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drm/panel: otm8009a: remove hack to force commands in HS 

The panel is able to receive commands in LP. The current hack to
force backlight commands in HS was due to workaround an incorrect
settings on DSI controller that prevents sending LP commands while
video out was active.

Remove the hack that forces HS commands.

Changes in v2:
  - Added my signed-off

Signed-off-by: Antonio Borneo <antonio.borneo@st.com>
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200922074242.28719-1-yannick.fertre@st.com
This commit is contained in:
Antonio Borneo 2020-09-22 09:42:42 +02:00 committed by Sam Ravnborg
parent 61c523b932
commit a34ebe7e6d
1 changed files with 2 additions and 16 deletions
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18
drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
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@ -99,20 +99,6 @@ static void otm8009a_dcs_write_buf(struct otm8009a *ctx, const void *data,
dev_warn(ctx->dev, "mipi dsi dcs write buffer failed\n");
}
static void otm8009a_dcs_write_buf_hs(struct otm8009a *ctx, const void *data,
size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
/* data will be sent in dsi hs mode (ie. no lpm) */
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
otm8009a_dcs_write_buf(ctx, data, len);
/* restore back the dsi lpm mode */
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
}
#define dcs_write_seq(ctx, seq...) \
({ \
static const u8 d[] = { seq }; \
@ -400,7 +386,7 @@ static int otm8009a_backlight_update_status(struct backlight_device *bd)
*/
data[0] = MIPI_DCS_SET_DISPLAY_BRIGHTNESS;
data[1] = bd->props.brightness;
otm8009a_dcs_write_buf_hs(ctx, data, ARRAY_SIZE(data));
otm8009a_dcs_write_buf(ctx, data, ARRAY_SIZE(data));
/* set Brightness Control & Backlight on */
data[1] = 0x24;
@ -412,7 +398,7 @@ static int otm8009a_backlight_update_status(struct backlight_device *bd)
/* Update Brightness Control & Backlight */
data[0] = MIPI_DCS_WRITE_CONTROL_DISPLAY;
otm8009a_dcs_write_buf_hs(ctx, data, ARRAY_SIZE(data));
otm8009a_dcs_write_buf(ctx, data, ARRAY_SIZE(data));
return 0;
}