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drm/bridge: synopsys: dw-mipi-dsi: enable EoTp by default

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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
This commit is contained in:
Christoph Fritz 2024-07-05 11:38:44 +02:00 committed by Robert Foss
parent bb99c51bda
commit d97e71e449
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GPG Key ID: 3EFD900F76D1D784
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
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@ -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,