phy: ti-pipe3: Introduce mode property in driver data (22940823) · Commits · EulixOS / Software / Kernel

drivers/phy/ti/phy-ti-pipe3.c

+57 −36

Original line number	Diff line number	Diff line
		@@ -110,6 +110,10 @@
		#define PLL_IDLE_TIME 100 /* in milliseconds */
		#define PLL_LOCK_TIME 100 /* in milliseconds */

		enum pipe3_mode { PIPE3_MODE_PCIE = 1,
		PIPE3_MODE_SATA,
		PIPE3_MODE_USBSS };

		struct pipe3_dpll_params {
		u16 m;
		u8 n;
		@@ -141,6 +145,7 @@ struct ti_pipe3 {
		unsigned int power_reg; /* power reg. index within syscon */
		unsigned int pcie_pcs_reg; /* pcs reg. index in syscon */
		bool sata_refclk_enabled;
		enum pipe3_mode mode;
		};

		static struct pipe3_dpll_map dpll_map_usb[] = {
		@@ -163,6 +168,25 @@ static struct pipe3_dpll_map dpll_map_sata[] = {
		{ }, /* Terminator */
		};

		struct pipe3_data {
		enum pipe3_mode mode;
		struct pipe3_dpll_map *dpll_map;
		};

		static struct pipe3_data data_usb = {
		.mode = PIPE3_MODE_USBSS,
		.dpll_map = dpll_map_usb,
		};

		static struct pipe3_data data_sata = {
		.mode = PIPE3_MODE_SATA,
		.dpll_map = dpll_map_sata,
		};

		static struct pipe3_data data_pcie = {
		.mode = PIPE3_MODE_PCIE,
		};

		static inline u32 ti_pipe3_readl(void __iomem *addr, unsigned offset)
		{
		return __raw_readl(addr + offset);
		@@ -340,7 +364,7 @@ static int ti_pipe3_init(struct phy *x)
		* as recommended in AM572x TRM SPRUHZ6, section 18.5.2.2, table
		* 18-1804.
		*/
		if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-pcie")) {
		if (phy->mode == PIPE3_MODE_PCIE) {
		if (!phy->pcs_syscon) {
		omap_control_pcie_pcs(phy->control_dev, 0x96);
		return 0;
		@@ -367,8 +391,7 @@ static int ti_pipe3_init(struct phy *x)

		/* SATA has issues if re-programmed when locked */
		val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
		if ((val & PLL_LOCK) && of_device_is_compatible(phy->dev->of_node,
		"ti,phy-pipe3-sata"))
		if ((val & PLL_LOCK) && phy->mode == PIPE3_MODE_SATA)
		return ret;

		/* Program the DPLL */
		@@ -390,12 +413,11 @@ static int ti_pipe3_exit(struct phy *x)
		/* If dpll_reset_syscon is not present we wont power down SATA DPLL
		* due to Errata i783
		*/
		if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata") &&
		!phy->dpll_reset_syscon)
		if (phy->mode == PIPE3_MODE_SATA && !phy->dpll_reset_syscon)
		return 0;

		/* PCIe doesn't have internal DPLL */
		if (!of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-pcie")) {
		if (phy->mode != PIPE3_MODE_PCIE) {
		/* Put DPLL in IDLE mode */
		val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
		val \|= PLL_IDLE;
		@@ -418,7 +440,7 @@ static int ti_pipe3_exit(struct phy *x)
		}

		/* i783: SATA needs control bit toggle after PLL unlock */
		if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata")) {
		if (phy->mode == PIPE3_MODE_SATA) {
		regmap_update_bits(phy->dpll_reset_syscon, phy->dpll_reset_reg,
		SATA_PLL_SOFT_RESET, SATA_PLL_SOFT_RESET);
		regmap_update_bits(phy->dpll_reset_syscon, phy->dpll_reset_reg,
		@@ -443,7 +465,6 @@ static int ti_pipe3_get_clk(struct ti_pipe3 *phy)
		{
		struct clk *clk;
		struct device *dev = phy->dev;
		struct device_node *node = dev->of_node;

		phy->refclk = devm_clk_get(dev, "refclk");
		if (IS_ERR(phy->refclk)) {
		@@ -451,11 +472,11 @@ static int ti_pipe3_get_clk(struct ti_pipe3 *phy)
		/* older DTBs have missing refclk in SATA PHY
		* so don't bail out in case of SATA PHY.
		*/
		if (!of_device_is_compatible(node, "ti,phy-pipe3-sata"))
		if (phy->mode != PIPE3_MODE_SATA)
		return PTR_ERR(phy->refclk);
		}

		if (!of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
		if (phy->mode != PIPE3_MODE_SATA) {
		phy->wkupclk = devm_clk_get(dev, "wkupclk");
		if (IS_ERR(phy->wkupclk)) {
		dev_err(dev, "unable to get wkupclk\n");
		@@ -465,8 +486,7 @@ static int ti_pipe3_get_clk(struct ti_pipe3 *phy)
		phy->wkupclk = ERR_PTR(-ENODEV);
		}

