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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2026-05-15 12:52:02 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2026-05-24 21:05:15 +0200 |
| commit | 3fcf9f334d272989b57acc7b94d4eac717206118 (patch) | |
| tree | b7e902f6bbc825c859bb767f655e16ffccdc0b46 /drivers/memory | |
| parent | a6954060adc9d956a99f909f46bf9fb0348c4fa2 (diff) | |
| download | linux-next-3fcf9f334d272989b57acc7b94d4eac717206118.tar.gz linux-next-3fcf9f334d272989b57acc7b94d4eac717206118.zip | |
memory: renesas-rpc-if: Fix duplicate device name on multi-instance platforms
On platforms with multiple xSPI instances, the driver fails to probe
additional instances due to duplicate sysfs entries:
[ 86.878242] sysfs: cannot create duplicate filename '/bus/platform/devices/rpc-if-spi'
This occurs because platform_device_alloc() uses pdev->id for the device
ID, which may be PLATFORM_DEVID_NONE (-1) for multiple instances, causing
all instances to attempt registration with the same name.
Fix this by using PLATFORM_DEVID_AUTO instead, which automatically assigns
unique IDs to each device instance, allowing multiple xSPI controllers to
coexist without naming conflicts.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://patch.msgid.link/20260515115202.1515577-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/renesas-rpc-if.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c index 0fb568456164..3755956ae906 100644 --- a/drivers/memory/renesas-rpc-if.c +++ b/drivers/memory/renesas-rpc-if.c @@ -1034,7 +1034,7 @@ static int rpcif_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(rpc->spi_clk), "cannot get enabled spi clk\n"); - vdev = platform_device_alloc(name, pdev->id); + vdev = platform_device_alloc(name, PLATFORM_DEVID_AUTO); if (!vdev) return -ENOMEM; vdev->dev.parent = dev; |