Re: [PATCH] dt-bindings: nand: meson: fix controller clock

From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Liang Yang <liang.yang@amlogic.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
	<linux-mtd@lists.infradead.org>,
	Richard Weinberger <richard@nod.at>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Kevin Hilman <khilman@baylibre.com>,
	Jianxin Pan <jianxin.pan@amlogic.com>,
	Victor Wan <victor.wan@amlogic.com>,
	XianWei Zhao <xianwei.zhao@amlogic.com>,
	Kelvin Zhang <kelvin.zhang@amlogic.com>,
	BiChao Zheng <bichao.zheng@amlogic.com>,
	YongHui Yu <yonghui.yu@amlogic.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-amlogic@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Subject: Re: [PATCH] dt-bindings: nand: meson: fix controller clock
Date: Thu, 6 Jan 2022 09:12:09 +0100	[thread overview]
Message-ID: <20220106091209.6b97cf3c@xps13> (raw)
In-Reply-To: <20220106033130.37623-1-liang.yang@amlogic.com>

Hello,

liang.yang@amlogic.com wrote on Thu, 6 Jan 2022 11:31:30 +0800:

This patch should be in a series with "mtd: rawnand: meson: fix the
clock after discarding sd_emmc_c_clk" and possibly come first.

You miss a commit message which is _very_ important given the type of
change you propose.

> Change-Id: I1425b491d8b95061e1ce358ef33143433fc94d24

Change IDs have nothing to do here.

However a Fixes and a Signed-off-by are welcome.

You'll also need to Cc: Rob H. in your v2.

> ---
>  .../bindings/mtd/amlogic,meson-nand.txt        | 18 +++---------------
>  1 file changed, 3 insertions(+), 15 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
> index 5794ab1147c1..37f16fe4fe66 100644
> --- a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
> +++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
> @@ -14,11 +14,6 @@ Required properties:
>  - clock-names: Should contain the following:
>  	"core" - NFC module gate clock
>  	"device" - device clock from eMMC sub clock controller
> -	"rx" - rx clock phase
> -	"tx" - tx clock phase
> -
> -- amlogic,mmc-syscon	: Required for NAND clocks, it's shared with SD/eMMC
> -				controller port C
>  
>  Optional children nodes:
>  Children nodes represent the available nand chips.
> @@ -28,11 +23,6 @@ see Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindi
>  
>  Example demonstrate on AXG SoC:
>  
> -	sd_emmc_c_clkc: mmc@7000 {
> -		compatible = "amlogic,meson-axg-mmc-clkc", "syscon";
> -		reg = <0x0 0x7000 0x0 0x800>;
> -	};
> -
>  	nand-controller@7800 {
>  		compatible = "amlogic,meson-axg-nfc";
>  		reg = <0x0 0x7800 0x0 0x100>;
> @@ -41,11 +31,9 @@ Example demonstrate on AXG SoC:
>  		interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
>  
>  		clocks = <&clkc CLKID_SD_EMMC_C>,
> -			<&sd_emmc_c_clkc CLKID_MMC_DIV>,
> -			<&sd_emmc_c_clkc CLKID_MMC_PHASE_RX>,
> -			<&sd_emmc_c_clkc CLKID_MMC_PHASE_TX>;
> -		clock-names = "core", "device", "rx", "tx";
> -		amlogic,mmc-syscon = <&sd_emmc_c_clkc>;
> +			<&clkc CLKID_FCLK_DIV2>;
> +		clock-names = "core", "device";
> +		sd_emmc_c_clkc = <0xffe07000>;
>  
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&nand_pins>;

Thanks,
Miquèl

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