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spi: dw: Drop default number of CS setting

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DW APB/AHB SSI core now supports the procedure automatically detecting the
number of native chip-select lines. Thus there is no longer point in
defaulting to four CS if the platform doesn't specify the real number
especially seeing the default number didn't correspond to any original DW
APB/AHB databook.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240424150657.9678-5-fancer.lancer@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Serge Semin 2024-04-24 18:06:45 +03:00 committed by Mark Brown
parent 33c85972d1
commit 98d75b9ef2
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 6 deletions
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8
drivers/spi/spi-dw-mmio.c
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@ -320,7 +320,6 @@ static int dw_spi_mmio_probe(struct platform_device *pdev)
struct resource *mem;
struct dw_spi *dws;
int ret;
int num_cs;
dwsmmio = devm_kzalloc(&pdev->dev, sizeof(struct dw_spi_mmio),
GFP_KERNEL);
@ -364,11 +363,8 @@ static int dw_spi_mmio_probe(struct platform_device *pdev)
&dws->reg_io_width))
dws->reg_io_width = 4;
num_cs = 4;
device_property_read_u32(&pdev->dev, "num-cs", &num_cs);
dws->num_cs = num_cs;
/* Rely on the auto-detection if no property specified */
device_property_read_u32(&pdev->dev, "num-cs", &dws->num_cs);
init_func = device_get_match_data(&pdev->dev);
if (init_func) {