Lines Matching full:phy
3 * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
14 #include <linux/phy/omap_usb.h>
20 #include <linux/phy/omap_control_phy.h>
21 #include <linux/phy/phy.h>
35 * this phy
36 * @comparator - the companion phy(comparator) for this phy
38 * The phy companion driver should call this API passing the phy_companion
39 * filled with set_vbus and start_srp to be used by usb phy.
41 * For use by phy companion driver
45 struct omap_usb *phy; in omap_usb2_set_comparator() local
51 phy = phy_to_omapusb(x); in omap_usb2_set_comparator()
52 phy->comparator = comparator; in omap_usb2_set_comparator()
59 struct omap_usb *phy = phy_to_omapusb(otg->usb_phy); in omap_usb_set_vbus() local
61 if (!phy->comparator) in omap_usb_set_vbus()
64 return phy->comparator->set_vbus(phy->comparator, enabled); in omap_usb_set_vbus()
69 struct omap_usb *phy = phy_to_omapusb(otg->usb_phy); in omap_usb_start_srp() local
71 if (!phy->comparator) in omap_usb_start_srp()
74 return phy->comparator->start_srp(phy->comparator); in omap_usb_start_srp()
96 static int omap_usb_phy_power(struct omap_usb *phy, int on) in omap_usb_phy_power() argument
101 if (!phy->syscon_phy_power) { in omap_usb_phy_power()
102 omap_control_phy_power(phy->control_dev, on); in omap_usb_phy_power()
107 val = phy->power_on; in omap_usb_phy_power()
109 val = phy->power_off; in omap_usb_phy_power()
111 ret = regmap_update_bits(phy->syscon_phy_power, phy->power_reg, in omap_usb_phy_power()
112 phy->mask, val); in omap_usb_phy_power()
116 static int omap_usb_power_off(struct phy *x) in omap_usb_power_off()
118 struct omap_usb *phy = phy_get_drvdata(x); in omap_usb_power_off() local
120 return omap_usb_phy_power(phy, false); in omap_usb_power_off()
123 static int omap_usb_power_on(struct phy *x) in omap_usb_power_on()
125 struct omap_usb *phy = phy_get_drvdata(x); in omap_usb_power_on() local
127 return omap_usb_phy_power(phy, true); in omap_usb_power_on()
130 static int omap_usb2_disable_clocks(struct omap_usb *phy) in omap_usb2_disable_clocks() argument
132 clk_disable_unprepare(phy->wkupclk); in omap_usb2_disable_clocks()
133 if (!IS_ERR(phy->optclk)) in omap_usb2_disable_clocks()
134 clk_disable_unprepare(phy->optclk); in omap_usb2_disable_clocks()
139 static int omap_usb2_enable_clocks(struct omap_usb *phy) in omap_usb2_enable_clocks() argument
143 ret = clk_prepare_enable(phy->wkupclk); in omap_usb2_enable_clocks()
145 dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret); in omap_usb2_enable_clocks()
149 if (!IS_ERR(phy->optclk)) { in omap_usb2_enable_clocks()
150 ret = clk_prepare_enable(phy->optclk); in omap_usb2_enable_clocks()
152 dev_err(phy->dev, "Failed to enable optclk %d\n", ret); in omap_usb2_enable_clocks()
160 clk_disable(phy->wkupclk); in omap_usb2_enable_clocks()
166 static int omap_usb_init(struct phy *x) in omap_usb_init()
168 struct omap_usb *phy = phy_get_drvdata(x); in omap_usb_init() local
171 omap_usb2_enable_clocks(phy); in omap_usb_init()
173 if (phy->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) { in omap_usb_init()
176 * Reduce the sensitivity of internal PHY by enabling the in omap_usb_init()
182 val = omap_usb_readl(phy->phy_base, USB2PHY_ANA_CONFIG1); in omap_usb_init()
184 omap_usb_writel(phy->phy_base, USB2PHY_ANA_CONFIG1, val); in omap_usb_init()
