From: Ye Li <ye.li@nxp.com>
Date: Sun, 3 May 2020 13:01:27 +0000 (+0800)
Subject: pinctrl: nxp: scu: Check the pad partition before set pinmux
X-Git-Tag: v2020.07-rc2~3^2~61
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a6979f78bcba76611e5e3fd6226b5b79c8021c2e;p=oweals%2Fu-boot.git

pinctrl: nxp: scu: Check the pad partition before set pinmux

If a pad is not owned by current partition we should not set its
pinmux.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/drivers/pinctrl/nxp/pinctrl-scu.c b/drivers/pinctrl/nxp/pinctrl-scu.c
index aa11075e0a..c032be782a 100644
--- a/drivers/pinctrl/nxp/pinctrl-scu.c
+++ b/drivers/pinctrl/nxp/pinctrl-scu.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright 2018 NXP
+ * Copyright 2018-2019 NXP
  */
 
 #include <common.h>
@@ -29,6 +29,11 @@ static int imx_pinconf_scu_set(struct imx_pinctrl_soc_info *info, u32 pad,
 	 * to handle that in scfw, so config it in pad conf func
 	 */
 
+	if (!sc_rm_is_pad_owned(-1, pad)) {
+		debug("Pad[%u] is not owned by curr partition\n", pad);
+		return -EPERM;
+	}
+
 	val |= PADRING_IFMUX_EN_MASK;
 	val |= PADRING_GP_EN_MASK;
 	val |= (mux << PADRING_IFMUX_SHIFT) & PADRING_IFMUX_MASK;
@@ -57,7 +62,7 @@ int imx_pinctrl_scu_conf_pins(struct imx_pinctrl_soc_info *info, u32 *pin_data,
 		config_val = pin_data[j++];
 
 		ret = imx_pinconf_scu_set(info, pin_id, mux, config_val);
-		if (ret)
+		if (ret && ret != -EPERM)
 			printf("Set pin %d, mux %d, val %d, error\n", pin_id,
 			       mux, config_val);
 	}