* [PATCH] spi: spi-fsl-spi: Add OF bus-num property
@ 2016-12-19 12:09 Joakim Tjernlund
[not found] ` <20161219120942.29022-1-joakim.tjernlund-27rvihrghlNWk0Htik3J/w@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Joakim Tjernlund @ 2016-12-19 12:09 UTC (permalink / raw)
To: linux-spi-u79uwXL29TY76Z2rM5mHXA; +Cc: Joakim Tjernlund
Allow OF to specify bus enumeration. This uses the same property
as spi-fsl-dspi.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund-27rvihrghlNWk0Htik3J/w@public.gmane.org>
---
drivers/spi/spi-fsl-lib.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c
index cb35d2f..3b06513 100644
--- a/drivers/spi/spi-fsl-lib.c
+++ b/drivers/spi/spi-fsl-lib.c
@@ -140,7 +140,7 @@ int of_mpc8xxx_spi_probe(struct platform_device *ofdev)
struct mpc8xxx_spi_probe_info *pinfo;
struct fsl_spi_platform_data *pdata;
const void *prop;
- int ret = -ENOMEM;
+ int ret = -ENOMEM, bus_num;
pinfo = devm_kzalloc(&ofdev->dev, sizeof(*pinfo), GFP_KERNEL);
if (!pinfo)
@@ -151,7 +151,9 @@ int of_mpc8xxx_spi_probe(struct platform_device *ofdev)
/* Allocate bus num dynamically. */
pdata->bus_num = -1;
-
+ ret = of_property_read_u32(np, "bus-num", &bus_num);
+ if (ret >= 0)
+ pdata->bus_num = bus_num;
#ifdef CONFIG_FSL_SOC
/* SPI controller is either clocked from QE or SoC clock. */
pdata->sysclk = get_brgfreq();
--
2.10.2
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2016-12-19 12:09 [PATCH] spi: spi-fsl-spi: Add OF bus-num property Joakim Tjernlund
[not found] ` <20161219120942.29022-1-joakim.tjernlund-27rvihrghlNWk0Htik3J/w@public.gmane.org>
2017-01-13 15:41 ` Joakim Tjernlund
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