190 static int omap_usb_exit(struct phy *x) in omap_usb_exit()
192 struct omap_usb *phy = phy_get_drvdata(x); in omap_usb_exit() local
194 return omap_usb2_disable_clocks(phy); in omap_usb_exit()
282 struct omap_usb *phy; in omap_usb2_probe() local
283 struct phy *generic_phy; in omap_usb2_probe()
300 phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); in omap_usb2_probe()
301 if (!phy) in omap_usb2_probe()
308 phy->dev = &pdev->dev; in omap_usb2_probe()
310 phy->phy.dev = phy->dev; in omap_usb2_probe()
311 phy->phy.label = phy_data->label; in omap_usb2_probe()
312 phy->phy.otg = otg; in omap_usb2_probe()
313 phy->phy.type = USB_PHY_TYPE_USB2; in omap_usb2_probe()
314 phy->mask = phy_data->mask; in omap_usb2_probe()
315 phy->power_on = phy_data->power_on; in omap_usb2_probe()
316 phy->power_off = phy_data->power_off; in omap_usb2_probe()
320 phy->phy_base = devm_ioremap_resource(&pdev->dev, res); in omap_usb2_probe()
321 if (IS_ERR(phy->phy_base)) in omap_usb2_probe()
322 return PTR_ERR(phy->phy_base); in omap_usb2_probe()
323 phy->flags |= OMAP_USB2_CALIBRATE_FALSE_DISCONNECT; in omap_usb2_probe()
326 phy->syscon_phy_power = syscon_regmap_lookup_by_phandle(node, in omap_usb2_probe()
327 "syscon-phy-power"); in omap_usb2_probe()
328 if (IS_ERR(phy->syscon_phy_power)) { in omap_usb2_probe()
330 "can't get syscon-phy-power, using control device\n"); in omap_usb2_probe()
331 phy->syscon_phy_power = NULL; in omap_usb2_probe()
345 phy->control_dev = &control_pdev->dev; in omap_usb2_probe()
348 "syscon-phy-power", 1, in omap_usb2_probe()
349 &phy->power_reg)) { in omap_usb2_probe()
357 phy->wkupclk = devm_clk_get(phy->dev, "wkupclk"); in omap_usb2_probe()
358 if (IS_ERR(phy->wkupclk)) { in omap_usb2_probe()
359 if (PTR_ERR(phy->wkupclk) == -EPROBE_DEFER) in omap_usb2_probe()
363 PTR_ERR(phy->wkupclk)); in omap_usb2_probe()
364 phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k"); in omap_usb2_probe()
366 if (IS_ERR(phy->wkupclk)) { in omap_usb2_probe()
367 if (PTR_ERR(phy->wkupclk) != -EPROBE_DEFER) in omap_usb2_probe()
369 return PTR_ERR(phy->wkupclk); in omap_usb2_probe()
376 phy->optclk = devm_clk_get(phy->dev, "refclk"); in omap_usb2_probe()
377 if (IS_ERR(phy->optclk)) { in omap_usb2_probe()
378 if (PTR_ERR(phy->optclk) == -EPROBE_DEFER) in omap_usb2_probe()
382 phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m"); in omap_usb2_probe()
384 if (IS_ERR(phy->optclk)) { in omap_usb2_probe()
385 if (PTR_ERR(phy->optclk) != -EPROBE_DEFER) { in omap_usb2_probe()
401 otg->usb_phy = &phy->phy; in omap_usb2_probe()
403 platform_set_drvdata(pdev, phy); in omap_usb2_probe()
404 pm_runtime_enable(phy->dev); in omap_usb2_probe()
406 generic_phy = devm_phy_create(phy->dev, NULL, &ops); in omap_usb2_probe()
408 pm_runtime_disable(phy->dev); in omap_usb2_probe()
412 phy_set_drvdata(generic_phy, phy); in omap_usb2_probe()
415 phy_provider = devm_of_phy_provider_register(phy->dev, in omap_usb2_probe()
418 pm_runtime_disable(phy->dev); in omap_usb2_probe()
423 usb_add_phy_dev(&phy->phy); in omap_usb2_probe()
430 struct omap_usb *phy = platform_get_drvdata(pdev); in omap_usb2_remove() local
432 usb_remove_phy(&phy->phy); in omap_usb2_remove()
433 pm_runtime_disable(phy->dev); in omap_usb2_remove()
451 MODULE_DESCRIPTION("OMAP USB2 phy driver");