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Date: Thu, 28 Oct 2021 11:17:14 -0700 From: Tim Harvey <tharvey@...eworks.com> To: Richard Zhu <hongxing.zhu@....com> Cc: Lucas Stach <l.stach@...gutronix.de>, Marcel Ziswiler <marcel.ziswiler@...adex.com>, Kishon Vijay Abraham I <kishon@...com>, vkoul@...nel.org, Rob Herring <robh@...nel.org>, galak@...nel.crashing.org, Shawn Guo <shawnguo@...nel.org>, linux-phy@...ts.infradead.org, Device Tree Mailing List <devicetree@...r.kernel.org>, Linux ARM Mailing List <linux-arm-kernel@...ts.infradead.org>, open list <linux-kernel@...r.kernel.org>, Sascha Hauer <kernel@...gutronix.de>, NXP Linux Team <linux-imx@....com> Subject: Re: [PATCH v4 0/8] add the imx8m pcie phy driver and imx8mm pcie support On Thu, Oct 28, 2021 at 12:52 AM Richard Zhu <hongxing.zhu@....com> wrote: > > Refer to the discussion [1] when try to enable i.MX8MM PCIe support, > one standalone PCIe PHY driver should be seperated from i.MX PCIe > driver when enable i.MX8MM PCIe support. > > This patch-set adds the standalone PCIe PHY driver suport[1-5], and i.MX8MM > PCIe support[6-8] to have whole view to review this patch-set. > > The PCIe works on i.MX8MM EVK board based the the blkctrl power driver > [2] and this patch-set. > > [1] https://patchwork.ozlabs.org/project/linux-pci/patch/20210510141509.929120-3-l.stach@pengutronix.de/ > [2] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210910202640.980366-1-l.stach@pengutronix.de/ > > Main changes v3 --> v4: > - Update the yaml to fix syntax error, add maxitems and drop description of phy > - Correct the clock name in PHY DT node. > - Squash the EVK board relalted dts changes into one patch, and drop the > useless dummy clock and gpio suffix in DT nodes. > - Add board specific de-emphasis parameters as DT properties. Thus each board > can specify its actual de-emphasis values. > - Update the commit log of PHY driver. > - Remove the useless codes from PCIe driver, since they are moved to PHY driver > - After the discussion and verification of the CLKREQ# configurations with Tim, > agree to add an optional boolean property "fsl,clkreq-unsupported", indicates > the CLKREQ# signal is hooked or not in HW designs. > - Add "Tested-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>" tag, since > Marcel help to test the v3 patch-set. > > Main changes v2 --> v3: > - Regarding Lucas' comments. > - to have a whole view to review the patches, send out the i.MX8MM PCIe support too. > - move the PHY related bits manipulations of the GPR/SRC to standalone PHY driver. > - split the dts changes to SOC and board DT, and use the enum instead of raw value. > - update the license of the dt-binding header file. > > Changes v1 --> v2: > - Update the license of the dt-binding header file to make the license > compatible with dts files. > - Fix the dt_binding_check errors. > > Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 6 +++ > Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml | 95 +++++++++++++++++++++++++++++++++ > arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 55 +++++++++++++++++++ > arch/arm64/boot/dts/freescale/imx8mm.dtsi | 46 +++++++++++++++- > drivers/pci/controller/dwc/pci-imx6.c | 73 ++++++++++++++++++++++--- > drivers/phy/freescale/Kconfig | 9 ++++ > drivers/phy/freescale/Makefile | 1 + > drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 234 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > include/dt-bindings/phy/phy-imx8-pcie.h | 14 +++++ > 9 files changed, 525 insertions(+), 8 deletions(-) > > [PATCH v4 1/8] dt-bindings: phy: phy-imx8-pcie: Add binding for the > [PATCH v4 2/8] dt-bindings: phy: Add imx8 pcie phy driver support > [PATCH v4 3/8] dt-bindings: imx6q-pcie: Add PHY phandles and name > [PATCH v4 4/8] arm64: dts: imx8mm: Add the pcie phy support > [PATCH v4 5/8] phy: freescale: pcie: Initialize the imx8 pcie > [PATCH v4 6/8] arm64: dts: imx8mm: Add the pcie support > [PATCH v4 7/8] arm64: dts: imx8mm-evk: Add the pcie support on imx8mm > [PATCH v4 8/8] PCI: imx: Add the imx8mm pcie support Richard, For your v4 series: Reviewed-By: Tim Harvey <tharvey@...eworks.com> Tested-By: Tim Harvey <tharvey@...eworks.com> I tested this on imx8mm-venice* boards with no CLKREQ# support as well as an imx8mm-evk board. Thanks again for your effort on this series! Best regards, Tim
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