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drm/panel/panel-sitronix-st7701: Enable DSI burst mode, LPM, non-continuous clock

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The ST7701(S) is capable of DSI burst mode, which is more energy
efficient than the non-burst modes. Make use of it.

The ST7701(S) is capable of DSI non-continuous clock, since it
sources the TFT matrix driver clock from internal clock source.
The DSI non-continuous clock further reduce power utilization.

The ST7701(S) uses DSI LPM for command transmissions, make sure
this is configured correctly in the DSI mode flags.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220710194437.289042-2-marex@denx.de
This commit is contained in:
Marek Vasut 2022-07-10 21:44:30 +02:00 committed by Linus Walleij
parent 6f481afe22
commit a6c225be3d
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/panel/panel-sitronix-st7701.c
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@ -334,7 +334,8 @@ static int st7701_dsi_probe(struct mipi_dsi_device *dsi)
return -ENOMEM;
desc = of_device_get_match_data(&dsi->dev);
dsi->mode_flags = MIPI_DSI_MODE_VIDEO;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
dsi->format = desc->format;
dsi->lanes = desc->lanes;