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drm/rockchip: dsi: support EoTp feature

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In order to enhance the overall robustness of the system, DSI defines
a dedicated EoT packet (EoTp) at the protocol layer for signaling
the end of HS transmission. For backwards compatibility with earlier
DSI systems, the capability of generating and interpreting this EoTp
can be enabled or disabled.

Change-Id: Iddc7e82a7e3e47dea94846fbb771da8fddc0fda3
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
This commit is contained in:
Wyon Bi
2018-09-14 11:53:25 +08:00
parent b42258535e
commit fb45f3f26c
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/rockchip/dw-mipi-dsi.c
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@@ -1010,8 +1010,12 @@ 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)
{
regmap_write(dsi->regmap, 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_EOT_PACKET)
val &= ~EOTP_TX_EN;
regmap_write(dsi->regmap, DSI_PCKHDL_CFG, val);
}
static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi)