From 39a8f0be2d3df589ba227310e66dca706e154920 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Fri, 4 Jan 2019 10:55:05 +0100 Subject: [PATCH] gpio: stm32f7: Fix gpio bank hole management In case "gpio-ranges" property is not present in device tree, use default value for gpio_count and gpio_range. This fixes an issue on stm32 F7 and H7 boards where "pinmux status -a" command didn't return any pin status due to the fact that both stm32 F7 and H7 board DT doesn't use the gpio-ranges property. Fixes: dbf928dd2634a6("gpio: stm32f7: Add gpio bank holes management") Signed-off-by: Patrice Chotard --- drivers/gpio/stm32f7_gpio.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpio/stm32f7_gpio.c b/drivers/gpio/stm32f7_gpio.c index f160b4e..dbaa80c 100644 --- a/drivers/gpio/stm32f7_gpio.c +++ b/drivers/gpio/stm32f7_gpio.c @@ -171,6 +171,11 @@ static int gpio_stm32_probe(struct udevice *dev) ret = dev_read_phandle_with_args(dev, "gpio-ranges", NULL, 3, i, &args); + if (ret == -ENOENT) { + uc_priv->gpio_count = STM32_GPIOS_PER_BANK; + priv->gpio_range = GENMASK(STM32_GPIOS_PER_BANK - 1, 0); + } + while (ret != -ENOENT) { priv->gpio_range |= GENMASK(args.args[2] + args.args[0] - 1, args.args[0]); -- 2.7.4