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X-IronPort-AV: E=Sophos;i="5.87,263,1631570400"; d="scan'208";a="20678140" Received: from vtuxmail01.tq-net.de ([10.115.0.20]) by mx1.tq-group.com with ESMTP; 25 Nov 2021 14:23:20 +0100 Received: from steina-w (unknown [10.123.49.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by vtuxmail01.tq-net.de (Postfix) with ESMTPSA id A84D3280065; Thu, 25 Nov 2021 14:23:20 +0100 (CET) Message-ID: Subject: Re: (EXT) Re: (EXT) Re: (EXT) Re: [PATCH v4 12/12] dt-bindings: serial: fsl-lpuart: Add i.MX8DXL compatible From: Alexander Stein To: Abel Vesa Cc: Rob Herring , Dong Aisheng , Shawn Guo , Sascha Hauer , Greg Kroah-Hartman , Fabio Estevam , Pengutronix Kernel Team , linux-i2c@vger.kernel.org, linux-serial@vger.kernel.org, NXP Linux Team , Linux Kernel Mailing List , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Date: Thu, 25 Nov 2021 14:23:20 +0100 In-Reply-To: References: <1636566415-22750-1-git-send-email-abel.vesa@nxp.com> <1636566415-22750-13-git-send-email-abel.vesa@nxp.com> <000f8f724ef9a8c2652e9cab0a5bb1f7768869c3.camel@ew.tq-group.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.36.5-0ubuntu1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Donnerstag, dem 25.11.2021 um 15:19 +0200 schrieb Abel Vesa: > On 21-11-23 08:30:17, Alexander Stein wrote: > > Am Montag, dem 22.11.2021 um 18:45 +0200 schrieb Abel Vesa: > > > On 21-11-19 08:17:11, Alexander Stein wrote: > > > > Am Donnerstag, dem 18.11.2021 um 19:04 -0600 schrieb Rob > > > > Herring: > > > > > On Wed, Nov 10, 2021 at 07:46:55PM +0200, Abel Vesa wrote: > > > > > > Add i.MX8DXL lpuart compatible to the bindings > > > > > > documentation. > > > > > > > > > > > > Signed-off-by: Abel Vesa < > > > > > > abel.vesa@nxp.com > > > > > > > > > > > > > > > > > > > > > > > > --- > > > > > > Documentation/devicetree/bindings/serial/fsl-lpuart.yaml | > > > > > > 4 > > > > > > ++++ > > > > > > 1 file changed, 4 insertions(+) > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/serial/fsl- > > > > > > lpuart.yaml b/Documentation/devicetree/bindings/serial/fsl- > > > > > > lpuart.yaml > > > > > > index dc1f0e07cbd4..fa8a602ccb22 100644 > > > > > > --- a/Documentation/devicetree/bindings/serial/fsl- > > > > > > lpuart.yaml > > > > > > +++ b/Documentation/devicetree/bindings/serial/fsl- > > > > > > lpuart.yaml > > > > > > @@ -27,6 +27,10 @@ properties: > > > > > > - items: > > > > > > - const: fsl,imx8qm-lpuart > > > > > > - const: fsl,imx8qxp-lpuart > > > > > > + - items: > > > > > > + - const: fsl,imx8dxl-lpuart > > > > > > + - const: fsl,imx8qxp-lpuart > > > > > > + - const: fsl,imx7ulp-lpuart > > > > > > > > > > I'm confused why 8dxl is compatible with 7ulp, but 8qm is > > > > > not? > > > > > From > > > > > the > > > > > driver, it looks like the difference is clocks. > > > > > > > > There is a difference between 8qm and 7ulp regarding the > > > > clocks. > > > > Are > > > > they still considered compatible? Depending on the answer [1] > > > > might > > > > not > > > > be the correct solution for earlycon regression on 8qm. > > > > > > > > > > In NXP's tree, they are not compatible. > > > > > > See here: > > > > > > https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi?h=lf-5.10.y#n9 > > > > > > > Well, commit > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4b844930f27bf7019c0bbd8cc575dde32e00ecc > > > > says otherwise. > > This might be true for earlycon only, because clocks should be > > setup > > already. > > > > Together with your other mail regarding the imx7ulp fixup, > > commit b4b844930f27bf7019c0bbd8cc575dde32e00ecc should just be > > reverted > > in order to get earlycon running again on imx8qm and imx8qxp, IMHO. > > > > I think you're right, the commit b4b844930f27bf7019c should be > reverted. > > You can send the revert yourself, if you want. If not, let me know. It's already there: https://lore.kernel.org/all/20211124073109.805088-1-alexander.stein@ew.tq-group.com/T/ Thanks, Alexander