		if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie") \|\|
		phy->phy_power_syscon) {
		if (phy->mode != PIPE3_MODE_PCIE \|\| phy->phy_power_syscon) {
		phy->sys_clk = devm_clk_get(dev, "sysclk");
		if (IS_ERR(phy->sys_clk)) {
		dev_err(dev, "unable to get sysclk\n");
		@@ -474,7 +494,7 @@ static int ti_pipe3_get_clk(struct ti_pipe3 *phy)
		}
		}

		if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
		if (phy->mode == PIPE3_MODE_PCIE) {
		clk = devm_clk_get(dev, "dpll_ref");
		if (IS_ERR(clk)) {
		dev_err(dev, "unable to get dpll ref clk\n");
		@@ -546,7 +566,7 @@ static int ti_pipe3_get_sysctrl(struct ti_pipe3 *phy)
		phy->control_dev = &control_pdev->dev;
		}

		if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
		if (phy->mode == PIPE3_MODE_PCIE) {
		phy->pcs_syscon = syscon_regmap_lookup_by_phandle(node,
		"syscon-pcs");
		if (IS_ERR(phy->pcs_syscon)) {
		@@ -564,7 +584,7 @@ static int ti_pipe3_get_sysctrl(struct ti_pipe3 *phy)
		}
		}

		if (of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
		if (phy->mode == PIPE3_MODE_SATA) {
		phy->dpll_reset_syscon = syscon_regmap_lookup_by_phandle(node,
		"syscon-pllreset");
		if (IS_ERR(phy->dpll_reset_syscon)) {
		@@ -589,10 +609,9 @@ static int ti_pipe3_get_tx_rx_base(struct ti_pipe3 *phy)
		{
		struct resource *res;
		struct device *dev = phy->dev;
		struct device_node *node = dev->of_node;
		struct platform_device *pdev = to_platform_device(dev);

		if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie"))
		if (phy->mode != PIPE3_MODE_PCIE)
		return 0;

		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
		@@ -611,24 +630,12 @@ static int ti_pipe3_get_tx_rx_base(struct ti_pipe3 *phy)
		static int ti_pipe3_get_pll_base(struct ti_pipe3 *phy)
		{
		struct resource *res;
		const struct of_device_id *match;
		struct device *dev = phy->dev;
		struct device_node *node = dev->of_node;
		struct platform_device *pdev = to_platform_device(dev);

		if (of_device_is_compatible(node, "ti,phy-pipe3-pcie"))
		if (phy->mode == PIPE3_MODE_PCIE)
		return 0;

		match = of_match_device(ti_pipe3_id_table, dev);
		if (!match)
		return -EINVAL;

		phy->dpll_map = (struct pipe3_dpll_map *)match->data;
		if (!phy->dpll_map) {
		dev_err(dev, "no DPLL data\n");
		return -EINVAL;
		}

		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
		"pll_ctrl");
		phy->pll_ctrl_base = devm_ioremap_resource(dev, res);
		@@ -640,15 +647,28 @@ static int ti_pipe3_probe(struct platform_device *pdev)
		struct ti_pipe3 *phy;
		struct phy *generic_phy;
		struct phy_provider *phy_provider;
		struct device_node *node = pdev->dev.of_node;
		struct device *dev = &pdev->dev;
		int ret;
		const struct of_device_id *match;
		struct pipe3_data *data;

		phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
		if (!phy)
		return -ENOMEM;

		match = of_match_device(ti_pipe3_id_table, dev);
		if (!match)
		return -EINVAL;

		data = (struct pipe3_data *)match->data;
		if (!data) {
		dev_err(dev, "no driver data\n");
		return -EINVAL;
		}

		phy->dev = dev;
		phy->mode = data->mode;
		phy->dpll_map = data->dpll_map;

		ret = ti_pipe3_get_pll_base(phy);
		if (ret)
		@@ -672,7 +692,7 @@ static int ti_pipe3_probe(struct platform_device *pdev)
		/*
		* Prevent auto-disable of refclk for SATA PHY due to Errata i783
		*/
		if (of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
		if (phy->mode == PIPE3_MODE_SATA) {
		if (!IS_ERR(phy->refclk)) {
		clk_prepare_enable(phy->refclk);
		phy->sata_refclk_enabled = true;
		@@ -762,18 +782,19 @@ static void ti_pipe3_disable_clocks(struct ti_pipe3 *phy)
		static const struct of_device_id ti_pipe3_id_table[] = {
		{
		.compatible = "ti,phy-usb3",
		.data = dpll_map_usb,
		.data = &data_usb,
		},
		{
		.compatible = "ti,omap-usb3",
		.data = dpll_map_usb,
		.data = &data_usb,
		},
		{
		.compatible = "ti,phy-pipe3-sata",
		.data = dpll_map_sata,
		.data = &data_sata,
		},
		{
		.compatible = "ti,phy-pipe3-pcie",
		.data = &data_pcie,
		},
		{}
		};