Re: [PATCH 2/3] firmware: qcom: scm: Remove core, iface and bus clocks dependency

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On Wed 02 Nov 12:24 PDT 2016, Sarangdhar Joshi wrote:

> On 11/01/2016 04:11 PM, Stephen Boyd wrote:
> >On 10/28, Sarangdhar Joshi wrote:
> >>@@ -380,33 +384,43 @@ EXPORT_SYMBOL(qcom_scm_is_available);
> >> static int qcom_scm_probe(struct platform_device *pdev)
> >> {
> >> 	struct qcom_scm *scm;
> >>+	uint64_t clks;
> >> 	int ret;
> >>
> >> 	scm = devm_kzalloc(&pdev->dev, sizeof(*scm), GFP_KERNEL);
> >> 	if (!scm)
> >> 		return -ENOMEM;
> >>
> >>-	scm->core_clk = devm_clk_get(&pdev->dev, "core");
> >>-	if (IS_ERR(scm->core_clk)) {
> >>-		if (PTR_ERR(scm->core_clk) == -EPROBE_DEFER)
> >>-			return PTR_ERR(scm->core_clk);
> >>+	clks = (uint64_t)of_device_get_match_data(&pdev->dev);
> >>+	if (clks & SCM_HAS_CORE_CLK) {
> >>+		scm->core_clk = devm_clk_get(&pdev->dev, "core");
> >>+		if (IS_ERR(scm->core_clk)) {
> >>+			if (PTR_ERR(scm->core_clk) == -EPROBE_DEFER)
> >>+				return PTR_ERR(scm->core_clk);
> >>
> >>-		scm->core_clk = NULL;
> >>+			scm->core_clk = NULL;
> >>+		}
> >> 	}
> >>
> >> 	if (of_device_is_compatible(pdev->dev.of_node, "qcom,scm")) {
> >
> >Why didn't this also get added to the flags feature? I'd prefer
> >we either use of_device_is_compatible() for everything, or device
> >data to figure out what quirks to apply.
> 
> You're right. These flags are already added for "qcom,scm" compatible. We
> can modify this to honor data flags only. I hope it's okay to update it in
> the same patch?
> 

Yes, you're replacing the old conditional with a set of new ones, so it
should go in this patch.

Regards,
Bjorn
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