Messages in this thread Patch in this message | | | From | Wenyou Yang <> | Subject | [PATCH v5 01/16] spi/spi-atmel: fix master->num_chipselect wrongly set. | Date | Tue, 26 Feb 2013 14:47:54 +0800 |
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if the spi property "cs-gpios" is set as below:
cs-gpios = <0>, <&pioC 11 0>, <0>, <0>;
the master->num_chipselect will wrongly be set to 0, and the spi fail to probe.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Cc: spi-devel-general@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org --- drivers/spi/spi-atmel.c | 2 +- drivers/spi/spi.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index ab34497..5bf3786 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -944,7 +944,7 @@ static int atmel_spi_probe(struct platform_device *pdev) master->dev.of_node = pdev->dev.of_node; master->bus_num = pdev->id; - master->num_chipselect = master->dev.of_node ? 0 : 4; + master->num_chipselect = 4; master->setup = atmel_spi_setup; master->transfer = atmel_spi_transfer; master->cleanup = atmel_spi_cleanup; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 19ee901..d88cbef 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1070,7 +1070,7 @@ static int of_spi_register_master(struct spi_master *master) master->num_chipselect = max(nb, master->num_chipselect); if (nb < 1) - return 0; + nb = master->num_chipselect; cs = devm_kzalloc(&master->dev, sizeof(int) * master->num_chipselect, -- 1.7.9.5
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