted_mode_sw;
struct intel_crtc *intel_crtc;
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
+ struct intel_panel *panel = &intel_dsi->attached_connector->panel;
unsigned int lane_count = intel_dsi->lane_count;
unsigned int bpp, fmt;
+ int orientation;
enum port port;
u16 hactive, hfp, hsync, hbp, vfp, vsync, vbp;
u16 hfp_sw, hsync_sw, hbp_sw;
u16 crtc_htotal_sw, crtc_hsync_start_sw, crtc_hsync_end_sw,
crtc_hblank_start_sw, crtc_hblank_end_sw;
+ u32 val;
/* FIXME: hw readout should not depend on SW state */
intel_crtc = to_intel_crtc(encoder->base.crtc);
@@ -1234,6 +1237,49 @@ static void bxt_dsi_get_pipe_config(struct intel_encoder *encoder,
if (adjusted_mode->crtc_hblank_end == crtc_hblank_end_sw)
adjusted_mode->crtc_hblank_end =
adjusted_mode_sw->crtc_hblank_end;
+
+ if (!intel_dsi->got_panel_orientation) {
+ val = I915_READ(PLANE_CTL(intel_crtc->pipe, 0));
+ /* The rotation is used to correct for the panel orientation */
+ switch (val & PLANE_CTL_ROTATE_MASK) {
+ case PLANE_CTL_ROTATE_0:
+ orientation = DRM_MODE_PANEL_ORIENTATION_NORMAL;
+ break;
+ case PLANE_CTL_ROTATE_90:
+ orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP;
+ break;
+ case PLANE_CTL_ROTATE_180:
+ orientation = DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP;
+ break;
+ case PLANE_CTL_ROTATE_270:
+ orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP;
+ break;
+ }
+ intel_panel_set_orientation(panel, orientation);
+ intel_dsi->got_panel_orientation = true;
+ }
+}
+
+static void vlv_dsi_get_pipe_config(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
+ struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
+ struct intel_panel *panel = &intel_dsi->attached_connector->panel;
+ int orientation;
+ u32 val;
+
+ if (!intel_dsi->got_panel_orientation) {
+ val = I915_READ(DSPCNTR(intel_crtc->plane));
+
+ if (val & DISPPLANE_ROTATE_180)
+ orientation = DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP;
+ else
+ orientation = DRM_MODE_PANEL_ORIENTATION_NORMAL;
+
+ intel_panel_set_orientation(panel, orientation);
+ intel_dsi->got_panel_orientation = true;
+ }
}
static void intel_dsi_get_config(struct intel_encoder *encoder,
@@ -1245,6 +1291,8 @@ static void intel_dsi_get_config(struct intel_encoder *encoder,
if (IS_GEN9_LP(dev_priv))
bxt_dsi_get_pipe_config(encoder, pipe_config);
+ else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+ vlv_dsi_get_pipe_config(encoder);
pclk = intel_dsi_get_pclk(encoder, pipe_config->pipe_bpp,
pipe_config);
@@ -52,6 +52,8 @@ struct intel_dsi {
/* if true, use HS mode, otherwise LP */
bool hs;
+ bool got_panel_orientation;
+
/* virtual channel */
int channel;
@@ -1845,6 +1845,22 @@ void intel_panel_destroy_backlight(struct drm_connector *connector)
panel->backlight.present = false;
}
+void intel_panel_set_orientation(struct intel_panel *panel, int orientation)
+{
+ struct intel_connector *panel_conn;
+ int width = 0, height = 0;
+
+ if (panel->fixed_mode) {
+ width = panel->fixed_mode->hdisplay;
+ height = panel->fixed_mode->vdisplay;
+ }
+
+ panel_conn = container_of(panel, struct intel_connector, panel);
+ panel_conn->base.display_info.panel_orientation = orientation;
+ drm_connector_init_panel_orientation_property(&panel_conn->base,
+ width, height);
+}
+
/* Set up chip specific backlight functions */
static void
intel_panel_init_backlight_funcs(struct intel_panel *panel)
Ideally we could use the VBT for this, that would be simple, in intel_dsi_init() check dev_priv->vbt.dsi.config->rotation, set connector->display_info.panel_orientation accordingly and call drm_connector_init_panel_orientation_property(), done. Unfortunately vbt.dsi.config->rotation is always 0 even on tablets with an upside down LCD and where the GOP is properly rotating the EFI fb in hardware. So instead we end up reading the rotation from the primary plane. To read the info from the primary plane, we need to know which crtc the panel is hooked up to, so we do this the first time the panel encoder's get_config function get called, as by then the encoder crtc routing has been set up. This commit only implements the panel orientation property for DSI panels on BYT / CHT / BXT hardware, as all known non normal oriented panels are only found on this hardware. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- Changes in v2: -Read back the rotation applied by the GOP from the primary plane instead of relying on dev_priv->vbt.dsi.config->rotation, because it seems that the VBT rotation filed is always 0 even on devices where the GOP does apply a rotation Changes in v3: -Rewrite the code to read back the orientation from the primary plane to contain all of this in intel_dsi.c instead of poking a bunch of holes between all the different layers --- drivers/gpu/drm/i915/intel_drv.h | 1 + drivers/gpu/drm/i915/intel_dsi.c | 48 ++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_dsi.h | 2 ++ drivers/gpu/drm/i915/intel_panel.c | 16 +++++++++++++ 4 files changed, 67 insertions(+)