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Diffstat (limited to 'recipes-kernel/linux/linux-at91-4.9.87/linux-4.9-at91_gpio_set_single_ended.patch')
-rw-r--r--recipes-kernel/linux/linux-at91-4.9.87/linux-4.9-at91_gpio_set_single_ended.patch228
1 files changed, 0 insertions, 228 deletions
diff --git a/recipes-kernel/linux/linux-at91-4.9.87/linux-4.9-at91_gpio_set_single_ended.patch b/recipes-kernel/linux/linux-at91-4.9.87/linux-4.9-at91_gpio_set_single_ended.patch
deleted file mode 100644
index 7e7c6c3..0000000
--- a/recipes-kernel/linux/linux-at91-4.9.87/linux-4.9-at91_gpio_set_single_ended.patch
+++ /dev/null
@@ -1,228 +0,0 @@
-diff -Naru linux-4.9.orig/drivers/gpio/gpiolib.c linux-4.9/drivers/gpio/gpiolib.c
---- linux-4.9.orig/drivers/gpio/gpiolib.c 2018-12-11 10:11:06.000000000 -0600
-+++ linux-4.9/drivers/gpio/gpiolib.c 2018-12-12 18:33:20.445762213 -0600
-@@ -478,6 +478,8 @@
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
-+ if (lflags & GPIOHANDLE_REQUEST_PULLUP)
-+ set_bit(FLAG_PULLUP, &desc->flags);
-
- /*
- * Lines have to be requested explicitly for input
-@@ -804,6 +806,8 @@
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
-+ if (lflags & GPIOHANDLE_REQUEST_PULLUP)
-+ set_bit(FLAG_PULLUP, &desc->flags);
-
- ret = gpiod_direction_input(desc);
- if (ret)
-@@ -953,6 +957,8 @@
- lineinfo.flags |= GPIOLINE_FLAG_OPEN_DRAIN;
- if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
- lineinfo.flags |= GPIOLINE_FLAG_OPEN_SOURCE;
-+ if (test_bit(FLAG_PULLUP, &desc->flags))
-+ lineinfo.flags |= GPIOLINE_FLAG_PULLUP;
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
-@@ -2090,6 +2096,7 @@
- clear_bit(FLAG_REQUESTED, &desc->flags);
- clear_bit(FLAG_OPEN_DRAIN, &desc->flags);
- clear_bit(FLAG_OPEN_SOURCE, &desc->flags);
-+ clear_bit(FLAG_PULLUP, &desc->flags);
- clear_bit(FLAG_IS_HOGGED, &desc->flags);
- ret = true;
- }
-@@ -2259,6 +2266,17 @@
- /* Emulate open source by not actively driving the line low */
- if (!value)
- return gpiod_direction_input(desc);
-+ }
-+ else if (test_bit(FLAG_PULLUP, &desc->flags)) {
-+ if (gc->set_single_ended) {
-+ ret = gc->set_single_ended(gc, gpio_chip_hwgpio(desc),
-+ LINE_MODE_PULLUP);
-+ if (!ret)
-+ goto set_output_value;
-+ }
-+ /* Emulate open source by not actively driving the line low */
-+ if (!value)
-+ return gpiod_direction_input(desc);
- } else {
- /* Make sure to disable open drain/source hardware, if any */
- if (gc->set_single_ended)
-@@ -3164,6 +3182,8 @@
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIO_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
-+ if (lflags & GPIO_PULLUP)
-+ set_bit(FLAG_PULLUP, &desc->flags);
-
- /* No particular flag request, return here... */
- if (!(dflags & GPIOD_FLAGS_BIT_DIR_SET)) {
-@@ -3266,6 +3286,7 @@
- struct gpio_desc *desc = ERR_PTR(-ENODEV);
- bool active_low = false;
- bool single_ended = false;
-+ bool pullup = false;
- int ret;
-
- if (!fwnode)
-@@ -3279,6 +3300,7 @@
- if (!IS_ERR(desc)) {
- active_low = flags & OF_GPIO_ACTIVE_LOW;
- single_ended = flags & OF_GPIO_SINGLE_ENDED;
-+ pullup = flags & OF_GPIO_PULLUP;
- }
- } else if (is_acpi_node(fwnode)) {
- struct acpi_gpio_info info;
-@@ -3304,7 +3326,8 @@
- else
