linux-kernel - [PATCH v2] wifi: mt76: Use of_reserved_mem_region_to

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20250709022201.2092329-1-robh@kernel.org>
Date: Tue,  8 Jul 2025 21:22:01 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Felix Fietkau <nbd@....name>,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	Ryder Lee <ryder.lee@...iatek.com>,
	Shayne Chen <shayne.chen@...iatek.com>,
	Sean Wang <sean.wang@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v2] wifi: mt76: Use of_reserved_mem_region_to_resource() for "memory-region"

Use the newly added of_reserved_mem_region_to_resource() function to
handle "memory-region" properties.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
v2:
  - Split to separate patch
---
 .../net/wireless/mediatek/mt76/mt7915/soc.c   | 21 +++++++------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/soc.c b/drivers/net/wireless/mediatek/mt76/mt7915/soc.c
index c823a7554a3a..5f19b506cc50 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/soc.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/soc.c
@@ -284,20 +284,15 @@ static int mt798x_wmac_coninfra_check(struct mt7915_dev *dev)
 static int mt798x_wmac_coninfra_setup(struct mt7915_dev *dev)
 {
 	struct device *pdev = dev->mt76.dev;
-	struct reserved_mem *rmem;
-	struct device_node *np;
+	struct resource res;
 	u32 val;
+	int ret;
 
-	np = of_parse_phandle(pdev->of_node, "memory-region", 0);
-	if (!np)
-		return -EINVAL;
-
-	rmem = of_reserved_mem_lookup(np);
-	of_node_put(np);
-	if (!rmem)
-		return -EINVAL;
+	ret = of_reserved_mem_region_to_resource(pdev->of_node, 0, &res);
+	if (ret)
+		return ret;
 
-	val = (rmem->base >> 16) & MT_TOP_MCU_EMI_BASE_MASK;
+	val = (res.start >> 16) & MT_TOP_MCU_EMI_BASE_MASK;
 
 	if (is_mt7986(&dev->mt76)) {
 		/* Set conninfra subsys PLL check */
@@ -318,8 +313,8 @@ static int mt798x_wmac_coninfra_setup(struct mt7915_dev *dev)
 			       MT_TOP_EFUSE_BASE_MASK, 0x11f20000 >> 16);
 	}
 
-	mt76_wr(dev, MT_INFRA_BUS_EMI_START, rmem->base);
-	mt76_wr(dev, MT_INFRA_BUS_EMI_END, rmem->size);
+	mt76_wr(dev, MT_INFRA_BUS_EMI_START, res.start);
+	mt76_wr(dev, MT_INFRA_BUS_EMI_END, resource_size(&res));
 
 	mt76_rr(dev, MT_CONN_INFRA_EFUSE);
 
-- 
2.47.2