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authorSascha Hauer <s.hauer@pengutronix.de>2020-03-05 14:55:46 +0300
committerMark Brown <broonie@kernel.org>2020-03-05 17:36:25 +0300
commit29d2daf2c33ce9b1038f3fcd55e16a788c00fc86 (patch)
tree3385c9dd66e654c96f62c067c2a35133993e5152 /drivers/spi/spi-fsl-dspi.c
parentc7a1a20e36faed2a298dd2965ab91c31dfc43f73 (diff)
downloadlinux-29d2daf2c33ce9b1038f3fcd55e16a788c00fc86.tar.xz
spi: spi-fsl-dspi: Make bus-num property optional
The SPI bus number is completely optional to Linux, so make the corresponding device tree property optional as well. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/r/20200305115546.31814-1-s.hauer@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-fsl-dspi.c')
-rw-r--r--drivers/spi/spi-fsl-dspi.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index c357c3247232..74dc0df518fa 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -1108,7 +1108,7 @@ static int dspi_probe(struct platform_device *pdev)
const struct regmap_config *regmap_config;
struct fsl_dspi_platform_data *pdata;
struct spi_controller *ctlr;
- int ret, cs_num, bus_num;
+ int ret, cs_num, bus_num = -1;
struct fsl_dspi *dspi;
struct resource *res;
void __iomem *base;
@@ -1145,11 +1145,7 @@ static int dspi_probe(struct platform_device *pdev)
}
ctlr->num_chipselect = cs_num;
- ret = of_property_read_u32(np, "bus-num", &bus_num);
- if (ret < 0) {
- dev_err(&pdev->dev, "can't get bus-num\n");
- goto out_ctlr_put;
- }
+ of_property_read_u32(np, "bus-num", &bus_num);
ctlr->bus_num = bus_num;
if (of_property_read_bool(np, "spi-slave"))