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
- }
--
-+ if(pullup)
-+ set_bit(FLAG_PULLUP, &desc->flags);
- return desc;
- }
- EXPORT_SYMBOL_GPL(fwnode_get_named_gpiod);
-diff -Naru linux-4.9.orig/drivers/gpio/gpiolib.h linux-4.9/drivers/gpio/gpiolib.h
---- linux-4.9.orig/drivers/gpio/gpiolib.h 2018-12-11 12:10:06.937000782 -0600
-+++ linux-4.9/drivers/gpio/gpiolib.h 2018-12-11 12:11:30.324998313 -0600
-@@ -189,6 +189,7 @@
- #define FLAG_OPEN_SOURCE 8 /* Gpio is open source type */
- #define FLAG_USED_AS_IRQ 9 /* GPIO is connected to an IRQ */
- #define FLAG_IS_HOGGED 11 /* GPIO is hogged */
-+#define FLAG_PULLUP 12 /* GPIO is pulled up */
-
- /* Connection label */
- const char *label;
-diff -Naru linux-4.9.orig/drivers/gpio/gpiolib-of.c linux-4.9/drivers/gpio/gpiolib-of.c
---- linux-4.9.orig/drivers/gpio/gpiolib-of.c 2018-12-12 18:52:33.000000000 -0600
-+++ linux-4.9/drivers/gpio/gpiolib-of.c 2018-12-12 19:10:16.669696602 -0600
-@@ -152,6 +152,8 @@
- else
- *flags |= GPIO_OPEN_SOURCE;
- }
-+ if (of_flags & OF_GPIO_PULLUP)
-+ *flags |= GPIO_PULLUP;
-
- return desc;
- }
-diff -Naru linux-4.9.orig/drivers/pinctrl/pinctrl-at91.c linux-4.9/drivers/pinctrl/pinctrl-at91.c
---- linux-4.9.orig/drivers/pinctrl/pinctrl-at91.c 2018-12-11 10:11:15.000000000 -0600
-+++ linux-4.9/drivers/pinctrl/pinctrl-at91.c 2018-12-12 10:25:46.154628279 -0600
-@@ -1671,6 +1671,33 @@
- return -EINVAL;
- }
-
-+static int at91_gpio_set_single_ended(struct gpio_chip *chip, unsigned offset, enum single_ended_mode mode)
-+{
-+ struct at91_gpio_chip *at91_gpio = gpiochip_get_data(chip);
-+ void __iomem *pio = at91_gpio->regbase;
-+ unsigned mask = 1 << offset;
-+
-+ /* Other possibilities:
-+ * PIO_IFSCDR, PIO_IFSCER (Input Filter Slow Clock disable/enable register)
-+ * PIO_SCDR (Slow Clock Divider Debouncing register)
-+ */
-+ switch(mode) {
-+ case LINE_MODE_PULLUP:
-+ at91_mux_set_pullup(pio, mask, true);
-+ return 0;
-+ case LINE_MODE_OPEN_DRAIN:
-+ /* Open Drain is Multi Drive */
-+ at91_mux_set_multidrive(pio, mask, true);
-+ return 0;
-+ case LINE_MODE_PUSH_PULL:
-+ /* Not pull up or open drain */
-+ at91_mux_set_pullup(pio, mask, false);
-+ at91_mux_set_multidrive(pio, mask, false);
-+ return 0;
-+ default: return -EINVAL;
-+ }
-+}
-+
- /* This structure is replicated for each GPIO block allocated at probe time */
- static const struct gpio_chip at91_gpio_template = {
- .request = gpiochip_generic_request,
-@@ -1681,6 +1708,7 @@
- .direction_output = at91_gpio_direction_output,
- .set = at91_gpio_set,
- .set_multiple = at91_gpio_set_multiple,
-+ .set_single_ended = at91_gpio_set_single_ended,
- .dbg_show = at91_gpio_dbg_show,
- .can_sleep = false,
- .ngpio = MAX_NB_GPIO_PER_BANK,
-diff -Naru linux-4.9.orig/include/dt-bindings/gpio/gpio.h linux-4.9/include/dt-bindings/gpio/gpio.h
---- linux-4.9.orig/include/dt-bindings/gpio/gpio.h 2018-12-12 10:50:50.000000000 -0600
-+++ linux-4.9/include/dt-bindings/gpio/gpio.h 2018-12-13 14:00:29.459689020 -0600
-@@ -17,6 +17,7 @@
- #define GPIO_PUSH_PULL 0
- #define GPIO_SINGLE_ENDED 2
-
-+#define GPIO_PULLUP 4
- /*
- * Open Drain/Collector is the combination of single-ended active low,
- * Open Source/Emitter is the combination of single-ended active high.
