diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0144-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0144-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0144-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch b/target/linux/bcm27xx/patches-4.19/950-0144-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch deleted file mode 100644 index 727624086a..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0144-spi-Make-GPIO-CSs-honour-the-SPI_NO_CS-flag.patch +++ /dev/null @@ -1,32 +0,0 @@ -From d7aa9d52b7f9b2d600f9b2479767c24d438a2c68 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Tue, 3 Jul 2018 14:23:47 +0100 -Subject: [PATCH] spi: Make GPIO CSs honour the SPI_NO_CS flag - -The SPI configuration state includes an SPI_NO_CS flag that disables -all CS line manipulation, for applications that want to manage their -own chip selects. However, this flag is ignored by the GPIO CS code -in the SPI framework. - -Correct this omission with a trivial patch. - -See: https://github.com/raspberrypi/linux/issues/2169 - -Signed-off-by: Phil Elwell <phil@raspberrypi.org> ---- - drivers/spi/spi.c | 4 +++- - 1 file changed, 3 insertions(+), 1 deletion(-) - ---- a/drivers/spi/spi.c -+++ b/drivers/spi/spi.c -@@ -733,7 +733,9 @@ static void spi_set_cs(struct spi_device - enable = !enable; - - if (gpio_is_valid(spi->cs_gpio)) { -- gpio_set_value_cansleep(spi->cs_gpio, !enable); -+ /* Honour the SPI_NO_CS flag */ -+ if (!(spi->mode & SPI_NO_CS)) -+ gpio_set_value_cansleep(spi->cs_gpio, !enable); - /* Some SPI masters need both GPIO CS & slave_select */ - if ((spi->controller->flags & SPI_MASTER_GPIO_SS) && - spi->controller->set_cs) |