ralink: drop v3.8 support

Signed-off-by: John Crispin <blogic@opewnrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37311 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 301 deletions

diff --git a/target/linux/ramips/patches-3.8/0206-owrt-MIPS-ralink-add-pseudo-pwm-led-trigger-based-on.patch b/target/linux/ramips/patches-3.8/0206-owrt-MIPS-ralink-add-pseudo-pwm-led-trigger-based-on.patch
deleted file mode 100644
index 8e62d13bf1..0000000000
--- a/target/linux/ramips/patches-3.8/0206-owrt-MIPS-ralink-add-pseudo-pwm-led-trigger-based-on.patch
+++ /dev/null
@@ -1,301 +0,0 @@
-From b35a0a294d39316c20f85004335c02f33a70ab68 Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Sun, 24 Mar 2013 17:17:17 +0100
-Subject: [PATCH 206/208] owrt: MIPS: ralink: add pseudo pwm led trigger based
- on timer0
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- arch/mips/ralink/timer.c |  213 ++++++++++++++++++++++++++++++++++++++++++----
- 1 file changed, 197 insertions(+), 16 deletions(-)
-
---- a/arch/mips/ralink/timer.c
-+++ b/arch/mips/ralink/timer.c
-@@ -12,6 +12,8 @@
- #include <linux/timer.h>
- #include <linux/of_gpio.h>
- #include <linux/clk.h>
-+#include <linux/leds.h>
-+#include <linux/slab.h>
- 
- #include <asm/mach-ralink/ralink_regs.h>
- 
-@@ -23,16 +25,34 @@
- 
- #define TMR0CTL_ENABLE			BIT(7)
- #define TMR0CTL_MODE_PERIODIC		BIT(4)
--#define TMR0CTL_PRESCALER		1
-+#define TMR0CTL_PRESCALER		2
- #define TMR0CTL_PRESCALE_VAL		(0xf - TMR0CTL_PRESCALER)
- #define TMR0CTL_PRESCALE_DIV		(65536 / BIT(TMR0CTL_PRESCALER))
- 
-+struct rt_timer_gpio {
-+	struct list_head	list;
-+	struct led_classdev	*led;
-+};
-+
- struct rt_timer {
--	struct device	*dev;
--	void __iomem	*membase;
--	int		irq;
--	unsigned long	timer_freq;
--	unsigned long	timer_div;
-+	struct device		*dev;
-+	void __iomem		*membase;
-+	int			irq;
-+
-+	unsigned long		timer_freq;
-+	unsigned long		timer_div;
-+
-+	struct list_head	gpios;
-+	struct led_trigger	led_trigger;
-+	unsigned int		duty_cycle;
-+	unsigned int		duty;
-+
-+	unsigned int		fade;
-+	unsigned int		fade_min;
-+	unsigned int		fade_max;
-+	unsigned int		fade_speed;
-+	unsigned int		fade_dir;
-+	unsigned int		fade_count;
- };
- 
- static inline void rt_timer_w32(struct rt_timer *rt, u8 reg, u32 val)
-@@ -48,18 +68,46 @@ static inline u32 rt_timer_r32(struct rt
- static irqreturn_t rt_timer_irq(int irq, void *_rt)
- {
- 	struct rt_timer *rt =  (struct rt_timer *) _rt;
-+	struct rt_timer_gpio *gpio;
-+	unsigned int val;
- 
--	rt_timer_w32(rt, TIMER_REG_TMR0LOAD, rt->timer_freq / rt->timer_div);
-+	if (rt->fade && (rt->fade_count++ > rt->fade_speed)) {
-+		rt->fade_count = 0;
-+		if (rt->duty_cycle <= rt->fade_min)
-+			rt->fade_dir = 1;
-+		else if (rt->duty_cycle >= rt->fade_max)
-+			rt->fade_dir = 0;
-+
-+		if (rt->fade_dir)
-+			rt->duty_cycle += 1;
-+		else
-+			rt->duty_cycle -= 1;
-+
-+	}
-+
-+	val = rt->timer_freq / rt->timer_div;
-+	if (rt->duty)
-+		val *= rt->duty_cycle;
-+	else