-diff -Naru linux-4.9.orig/include/linux/gpio/driver.h linux-4.9/include/linux/gpio/driver.h
---- linux-4.9.orig/include/linux/gpio/driver.h 2018-12-11 10:11:20.000000000 -0600
-+++ linux-4.9/include/linux/gpio/driver.h 2018-12-11 17:47:56.188400715 -0600
-@@ -23,11 +23,13 @@
- * @LINE_MODE_PUSH_PULL: normal mode for a GPIO line, drive actively high/low
- * @LINE_MODE_OPEN_DRAIN: set line to be open drain
- * @LINE_MODE_OPEN_SOURCE: set line to be open source
-+ * @LINE_MODE_PULLUP: set line to be pullup
- */
- enum single_ended_mode {
- LINE_MODE_PUSH_PULL,
- LINE_MODE_OPEN_DRAIN,
- LINE_MODE_OPEN_SOURCE,
-+ LINE_MODE_PULLUP,
- };
-
- /**
-diff -Naru linux-4.9.orig/include/linux/gpio/machine.h linux-4.9/include/linux/gpio/machine.h
---- linux-4.9.orig/include/linux/gpio/machine.h 2018-12-12 10:50:50.000000000 -0600
-+++ linux-4.9/include/linux/gpio/machine.h 2018-12-12 18:25:12.265776665 -0600
-@@ -9,6 +9,7 @@
- GPIO_ACTIVE_LOW = (1 << 0),
- GPIO_OPEN_DRAIN = (1 << 1),
- GPIO_OPEN_SOURCE = (1 << 2),
-+ GPIO_PULLUP = (1 << 3),
- };
-
- /**
-diff -Naru linux-4.9.orig/include/linux/of_gpio.h linux-4.9/include/linux/of_gpio.h
---- linux-4.9.orig/include/linux/of_gpio.h 2018-12-12 18:40:24.109749670 -0600
-+++ linux-4.9/include/linux/of_gpio.h 2018-12-12 18:35:55.000000000 -0600
-@@ -30,6 +30,7 @@
- enum of_gpio_flags {
- OF_GPIO_ACTIVE_LOW = 0x1,
- OF_GPIO_SINGLE_ENDED = 0x2,
-+ OF_GPIO_PULLUP = 0x2,
- };
-
- #ifdef CONFIG_OF_GPIO
-diff -Naru linux-4.9.orig/include/uapi/linux/gpio.h linux-4.9/include/uapi/linux/gpio.h
---- linux-4.9.orig/include/uapi/linux/gpio.h 2018-12-11 10:11:21.000000000 -0600
-+++ linux-4.9/include/uapi/linux/gpio.h 2018-12-11 12:21:03.884981333 -0600
-@@ -32,6 +32,7 @@
- #define GPIOLINE_FLAG_ACTIVE_LOW (1UL << 2)
- #define GPIOLINE_FLAG_OPEN_DRAIN (1UL << 3)
- #define GPIOLINE_FLAG_OPEN_SOURCE (1UL << 4)
-+#define GPIOLINE_FLAG_PULLUP (1UL << 5)
-
- /**
- * struct gpioline_info - Information about a certain GPIO line
-@@ -61,6 +62,7 @@
- #define GPIOHANDLE_REQUEST_ACTIVE_LOW (1UL << 2)
- #define GPIOHANDLE_REQUEST_OPEN_DRAIN (1UL << 3)
- #define GPIOHANDLE_REQUEST_OPEN_SOURCE (1UL << 4)
-+#define GPIOHANDLE_REQUEST_PULLUP (1UL << 5)
-
- /**
- * struct gpiohandle_request - Information about a GPIO handle request
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 22:59:37 +0000