Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 08:31:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

OMAPDSS: DSI: call mgr_enable/disable for cmd mode displays

Browse Source 
The current code uses dsi_video_mode_enable/disable functions to
enable/disable DISPC output for video mode displays. For command mode
displays we have no notion in the DISPC side of whether the panel is
enabled, except when a dss_mgr_start_update() call is made.

However, to properly maintain the DISPC state in apply.c, we need to
know if a manager used for a manual update display is currently in use.

This patch achieves that by changing dsi_video_mode_enable/disable to
dsi_enable/disable_video_output, which is called by both video and
command mode displays. For video mode displays it starts the actual
pixel stream, as it did before. For command mode displays it doesn't do
anything else than mark that the manager is currently in use.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2011-11-09 15:30:11 +02:00
parent e0a2aa5b3d
commit 9a147a65de
4 changed files with 51 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/video/omap2/displays/panel-taal.c
View File

@ -1182,6 +1182,10 @@ static int taal_power_on(struct omap_dss_device *dssdev)
if (r)
goto err;
r = dsi_enable_video_output(dssdev, td->channel);
if (r)
goto err;
td->enabled = 1;
if (!td->intro_printed) {
@ -1211,6 +1215,8 @@ static void taal_power_off(struct omap_dss_device *dssdev)
struct taal_data *td = dev_get_drvdata(&dssdev->dev);
int r;
dsi_disable_video_output(dssdev, td->channel);
r = taal_dcs_write_0(td, MIPI_DCS_SET_DISPLAY_OFF);
if (!r)
r = taal_sleep_in(td);

6
drivers/video/omap2/dss/apply.c
View File

@ -648,7 +648,8 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
{
mutex_lock(&apply_lock);
dispc_mgr_enable(mgr->id, true);
if (!mgr_manual_update(mgr))
dispc_mgr_enable(mgr->id, true);
mgr->enabled = true;
mutex_unlock(&apply_lock);
@ -658,7 +659,8 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
{
mutex_lock(&apply_lock);
dispc_mgr_enable(mgr->id, false);
if (!mgr_manual_update(mgr))
dispc_mgr_enable(mgr->id, false);
mgr->enabled = false;
mutex_unlock(&apply_lock);

73
drivers/video/omap2/dss/dsi.c
View File

@ -3973,65 +3973,70 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
}
}
int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel)
int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
u8 data_type;
u16 word_count;
switch (dssdev->panel.dsi_pix_fmt) {
case OMAP_DSS_DSI_FMT_RGB888:
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
break;
case OMAP_DSS_DSI_FMT_RGB666:
data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
break;
case OMAP_DSS_DSI_FMT_RGB666_PACKED:
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
break;
case OMAP_DSS_DSI_FMT_RGB565:
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
break;
default:
BUG();
};
if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
switch (dssdev->panel.dsi_pix_fmt) {
case OMAP_DSS_DSI_FMT_RGB888:
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
break;
case OMAP_DSS_DSI_FMT_RGB666:
data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
break;
case OMAP_DSS_DSI_FMT_RGB666_PACKED:
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
break;
case OMAP_DSS_DSI_FMT_RGB565:
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
break;
default:
BUG();
};
dsi_if_enable(dsidev, false);
dsi_vc_enable(dsidev, channel, false);
dsi_if_enable(dsidev, false);
dsi_vc_enable(dsidev, channel, false);
/* MODE, 1 = video mode */
REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 4, 4);
/* MODE, 1 = video mode */
REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 4, 4);
word_count = DIV_ROUND_UP(dssdev->panel.timings.x_res * bpp, 8);
word_count = DIV_ROUND_UP(dssdev->panel.timings.x_res * bpp, 8);
dsi_vc_write_long_header(dsidev, channel, data_type, word_count, 0);
dsi_vc_write_long_header(dsidev, channel, data_type,
word_count, 0);
dsi_vc_enable(dsidev, channel, true);
dsi_if_enable(dsidev, true);
dsi_vc_enable(dsidev, channel, true);
dsi_if_enable(dsidev, true);
}
dss_mgr_enable(dssdev->manager);
return 0;
}
EXPORT_SYMBOL(dsi_video_mode_enable);
EXPORT_SYMBOL(dsi_enable_video_output);
void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel)
void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
dsi_if_enable(dsidev, false);
dsi_vc_enable(dsidev, channel, false);
if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
dsi_if_enable(dsidev, false);
dsi_vc_enable(dsidev, channel, false);
/* MODE, 0 = command mode */
REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 0, 4, 4);
/* MODE, 0 = command mode */
REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 0, 4, 4);
dsi_vc_enable(dsidev, channel, true);
dsi_if_enable(dsidev, true);
dsi_vc_enable(dsidev, channel, true);
dsi_if_enable(dsidev, true);
}
dss_mgr_disable(dssdev->manager);
}
EXPORT_SYMBOL(dsi_video_mode_disable);
EXPORT_SYMBOL(dsi_disable_video_output);
static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
u16 w, u16 h)

4
include/video/omapdss.h
View File

@ -294,8 +294,8 @@ 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);
int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel);
void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel);
/* Board specific data */
struct omap_dss_board_info {