From 6f13a895cef83e6de59b3bdff4fd232b9ad93e70 Mon Sep 17 00:00:00 2001 From: Xinlei Lee Date: Wed, 9 Nov 2022 18:00:59 +0800 Subject: [PATCH] drm/mediatek: Modify dpi power on/off sequence. [ Upstream commit ff446c0f6290185cefafe3b376bb86063a3a9f6a ] Modify dpi power on/off sequence so that the first gpio operation will take effect. Fixes: 6bd4763fd532 ("drm/mediatek: set dpi pin mode to gpio low to avoid leakage current") Signed-off-by: Xinlei Lee Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin --- drivers/gpu/drm/mediatek/mtk_dpi.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 4a64d8aed9da..7c68a3933915 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -364,9 +364,6 @@ static void mtk_dpi_power_off(struct mtk_dpi *dpi) if (--dpi->refcount != 0) return; - if (dpi->pinctrl && dpi->pins_gpio) - pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio); - mtk_dpi_disable(dpi); clk_disable_unprepare(dpi->pixel_clk); clk_disable_unprepare(dpi->engine_clk); @@ -391,9 +388,6 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi) goto err_pixel; } - if (dpi->pinctrl && dpi->pins_dpi) - pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi); - return 0; err_pixel: @@ -529,12 +523,18 @@ static void mtk_dpi_encoder_disable(struct drm_encoder *encoder) struct mtk_dpi *dpi = mtk_dpi_from_encoder(encoder); mtk_dpi_power_off(dpi); + + if (dpi->pinctrl && dpi->pins_gpio) + pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio); } static void mtk_dpi_encoder_enable(struct drm_encoder *encoder) { struct mtk_dpi *dpi = mtk_dpi_from_encoder(encoder); + if (dpi->pinctrl && dpi->pins_dpi) + pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi); + mtk_dpi_power_on(dpi); mtk_dpi_set_display_mode(dpi, &dpi->mode); mtk_dpi_enable(dpi);