diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2020-12-15 13:46:53 +0300 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2020-12-15 17:17:32 +0300 |
commit | b6c1048cc71d48b2fd4209761df577789989a391 (patch) | |
tree | faaade0c9c72362258a585a8195e3c35d6bfeb11 /drivers/gpu/drm/omapdrm | |
parent | 7b93de9899b8eb566acece643f68c4849c3f4f60 (diff) | |
download | linux-b6c1048cc71d48b2fd4209761df577789989a391.tar.xz |
drm/omap: dsi: split video mode enable/disable into separate func
Clean up the code by separating video-mode enable/disable code into
functions of their own.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-81-tomi.valkeinen@ti.com
Diffstat (limited to 'drivers/gpu/drm/omapdrm')
-rw-r--r-- | drivers/gpu/drm/omapdrm/dss/dsi.c | 101 |
1 files changed, 57 insertions, 44 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index 40bfd92321c1..a17d7345fc9a 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -3209,12 +3209,61 @@ static int dsi_configure_pins(struct dsi_data *dsi, return 0; } -static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc) +static int dsi_enable_video_mode(struct dsi_data *dsi, int vc) { - struct dsi_data *dsi = to_dsi_data(dssdev); int bpp = mipi_dsi_pixel_format_to_bpp(dsi->pix_fmt); u8 data_type; u16 word_count; + + switch (dsi->pix_fmt) { + case MIPI_DSI_FMT_RGB888: + data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24; + break; + case MIPI_DSI_FMT_RGB666: + data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18; + break; + case MIPI_DSI_FMT_RGB666_PACKED: + data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18; + break; + case MIPI_DSI_FMT_RGB565: + data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16; + break; + default: + return -EINVAL; + } + + dsi_if_enable(dsi, false); + dsi_vc_enable(dsi, vc, false); + + /* MODE, 1 = video mode */ + REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4); + + word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8); + + dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type, + word_count, 0); + + dsi_vc_enable(dsi, vc, true); + dsi_if_enable(dsi, true); + + return 0; +} + +static void dsi_disable_video_mode(struct dsi_data *dsi, int vc) +{ + dsi_if_enable(dsi, false); + dsi_vc_enable(dsi, vc, false); + + /* MODE, 0 = command mode */ + REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4); + + dsi_vc_enable(dsi, vc, true); + dsi_if_enable(dsi, true); +} + +static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc) +{ + struct dsi_data *dsi = to_dsi_data(dssdev); int r; r = dsi_init_dispc(dsi); @@ -3224,37 +3273,9 @@ static void dsi_enable_video_output(struct omap_dss_device *dssdev, int vc) } if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { - switch (dsi->pix_fmt) { - case MIPI_DSI_FMT_RGB888: - data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24; - break; - case MIPI_DSI_FMT_RGB666: - data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18; - break; - case MIPI_DSI_FMT_RGB666_PACKED: - data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18; - break; - case MIPI_DSI_FMT_RGB565: - data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16; - break; - default: - r = -EINVAL; - goto err_pix_fmt; - } - - dsi_if_enable(dsi, false); - dsi_vc_enable(dsi, vc, false); - - /* MODE, 1 = video mode */ - REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 1, 4, 4); - - word_count = DIV_ROUND_UP(dsi->vm.hactive * bpp, 8); - - dsi_vc_write_long_header(dsi, vc, dsi->dsidev->channel, data_type, - word_count, 0); - - dsi_vc_enable(dsi, vc, true); - dsi_if_enable(dsi, true); + r = dsi_enable_video_mode(dsi, vc); + if (r) + goto err_video_mode; } r = dss_mgr_enable(&dsi->output); @@ -3268,7 +3289,7 @@ err_mgr_enable: dsi_if_enable(dsi, false); dsi_vc_enable(dsi, vc, false); } -err_pix_fmt: +err_video_mode: dsi_uninit_dispc(dsi); dev_err(dsi->dev, "failed to enable DSI encoder!\n"); return; @@ -3278,16 +3299,8 @@ static void dsi_disable_video_output(struct omap_dss_device *dssdev, int vc) { struct dsi_data *dsi = to_dsi_data(dssdev); - if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { - dsi_if_enable(dsi, false); - dsi_vc_enable(dsi, vc, false); - - /* MODE, 0 = command mode */ - REG_FLD_MOD(dsi, DSI_VC_CTRL(vc), 0, 4, 4); - - dsi_vc_enable(dsi, vc, true); - dsi_if_enable(dsi, true); - } + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) + dsi_disable_video_mode(dsi, vc); dss_mgr_disable(&dsi->output); |