Re: (EXT) Re: (EXT) Re: [PATCH v4 12/12] dt-bindings: serial: fsl-lpuart: Add i.MX8DXL compatible
From: Abel Vesa <hidden>
Date: 2021-11-25 13:21:51
Also in:
linux-devicetree, linux-i2c, linux-serial, lkml
On 21-11-23 08:30:17, Alexander Stein wrote:
Am Montag, dem 22.11.2021 um 18:45 +0200 schrieb Abel Vesa:quoted
On 21-11-19 08:17:11, Alexander Stein wrote:quoted
Am Donnerstag, dem 18.11.2021 um 19:04 -0600 schrieb Rob Herring:quoted
On Wed, Nov 10, 2021 at 07:46:55PM +0200, Abel Vesa wrote:quoted
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-lpuartI'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#n9Well, 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.
Best regards, Alexander
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