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Fri, 17 Jul 2026 21:13:18 -0700 (PDT) From: Dmitry Torokhov To: Bartosz Golaszewski , Linus Walleij Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/4] gpiolib: of: add a quirk for legacy name for TWL4030 external mute GPIO Date: Fri, 17 Jul 2026 21:13:07 -0700 Message-ID: <20260718041311.2605172-3-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.55.0.229.g6434b31f56-goog In-Reply-To: <20260718041311.2605172-1-dmitry.torokhov@gmail.com> References: <20260718041311.2605172-1-dmitry.torokhov@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The legacy property name specifying external mute GPIO of TWL4030 audio coded is "ti,hs_extmute_gpio". To allow converting the driver to gpiod API that requires names ending with "-gpios" suffix, add a quirk to gpiolib. Note that we a custom conversion routine is used as compatible check is needed on the parent node, and name of the node ("codec") is also validated. Signed-off-by: Dmitry Torokhov --- drivers/gpio/gpiolib-of.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index f4ea7ca27296..67a36e3851a4 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -676,6 +676,35 @@ static struct gpio_desc *of_find_trigger_gpio(struct device_node *np, } #endif +#if IS_ENABLED(CONFIG_SND_SOC_TWL4030) +static struct gpio_desc *of_find_twl4030_gpio(struct device_node *np, + const char *con_id, + unsigned int idx, + enum of_gpio_flags *of_flags) +{ + const char *legacy_id = "ti,hs_extmute_gpio"; + struct gpio_desc *desc; + + if (!con_id || strcmp(con_id, "ti,hs_extmute")) + return ERR_PTR(-ENOENT); + + if (!of_node_name_eq(np, "codec")) + return ERR_PTR(-ENOENT); + + struct device_node *parent __free(device_node) = of_get_parent(np); + if (!parent) + return ERR_PTR(-ENOENT); + + if (!of_device_is_compatible(parent, "twl4030-audio")) + return ERR_PTR(-ENOENT); + + desc = of_get_named_gpiod_flags(np, legacy_id, 0, of_flags); + if (!gpiod_not_found(desc)) + pr_info("%s is using legacy gpio name '%s' instead of '%s-gpios'\n", + of_node_full_name(np), legacy_id, con_id); + return desc; +} +#endif typedef struct gpio_desc *(*of_find_gpio_quirk)(struct device_node *np, const char *con_id, @@ -688,6 +717,9 @@ static const of_find_gpio_quirk of_find_gpio_quirks[] = { #endif #if IS_ENABLED(CONFIG_LEDS_TRIGGER_GPIO) of_find_trigger_gpio, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_TWL4030) + of_find_twl4030_gpio, #endif NULL }; -- 2.55.0.229.g6434b31f56-goog