Messages in this thread | | | From | Georgi Djakov <> | Subject | Re: [PATCH v8 3/3] mailbox: qcom: Add support for APCS clock controller | Date | Tue, 27 Jun 2017 19:21:20 +0300 |
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Hi Bjorn,
On 06/23/2017 08:45 PM, Bjorn Andersson wrote: > On Fri 23 Jun 09:15 PDT 2017, Georgi Djakov wrote: > >> +static int msm8916_register_clk(struct device *dev, void __iomem *base) >> +{ > [..] >> + regmap = devm_regmap_init_mmio(dev, base, &a53cc_regmap_config); >> + if (IS_ERR(regmap)) { >> + ret = PTR_ERR(regmap); >> + dev_err(dev, "failed to init regmap mmio: %d\n", ret); >> + goto err; >> + } > > I think it would be cleaner if you create the regmap in probe() and we > use that throughout the driver - rather than using two different access > mechanism.
Ok agree, will make sure its consistent.
> >> + >> + a53cc->clkr.regmap = regmap; >> + >> + ret = devm_clk_register_regmap(dev, &a53cc->clkr); >> + if (ret) { >> + dev_err(dev, "failed to register regmap clock: %d\n", ret); >> + goto err; >> + } >> + >> + ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_simple_get, >> + &a53cc->clkr.hw); >> + if (ret) { >> + dev_err(dev, "failed to add clock provider: %d\n", ret); >> + goto err; >> + } >> + >> + return 0; >> + >> +err: >> + clk_notifier_unregister(pclk, &a53cc->clk_nb); >> + return ret; >> +} >> + >> static int qcom_apcs_ipc_probe(struct platform_device *pdev) >> { >> + struct device_node *np = pdev->dev.of_node; >> struct qcom_apcs_ipc *apcs; >> struct resource *res; >> unsigned long offset; >> @@ -63,6 +178,13 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev) >> if (IS_ERR(base)) >> return PTR_ERR(base); >> >> + if (of_device_is_compatible(np, "qcom,msm8916-apcs-kpss-global")) { >> + /* register the APCS mux and divider clock */ >> + ret = msm8916_register_clk(&pdev->dev, base); >> + if (ret) >> + return ret; >> + } >> + > > Don't you need to clean up anything in the below error path and in > remove()?
Right, will take care of it.
> >> offset = (unsigned long)of_device_get_match_data(&pdev->dev); >> >> apcs->reg = base + offset; > > Other than that I think this looks reasonable.
Thanks for your time!
BR, Georgi
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