linux-kernel - [PATCH 2/2] pinctrl: starfive: jh7100: ignore disabled device tree nodes

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Message-Id: <fe4c15dcc3074412326b8dc296b0cbccf79c49bf.1701422582.git.namcao@linutronix.de>
Date:   Fri,  1 Dec 2023 10:23:29 +0100
From:   Nam Cao <namcao@...utronix.de>
To:     Emil Renner Berthing <kernel@...il.dk>,
        Jianlong Huang <jianlong.huang@...rfivetech.com>,
        Hal Feng <hal.feng@...rfivetech.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Huan Feng <huan.feng@...rfivetech.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Drew Fustini <drew@...gleboard.org>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Nam Cao <namcao@...utronix.de>, stable@...r.kernel.org
Subject: [PATCH 2/2] pinctrl: starfive: jh7100: ignore disabled device tree nodes

The driver always registers pin configurations in device tree. This can
cause some inconvenience to users, as pin configurations in the base
device tree cannot be disabled in the device tree overlay, even when the
relevant devices are not used.

Ignore disabled pin configuration nodes in device tree.

Fixes: ec648f6b7686 ("pinctrl: starfive: Add pinctrl driver for StarFive SoCs")
Cc: stable@...r.kernel.org
Signed-off-by: Nam Cao <namcao@...utronix.de>
---
 drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c b/drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c
index 530fe340a9a1..561fd0c6b9b0 100644
--- a/drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c
+++ b/drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c
@@ -492,7 +492,7 @@ static int starfive_dt_node_to_map(struct pinctrl_dev *pctldev,
 
 	nmaps = 0;
 	ngroups = 0;
-	for_each_child_of_node(np, child) {
+	for_each_available_child_of_node(np, child) {
 		int npinmux = of_property_count_u32_elems(child, "pinmux");
 		int npins   = of_property_count_u32_elems(child, "pins");
 
@@ -527,7 +527,7 @@ static int starfive_dt_node_to_map(struct pinctrl_dev *pctldev,
 	nmaps = 0;
 	ngroups = 0;
 	mutex_lock(&sfp->mutex);
-	for_each_child_of_node(np, child) {
+	for_each_available_child_of_node(np, child) {
 		int npins;
 		int i;
 
-- 
2.39.2