[PATCH v4 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip
From: Jerome Pouiller
Date: Wed Dec 23 2020 - 10:41:29 EST
From: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
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@xxxxxxxxxx>
---
include/linux/mmc/sdio_ids.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
index 12036619346c..734918fbf164 100644
--- a/include/linux/mmc/sdio_ids.h
+++ b/include/linux/mmc/sdio_ids.h
@@ -25,6 +25,13 @@
* 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
--
2.29.2