Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v2 5/9] spi: pxa2xx: Allow number of chip select pins to be read from property | Date | Wed, 27 Mar 2024 21:29:24 +0200 |
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In some cases the number of the chip select pins might come from the device property. Allow driver to use it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/spi/spi-pxa2xx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index b01a18c89b6b..f4435c39d096 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1358,6 +1358,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) struct ssp_device *ssp = NULL; const void *match; bool is_lpss_priv; + u32 num_cs = 1; int status; is_lpss_priv = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv"); @@ -1394,8 +1395,11 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) pdata->dma_filter = pxa2xx_spi_idma_filter; } + /* Read number of chip select pins, if provided */ + device_property_read_u32(dev, "num-cs", &num_cs); + + pdata->num_chipselect = num_cs; pdata->is_target = device_property_read_bool(dev, "spi-slave"); - pdata->num_chipselect = 1; pdata->enable_dma = true; pdata->dma_burst_size = 1; -- 2.43.0.rc1.1.gbec44491f096
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