From: Dong Aisheng <dongas86@gmail.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Bough Chen <haibo.chen@nxp.com>,
Aisheng Dong <aisheng.dong@nxp.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-serial@vger.kernel.org" <linux-serial@vger.kernel.org>,
Anson Huang <anson.huang@nxp.com>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
Fabio Estevam <festevam@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-pwm@vger.kernel.org" <linux-pwm@vger.kernel.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Rob Herring <robh+dt@kernel.org>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
dl-linux-imx <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Thierry Reding <thierry.reding@gmail.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-watchdog@vger.kernel.org" <linux-watchdog@vger.kernel.org>
Subject: Re: [PATCH 21/22] arm64: dts: imx8qxp: Remove i.MX7 compatible from USDHC
Date: Mon, 24 Aug 2020 18:30:33 +0800 [thread overview]
Message-ID: <CAA+hA=TD8bjmws7FXAP7zZR1dYgtLPzjFrhPg8XwZcpP2ef4ug@mail.gmail.com> (raw)
In-Reply-To: <20200824103237.GA26120@kozik-lap>
On Mon, Aug 24, 2020 at 6:32 PM Krzysztof Kozlowski <krzk@kernel.org> wrote:
>
> On Mon, Aug 24, 2020 at 10:31:31AM +0000, Bough Chen wrote:
> > > -----Original Message-----
> > > From: Dong Aisheng [mailto:dongas86@gmail.com]
> > > Sent: 2020年8月24日 17:45
> > > To: Krzysztof Kozlowski <krzk@kernel.org>
> > > Cc: Aisheng Dong <aisheng.dong@nxp.com>; devicetree@vger.kernel.org;
> > > linux-serial@vger.kernel.org; Anson Huang <anson.huang@nxp.com>;
> > > linux-gpio@vger.kernel.org; Fabio Estevam <festevam@gmail.com>; Linus
> > > Walleij <linus.walleij@linaro.org>; linux-pm@vger.kernel.org;
> > > linux-mmc@vger.kernel.org; linux-kernel@vger.kernel.org;
> > > linux-pwm@vger.kernel.org; Bartosz Golaszewski
> > > <bgolaszewski@baylibre.com>; Rob Herring <robh+dt@kernel.org>;
> > > linux-mtd@lists.infradead.org; dl-linux-imx <linux-imx@nxp.com>; Pengutronix
> > > Kernel Team <kernel@pengutronix.de>; Thierry Reding
> > > <thierry.reding@gmail.com>; Shawn Guo <shawnguo@kernel.org>; Sascha
> > > Hauer <s.hauer@pengutronix.de>; linux-arm-kernel@lists.infradead.org;
> > > linux-watchdog@vger.kernel.org; Bough Chen <haibo.chen@nxp.com>
> > > Subject: Re: [PATCH 21/22] arm64: dts: imx8qxp: Remove i.MX7 compatible
> > > from USDHC
> > >
> > > On Mon, Aug 24, 2020 at 5:15 PM Krzysztof Kozlowski <krzk@kernel.org>
> > > wrote:
> > > >
> > > > On Mon, Aug 24, 2020 at 09:00:19AM +0000, Aisheng Dong wrote:
> > > > > > From: Krzysztof Kozlowski <krzk@kernel.org>
> > > > > > Sent: Monday, August 24, 2020 12:16 AM
> > > > > >
> > > > > > The USDHC on i.MX 8QXP has its own compatible described in
> > > > > > bindings and used in the driver (with its own quirks). Remove
> > > > > > additional fsl,imx7d-usdhc compatible to fix dtbs_check warnings like:
> > > > > >
> > > > > > arch/arm64/boot/dts/freescale/imx8qxp-ai_ml.dt.yaml:
> > > mmc@5b010000:
> > > > > > compatible: ['fsl,imx8qxp-usdhc', 'fsl,imx7d-usdhc'] is too long
> > > > > > From schema:
> > > > > > /ocumentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml
> > > > > >
> > > > > > arch/arm64/boot/dts/freescale/imx8qxp-ai_ml.dt.yaml:
> > > mmc@5b010000:
> > > > > > compatible: Additional items are not allowed
> > > > > > ('fsl,imx7d-usdhc' was
> > > > > > unexpected)
> > > > > >
> > > > > > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> > > > >
> > > > > For Patch 19-22, I think we should fix dt binding doc.
