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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:18:06 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:18:06 +0000
commit638a9e433ecd61e64761352dbec1fa4f5874c941 (patch)
treefdbff74a238d7a5a7d1cef071b7230bc064b9f25 /drivers/spi/spi-dw-mmio.c
parentReleasing progress-linux version 6.9.12-1~progress7.99u1. (diff)
downloadlinux-638a9e433ecd61e64761352dbec1fa4f5874c941.tar.xz
linux-638a9e433ecd61e64761352dbec1fa4f5874c941.zip
Merging upstream version 6.10.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/spi/spi-dw-mmio.c')
-rw-r--r--drivers/spi/spi-dw-mmio.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index cc74cbe034..819907e332 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -320,7 +320,11 @@ static int dw_spi_mmio_probe(struct platform_device *pdev)
struct resource *mem;
struct dw_spi *dws;
int ret;
- int num_cs;
+
+ if (device_property_read_bool(&pdev->dev, "spi-slave")) {
+ dev_warn(&pdev->dev, "spi-slave is not yet supported\n");
+ return -ENODEV;
+ }
dwsmmio = devm_kzalloc(&pdev->dev, sizeof(struct dw_spi_mmio),
GFP_KERNEL);
@@ -364,11 +368,8 @@ 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) {