-+		val *= (100 - rt->duty_cycle);
-+	val /= 100;
-+
-+	if (!list_empty(&rt->gpios))
-+		list_for_each_entry(gpio, &rt->gpios, list)
-+			led_set_brightness(gpio->led, !!rt->duty);
-+
-+	rt->duty = !rt->duty;
-+
-+	rt_timer_w32(rt, TIMER_REG_TMR0LOAD, val + 1);
- 	rt_timer_w32(rt, TIMER_REG_TMRSTAT, TMRSTAT_TMR0INT);
- 
- 	return IRQ_HANDLED;
- }
- 
--
- static int rt_timer_request(struct rt_timer *rt)
- {
--	int err = request_irq(rt->irq, rt_timer_irq, IRQF_DISABLED,
--						dev_name(rt->dev), rt);
-+	int err = devm_request_irq(rt->dev, rt->irq, rt_timer_irq,
-+					IRQF_DISABLED, dev_name(rt->dev), rt);
- 	if (err) {
- 		dev_err(rt->dev, "failed to request irq\n");
- 	} else {
-@@ -81,8 +129,6 @@ static int rt_timer_config(struct rt_tim
- 	else
- 		rt->timer_div = divisor;
- 
--	rt_timer_w32(rt, TIMER_REG_TMR0LOAD, rt->timer_freq / rt->timer_div);
--
- 	return 0;
- }
- 
-@@ -108,11 +154,128 @@ static void rt_timer_disable(struct rt_t
- 	rt_timer_w32(rt, TIMER_REG_TMR0CTL, t);
- }
- 
-+static ssize_t led_fade_show(struct device *dev,
-+				struct device_attribute *attr, char *buf)
-+{
-+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
-+	struct rt_timer *rt = container_of(led_cdev->trigger, struct rt_timer, led_trigger);
-+
-+	return sprintf(buf, "speed: %d, min: %d, max: %d\n", rt->fade_speed, rt->fade_min, rt->fade_max);
-+}
-+
-+static ssize_t led_fade_store(struct device *dev,
-+		struct device_attribute *attr, const char *buf, size_t size)
-+{
-+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
-+	struct rt_timer *rt = container_of(led_cdev->trigger, struct rt_timer, led_trigger);
-+	unsigned int speed = 0, min = 0, max = 0;
-+	ssize_t ret = -EINVAL;
-+
-+	ret = sscanf(buf, "%u %u %u", &speed, &min, &max);
-+
-+	if (ret == 3) {
-+		rt->fade_speed = speed;
-+		rt->fade_min = min;
-+		rt->fade_max = max;
-+		rt->fade = 1;
-+	} else {
-+		rt->fade = 0;
-+	}
-+
-+	return size;
-+}
-+
-+static DEVICE_ATTR(fade, 0644, led_fade_show, led_fade_store);
-+
-+static ssize_t led_duty_cycle_show(struct device *dev,
-+				struct device_attribute *attr, char *buf)
-+{
-+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
-+	struct rt_timer *rt = container_of(led_cdev->trigger, struct rt_timer, led_trigger);
-+
-+	return sprintf(buf, "%u\n", rt->duty_cycle);
-+}
-+
-+static ssize_t led_duty_cycle_store(struct device *dev,
-+		struct device_attribute *attr, const char *buf, size_t size)
-+{
-+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
-+	struct rt_timer *rt = container_of(led_cdev->trigger, struct rt_timer, led_trigger);
-+	unsigned long state;
-+	ssize_t ret = -EINVAL;
-+
-+	ret = kstrtoul(buf, 10, &state);
-+	if (ret)
-+		return ret;
-+
-+	if (state <= 100)
-+		rt->duty_cycle = state;
-+	else
-+		rt->duty_cycle = 100;
-+
-+	rt->fade = 0;
-+
-+	return size;
-+}
-+
-+static DEVICE_ATTR(duty_cycle, 0644, led_duty_cycle_show, led_duty_cycle_store);
-+
-+static void rt_timer_trig_activate(struct led_classdev *led_cdev)
-+{
