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Tue, 30 Jul 2024 03:31:21 +0000 From: Jacobe Zang To: robh@kernel.org, krzk+dt@kernel.org, heiko@sntech.de, kvalo@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, conor+dt@kernel.org Cc: efectn@protonmail.com, dsimic@manjaro.org, jagan@edgeble.ai, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, arend@broadcom.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, megi@xff.cz, duoming@zju.edu.cn, bhelgaas@google.com, minipli@grsecurity.net, brcm80211@lists.linux.dev, brcm80211-dev-list.pdl@broadcom.com, nick@khadas.com, Jacobe Zang Subject: [PATCH v5 4/5] wifi: brcmfmac: Add optional lpo clock enable support Date: Tue, 30 Jul 2024 11:30:52 +0800 Message-Id: <20240730033053.4092132-5-jacobe.zang@wesion.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240730033053.4092132-1-jacobe.zang@wesion.com> References: <20240730033053.4092132-1-jacobe.zang@wesion.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SG2PR03CA0122.apcprd03.prod.outlook.com (2603:1096:4:91::26) To TYZPR03MB7001.apcprd03.prod.outlook.com (2603:1096:400:26a::14) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TYZPR03MB7001:EE_|TYSPR03MB7705:EE_ X-MS-Office365-Filtering-Correlation-Id: 410c6696-5990-4dfd-dd96-08dcb04814cc X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|52116014|7416014|38350700014; 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charset="utf-8" WiFi modules often require 32kHz clock to function. Add support to enable the clock to PCIe driver. Co-developed-by: Ondrej Jirman Signed-off-by: Ondrej Jirman Signed-off-by: Jacobe Zang --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/driver= s/net/wireless/broadcom/brcm80211/brcmfmac/of.c index e406e11481a62..6246e3fd7399f 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c @@ -6,6 +6,7 @@ #include #include #include +#include =20 #include #include "debug.h" @@ -70,6 +71,7 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_ty= pe bus_type, { struct brcmfmac_sdio_pd *sdio =3D &settings->bus.sdio; struct device_node *root, *np =3D dev->of_node; + struct clk *clk; const char *prop; int irq; int err; @@ -113,6 +115,12 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus= _type bus_type, of_node_put(root); } =20 + clk =3D devm_clk_get_optional_enabled(dev, "lpo"); + if (!IS_ERR_OR_NULL(clk)) { + brcmf_dbg(INFO, "enabling 32kHz clock\n"); + clk_set_rate(clk, 32768); + } + if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac")) return; =20 --=20 2.34.1