On Mon, Aug 03, 2015 at 06:21:17PM +0800, Yong Wu wrote:
> +static int mtk_smi_common_get(struct device *smidev)
> +{
> + struct mtk_smi_common *smipriv = dev_get_drvdata(smidev);
> + int ret;
> +
> + ret = pm_runtime_get_sync(smidev);
> + if (ret < 0)
> + return ret;
> +
> + ret = clk_prepare_enable(smipriv->clk_apb);
> + if (ret) {
> + dev_err(smidev, "Failed to enable the apb clock\n");
> + goto err_put_pm;
> + }
> + ret = clk_prepare_enable(smipriv->clk_smi);
> + if (ret) {
> + dev_err(smidev, "Failed to enable the smi clock\n");
> + goto err_disable_apb;
> + }
> + return ret;
> +
> +err_disable_apb:
> + clk_disable_unprepare(smipriv->clk_apb);
> +err_put_pm:
> + pm_runtime_put(smidev);
> + return ret;
> +}
[...]
> +int mtk_smi_larb_get(struct device *larbdev)
> +{
> + struct mtk_smi_larb *larbpriv = dev_get_drvdata(larbdev);
> + struct mtk_larb_mmu *mmucfg = larbdev->archdata.iommu;
> + int ret;
> +
> + ret = mtk_smi_common_get(larbpriv->smi);
> + if (ret)
> + return ret;
> +
> + ret = pm_runtime_get_sync(larbdev);
> + if (ret < 0)
> + goto err_put_smicommon;
> +
> + ret = clk_prepare_enable(larbpriv->clk_apb);
> + if (ret) {
> + dev_err(larbdev, "Failed to enable the apb clock\n");
> + goto err_put_pm;
> + }
> +
> + ret = clk_prepare_enable(larbpriv->clk_smi);
> + if (ret) {
> + dev_err(larbdev, "Failed to enable the smi clock\n");
> + goto err_disable_apb;
> + }
The clock enablement looks similar to the function above, maybe move it
to a helper function?
Joerg
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