1 files changed, 0 insertions, 184 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0481-gpio-fsm-Show-state-info-in-sys-class-gpio-fsm.patch b/target/linux/bcm27xx/patches-5.10/950-0481-gpio-fsm-Show-state-info-in-sys-class-gpio-fsm.patch
deleted file mode 100644
index c930e0d6f8..0000000000
--- a/target/linux/bcm27xx/patches-5.10/950-0481-gpio-fsm-Show-state-info-in-sys-class-gpio-fsm.patch
+++ /dev/null
@@ -1,184 +0,0 @@
-From 1e50027d42006cbc42957b5053caf96ee52c7f8c Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Sat, 17 Oct 2020 15:42:54 +0100
-Subject: [PATCH] gpio-fsm: Show state info in /sys/class/gpio-fsm
-
-Add gpio-fsm sysfs entries under /sys/class/gpio-fsm. For each state
-machine show the current state, which state (if any) will be entered
-after a delay, and the current value of that delay.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- drivers/gpio/gpio-fsm.c | 112 ++++++++++++++++++++++++++++++++++++++--
- 1 file changed, 108 insertions(+), 4 deletions(-)
-
---- a/drivers/gpio/gpio-fsm.c
-+++ b/drivers/gpio/gpio-fsm.c
-@@ -20,6 +20,7 @@
- #include <linux/interrupt.h>
- #include <linux/module.h>
- #include <linux/platform_device.h>
-+#include <linux/sysfs.h>
- 
- #include <dt-bindings/gpio/gpio-fsm.h>
- 
-@@ -120,6 +121,7 @@ struct gpio_fsm {
- 	struct fsm_state *current_state;
- 	struct fsm_state *next_state;
- 	struct fsm_state *delay_target_state;
-+	unsigned int delay_jiffies;
- 	int delay_ms;
- 	unsigned int debug;
- 	bool shutting_down;
-@@ -364,9 +366,10 @@ static void gpio_fsm_enter_state(struct
- 			jiffies + msecs_to_jiffies(state->shutdown_ms);
- 
- 		if (gf->shutting_down) {
-+			gf->delay_jiffies = gf->shutdown_jiffies;
- 			gf->delay_target_state = state->shutdown_target;
- 			gf->delay_ms = state->shutdown_ms;
--			mod_timer(&gf->timer, gf->shutdown_jiffies);
-+			mod_timer(&gf->timer, gf->delay_jiffies);
- 		}
- 	}
- 
-@@ -421,9 +424,10 @@ static void gpio_fsm_enter_state(struct
- 	// 6. Schedule a timer callback if delay_target
- 	if (state->delay_target) {
- 		gf->delay_target_state = state->delay_target;
-+		gf->delay_jiffies = jiffies +
-+			msecs_to_jiffies(state->delay_ms);
- 		gf->delay_ms = state->delay_ms;
--		mod_timer(&gf->timer,
--			  jiffies + msecs_to_jiffies(state->delay_ms));
-+		mod_timer(&gf->timer, gf->delay_jiffies);
- 	}
- }
- 
-@@ -847,10 +851,81 @@ static int resolve_sym_to_state(struct g
- 	return 0;
- }
- 
-+
-+/*
-+ * /sys/class/gpio-fsm/<fsm-name>/
-+ *   /state ... the current state
-+ */
-+
-+static ssize_t state_show(struct device *dev,
-+			  struct device_attribute *attr, char *buf)
-+{
-+	const struct gpio_fsm *gf = dev_get_drvdata(dev);
-+
-+	return sprintf(buf, "%s\n", gf->current_state->name);
-+}
-+static DEVICE_ATTR_RO(state);
-+
-+static ssize_t delay_state_show(struct device *dev,
-+			  struct device_attribute *attr, char *buf)
-+{
-+	const struct gpio_fsm *gf = dev_get_drvdata(dev);
-+
-+	return sprintf(buf, "%s\n",
-+		       gf->delay_target_state ? gf->delay_target_state->name :
-+		       "-");
-+}
-+
-+static DEVICE_ATTR_RO(delay_state);
-+
-+static ssize_t delay_ms_show(struct device *dev,
-+			     struct device_attribute *attr, char *buf)
-+{
-+	const struct gpio_fsm *gf = dev_get_drvdata(dev);
-+	int jiffies_left;
-+
-+	jiffies_left = gf->delay_jiffies - jiffies;
-+	return sprintf(buf,
-+		       gf->delay_target_state ? "%u\n" : "-\n",
-+		       jiffies_to_msecs(jiffies_left));
-+}
-+static DEVICE_ATTR_RO(delay_ms);
-+
-+static struct attribute *gpio_fsm_attrs[] = {
-+	&dev_attr_state.attr,
-+	&dev_attr_delay_state.attr,
-+	&dev_attr_delay_ms.attr,
-+	NULL,
-+};
-+
-+static const struct attribute_group gpio_fsm_group = {
-+	.attrs = gpio_fsm_attrs,
-+	//.is_visible = gpio_is_visible,
-+};
-+
-+static const struct attribute_group *gpio_fsm_groups[] = {
-+	&gpio_fsm_group,
-+	NULL
-+};
-+
-+static struct attribute *gpio_fsm_class_attrs[] = {
-+	// There are no top-level attributes
-+	NULL,
-+};
-+ATTRIBUTE_GROUPS(gpio_fsm_class);
-+
-+static struct class gpio_fsm_class = {
-+	.name =		MODULE_NAME,
-+	.owner =	THIS_MODULE,
-+
-+	.class_groups = gpio_fsm_class_groups,
-+};
-+
- static int gpio_fsm_probe(struct platform_device *pdev)
- {
- 	struct input_gpio_state *inp_state;
- 	struct device *dev = &pdev->dev;
-+	struct device *sysfs_dev;
- 	struct device_node *np = dev->of_node;
- 	struct device_node *cp;
- 	struct gpio_fsm *gf;
-@@ -1029,6 +1104,13 @@ static int gpio_fsm_probe(struct platfor
- 
- 	platform_set_drvdata(pdev, gf);
- 
-+	sysfs_dev = device_create_with_groups(&gpio_fsm_class, dev,
-+					      MKDEV(0, 0), gf,
-+					      gpio_fsm_groups,
-+					      "%s", np->name);
-+	if (IS_ERR(sysfs_dev))
-+		dev_err(gf->dev, "Error creating sysfs entry\n");
-+
- 	if (gf->debug)
- 		dev_info(gf->dev, "Start -> %s\n", gf->start_state->name);
- 
-@@ -1097,7 +1179,29 @@ static struct platform_driver gpio_fsm_d
- 	.remove = gpio_fsm_remove,
- 	.shutdown = gpio_fsm_shutdown,
- };
--module_platform_driver(gpio_fsm_driver);
-+
-+static int gpio_fsm_init(void)
-+{
-+	int ret;
-+
-+	ret = class_register(&gpio_fsm_class);
-+	if (ret)
-+		return ret;
-+
-+	ret = platform_driver_register(&gpio_fsm_driver);
-+	if (ret)
-+		class_unregister(&gpio_fsm_class);
-+
-+	return ret;
-+}
-+module_init(gpio_fsm_init);
-+
-+static void gpio_fsm_exit(void)
-+{
-+	platform_driver_unregister(&gpio_fsm_driver);
-+	class_unregister(&gpio_fsm_class);
-+}
-+module_exit(gpio_fsm_exit);
- 
- MODULE_LICENSE("GPL");
- MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>");