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Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0388-spi-gpio-Add-sck-idle-input-property.patch')
-rw-r--r--target/linux/bcm27xx/patches-6.1/950-0388-spi-gpio-Add-sck-idle-input-property.patch57
1 files changed, 0 insertions, 57 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0388-spi-gpio-Add-sck-idle-input-property.patch b/target/linux/bcm27xx/patches-6.1/950-0388-spi-gpio-Add-sck-idle-input-property.patch
deleted file mode 100644
index 461fd7f9e8..0000000000
--- a/target/linux/bcm27xx/patches-6.1/950-0388-spi-gpio-Add-sck-idle-input-property.patch
+++ /dev/null
@@ -1,57 +0,0 @@
-From d9061fef9a7109c32d7e4eb1d42e387b9781e92a Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Wed, 12 Jan 2022 08:23:28 +0000
-Subject: [PATCH] spi: gpio: Add sck-idle-input property
-
-The sck-idle-input property indicates that the spi-gpio driver should
-return the SCK line to an input when the chip select signals are
-inactive.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- drivers/spi/spi-gpio.c | 13 +++++++++++--
- 1 file changed, 11 insertions(+), 2 deletions(-)
-
---- a/drivers/spi/spi-gpio.c
-+++ b/drivers/spi/spi-gpio.c
-@@ -35,6 +35,7 @@ struct spi_gpio {
- struct gpio_desc *sck;
- struct gpio_desc *miso;
- struct gpio_desc *mosi;
-+ bool sck_idle_input;
- struct gpio_desc **cs_gpios;
- };
-
-@@ -225,8 +226,12 @@ static void spi_gpio_chipselect(struct s
- struct spi_gpio *spi_gpio = spi_to_spi_gpio(spi);
-
- /* set initial clock line level */
-- if (is_active)
-- gpiod_set_value_cansleep(spi_gpio->sck, spi->mode & SPI_CPOL);
-+ if (is_active) {
-+ if (spi_gpio->sck_idle_input)
-+ gpiod_direction_output(spi_gpio->sck, spi->mode & SPI_CPOL);
-+ else
-+ gpiod_set_value_cansleep(spi_gpio->sck, spi->mode & SPI_CPOL);
-+ }
-
- /* Drive chip select line, if we have one */
- if (spi_gpio->cs_gpios) {
-@@ -235,6 +240,9 @@ static void spi_gpio_chipselect(struct s
- /* SPI chip selects are normally active-low */
- gpiod_set_value_cansleep(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
- }
-+
-+ if (spi_gpio->sck_idle_input && !is_active)
-+ gpiod_direction_input(spi_gpio->sck);
- }
-
- static int spi_gpio_setup(struct spi_device *spi)
-@@ -323,6 +331,7 @@ static int spi_gpio_request(struct devic
- if (IS_ERR(spi_gpio->miso))
- return PTR_ERR(spi_gpio->miso);
-
-+ spi_gpio->sck_idle_input = device_property_read_bool(dev, "sck-idle-input");
- spi_gpio->sck = devm_gpiod_get(dev, "sck", GPIOD_OUT_LOW);
- return PTR_ERR_OR_ZERO(spi_gpio->sck);
- }