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authorRussell King <rmk+kernel@armlinux.org.uk>2019-02-21 18:59:58 +0300
committerMark Brown <broonie@kernel.org>2019-02-21 22:03:35 +0300
commitb89fefda7d4e3a649129584d855be233c7465264 (patch)
treedec8ed140af6e85ce12887d97d21a8f458990337 /drivers/spi
parentef070b4e4aa25bb5f8632ad196644026c11903bf (diff)
downloadlinux-b89fefda7d4e3a649129584d855be233c7465264.tar.xz
spi: spi-gpio: fix SPI_CS_HIGH capability
spi-gpio is capable of dealing with active-high chip-selects. Unfortunately, commit 4b859db2c606 ("spi: spi-gpio: add SPI_3WIRE support") broke this by setting master->mode_bits, which overrides the setting in the spi-bitbang code. Fix this. [Fixed a trivial conflict with SPI_3WIRE_HIZ support -- broonie] Fixes: 4b859db2c606 ("spi: spi-gpio: add SPI_3WIRE support") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-gpio.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index a4aee26028cd..53b35c56a557 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -428,7 +428,8 @@ static int spi_gpio_probe(struct platform_device *pdev)
return status;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
- master->mode_bits = SPI_3WIRE | SPI_3WIRE_HIZ | SPI_CPHA | SPI_CPOL;
+ master->mode_bits = SPI_3WIRE | SPI_3WIRE_HIZ | SPI_CPHA | SPI_CPOL |
+ SPI_CS_HIGH;
master->flags = master_flags;
master->bus_num = pdev->id;
/* The master needs to think there is a chipselect even if not connected */
@@ -455,7 +456,6 @@ static int spi_gpio_probe(struct platform_device *pdev)
spi_gpio->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_spec_txrx_word_mode3;
}
spi_gpio->bitbang.setup_transfer = spi_bitbang_setup_transfer;
- spi_gpio->bitbang.flags = SPI_CS_HIGH;
status = spi_bitbang_start(&spi_gpio->bitbang);
if (status)