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OMAP: DSS2: DSI Video mode support

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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>
This commit is contained in:
Archit Taneja
2011-09-05 16:48:27 +05:30
committed by Tomi Valkeinen
parent 18b7d09908
commit 8af6ff0107
2 changed files with 263 additions and 29 deletions
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include/video/omapdss.h
+32
View File
@@ -228,6 +228,35 @@ void rfbi_bus_lock(void);
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 @@ int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
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 @@ struct omap_dss_device {
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 {