Commit 6c66eba5 authored by Heiko Stuebner's avatar Heiko Stuebner
Browse files

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



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: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250707164906.1445288-2-heiko@sntech.de
parent 73b81fcb

drivers/gpu/drm/panel/panel-ilitek-ili9881c.c

+8 −4
Original line number Diff line number Diff line
@@ -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)