spi: dw-mid: fix FIFO size

The FIFO size is 40 accordingly to the specifications, but this means 0x40,
i.e. 64 bytes. This patch fixes the typo and enables FIFO size autodetection
for Intel MID devices.

Fixes: 7063c0d942a1 (spi/dw_spi: add DMA support)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 7281316a5ecba79203dc7351b280ab25cd5f2d11..a67d37c7e3c00f9518694f267aa75efd5c73398a 100644 (file)
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -271,7 +271,6 @@ int dw_spi_mid_init(struct dw_spi *dws)
        iounmap(clk_reg);
 
        dws->num_cs = 16;
-       dws->fifo_len = 40;     /* FIFO has 40 words buffer */
 
 #ifdef CONFIG_SPI_DW_MID_DMA
        dws->dma_priv = kzalloc(sizeof(struct mid_dma), GFP_KERNEL);