-+	struct rt_timer *rt = container_of(led_cdev->trigger, struct rt_timer, led_trigger);
-+	struct rt_timer_gpio *gpio_data;
-+	int rc;
-+
-+	led_cdev->trigger_data = NULL;
-+	gpio_data = kzalloc(sizeof(*gpio_data), GFP_KERNEL);
-+	if (!gpio_data)
-+		return;
-+
-+	rc = device_create_file(led_cdev->dev, &dev_attr_duty_cycle);
-+	if (rc)
-+		goto err_gpio;
-+	rc = device_create_file(led_cdev->dev, &dev_attr_fade);
-+	if (rc)
-+		goto err_out_duty_cycle;
-+
-+	led_cdev->activated = true;
-+	led_cdev->trigger_data = gpio_data;
-+	gpio_data->led = led_cdev;
-+	list_add(&gpio_data->list, &rt->gpios);
-+	led_cdev->trigger_data = gpio_data;
-+	rt_timer_enable(rt);
-+	return;
-+
-+err_out_duty_cycle:
-+	device_remove_file(led_cdev->dev, &dev_attr_duty_cycle);
-+
-+err_gpio:
-+	kfree(gpio_data);
-+}
-+
-+static void rt_timer_trig_deactivate(struct led_classdev *led_cdev)
-+{
-+	struct rt_timer *rt = container_of(led_cdev->trigger, struct rt_timer, led_trigger);
-+	struct rt_timer_gpio *gpio_data = (struct rt_timer_gpio*) led_cdev->trigger_data;
-+
-+	if (led_cdev->activated) {
-+		device_remove_file(led_cdev->dev, &dev_attr_duty_cycle);
-+		device_remove_file(led_cdev->dev, &dev_attr_fade);
-+		led_cdev->activated = false;
-+	}
-+
-+	list_del(&gpio_data->list);
-+	rt_timer_disable(rt);
-+	led_set_brightness(led_cdev, LED_OFF);
-+}
-+
- static int rt_timer_probe(struct platform_device *pdev)
- {
- 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	const __be32 *divisor;
- 	struct rt_timer *rt;
- 	struct clk *clk;
-+	int ret;
- 
- 	if (!res) {
- 		dev_err(&pdev->dev, "no memory resource found\n");
-@@ -147,12 +310,29 @@ static int rt_timer_probe(struct platfor
- 	if (!rt->timer_freq)
- 		return -EINVAL;
- 
-+	rt->duty_cycle = 100;
- 	rt->dev = &pdev->dev;
- 	platform_set_drvdata(pdev, rt);
- 
--	rt_timer_request(rt);
--	rt_timer_config(rt, 2);
--	rt_timer_enable(rt);
-+	ret = rt_timer_request(rt);
-+	if (ret)
-+		return ret;
-+
-+	divisor = of_get_property(pdev->dev.of_node, "ralink,divisor", NULL);
-+	if (divisor)
-+		rt_timer_config(rt, be32_to_cpu(*divisor));
-+	else
-+		rt_timer_config(rt, 200);
-+
-+	rt->led_trigger.name = "pwmtimer",
-+	rt->led_trigger.activate = rt_timer_trig_activate,
-+	rt->led_trigger.deactivate = rt_timer_trig_deactivate,
-+
-+	ret = led_trigger_register(&rt->led_trigger);
-+	if (ret)
-+		return ret;
-+
-+	INIT_LIST_HEAD(&rt->gpios);
- 
- 	dev_info(&pdev->dev, "maximum frequncy is %luHz\n", rt->timer_freq);
- 
-@@ -163,6 +343,7 @@ static int rt_timer_remove(struct platfo
- {
- 	struct rt_timer *rt = platform_get_drvdata(pdev);
- 
-+	led_trigger_unregister(&rt->led_trigger);
- 	rt_timer_disable(rt);
- 	rt_timer_free(rt);
- 
-@@ -187,6 +368,6 @@ static struct platform_driver rt_timer_d
- 
- module_platform_driver(rt_timer_driver);
- 
--MODULE_DESCRIPTION("Ralink RT2880 timer");
-+MODULE_DESCRIPTION("Ralink RT2880 timer / pseudo pwm");
- MODULE_AUTHOR("John Crispin <blogic@openwrt.org");
- MODULE_LICENSE("GPL");