[PATCH v7 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

Jerome Pouiller
2021-09-20T16:12:07Z

From: Jérôme Pouiller <jerome.pouiller@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@silabs.com>
---
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 a85c9f0bd470..483692f3002a 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

--
2.33.0