From: Sean Wang <sean.wang@mediatek.com>
To: Chaotian Jing <chaotian.jing@mediatek.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Ryder Lee <ryder.lee@mediatek.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
srv_heupstream@mediatek.com
Subject: Re: [PATCH 1/2] mmc: dt-bindings: add "bus-clk" for MT2712
Date: Sat, 29 Sep 2018 01:34:00 +0800 [thread overview]
Message-ID: <1538156040.30348.89.camel@mtkswgap22> (raw)
In-Reply-To: <1538134855-11198-2-git-send-email-chaotian.jing@mediatek.com>
On Fri, 2018-09-28 at 19:40 +0800, Chaotian Jing wrote:
> On MT2712 MSDC0/3, HCLK/bus-clk need gate/ungate together,
> or will hang when access MSDC register.
>
> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
> ---
> Documentation/devicetree/bindings/mmc/mtk-sd.txt | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> index f33467a..182299b 100644
> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> @@ -22,6 +22,7 @@ Required properties:
> "source" - source clock (required)
> "hclk" - HCLK which used for host (required)
> "source_cg" - independent source clock gate (required for MT2712)
> + "bus_clk" - bus clk used for internal register access(required for MT2712 MSDC0/3)
use a full name in the description such as changing "clk" to "clock" and
add an extra blank char prior to left parenthesis
> - pinctrl-names: should be "default", "state_uhs"
> - pinctrl-0: should contain default/high speed pin ctrl
> - pinctrl-1: should contain uhs mode pin ctrl
next prev parent reply other threads:[~2018-09-28 17:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-28 11:40 mmc: mediatek: add bus_clk control Chaotian Jing
2018-09-28 11:40 ` [PATCH 1/2] mmc: dt-bindings: add "bus-clk" for MT2712 Chaotian Jing
2018-09-28 17:34 ` Sean Wang [this message]
2018-09-29 2:37 ` Chaotian Jing
2018-09-28 11:40 ` [PATCH 2/2] mmc: mediatek: add bus_clk control Chaotian Jing
2018-09-28 17:28 ` Sean Wang
2018-09-29 2:39 ` Chaotian Jing
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