1 files changed, 83 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-4.4/001-revert_spi_device_tree_support.patch b/target/linux/ar71xx/patches-4.4/001-revert_spi_device_tree_support.patch
new file mode 100644
index 0000000000..9821eb7a85
--- /dev/null
+++ b/target/linux/ar71xx/patches-4.4/001-revert_spi_device_tree_support.patch
@@ -0,0 +1,83 @@
+--- a/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
++++ b/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
+@@ -16,4 +16,8 @@ struct ath79_spi_platform_data {
+ 	unsigned	num_chipselect;
+ };
+ 
++struct ath79_spi_controller_data {
++	unsigned	gpio;
++};
++
+ #endif /* _ATH79_SPI_PLATFORM_H */
+--- a/drivers/spi/spi-ath79.c
++++ b/drivers/spi/spi-ath79.c
+@@ -79,8 +79,10 @@ static void ath79_spi_chipselect(struct
+ 	}
+ 
+ 	if (spi->chip_select) {
++		struct ath79_spi_controller_data *cdata = spi->controller_data;
++
+ 		/* SPI is normally active-low */
+-		gpio_set_value(spi->cs_gpio, cs_high);
++		gpio_set_value(cdata->gpio, cs_high);
+ 	} else {
+ 		if (cs_high)
+ 			sp->ioc_base |= AR71XX_SPI_IOC_CS0;
+@@ -116,9 +118,10 @@ static void ath79_spi_disable(struct ath
+ static int ath79_spi_setup_cs(struct spi_device *spi)
+ {
+ 	struct ath79_spi *sp = ath79_spidev_to_sp(spi);
++	struct ath79_spi_controller_data *cdata = spi->controller_data;
+ 	int status;
+ 
+-	if (spi->chip_select && !gpio_is_valid(spi->cs_gpio))
++	if (spi->chip_select && (!cdata || !gpio_is_valid(cdata->gpio)))
+ 		return -EINVAL;
+ 
+ 	status = 0;
+@@ -131,7 +134,7 @@ static int ath79_spi_setup_cs(struct spi
+ 		else
+ 			flags |= GPIOF_INIT_HIGH;
+ 
+-		status = gpio_request_one(spi->cs_gpio, flags,
++		status = gpio_request_one(cdata->gpio, flags,
+ 					  dev_name(&spi->dev));
+ 	} else {
+ 		if (spi->mode & SPI_CS_HIGH)
+@@ -148,7 +151,8 @@ static int ath79_spi_setup_cs(struct spi
+ static void ath79_spi_cleanup_cs(struct spi_device *spi)
+ {
+ 	if (spi->chip_select) {
+-		gpio_free(spi->cs_gpio);
++		struct ath79_spi_controller_data *cdata = spi->controller_data;
++		gpio_free(cdata->gpio);
+ 	}
+ }
+ 
+@@ -220,7 +224,6 @@ static int ath79_spi_probe(struct platfo
+ 	}
+ 
+ 	sp = spi_master_get_devdata(master);
+-	master->dev.of_node = pdev->dev.of_node;
+ 	platform_set_drvdata(pdev, sp);
+ 
+ 	pdata = dev_get_platdata(&pdev->dev);
+@@ -300,18 +303,12 @@ static void ath79_spi_shutdown(struct pl
+ 	ath79_spi_remove(pdev);
+ }
+ 
+-static const struct of_device_id ath79_spi_of_match[] = {
+-	{ .compatible = "qca,ar7100-spi", },
+-	{ },
+-};
+-
+ static struct platform_driver ath79_spi_driver = {
+ 	.probe		= ath79_spi_probe,
+ 	.remove		= ath79_spi_remove,
+ 	.shutdown	= ath79_spi_shutdown,
+ 	.driver		= {
+ 		.name	= DRV_NAME,
+-		.of_match_table = ath79_spi_of_match,
+ 	},
+ };
+ module_platform_driver(ath79_spi_driver);