From 9a147a65de1ac89e506ef90413f41ebd96e03fd3 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Wed, 9 Nov 2011 15:30:11 +0200 Subject: [PATCH] OMAPDSS: DSI: call mgr_enable/disable for cmd mode displays 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 --- drivers/video/omap2/displays/panel-taal.c | 6 +++ drivers/video/omap2/dss/apply.c | 6 ++- drivers/video/omap2/dss/dsi.c | 73 +++++++++++++++++-------------- include/video/omapdss.h | 4 +- 4 files changed, 51 insertions(+), 38 deletions(-) diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c index dd64bd1..00c5c61 100644 --- a/drivers/video/omap2/displays/panel-taal.c +++ b/drivers/video/omap2/displays/panel-taal.c @@ -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); diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c index eafa808..936571b 100644 --- a/drivers/video/omap2/dss/apply.c +++ b/drivers/video/omap2/dss/apply.c @@ -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); diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 9358afa2..9cb2e82 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -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) diff --git a/include/video/omapdss.h b/include/video/omapdss.h index eaeca89d..25ef771 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -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 { -- 2.7.4