[PATCH 6.19 085/342] pinctrl: renesas: rza1: Normalize return value of gpio_get()

Greg Kroah-Hartman
2026-03-31T16:34:57Z

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

[ Upstream commit fb22bb9701d48c4b0e81fe204c2f96a37a520568 ]

The GPIO .get() callback is expected to return 0 or 1 (or a negative
error code). Ensure that the value returned by rza1_gpio_get() is
normalized to the [0, 1] range.

Fixes: 86ef402d805d606a ("gpiolib: sanitize the return value of gpio_chip::get()")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/aZYnyl-Nf4S1U2yj@google.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pinctrl/renesas/pinctrl-rza1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rza1.c b/drivers/pinctrl/renesas/pinctrl-rza1.c
index 3cfa4c8be80ea..d83c7d8ee82c4 100644
--- a/drivers/pinctrl/renesas/pinctrl-rza1.c
+++ b/drivers/pinctrl/renesas/pinctrl-rza1.c
@@ -589,7 +589,7 @@ static inline unsigned int rza1_get_bit(struct rza1_port *port,
{
void __iomem *mem = RZA1_ADDR(port->base, reg, port->id);

- return ioread16(mem) & BIT(bit);
+ return !!(ioread16(mem) & BIT(bit));
}

/**
--
2.51.0