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drm/panel: ilitek-ili9881c: turn off power-supply when init fails

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The prepare function turns on the power-supply regulator first, when
preparing the display. But in an error case, just returns the error
code, but does not power off the regulator again, fix that.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250707164906.1445288-2-heiko@sntech.de
This commit is contained in:
Heiko Stuebner 2025-07-07 18:48:54 +02:00
parent 73b81fcb12
commit 6c66eba502
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
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@ -1486,7 +1486,7 @@ static int ili9881c_prepare(struct drm_panel *panel)
instr->arg.cmd.data);
if (ret)
return ret;
goto disable_power;
}
ret = ili9881c_switch_page(ctx, 0);
@ -1498,18 +1498,22 @@ static int ili9881c_prepare(struct drm_panel *panel)
&ctx->address_mode,
sizeof(ctx->address_mode));
if (ret < 0)
return ret;
goto disable_power;
}
ret = mipi_dsi_dcs_set_tear_on(ctx->dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
if (ret)
return ret;
goto disable_power;
ret = mipi_dsi_dcs_exit_sleep_mode(ctx->dsi);
if (ret)
return ret;
goto disable_power;
return 0;
disable_power:
regulator_disable(ctx->power);
return ret;
}
static int ili9881c_enable(struct drm_panel *panel)