[PATCH v2 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

Jerome Pouiller Jerome.Pouiller at silabs.com
Tue Oct 20 12:57:54 UTC 2020


From: Jérôme Pouiller <jerome.pouiller at silabs.com>

Add Silabs SDIO ID to sdio_ids.h.

Note that the values used by Silabs are uncommon. A driver cannot fully
rely on the SDIO PnP. It should also check if the device is declared in
the DT.

Signed-off-by: Jérôme Pouiller <jerome.pouiller at silabs.com>
---
 include/linux/mmc/sdio_ids.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
index 12036619346c..20a48162f7fc 100644
--- a/include/linux/mmc/sdio_ids.h
+++ b/include/linux/mmc/sdio_ids.h
@@ -25,6 +25,11 @@
  * Vendors and devices.  Sort key: vendor first, device next.
  */
 
+// Silabs does not use a reliable vendor ID. To avoid conflicts, the driver
+// won't probe the device if it is not also declared in the DT.
+#define SDIO_VENDOR_ID_SILABS			0x0000
+#define SDIO_DEVICE_ID_SILABS_WF200		0x1000
+
 #define SDIO_VENDOR_ID_STE			0x0020
 #define SDIO_DEVICE_ID_STE_CW1200		0x2280
 
-- 
2.28.0



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