diff options
| author | vkorjani <vikas.korjani@intel.com> | 2018-04-10 10:12:45 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-07-25 07:51:05 -0400 |
| commit | ea107a183be1d6e69448d7100121c479e24b7c1d (patch) | |
| tree | 5bfac203d267dfdd5979c03ab28e82ea2f023fa3 | |
| parent | 23f9455157f62e2fc7fbe7654717bcb70eee543d (diff) | |
| download | linux-ea107a183be1d6e69448d7100121c479e24b7c1d.tar.bz2 | |
drm: Add support for pps and compression mode command packet
After enabling DSC we need to send compression mode command packet
and pps data packet, for which 2 new data types are added
07h Compression Mode Data Type Write , short write, 2 parameters
0Ah PPS Long Write (word count determines number of bytes)
This patch adds support to send these packets.
Cc: David Airlie <airlied@linux.ie>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Changes in v3:
- None
Signed-off-by: vkorjani <vikas.korjani@intel.com>
[seanpaul removed pps_write_buffer fn, added types to packet_format helpers]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dsi.c | 2 | ||||
| -rw-r--r-- | include/video/mipi_display.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index bc73b7f5b9fc..80b75501f5c6 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -392,6 +392,7 @@ bool mipi_dsi_packet_format_is_short(u8 type) case MIPI_DSI_DCS_SHORT_WRITE: case MIPI_DSI_DCS_SHORT_WRITE_PARAM: case MIPI_DSI_DCS_READ: + case MIPI_DSI_DCS_COMPRESSION_MODE: case MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE: return true; } @@ -410,6 +411,7 @@ EXPORT_SYMBOL(mipi_dsi_packet_format_is_short); bool mipi_dsi_packet_format_is_long(u8 type) { switch (type) { + case MIPI_DSI_PPS_LONG_WRITE: case MIPI_DSI_NULL_PACKET: case MIPI_DSI_BLANKING_PACKET: case MIPI_DSI_GENERIC_LONG_WRITE: diff --git a/include/video/mipi_display.h b/include/video/mipi_display.h index 19aa65a35546..49a53ef8da96 100644 --- a/include/video/mipi_display.h +++ b/include/video/mipi_display.h @@ -38,6 +38,9 @@ enum { MIPI_DSI_DCS_READ = 0x06, + MIPI_DSI_DCS_COMPRESSION_MODE = 0x07, + MIPI_DSI_PPS_LONG_WRITE = 0x0A, + MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE = 0x37, MIPI_DSI_END_OF_TRANSMISSION = 0x08, |