[PATCH 4/5] spi: uniphier: Add SPI_LOOP to the capabilities

[Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>]

Add SPI_LOOP to the capabilities to support loopback mode.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
---
 drivers/spi/spi-uniphier.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c
index c4e3b96..caf0446 100644
--- a/drivers/spi/spi-uniphier.c
+++ b/drivers/spi/spi-uniphier.c
@@ -543,7 +543,8 @@ static int uniphier_spi_probe(struct platform_device *pdev)
 
 	master->max_speed_hz = DIV_ROUND_UP(clk_rate, SSI_MIN_CLK_DIVIDER);
 	master->min_speed_hz = DIV_ROUND_UP(clk_rate, SSI_MAX_CLK_DIVIDER);
-	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
+	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST |
+			    SPI_LOOP;
 	master->dev.of_node = pdev->dev.of_node;
 	master->bus_num = pdev->id;
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
-- 
2.7.4