linux-kernel - Re: [PATCH v3 4/5] wifi: brcmfmac: Add optional lpo clock enable support

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

Message-ID:
 <TYZPR03MB7001AC28827A86338BF2B77380D22@TYZPR03MB7001.apcprd03.prod.outlook.com>
Date: Sun, 30 Jun 2024 09:09:50 +0000
From: Jacobe Zang <jacobe.zang@...ion.com>
To: Stefan Wahren <wahrenst@....net>, "robh@...nel.org" <robh@...nel.org>,
	"krzk+dt@...nel.org" <krzk+dt@...nel.org>, "heiko@...ech.de"
	<heiko@...ech.de>, "kvalo@...nel.org" <kvalo@...nel.org>,
	"davem@...emloft.net" <davem@...emloft.net>, "edumazet@...gle.com"
	<edumazet@...gle.com>, "kuba@...nel.org" <kuba@...nel.org>,
	"pabeni@...hat.com" <pabeni@...hat.com>, "conor+dt@...nel.org"
	<conor+dt@...nel.org>
CC: "efectn@...tonmail.com" <efectn@...tonmail.com>, "dsimic@...jaro.org"
	<dsimic@...jaro.org>, "jagan@...eble.ai" <jagan@...eble.ai>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-rockchip@...ts.infradead.org"
	<linux-rockchip@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "arend@...adcom.com" <arend@...adcom.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, "megi@....cz"
	<megi@....cz>, "duoming@....edu.cn" <duoming@....edu.cn>,
	"bhelgaas@...gle.com" <bhelgaas@...gle.com>, "minipli@...ecurity.net"
	<minipli@...ecurity.net>, "brcm80211@...ts.linux.dev"
	<brcm80211@...ts.linux.dev>, "brcm80211-dev-list.pdl@...adcom.com"
	<brcm80211-dev-list.pdl@...adcom.com>, Nick Xie <nick@...das.com>
Subject: Re: [PATCH v3 4/5] wifi: brcmfmac: Add optional lpo clock enable
 support

Hi Stefan,

>> WiFi modules often require 32kHz clock to function. Add support to
>> enable the clock to PCIe driver.
> the low power clock is independent from the host interface like PCIe. So
> the clock handling should move to the common code. Sorry, not i cannot
> give a good suggestion, what's the best place for this.

I think the clock is used by the PCIe device so enable it in this file. Also I checked
use of clock which in spi[0] or sdio[0] device was enabled similarly to this.

[0] https://lore.kernel.org/all/20210806081229.721731-4-claudiu.beznea@microchip.com/

---
Best Regards
Jacobe