On Thu, Jan 24, 2019 at 12:15:20PM -0800, Andrey Smirnov wrote:
> PCIE PHY IP block on i.MX7D differs from the one used on i.MX6 family,
> so none of the code in current implementation of imx6_setup_phy_mpll()
> is applicable.

So :) ? Add a conclusive statement to the commit log.

Lorenzo

> Tested-by: Trent Piepho <[email protected]>
> Signed-off-by: Andrey Smirnov <[email protected]>
> Reviewed-by: Lucas Stach <[email protected]>
> Cc: Bjorn Helgaas <[email protected]>
> Cc: Fabio Estevam <[email protected]>
> Cc: Chris Healy <[email protected]>
> Cc: Lucas Stach <[email protected]>
> Cc: Leonard Crestez <[email protected]>
> Cc: "A.s. Dong" <[email protected]>
> Cc: Richard Zhu <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> ---
>  drivers/pci/controller/dwc/pci-imx6.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c 
> b/drivers/pci/controller/dwc/pci-imx6.c
> index efff3d5e9162..c55d93c1187d 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -41,8 +41,11 @@ enum imx6_pcie_variants {
>       IMX7D,
>  };
>  
> +#define IMX6_PCIE_FLAG_IMX6_PHY                      BIT(0)
> +
>  struct imx6_pcie_drvdata {
>       enum imx6_pcie_variants variant;
> +     u32 flags;
>  };
>  
>  struct imx6_pcie {
> @@ -256,6 +259,9 @@ static void imx6_pcie_reset_phy(struct imx6_pcie 
> *imx6_pcie)
>  {
>       u32 tmp;
>  
> +     if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
> +             return;
> +
>       pcie_phy_read(imx6_pcie, PHY_RX_OVRD_IN_LO, &tmp);
>       tmp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN |
>               PHY_RX_OVRD_IN_LO_RX_PLL_EN);
> @@ -573,6 +579,9 @@ static int imx6_setup_phy_mpll(struct imx6_pcie 
> *imx6_pcie)
>       int mult, div;
>       u32 val;
>  
> +     if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
> +             return 0;
> +
>       switch (phy_rate) {
>       case 125000000:
>               /*
> @@ -1088,12 +1097,15 @@ static void imx6_pcie_shutdown(struct platform_device 
> *pdev)
>  static const struct imx6_pcie_drvdata drvdata[] = {
>       [IMX6Q] = {
>               .variant = IMX6Q,
> +             .flags = IMX6_PCIE_FLAG_IMX6_PHY,
>       },
>       [IMX6SX] = {
>               .variant = IMX6SX,
> +             .flags = IMX6_PCIE_FLAG_IMX6_PHY,
>       },
>       [IMX6QP] = {
>               .variant = IMX6QP,
> +             .flags = IMX6_PCIE_FLAG_IMX6_PHY,
>       },
>       [IMX7D] = {
>               .variant = IMX7D,
> -- 
> 2.20.1
> 

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