usb: xhci-mtk: add reference clock (9c4afd42) · Commits · 戴 / test

drivers/usb/host/xhci-mtk.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -212,6 +212,12 @@ static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk)
		{
		int ret;

		ret = clk_prepare_enable(mtk->ref_clk);
		if (ret) {
		dev_err(mtk->dev, "failed to enable ref_clk\n");
		goto ref_clk_err;
		}

		ret = clk_prepare_enable(mtk->sys_clk);
		if (ret) {
		dev_err(mtk->dev, "failed to enable sys_clk\n");
		@@ -238,6 +244,8 @@ usb_p1_err:
		usb_p0_err:
		clk_disable_unprepare(mtk->sys_clk);
		sys_clk_err:
		clk_disable_unprepare(mtk->ref_clk);
		ref_clk_err:
		return -EINVAL;
		}

		@@ -248,6 +256,7 @@ static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk)
		clk_disable_unprepare(mtk->wk_deb_p0);
		}
		clk_disable_unprepare(mtk->sys_clk);
		clk_disable_unprepare(mtk->ref_clk);
		}

		/* only clocks can be turn off for ip-sleep wakeup mode */
		@@ -550,6 +559,12 @@ static int xhci_mtk_probe(struct platform_device *pdev)
		return PTR_ERR(mtk->sys_clk);
		}

		mtk->ref_clk = devm_clk_get(dev, "ref_ck");
		if (IS_ERR(mtk->ref_clk)) {
		dev_err(dev, "fail to get ref_ck\n");
		return PTR_ERR(mtk->ref_clk);
		}

		mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");

		ret = usb_wakeup_of_property_parse(mtk, node);

+1 −0

Original line number	Diff line number	Diff line
		@@ -124,6 +124,7 @@ struct xhci_hcd_mtk {
		struct regulator *vusb33;
		struct regulator *vbus;
		struct clk sys_clk; / sys and mac clock */
		struct clk *ref_clk;
		struct clk wk_deb_p0; / port0's wakeup debounce clock */
		struct clk *wk_deb_p1;
		struct regmap *pericfg;