Openwrt/target/linux/ath25/patches-5.4/210-reset_button.patch
Adrian Schmutzler 081e944be6 ath25: add back target support
Discussion on the mailing list reveals that this target has active
users. As we are finally able to upgrade this target to kernel 5.4,
add it back to master.

This reverts commit 7d29a55714 ("ath25: drop target") and
immediately moves the relevant files to 5.4, without touching
the content.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-09-06 19:49:05 +02:00

72 lines
1.5 KiB
Diff

--- a/arch/mips/ath25/Makefile
+++ b/arch/mips/ath25/Makefile
@@ -8,7 +8,7 @@
# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
#
-obj-y += board.o prom.o devices.o
+obj-y += board.o prom.o devices.o reset.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
--- /dev/null
+++ b/arch/mips/ath25/reset.c
@@ -0,0 +1,57 @@
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <ath25_platform.h>
+#include "devices.h"
+
+static int __init
+ar231x_init_reset(void)
+{
+ struct platform_device *pdev;
+ struct gpio_keys_platform_data pdata;
+ struct gpio_keys_button *p;
+ int err;
+
+ if (ath25_board.config->reset_config_gpio == 0xffff)
+ return -ENODEV;
+
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
+ goto err;
+
+ p->desc = "reset";
+ p->type = EV_KEY;
+ p->code = KEY_RESTART;
+ p->debounce_interval = 60;
+ p->gpio = ath25_board.config->reset_config_gpio;
+
+ memset(&pdata, 0, sizeof(pdata));
+ pdata.poll_interval = 20;
+ pdata.buttons = p;
+ pdata.nbuttons = 1;
+
+ pdev = platform_device_alloc("gpio-keys-polled", 0);
+ if (!pdev)
+ goto err_free;
+
+ err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+ if (err)
+ goto err_put_pdev;
+
+ err = platform_device_add(pdev);
+ if (err)
+ goto err_put_pdev;
+
+ return 0;
+
+err_put_pdev:
+ platform_device_put(pdev);
+err_free:
+ kfree(p);
+err:
+ return -ENOMEM;
+}
+
+device_initcall(ar231x_init_reset);