Get the spi_master's bus_num from DTS to make the spi_master's name static. So "mtdparts=spi.bus_num.chip_select:..." in cmdline can be used to asign mtd partions of spi flash.
Signed-off-by: Hou Zhiqiang <[email protected]> --- drivers/spi/spi-fsl-lib.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c index 0b75f26..f5f0307b 100644 --- a/drivers/spi/spi-fsl-lib.c +++ b/drivers/spi/spi-fsl-lib.c @@ -198,7 +198,7 @@ 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 = kzalloc(sizeof(*pinfo), GFP_KERNEL); if (!pinfo) @@ -207,8 +207,12 @@ int of_mpc8xxx_spi_probe(struct platform_device *ofdev) pdata = &pinfo->pdata; dev->platform_data = pdata; - /* Allocate bus num dynamically. */ - pdata->bus_num = -1; + ret = of_property_read_u32(np, "bus-num", &bus_num); + if (ret < 0) { + /* Allocate bus num dynamically. */ + bus_num = -1; + } + pdata->bus_num = bus_num; #ifdef CONFIG_FSL_SOC /* SPI controller is either clocked from QE or SoC clock. */ -- 1.8.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