> > > >
> > > > Are you sure that these USDHC controllers are compatible with i.MX 7D?
> > > > Could they really run with fsl,imx7d-usdhc compatible?
> > >
> > > AFAIK uSDHC on QXP is derived from the former platforms with adding a few
> > > more new features. e.g. HS400ES/CMDQ.
> > > Let me loop in uSDHC driver owner Haibo Chen to double confirm.
> >
> > Yes, usdhc of imx8qxp can work by using the compatible "fsl, imx7d-usdhc", but will not support HS400ES/Command Queue any more. Also imx8qxp support Auto CMD23, but imx7d not.
> > And imx8qxp need to re-config the clock rate after system PM, imx7d do not need to do this.
>
> Then we can leave the compatible in DTS and I will correct the device
> tree schema.
Haibo,
As Krzysztof is helping fix uSDHC binding doc in Patch 12/22,
please double check with IC for the whole uSDHC derive relationships on i.MX
and feedback to Krzysztof if anything is wrong.
Regards
Aisheng
>
> Best regards,
> Krzysztof
next prev parent reply other threads:[~2020-08-24 10:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-23 16:15 [PATCH 01/22] dt-bindings: gpio: fsl-imx-gpio: Add i.MX 8 compatibles Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 02/22] dt-bindings: gpio: fsl-imx-gpio: Add gpio-ranges property Krzysztof Kozlowski
2020-08-24 5:24 ` Sascha Hauer
2020-08-24 6:38 ` Krzysztof Kozlowski
2020-08-24 6:58 ` Sascha Hauer
2020-08-24 7:07 ` Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 03/22] dt-bindings: gpio: fsl-imx-gpio: Add parsing of hogs Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 04/22] dt-bindings: gpio: fsl-imx-gpio: Add power-domains Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 05/22] dt-bindings: perf: fsl-imx-ddr: Add i.MX 8M compatibles Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 06/22] dt-bindings: pwm: imx-pwm: " Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 07/22] dt-bindings: serial: fsl-imx-uart: " Krzysztof Kozlowski
2020-08-24 5:46 ` Sascha Hauer
2020-08-24 6:39 ` Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 08/22] dt-bindings: watchdog: fsl-imx-wdt: " Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 09/22] dt-bindings: mtd: gpmi-nand: " Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 10/22] dt-bindings: reset: fsl,imx7-src: " Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 11/22] dt-bindings: thermal: imx8mm-thermal: Add i.MX 8M Nano compatible Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 12/22] dt-bindings: mmc: fsl-imx-esdhc: Fix i.MX 8M compatible matching Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 13/22] dt-bindings: nvmem: imx-ocotp: Update i.MX 8M compatibles Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 14/22] dt-bindings: arm: fsl: Fix Toradex Colibri i.MX 8 binding Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 15/22] dt-bindings: arm: fsl: Add ZII Ultra boards binding Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 16/22] dt-bindings: interrupt-controller: fsl,irqsteer: Fix compatible matching Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 17/22] arm64: dts: imx8mq-evk: Add hog suffix to wl-reg-on Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 18/22] arm64: dts: imx8mq-zii-ultra: Add hog suffixes to GPIO hogs Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 19/22] arm64: dts: imx8mm: Remove i.MX7 compatible from USDHC Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 20/22] arm64: dts: imx8qxp: Remove i.MX7 compatible from UART Krzysztof Kozlowski
2020-08-23 16:15 ` [PATCH 21/22] arm64: dts: imx8qxp: Remove i.MX7 compatible from USDHC Krzysztof Kozlowski
2020-08-24 9:00 ` Aisheng Dong
2020-08-24 9:11 ` Krzysztof Kozlowski
2020-08-24 9:45 ` Dong Aisheng
2020-08-24 10:31 ` Bough Chen
2020-08-24 10:32 ` Krzysztof Kozlowski
2020-08-24 10:30 ` Dong Aisheng [this message]
2020-08-23 16:15 ` [PATCH 22/22] arm64: dts: imx8mp: Remove i.MX7 compatible from DDR PMU Krzysztof Kozlowski
2020-08-28 9:42 ` [PATCH 01/22] dt-bindings: gpio: fsl-imx-gpio: Add i.MX 8 compatibles Linus Walleij
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