Re: [PATCH 01/12] mmc: dt-bindings: update Mediatek MMC bindings

Rob Herring
2017-09-13T14:10:26Z

On Tue, Sep 12, 2017 at 05:07:41PM +0800, Chaotian Jing wrote:
> Change the comptiable for support of multi-platform
> Add description for reg
> Add description for source_cg
> Add description for mediatek,latch-ck

This is at least the 3rd patch with exactly the same vague subject.
Please make the subject somewhat unique.

>
> Signed-off-by: Chaotian Jing <chaotian.jing-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
> ---
> Documentation/devicetree/bindings/mmc/mtk-sd.txt | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> index 4182ea3..405cd06 100644
> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
> @@ -7,10 +7,15 @@ This file documents differences between the core properties in mmc.txt
> and the properties used by the msdc driver.
>
> Required properties:
> -- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc"
> +- compatible: value should be either of the following.
> + "mediatek,mt8135-mmc": for mmc host ip compatible with mt8135
> + "mediatek,mt8173-mmc": for mmc host ip compatible with mt8173
> + "mediatek,mt2701-mmc": for mmc host ip compatible with mt2701
> + "mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
> +- reg: physical base address of the controller and length
> - interrupts: Should contain MSDC interrupt number
> -- clocks: MSDC source clock, HCLK
> -- clock-names: "source", "hclk"
> +- clocks: MSDC source clock, HCLK, source_cg
> +- clock-names: "source", "hclk", "source_cg"

All chips support source_cg? That's not backwards compatible for
existing compatible strings if the driver requires it.

> - pinctrl-names: should be "default", "state_uhs"
> - pinctrl-0: should contain default/high speed pin ctrl
> - pinctrl-1: should contain uhs mode pin ctrl
> @@ -30,6 +35,8 @@ Optional properties:
> - mediatek,hs400-cmd-resp-sel-rising: HS400 command response sample selection
> If present,HS400 command responses are sampled on rising edges.
> If not present,HS400 command responses are sampled on falling edges.
> +- mediatek,latch-ck: Some projects do not support enhance_rx, need set correct latch-ck to avoid data crc

What's a project?

> + error caused by stop clock(fifo full)
>
> Examples:
> mmc0: mmc@11230000 {
> --
> 1.8.1.1.dirty
>
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