[Blackfin] arch: Encourage users to use the spidev character driver: Provide platform support

 - Enable kernel generic spidev driver for blackfin SPI ADC
 - spi_adc driver, document and test sample not synced

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 1795aab79064..b0c17afd4b76 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -517,6 +517,14 @@ static struct bfin5xx_spi_chip spi_wm8731_chip_info = {
         .bits_per_word = 16,
 };
 #endif
+
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+        .enable_dma = 0,
+        .bits_per_word = 8,
+};
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
         || defined(CONFIG_MTD_M25P80_MODULE)
@@ -634,6 +642,15 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
                 .mode = SPI_MODE_0,
         },
 #endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
+                .bus_num = 0,
+                .chip_select = 1,
+                .controller_data = &spidev_chip_info,
+        },
+#endif
 };
 
 /* SPI controller data */