diff mbox series

[v3,01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

Message ID 20201104155207.128076-2-Jerome.Pouiller@silabs.com
State Superseded
Headers show
Series [v3,01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip | expand

Commit Message

Jérôme Pouiller Nov. 4, 2020, 3:51 p.m. UTC
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 | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Kalle Valo Dec. 22, 2020, 3:04 p.m. UTC | #1
Jerome Pouiller <Jerome.Pouiller@silabs.com> writes:

> 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 | 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.

C++ comments?
diff mbox series

Patch

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