From: Sascha Hauer <s.hauer@pengutronix.de> To: Barebox List <barebox@lists.infradead.org> Subject: [PATCH 1/4] gpio: allow -gpio suffix for gpio property names Date: Tue, 8 Jun 2021 11:36:32 +0200 [thread overview] Message-ID: <20210608093635.5749-2-s.hauer@pengutronix.de> (raw) In-Reply-To: <20210608093635.5749-1-s.hauer@pengutronix.de> GPIO properties in the device tree can have a -gpios suffix or a -gpio suffix. The latter was not handled, this patch changes that. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/gpio/gpiolib.c | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 7b7261d01f..387b410f12 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -555,27 +555,39 @@ static int of_gpiochip_scan_hogs(struct gpio_chip *chip) return 0; } +static const char *gpio_suffixes[] = { + "gpios", + "gpio", +}; + /* Linux compatibility helper: Get a GPIO descriptor from device tree */ int gpiod_get(struct device_d *dev, const char *_con_id, enum gpiod_flags flags) { struct device_node *np = dev->device_node; enum of_gpio_flags of_flags; - const char *con_id = "gpios", *label = dev_name(dev); - char *buf = NULL; + const char *label = dev_name(dev); + char *buf = NULL, *con_id; int gpio; - int ret; + int ret, i; if (!IS_ENABLED(CONFIG_OFDEVICE) || !dev->device_node) return -ENODEV; - if (_con_id) { - con_id = buf = basprintf("%s-gpios", _con_id); - if (!buf) + for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { + if (_con_id) + con_id = basprintf("%s-%s", _con_id, gpio_suffixes[i]); + else + con_id = basprintf("%s", gpio_suffixes[i]); + + if (!con_id) return -ENOMEM; - } - gpio = of_get_named_gpio_flags(np, con_id, 0, &of_flags); - free(buf); + gpio = of_get_named_gpio_flags(np, con_id, 0, &of_flags); + free(con_id); + + if (gpio_is_valid(gpio)) + break; + } if (!gpio_is_valid(gpio)) return gpio < 0 ? gpio : -EINVAL; -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2021-06-08 9:38 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-08 9:36 [PATCH v2 0/4] Rockchip eqos support Sascha Hauer 2021-06-08 9:36 ` Sascha Hauer [this message] 2021-06-08 9:36 ` [PATCH 2/4] net: designware: eqos: reset phy Sascha Hauer 2021-06-08 9:36 ` [PATCH 3/4] net: designware: eqos: set mdio bus device node Sascha Hauer 2021-06-08 9:36 ` [PATCH 4/4] net: eqos: Rockchip support Sascha Hauer
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