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ramips: fix gpio driver

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Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>
This commit is contained in:
DENG Qingfang 2019-09-08 00:14:26 +08:00 committed by AmadeusGhost
parent c011f11d29
commit 35ef923b22
1 changed files with 3 additions and 17 deletions
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20
target/linux/ramips/patches-4.19/0027-GPIO-MIPS-ralink-add-gpio-driver-for-ralink-SoC.patch
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@ -72,7 +72,7 @@ Cc: linux-gpio@vger.kernel.org
obj-$(CONFIG_GPIO_RCAR) += gpio-rcar.o
--- /dev/null
+++ b/drivers/gpio/gpio-ralink.c
@@ -0,0 +1,355 @@
@@ -0,0 +1,341 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
@ -328,20 +328,6 @@ Cc: linux-gpio@vger.kernel.org
+ dev_info(rg->chip.parent, "registering %d irq handlers\n", rg->chip.ngpio);
+}
+
+static int ralink_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ int gpio = chip->base + offset;
+
+ return pinctrl_request_gpio(gpio);
+}
+
+static void ralink_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ int gpio = chip->base + offset;
+
+ pinctrl_free_gpio(gpio);
+}
+
+static int ralink_gpio_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
@ -393,9 +379,9 @@ Cc: linux-gpio@vger.kernel.org
+ rg->chip.direction_output = ralink_gpio_direction_output;
+ rg->chip.get = ralink_gpio_get;
+ rg->chip.set = ralink_gpio_set;
+ rg->chip.request = ralink_gpio_request;
+ rg->chip.request = gpiochip_generic_request;
+ rg->chip.to_irq = ralink_gpio_to_irq;
+ rg->chip.free = ralink_gpio_free;
+ rg->chip.free = gpiochip_generic_free;
+
+ /* set polarity to low for all lines */
+ rt_gpio_w32(rg, GPIO_REG_POL, 0);