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

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Message-Id: <20210920161136.2398632-2-Jerome.Pouiller@silabs.com>
Date:   Mon, 20 Sep 2021 18:11:13 +0200
From:   Jerome Pouiller <Jerome.Pouiller@...abs.com>
To:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        Kalle Valo <kvalo@...eaurora.org>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "David S . Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        linux-mmc@...r.kernel.org,
        Pali Rohár <pali@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Jérôme Pouiller 
        <jerome.pouiller@...abs.com>
Subject: [PATCH v7 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

From: Jérôme Pouiller <jerome.pouiller@...abs.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@...abs.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