OMAP: DSS2: DSI Video mode support
Add initial support for DSI video mode panels:
- Add a new structure omap_dss_dsi_videomode_data in the member "panel" in
omap_dss_device struct. This allows panel driver to configure dsi video_mode
specific parameters.
- Configure basic DSI video mode timing parameters: HBP, HFP, HSA, VBP, VFP, VSA,
TL and VACT.
- Configure DSI protocol engine registers for video_mode support.
- Introduce functions dsi_video_mode_enable() and dsi_video_mode_disable() which
enable/disable video mode for a given virtual channel and a given pixel format
type.
Things left for later
- Add functions to check for errors in video mode timings provided by panel.
- Configure timing registers required for command mode interleaving.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 89a9c29..44f423f 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -228,6 +228,35 @@
void rfbi_bus_unlock(void);
/* DSI */
+
+struct omap_dss_dsi_videomode_data {
+ /* DSI video mode blanking data */
+ /* Unit: byte clock cycles */
+ u16 hsa;
+ u16 hfp;
+ u16 hbp;
+ /* Unit: line clocks */
+ u16 vsa;
+ u16 vfp;
+ u16 vbp;
+
+ /* DSI blanking modes */
+ int blanking_mode;
+ int hsa_blanking_mode;
+ int hbp_blanking_mode;
+ int hfp_blanking_mode;
+
+ /* Video port sync events */
+ int vp_de_pol;
+ int vp_hsync_pol;
+ int vp_vsync_pol;
+ bool vp_vsync_end;
+ bool vp_hsync_end;
+
+ bool ddr_clk_always_on;
+ int window_sync;
+};
+
void dsi_bus_lock(struct omap_dss_device *dssdev);
void dsi_bus_unlock(struct omap_dss_device *dssdev);
int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
@@ -258,6 +287,8 @@
u16 len);
int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel);
int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel);
+int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel);
+void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel);
/* Board specific data */
struct omap_dss_board_info {
@@ -505,6 +536,7 @@
enum omap_dss_dsi_pixel_format dsi_pix_fmt;
enum omap_dss_dsi_mode dsi_mode;
+ struct omap_dss_dsi_videomode_data dsi_vm_data;
} panel;
struct {