From: Andy Shevchenko Date: Wed, 17 Apr 2024 10:54:28 +0000 (+0300) Subject: spi: pxa2xx: Allow number of chip select pins to be read from property X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2c547549ac69380bb03b495c5ef3dbc03c9c7a48;p=linux.git spi: pxa2xx: Allow number of chip select pins to be read from property 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 Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20240417110334.2671228-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 2f60b2fde8d50..ab6fd55237cd1 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1357,6 +1357,7 @@ 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"); @@ -1395,8 +1396,11 @@ 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;