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[80.56.215.227]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a7acab235fesm680407666b.36.2024.07.30.11.46.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 30 Jul 2024 11:46:34 -0700 (PDT) Message-ID: <35321e96-2cbf-47fa-bf0a-fe658f3751bb@broadcom.com> Date: Tue, 30 Jul 2024 20:46:32 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 4/5] wifi: brcmfmac: Add optional lpo clock enable support To: Jacobe Zang , 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 References: <20240730033053.4092132-1-jacobe.zang@wesion.com> <20240730033053.4092132-5-jacobe.zang@wesion.com> Content-Language: en-US From: Arend van Spriel Autocrypt: addr=arend.vanspriel@broadcom.com; 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charset="us-ascii"; Format="flowed" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On 7/30/2024 5:30 AM, Jacobe Zang wrote: > 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/drivers/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 > > #include > #include "debug.h" > @@ -70,6 +71,7 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type, > { > struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio; > struct device_node *root, *np = 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); > } > > + clk = 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; This if-statement should be the first check in brcmf_of_probe(). Can you include that change in your patch. Regards, Arend _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip