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drm/panel-simple: Support DP AUX backlight

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If there is no backlight specified in the device tree and the panel
has access to the DP AUX channel then create a DP AUX backlight if
supported by the panel.

Signed-off-by: Rajeev Nandan <rajeevny@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1624726268-14869-3-git-send-email-rajeevny@codeaurora.org
This commit is contained in:
Rajeev Nandan 2021-06-26 22:21:04 +05:30 committed by Douglas Anderson
parent 10f7b40e4f
commit bfd451403d
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/panel/panel-simple.c
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@ -800,6 +800,12 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc,
if (err)
goto disable_pm_runtime;
if (!panel->base.backlight && panel->aux) {
err = drm_panel_dp_aux_backlight(&panel->base, panel->aux);
if (err)
goto disable_pm_runtime;
}
drm_panel_add(&panel->base);
return 0;