On Tue, 2015-08-11 at 16:56 +0200, Joerg Roedel wrote:
> 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?
Thanks. I will improve it in next version.
>
>
> Joerg
>
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