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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.patch70
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