[PATCH v2 2/3] spi: xilinx: Add QUAD support
From: Naga Sureshkumar Relli <hidden>
Date: 2016-05-30 09:47:01
Also in:
linux-spi
Subsystem:
spi subsystem, the rest · Maintainers:
Mark Brown, Linus Torvalds
This patch adds QUAD mode support to axi spi controller. updated supported mode bits to SPI_TX_QUAD and SPI_RX_QUAD. Signed-off-by: Naga Sureshkumar Relli <redacted> --- changes for v2 - none --- drivers/spi/spi-xilinx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index d903857..4467590 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c@@ -74,6 +74,7 @@ /* Number of data lines used to receive */ #define XSPI_RX_ONE_WIRE 1 +#define XSPI_RX_FOUR_WIRE 4 /** * struct xilinx_spi - This definition define spi driver instance
@@ -558,8 +559,10 @@ static int xilinx_spi_probe(struct platform_device *pdev) xspi->tx_fifo = xspi_fill_tx_fifo_32; xspi->rx_fifo = xspi_read_rx_fifo_32; } + } else if (xspi->rx_bus_width == XSPI_RX_FOUR_WIRE) { + master->mode_bits |= SPI_TX_QUAD | SPI_RX_QUAD; } else { - dev_err(&pdev->dev, "Dual/Quad Modes are not supported\n"); + dev_err(&pdev->dev, "Dual Mode not supported\n"); goto put_master; } xspi->cs_inactive = 0xffffffff;
--
2.1.1