phy: cadence-torrent: Add PHY APB reset support (15c6a048) · Commits · 戴 / test

drivers/phy/cadence/phy-cadence-torrent.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -228,6 +228,7 @@ struct cdns_torrent_phy {
		void __iomem sd_base; / SD0801 registers base */
		u32 max_bit_rate; /* Maximum link bit rate to use (in Mbps) */
		struct reset_control *phy_rst;
		struct reset_control *apb_rst;
		struct device *dev;
		struct clk *clk;
		unsigned long ref_clk_rate;
		@@ -1883,6 +1884,13 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
		return PTR_ERR(cdns_phy->phy_rst);
		}

		cdns_phy->apb_rst = devm_reset_control_get_optional(dev, "torrent_apb");
		if (IS_ERR(cdns_phy->apb_rst)) {
		dev_err(dev, "%s: failed to get apb reset\n",
		dev->of_node->full_name);
		return PTR_ERR(cdns_phy->apb_rst);
		}

		cdns_phy->clk = devm_clk_get(dev, "refclk");
		if (IS_ERR(cdns_phy->clk)) {
		dev_err(dev, "phy ref clock not found\n");
		@@ -1907,6 +1915,9 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
		if (ret)
		return ret;

		/* Enable APB */
		reset_control_deassert(cdns_phy->apb_rst);

		for_each_available_child_of_node(dev->of_node, child) {
		struct phy *gphy;

		@@ -2059,6 +2070,7 @@ put_lnk_rst:
		for (i = 0; i < node; i++)
		reset_control_put(cdns_phy->phys[i].lnk_rst);
		of_node_put(child);
		reset_control_assert(cdns_phy->apb_rst);
		return ret;
		}

		@@ -2068,6 +2080,7 @@ static int cdns_torrent_phy_remove(struct platform_device *pdev)
		int i;

		reset_control_assert(cdns_phy->phy_rst);
		reset_control_assert(cdns_phy->apb_rst);
		for (i = 0; i < cdns_phy->nsubnodes; i++) {
		reset_control_assert(cdns_phy->phys[i].lnk_rst);
		reset_control_put(cdns_phy->phys[i].lnk_rst);