linux-kernel - [PATCH] spi: spi-cadence: add support for chip select high

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Message-ID: <20200710045140.458-1-shreyas.joshi@biamp.com>
Date:   Fri, 10 Jul 2020 14:51:40 +1000
From:   Shreyas Joshi <shreyas.joshi@...mp.com>
To:     broonie@...nel.org, linux-spi@...r.kernel.org,
        shreyasjoshi15@...il.com
CC:     linux-kernel@...r.kernel.org,
        Shreyas Joshi <shreyas.joshi@...mp.com>
Subject: [PATCH] spi: spi-cadence: add support for chip select high

spi cadence driver should support spi-cs-high in mode bits
so that the peripherals that needs the chip select to be high active can
use it. Add the SPI-CS-HIGH flag in the supported mode bits.

Signed-off-by: Shreyas Joshi <shreyas.joshi@...mp.com>
---
 drivers/spi/spi-cadence.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c
index 82a0ee09cbe1..2b6b9c1ad9d0 100644
--- a/drivers/spi/spi-cadence.c
+++ b/drivers/spi/spi-cadence.c
@@ -556,7 +556,7 @@ static int cdns_spi_probe(struct platform_device *pdev)
 	master->unprepare_transfer_hardware = cdns_unprepare_transfer_hardware;
 	master->set_cs = cdns_spi_chipselect;
 	master->auto_runtime_pm = true;
-	master->mode_bits = SPI_CPOL | SPI_CPHA;
+	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
 	/* Set to default valid value */
 	master->max_speed_hz = clk_get_rate(xspi->ref_clk) / 4;
--
2.20.1