From: Jonas Karlman <jonas@kwiboo.se>
Date: Sun, 12 May 2024 12:16:14 +0000 (+0000)
Subject: pinctrl: rockchip: rk3188: Fix support for IOMUX_GPIO_ONLY flag
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=4b488940f5d10833d8bd898db4b7615587a5f86e;p=u-boot.git

pinctrl: rockchip: rk3188: Fix support for IOMUX_GPIO_ONLY flag

GPIO0_A0-A7 on RK3188 is IOMUX_GPIO_ONLY, however, trying to set gpio
mux return an -ENOTSUPP error code. Fix this by validating using the mux
function type and not the iomux flag.

Based on Linux commit c4a532dee6b6 ("pinctrl: rockchip: handle first
half of rk3188-bank0 correctly").

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
---

diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
index 8ef089994f..a3cdadb86b 100644
--- a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
+++ b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
@@ -172,7 +172,7 @@ static int rockchip_verify_mux(struct rockchip_pin_bank *bank,
 	}
 
 	if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY) {
-		if (mux != IOMUX_GPIO_ONLY) {
+		if (mux != RK_FUNC_GPIO) {
 			debug("pin %d only supports a gpio mux\n", pin);
 			return -ENOTSUPP;
 		}