linux-kernel - [PATCH v2 10/12] pinctrl: qcom: add infrastructure for marking pin functions as GPIOs

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Message-Id: <20250709-pinctrl-gpio-pinfuncs-v2-10-b6135149c0d9@linaro.org>
Date: Wed, 09 Jul 2025 16:39:06 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Alexey Klimov <alexey.klimov@...aro.org>, 
 Lorenzo Bianconi <lorenzo@...nel.org>, Sean Wang <sean.wang@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Paul Cercueil <paul@...pouillou.net>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, linux-mediatek@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v2 10/12] pinctrl: qcom: add infrastructure for marking pin
 functions as GPIOs

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Add a helper macro that wraps PINCTRL_GPIO_PINFUNCTION() for pinctrl-msm
pin functions and assign the .function_is_gpio() callback in pinmux_ops.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/pinctrl/qcom/pinctrl-msm.c | 1 +
 drivers/pinctrl/qcom/pinctrl-msm.h | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 965f0cceac56697bc4cdb851c8201db7508c042e..7010be8d1ace062fcf7743e539d2065d4aed856b 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -265,6 +265,7 @@ static const struct pinmux_ops msm_pinmux_ops = {
 	.get_functions_count	= pinmux_generic_get_function_count,
 	.get_function_name	= pinmux_generic_get_function_name,
 	.get_function_groups	= pinmux_generic_get_function_groups,
+	.function_is_gpio	= pinmux_generic_function_is_gpio,
 	.gpio_request_enable	= msm_pinmux_request_gpio,
 	.set_mux		= msm_pinmux_set_mux,
 };
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h
index d7dc0947bb161868c8f433dc2536719b8afc8bd8..4625fa5320a95a4d24e3a0c98a249e4f163dd4c7 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.h
+++ b/drivers/pinctrl/qcom/pinctrl-msm.h
@@ -29,6 +29,11 @@ struct pinctrl_pin_desc;
 					fname##_groups,		\
 					ARRAY_SIZE(fname##_groups))
 
+#define MSM_GPIO_PIN_FUNCTION(fname)				\
+	[msm_mux_##fname] = PINCTRL_GPIO_PINFUNCTION(#fname,	\
+					fname##_groups,		\
+					ARRAY_SIZE(fname##_groups))
+
 #define QCA_PIN_FUNCTION(fname)					\
 	[qca_mux_##fname] = PINCTRL_PINFUNCTION(#fname,		\
 					fname##_groups,		\

-- 
2.48.1