From f21fdcd061eaeab709adbeb27bb8f0dedfd84e6d Mon Sep 17 00:00:00 2001 From: Chaoyi Chen Date: Wed, 25 Jun 2025 10:03:44 +0000 Subject: [PATCH] drm/rockchip: ebc: Add sleep pinctrl for RK3576 ebc When PD_VPU power domain is off, the pin state of ebc is X state. Set the EBC pin control to GPIO and pull low to ensure that it remains in low state. Change-Id: I3e4fcab3b0c5c4e5b4e47d78cec021562750ffb5 Signed-off-by: Chaoyi Chen --- drivers/gpu/drm/rockchip/ebc-dev/tcon/ebc_tcon.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rockchip/ebc-dev/tcon/ebc_tcon.c b/drivers/gpu/drm/rockchip/ebc-dev/tcon/ebc_tcon.c index 2863cd53ce2b..9eea6b1464c1 100644 --- a/drivers/gpu/drm/rockchip/ebc-dev/tcon/ebc_tcon.c +++ b/drivers/gpu/drm/rockchip/ebc-dev/tcon/ebc_tcon.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -428,14 +429,15 @@ static int rk3576_tcon_enable(struct ebc_tcon *tcon, struct ebc_panel *panel) enable_irq(tcon->irq); tcon->panel = panel; + pinctrl_pm_select_default_state(tcon->dev); + return 0; } static void rk3576_tcon_disable(struct ebc_tcon *tcon) { disable_irq(tcon->irq); - /* output low */ - tcon_update_bits(tcon, RK3576_EBC_DSP_CTRL2, RK3576_DSP_OUT_LOW, RK3576_DSP_OUT_LOW); + pinctrl_pm_select_sleep_state(tcon->dev); pm_runtime_put_sync(tcon->dev); clk_disable_unprepare(tcon->dclk);