diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.14/451-gpio-74x164-improve-platform-device-support.patch')
-rw-r--r-- | target/linux/ar71xx/patches-3.14/451-gpio-74x164-improve-platform-device-support.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/target/linux/ar71xx/patches-3.14/451-gpio-74x164-improve-platform-device-support.patch b/target/linux/ar71xx/patches-3.14/451-gpio-74x164-improve-platform-device-support.patch deleted file mode 100644 index ed95f5e..0000000 --- a/target/linux/ar71xx/patches-3.14/451-gpio-74x164-improve-platform-device-support.patch +++ /dev/null @@ -1,70 +0,0 @@ ---- a/drivers/gpio/gpio-74x164.c -+++ b/drivers/gpio/gpio-74x164.c -@@ -107,8 +107,18 @@ static int gen_74x164_direction_output(s - static int gen_74x164_probe(struct spi_device *spi) - { - struct gen_74x164_chip *chip; -+ struct gen_74x164_chip_platform_data *pdata; -+ struct device_node *np; - int ret; - -+ pdata = spi->dev.platform_data; -+ np = spi->dev.of_node; -+ -+ if (!np && !pdata) { -+ dev_err(&spi->dev, "No configuration data available.\n"); -+ return -EINVAL; -+ } -+ - /* - * bits_per_word cannot be configured in platform data - */ -@@ -130,18 +140,27 @@ static int gen_74x164_probe(struct spi_d - chip->gpio_chip.set = gen_74x164_set_value; - chip->gpio_chip.base = -1; - -- if (of_property_read_u32(spi->dev.of_node, "registers-number", -- &chip->registers)) { -- dev_err(&spi->dev, -- "Missing registers-number property in the DT.\n"); -- return -EINVAL; -+ if (np) { -+ if (of_property_read_u32(spi->dev.of_node, "registers-number", &chip->registers)) { -+ dev_err(&spi->dev, "Missing registers-number property in the DT.\n"); -+ ret = -EINVAL; -+ goto exit_destroy; -+ } -+ } else if (pdata) { -+ chip->registers = pdata->num_registers; - } - -+ if (!chip->registers) -+ chip->registers = 1; -+ - chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers; - chip->buffer = devm_kzalloc(&spi->dev, chip->registers, GFP_KERNEL); - if (!chip->buffer) - return -ENOMEM; - -+ if (pdata && pdata->init_data) -+ memcpy(chip->buffer, pdata->init_data, chip->registers); -+ - chip->gpio_chip.can_sleep = true; - chip->gpio_chip.dev = &spi->dev; - chip->gpio_chip.owner = THIS_MODULE; ---- /dev/null -+++ b/include/linux/spi/74x164.h -@@ -0,0 +1,13 @@ -+#ifndef LINUX_SPI_74X164_H -+#define LINUX_SPI_74X164_H -+ -+struct gen_74x164_chip_platform_data { -+ /* number assigned to the first GPIO */ -+ unsigned base; -+ /* number of chained registers */ -+ unsigned num_registers; -+ /* address of a buffer containing initial data */ -+ u8 *init_data; -+}; -+ -+#endif |