From: Mark Rutland <mark.rutland@arm.com>
To: Chaotian Jing <chaotian.jing@mediatek.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Daniel Kurtz <djkurtz@chromium.org>,
linux-kernel@vger.kernel.org,
Lars-Peter Clausen <lars@metafoo.de>,
Howard Chen <ibanezchen@gmail.com>,
devicetree@vger.kernel.org, Pawel Moll <pawel.moll@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Sascha Hauer <s.hauer@pengutronix.de>,
Hans de Goede <hdegoede@redhat.com>,
Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-arm-kernel@lists.infradead.org,
srv_heupstream@mediatek.com,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
linux-mmc@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>,
Kumar Gala <galak@codeaurora.org>,
Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Subject: Re: [PATCH 2/4] mmc: dt-bindings: update Mediatek MMC bindings
Date: Tue, 13 Oct 2015 11:38:45 +0100 [thread overview]
Message-ID: <20151013103845.GA4189@leverpostej> (raw)
In-Reply-To: <1444729078-26585-3-git-send-email-chaotian.jing@mediatek.com>
On Tue, Oct 13, 2015 at 05:37:56PM +0800, Chaotian Jing wrote:
> Add 400Mhz clock source for HS400 mode
>
> Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
> ---
> Documentation/devicetree/bindings/mmc/mtk-sd.txt | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> index a1adfa4..745bee2 100644
> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> @@ -17,6 +17,11 @@ Required properties:
> - vmmc-supply: power to the Core
> - vqmmc-supply: power to the IO
>
> +Optional properties:
> +- clocks: 400mhz clock source for HS400
> +- clock-names: "400mhz"
Is that really what the input line is called?
> +- hs400-ds-delay: HS400 DS delay setting
What is the format of this? Where can I derive the correct value?
Mark.
> +
> Examples:
> mmc0: mmc@11230000 {
> compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc";
> @@ -24,9 +29,12 @@ mmc0: mmc@11230000 {
> interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>;
> vmmc-supply = <&mt6397_vemc_3v3_reg>;
> vqmmc-supply = <&mt6397_vio18_reg>;
> - clocks = <&pericfg CLK_PERI_MSDC30_0>, <&topckgen CLK_TOP_MSDC50_0_H_SEL>;
> - clock-names = "source", "hclk";
> + clocks = <&pericfg CLK_PERI_MSDC30_0>,
> + <&topckgen CLK_TOP_MSDC50_0_H_SEL>,
> + <&topckgen CLK_TOP_MSDCPLL_D2> ;
> + clock-names = "source", "hclk", "400mhz";
> pinctrl-names = "default", "state_uhs";
> pinctrl-0 = <&mmc0_pins_default>;
> pinctrl-1 = <&mmc0_pins_uhs>;
> + hs400-ds-delay = <0x14015>;
> };
> --
> 1.8.1.1.dirty
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
next prev parent reply other threads:[~2015-10-13 10:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-13 9:37 [PATCH 0/4] Add tune support of Mediatek MMC driver Chaotian Jing
2015-10-13 9:37 ` [PATCH 1/4] mmc: core: Add DT bindings for eMMC hardware reset support Chaotian Jing
2015-10-13 9:37 ` [PATCH 2/4] mmc: dt-bindings: update Mediatek MMC bindings Chaotian Jing
2015-10-13 10:38 ` Mark Rutland [this message]
2015-10-14 1:26 ` Chaotian Jing
2015-10-13 9:37 ` [PATCH 3/4] mmc: mediatek: Add tune support Chaotian Jing
[not found] ` <1444729078-26585-4-git-send-email-chaotian.jing-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-10-14 10:05 ` Ulf Hansson
2015-10-15 2:46 ` Chaotian Jing
2015-10-15 6:39 ` Sascha Hauer
2015-10-15 9:17 ` Ulf Hansson
2015-10-15 11:43 ` Chaotian Jing
2015-10-15 6:29 ` Sascha Hauer
2015-10-13 9:37 ` [PATCH 4/4] arm64: dts: mediatek:: Add HS200/HS400/SDR50/SDR104 support Chaotian Jing
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