diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0671-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0671-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0671-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch b/target/linux/bcm27xx/patches-5.4/950-0671-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch new file mode 100644 index 0000000000..fa01cd8532 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0671-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch @@ -0,0 +1,32 @@ +From 4c7f1a1c3d1bfd35b5a4089766ff0882d7b4ee0d Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Mon, 20 Apr 2020 13:41:10 +0100 +Subject: [PATCH] Revert "spi: spidev: Fix CS polarity if GPIO + descriptors are used" + +This reverts commit 83b2a8fe43bda0c11981ad6afa5dd0104d78be28. +--- + drivers/spi/spidev.c | 5 ----- + 1 file changed, 5 deletions(-) + +--- a/drivers/spi/spidev.c ++++ b/drivers/spi/spidev.c +@@ -394,7 +394,6 @@ spidev_ioctl(struct file *filp, unsigned + else + retval = get_user(tmp, (u32 __user *)arg); + if (retval == 0) { +- struct spi_controller *ctlr = spi->controller; + u32 save = spi->mode; + + if (tmp & ~SPI_MODE_MASK) { +@@ -402,10 +401,6 @@ spidev_ioctl(struct file *filp, unsigned + break; + } + +- if (ctlr->use_gpio_descriptors && ctlr->cs_gpiods && +- ctlr->cs_gpiods[spi->chip_select]) +- tmp |= SPI_CS_HIGH; +- + tmp |= spi->mode & ~SPI_MODE_MASK; + spi->mode = (u16)tmp; + retval = spi_setup(spi); |