netdev - [PATCH] net: wwan: Add WWAN sahara port type

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Message-ID:
 <KL1PR06MB6133B5403AA55BC79C13FF3B935B2@KL1PR06MB6133.apcprd06.prod.outlook.com>
Date: Thu, 14 Nov 2024 08:45:08 +0000
From: Jerry Meng(蒙杰) <jerry.meng@...ctel.com>
To: "loic.poulain@...aro.org" <loic.poulain@...aro.org>,
	"ryazanov.s.a@...il.com" <ryazanov.s.a@...il.com>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] net: wwan: Add WWAN sahara port type

Add a Sahara protocol-based interface for downloading ramdump
from Qualcomm modems in SBL ramdump mode.

Signed-off-by: Jerry Meng <jerry.meng@...ctel.com>
---
 drivers/net/wwan/mhi_wwan_ctrl.c | 3 ++-
 drivers/net/wwan/wwan_core.c     | 4 ++++
 include/linux/wwan.h             | 2 ++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wwan/mhi_wwan_ctrl.c b/drivers/net/wwan/mhi_wwan_ctrl.c
index e9f979d2d..2c6a754af 100644
--- a/drivers/net/wwan/mhi_wwan_ctrl.c
+++ b/drivers/net/wwan/mhi_wwan_ctrl.c
@@ -263,7 +263,8 @@ static const struct mhi_device_id mhi_wwan_ctrl_match_table[] = {
 	{ .chan = "QMI", .driver_data = WWAN_PORT_QMI },
 	{ .chan = "DIAG", .driver_data = WWAN_PORT_QCDM },
 	{ .chan = "FIREHOSE", .driver_data = WWAN_PORT_FIREHOSE },
-	{},
+        { .chan = "SAHARA", .driver_data = WWAN_PORT_SAHARA},
+        {},
 };
 MODULE_DEVICE_TABLE(mhi, mhi_wwan_ctrl_match_table);
 
diff --git a/drivers/net/wwan/wwan_core.c b/drivers/net/wwan/wwan_core.c
index a51e27559..d2fe603e6 100644
--- a/drivers/net/wwan/wwan_core.c
+++ b/drivers/net/wwan/wwan_core.c
@@ -342,6 +342,10 @@ static const struct {
 		.name = "MIPC",
 		.devsuf = "mipc",
 	},
+        [WWAN_PORT_SAHARA] = {
+                .name = "SAHARA",
+                .devsuf = "sahara",
+        },
 };
 
 static ssize_t type_show(struct device *dev, struct device_attribute *attr,
diff --git a/include/linux/wwan.h b/include/linux/wwan.h
index 79c781875..b0ea276f2 100644
--- a/include/linux/wwan.h
+++ b/include/linux/wwan.h
@@ -19,6 +19,7 @@
  * @WWAN_PORT_FASTBOOT: Fastboot protocol control
  * @WWAN_PORT_ADB: ADB protocol control
  * @WWAN_PORT_MIPC: MTK MIPC diagnostic interface
+ * @WWAN_PORT_SAHARA: Sahara protocol-based interface for downloading ramdump from Qualcomm modems
  *
  * @WWAN_PORT_MAX: Highest supported port types
  * @WWAN_PORT_UNKNOWN: Special value to indicate an unknown port type
@@ -34,6 +35,7 @@ enum wwan_port_type {
 	WWAN_PORT_FASTBOOT,
 	WWAN_PORT_ADB,
 	WWAN_PORT_MIPC,
+	WWAN_PORT_SAHARA,
 
 	/* Add new port types above this line */
 
-- 
2.25.1


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