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| author | Christoph Fritz <chf.fritz@googlemail.com> | 2024-07-05 11:38:44 +0200 |
|---|---|---|
| committer | Robert Foss <rfoss@kernel.org> | 2024-08-01 13:34:18 +0200 |
| commit | d97e71e449373efbd2403f1d7a32d416599f32ac (patch) | |
| tree | e96be24d6d59dde34371bc032598a0d4b764dfc3 /drivers/gpu/drm/bridge/synopsys | |
| parent | drm/loongson: use GEM references instead of TTMs (diff) | |
| download | linux-d97e71e449373efbd2403f1d7a32d416599f32ac.tar.xz linux-d97e71e449373efbd2403f1d7a32d416599f32ac.zip | |
drm/bridge: synopsys: dw-mipi-dsi: enable EoTp by default
Enable the transmission of an EoTp (end of transmission packet) by
default. EoTp should be enabled anyway because it is a Linux necessity
that can be disabled by a dsi mod_flag if needed.
EoTp signals the end of an HS transmission, this adds overall robustness
at protocol level at the expense of an increased overhead.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/6a7293bd06942131161c5a7b7878c51cfbbb807e.camel@googlemail.com
Diffstat (limited to 'drivers/gpu/drm/bridge/synopsys')
| -rw-r--r-- | drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c index c4e9d96933dc..0fb02e4e7f4e 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -722,7 +722,12 @@ static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi, static void dw_mipi_dsi_packet_handler_config(struct dw_mipi_dsi *dsi) { - dsi_write(dsi, DSI_PCKHDL_CFG, CRC_RX_EN | ECC_RX_EN | BTA_EN); + u32 val = CRC_RX_EN | ECC_RX_EN | BTA_EN | EOTP_TX_EN; + + if (dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET) + val &= ~EOTP_TX_EN; + + dsi_write(dsi, DSI_PCKHDL_CFG, val); } static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi, |