From 1af5e42f170d2c4b944beeb875b80ec7f061038a Mon Sep 17 00:00:00 2001 From: Ondrej Jirman Date: Thu, 25 May 2023 15:27:08 +0200 Subject: [PATCH] pinephone-pro: Fix I/O port voltage (GPIO3D4A is 1.8V) This fixes access to camera sensor over I2C during probe time in the kernel. (Kernel will fix I/0 port voltage by itself, but the timing depends on probe order of the drivers, so the fix can come after the camera sensor driver already failed to probe.) Signed-off-by: Ondrej Jirman Cc: Kever Yang Reviewed-by: Kever Yang --- board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c b/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c index eb639cd0d07..b6ccbb9c1c4 100644 --- a/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c +++ b/board/pine64/pinephone-pro-rk3399/pinephone-pro-rk3399.c @@ -15,7 +15,8 @@ #include #include -#define GRF_IO_VSEL_BT565_SHIFT 0 +#define GRF_IO_VSEL_BT565_GPIO2AB 1 +#define GRF_IO_VSEL_AUDIO_GPIO3D4A 2 #define PMUGRF_CON0_VSEL_SHIFT 8 #ifndef CONFIG_SPL_BUILD @@ -48,7 +49,8 @@ static void setup_iodomain(void) syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF); /* BT565 is in 1.8v domain */ - rk_setreg(&grf->io_vsel, 1 << GRF_IO_VSEL_BT565_SHIFT); + rk_setreg(&grf->io_vsel, + GRF_IO_VSEL_BT565_GPIO2AB | GRF_IO_VSEL_AUDIO_GPIO3D4A); /* Set GPIO1 1.8v/3.0v source select to PMU1830_VOL */ rk_setreg(&pmugrf->soc_con0, 1 << PMUGRF_CON0_VSEL_SHIFT); -- 2.41.0