From: Florian Fainelli <f.fainelli@gmail.com>
To: Kamal Dasu <kdasu.kdev@gmail.com>,
ulf.hansson@linaro.org, robh+dt@kernel.org, krzk+dt@kernel.org,
alcooperx@gmail.com
Cc: f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com,
adrian.hunter@intel.com, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/5] mmc: sdhci-brcmstb: Enable Clock Gating to save power
Date: Fri, 22 Apr 2022 10:14:58 -0700 [thread overview]
Message-ID: <39f813e9-13d8-db15-1fcb-a93b27e46798@gmail.com> (raw)
In-Reply-To: <20220421182803.6495-4-kdasu.kdev@gmail.com>
On 4/21/22 11:28, Kamal Dasu wrote:
> From: Al Cooper <alcooperx@gmail.com>
>
> Enabling this feature will allow the controller to stop the bus
> clock when the bus is idle. The feature is not part of the standard
> and is unique to newer Arasan cores and is enabled with a bit in a
> vendor specific register. This feature will only be enabled for
> non-removable devices because they don't switch the voltage and
> clock gating breaks SD Card volatge switching.
>
> Signed-off-by: Al Cooper <alcooperx@gmail.com>
> Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian
next prev parent reply other threads:[~2022-04-22 17:25 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-21 18:27 [PATCH 0/5] mmc: sdhci-brcmstb: host controller clock enhancements Kamal Dasu
2022-04-21 18:27 ` [PATCH 1/5] mmc: sdhci-brcmstb: "mmc1: Internal clock never stabilised." seen on 72113 Kamal Dasu
2022-04-22 17:14 ` Florian Fainelli
2022-04-27 4:41 ` Adrian Hunter
2022-04-21 18:28 ` [PATCH 2/5] mmc: sdhci-brcmstb: Re-organize flags Kamal Dasu
2022-04-22 17:14 ` Florian Fainelli
2022-04-27 6:43 ` Adrian Hunter
2022-04-21 18:28 ` [PATCH 3/5] mmc: sdhci-brcmstb: Enable Clock Gating to save power Kamal Dasu
2022-04-22 17:14 ` Florian Fainelli [this message]
2022-04-27 6:44 ` Adrian Hunter
2022-04-21 18:28 ` [PATCH 4/5] dt-bindings: mmc: Add Broadcom optional sdio_freq clock Kamal Dasu
2022-04-22 17:07 ` Krzysztof Kozlowski
2022-04-27 15:40 ` Kamal Dasu
2022-04-21 18:28 ` [PATCH 5/5] mmc: sdhci-brcmstb: Add ability to increase max clock rate for 72116b0 Kamal Dasu
2022-04-27 6:45 ` Adrian Hunter
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