linux-kernel - Re: [PATCH v1 3/4] clk: qcom: Add MSM8998 Multimedia Clock Controller (MMCC) driver

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Date:   Tue, 05 Feb 2019 14:06:02 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Jeffrey Hugo <jhugo@...eaurora.org>, bjorn.andersson@...aro.org,
        mturquette@...libre.com
Cc:     marc.w.gonzalez@...e.fr, andy.gross@...aro.org,
        david.brown@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Jeffrey Hugo <jhugo@...eaurora.org>
Subject: Re: [PATCH v1 3/4] clk: qcom: Add MSM8998 Multimedia Clock Controller (MMCC) driver

Quoting Jeffrey Hugo (2019-01-30 08:36:11)
[..]
> +};
> +MODULE_DEVICE_TABLE(of, mmcc_msm8998_match_table);
> +
> +static int mmcc_msm8998_probe(struct platform_device *pdev)
> +{
> +       struct device *dev = &pdev->dev;
> +       int i, ret;
> +       struct regmap *regmap;
> +       struct clk *c;
> +
> +       c = devm_clk_get(dev, "xo");
> +       if (!IS_ERR(c))
> +               dummy_xo_init.parent_names =
> +                                       (const char *[]){__clk_get_name(c)};
> +       else
> +               return PTR_ERR(c);
> +
> +       c = devm_clk_get(dev, "gpll0");
> +       if (!IS_ERR(c))
> +               dummy_gpll0_init.parent_names =
> +                                       (const char *[]){__clk_get_name(c)};
> +       else
> +               return PTR_ERR(c);

Urgh, my parent mapping series can't come be merged fast enough it
seems!

> +
> +       regmap = qcom_cc_map(pdev, &mmcc_msm8998_desc);
> +       if (IS_ERR(regmap))
> +               return PTR_ERR(regmap);
> +
> +       for (i = 0; i < ARRAY_SIZE(mmcc_msm8998_hws); i++) {
> +               ret = devm_clk_hw_register(dev, mmcc_msm8998_hws[i]);

I think we should make this common to the qcom_cc_desc now. Can you
throw in an optional list of clk_hw pointers that also get registered as
its own patch and update the existing drivers that are all doing this?

> +               if (ret)
> +                       return ret;
> +       }
> +
> +       return qcom_cc_really_probe(pdev, &mmcc_msm8998_desc, regmap);
> +}