target/linux/ar71xx/patches-4.4/001-revert_spi_device_tree_support.patch

   1 --- a/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
   2 +++ b/arch/mips/include/asm/mach-ath79/ath79_spi_platform.h
   3 @@ -16,4 +16,8 @@ struct ath79_spi_platform_data {
   4         unsigned        num_chipselect;
   5  };
   6
   7 +struct ath79_spi_controller_data {
   8 +       unsigned        gpio;
   9 +};
  10 +
  11  #endif /* _ATH79_SPI_PLATFORM_H */
  12 --- a/drivers/spi/spi-ath79.c
  13 +++ b/drivers/spi/spi-ath79.c
  14 @@ -79,8 +79,10 @@ static void ath79_spi_chipselect(struct
  15         }
  16
  17         if (spi->chip_select) {
  18 +               struct ath79_spi_controller_data *cdata = spi->controller_data;
  19 +
  20                 /* SPI is normally active-low */
  21 -               gpio_set_value(spi->cs_gpio, cs_high);
  22 +               gpio_set_value(cdata->gpio, cs_high);
  23         } else {
  24                 if (cs_high)
  25                         sp->ioc_base |= AR71XX_SPI_IOC_CS0;
  26 @@ -116,9 +118,10 @@ static void ath79_spi_disable(struct ath
  27  static int ath79_spi_setup_cs(struct spi_device *spi)
  28  {
  29         struct ath79_spi *sp = ath79_spidev_to_sp(spi);
  30 +       struct ath79_spi_controller_data *cdata = spi->controller_data;
  31         int status;
  32
  33 -       if (spi->chip_select && !gpio_is_valid(spi->cs_gpio))
  34 +       if (spi->chip_select && (!cdata || !gpio_is_valid(cdata->gpio)))
  35                 return -EINVAL;
  36
  37         status = 0;
  38 @@ -131,7 +134,7 @@ static int ath79_spi_setup_cs(struct spi
  39                 else
  40                         flags |= GPIOF_INIT_HIGH;
  41
  42 -               status = gpio_request_one(spi->cs_gpio, flags,
  43 +               status = gpio_request_one(cdata->gpio, flags,
  44                                           dev_name(&spi->dev));
  45         } else {
  46                 if (spi->mode & SPI_CS_HIGH)
  47 @@ -148,7 +151,8 @@ static int ath79_spi_setup_cs(struct spi
  48  static void ath79_spi_cleanup_cs(struct spi_device *spi)
  49  {
  50         if (spi->chip_select) {
  51 -               gpio_free(spi->cs_gpio);
  52 +               struct ath79_spi_controller_data *cdata = spi->controller_data;
  53 +               gpio_free(cdata->gpio);
  54         }
  55  }
  56
  57 @@ -220,7 +224,6 @@ static int ath79_spi_probe(struct platfo
  58         }
  59
  60         sp = spi_master_get_devdata(master);
  61 -       master->dev.of_node = pdev->dev.of_node;
  62         platform_set_drvdata(pdev, sp);
  63
  64         pdata = dev_get_platdata(&pdev->dev);
  65 @@ -300,18 +303,12 @@ static void ath79_spi_shutdown(struct pl
  66         ath79_spi_remove(pdev);
  67  }
  68
  69 -static const struct of_device_id ath79_spi_of_match[] = {
  70 -       { .compatible = "qca,ar7100-spi", },
  71 -       { },
  72 -};
  73 -
  74  static struct platform_driver ath79_spi_driver = {
  75         .probe          = ath79_spi_probe,
  76         .remove         = ath79_spi_remove,
  77         .shutdown       = ath79_spi_shutdown,
  78         .driver         = {
  79                 .name   = DRV_NAME,
  80 -               .of_match_table = ath79_spi_of_match,
  81         },
  82  };
  83  module_platform_driver(ath79_spi_driver);