From: Kunihiko Hayashi Date: Mon, 7 Aug 2023 00:16:21 +0000 (+0900) Subject: spi: dw: Set default value if reg-io-width isn't specified X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2ca03ecc9c8556e913aef6f381154721dec4e44b;p=linux.git spi: dw: Set default value if reg-io-width isn't specified According to the dt-bindings, the default value of reg-io-width is 4. However, the value becomes zero when reg-io-width isn't specified. Should set the actual value to dws->reg_io_width, considering it referenced. Signed-off-by: Kunihiko Hayashi Link: https://lore.kernel.org/r/20230807001621.196776-1-hayashi.kunihiko@socionext.com Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index 3a31ad74a5389..9e041a28ed472 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -369,7 +369,9 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) dws->max_freq = clk_get_rate(dwsmmio->clk); - device_property_read_u32(&pdev->dev, "reg-io-width", &dws->reg_io_width); + if (device_property_read_u32(&pdev->dev, "reg-io-width", + &dws->reg_io_width)) + dws->reg_io_width = 4; num_cs = 4;