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SubjectRe: [PATCH 3/7] phy: qcom-qmp: Fix phy pipe clock name
On Mon 17 Jul 05:03 PDT 2017, Varadarajan Narayanan wrote:

> Presently, the phy pipe clock's name is assumed to be either
> usb3_phy_pipe_clk_src or pcie_XX_pipe_clk_src (where XX is the
> phy lane's number). However, this will not work if an SoC has
> more than one instance of the phy. Hence, instead of assuming
> the name of the clock, fetch it from the DT.
>

Adding the support to fetch this from DT looks reasonable, but you
should make sure to fall back to the old logic in case you don't find a
"clock-output-names" property.

[..]
> @@ -1110,6 +1103,8 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
>
> id = 0;
> for_each_available_child_of_node(dev->of_node, child) {
> + const char *clk_name;
> +
> /* Create per-lane phy */
> ret = qcom_qmp_phy_create(dev, child, id);
> if (ret) {
> @@ -1118,11 +1113,20 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
> return ret;
> }
>
> + ret = of_property_read_string(child, "clock-output-names",
> + &clk_name);
> + if (ret) {

This would be the case for any existing dts files, so you're not allowed
to treat this as an error.

> + dev_err(dev,
> + "failed to get clock-output-names for lane%d phy, %d\n",
> + id, ret);
> + return ret;
> + }
> +

Regards,
Bjorn

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