From 6cb9310a3290beb8c0d31703a2e76b90a10b4ca0 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Thu, 3 Oct 2013 18:12:31 +0300 Subject: usb: phy: omap: Add new device types and remove omap_control_usb3_phy_power() Add support for new device types and in the process rid of "ti,type" device tree property. The correct type of device will be determined from the compatible string instead. Introduce a compatible string for each device type. At the moment we support 4 types OTGHS, USB2, PIPE3 (e.g. USB3) and DRA7USB2. Update DT binding information to reflect these changes. Also get rid of omap_control_usb3_phy_power(). Just one function i.e. omap_control_usb_phy_power() will now take care of all PHY types. Signed-off-by: Roger Quadros Signed-off-by: Greg Kroah-Hartman --- drivers/usb/phy/phy-omap-control.c | 173 +++++++++++++++++++++---------------- drivers/usb/phy/phy-omap-usb3.c | 6 +- 2 files changed, 103 insertions(+), 76 deletions(-) (limited to 'drivers/usb/phy') diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c index 977259252a8e..1c8a7c5ccb9b 100644 --- a/drivers/usb/phy/phy-omap-control.c +++ b/drivers/usb/phy/phy-omap-control.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -46,61 +47,70 @@ struct device *omap_get_control_dev(void) EXPORT_SYMBOL_GPL(omap_get_control_dev); /** - * omap_control_usb3_phy_power - power on/off the serializer using control - * module + * omap_control_usb_phy_power - power on/off the phy using control module reg * @dev: the control module device - * @on: 0 to off and 1 to on based on powering on or off the PHY - * - * usb3 PHY driver should call this API to power on or off the PHY. + * @on: 0 or 1, based on powering on or off the PHY */ -void omap_control_usb3_phy_power(struct device *dev, bool on) +void omap_control_usb_phy_power(struct device *dev, int on) { u32 val; unsigned long rate; - struct omap_control_usb *control_usb = dev_get_drvdata(dev); + struct omap_control_usb *control_usb; - if (control_usb->type != OMAP_CTRL_DEV_TYPE2) + if (IS_ERR(dev) || !dev) { + pr_err("%s: invalid device\n", __func__); return; + } - rate = clk_get_rate(control_usb->sys_clk); - rate = rate/1000000; - - val = readl(control_usb->phy_power); - - if (on) { - val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK | - OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK); - val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON << - OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; - val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT; - } else { - val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK; - val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF << - OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; + control_usb = dev_get_drvdata(dev); + if (!control_usb) { + dev_err(dev, "%s: invalid control usb device\n", __func__); + return; } - writel(val, control_usb->phy_power); -} -EXPORT_SYMBOL_GPL(omap_control_usb3_phy_power); + if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) + return; -/** - * omap_control_usb_phy_power - power on/off the phy using control module reg - * @dev: the control module device - * @on: 0 or 1, based on powering on or off the PHY - */ -void omap_control_usb_phy_power(struct device *dev, int on) -{ - u32 val; - struct omap_control_usb *control_usb = dev_get_drvdata(dev); + val = readl(control_usb->power); + + switch (control_usb->type) { + case OMAP_CTRL_TYPE_USB2: + if (on) + val &= ~OMAP_CTRL_DEV_PHY_PD; + else + val |= OMAP_CTRL_DEV_PHY_PD; + break; - val = readl(control_usb->dev_conf); + case OMAP_CTRL_TYPE_PIPE3: + rate = clk_get_rate(control_usb->sys_clk); + rate = rate/1000000; + + if (on) { + val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK | + OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK); + val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON << + OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; + val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT; + } else { + val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK; + val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF << + OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; + } + break; - if (on) - val &= ~OMAP_CTRL_DEV_PHY_PD; - else - val |= OMAP_CTRL_DEV_PHY_PD; + case OMAP_CTRL_TYPE_DRA7USB2: + if (on) + val &= ~OMAP_CTRL_USB2_PHY_PD; + else + val |= OMAP_CTRL_USB2_PHY_PD; + break; + default: + dev_err(dev, "%s: type %d not recognized\n", + __func__, control_usb->type); + break; + } - writel(val, control_usb->dev_conf); + writel(val, control_usb->power); } EXPORT_SYMBOL_GPL(omap_control_usb_phy_power); @@ -172,7 +182,7 @@ void omap_control_usb_set_mode(struct device *dev, { struct omap_control_usb *ctrl_usb; - if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_DEV_TYPE1) + if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_TYPE_OTGHS) return; ctrl_usb = dev_get_drvdata(dev); @@ -193,10 +203,45 @@ void omap_control_usb_set_mode(struct device *dev, } EXPORT_SYMBOL_GPL(omap_control_usb_set_mode); +#ifdef CONFIG_OF + +static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS; +static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2; +static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3; +static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2; + +static const struct of_device_id omap_control_usb_id_table[] = { + { + .compatible = "ti,control-phy-otghs", + .data = &otghs_data, + }, + { + .compatible = "ti,control-phy-usb2", + .data = &usb2_data, + }, + { + .compatible = "ti,control-phy-pipe3", + .data = &pipe3_data, + }, + { + .compatible = "ti,control-phy-dra7usb2", + .data = &dra7usb2_data, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); +#endif + + static int omap_control_usb_probe(struct platform_device *pdev) { struct resource *res; - struct device_node *np = pdev->dev.of_node; + const struct of_device_id *of_id; + + of_id = of_match_device(of_match_ptr(omap_control_usb_id_table), + &pdev->dev); + if (!of_id) + return -EINVAL; control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb), GFP_KERNEL); @@ -205,36 +250,27 @@ static int omap_control_usb_probe(struct platform_device *pdev) return -ENOMEM; } - if (np) - of_property_read_u32(np, "ti,type", &control_usb->type); - else - return -EINVAL; /* We only support DT boot */ - - control_usb->dev = &pdev->dev; + control_usb->dev = &pdev->dev; + control_usb->type = *(enum omap_control_usb_type *)of_id->data; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "control_dev_conf"); - control_usb->dev_conf = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(control_usb->dev_conf)) - return PTR_ERR(control_usb->dev_conf); - - if (control_usb->type == OMAP_CTRL_DEV_TYPE1) { + if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "otghs_control"); control_usb->otghs_control = devm_ioremap_resource( &pdev->dev, res); if (IS_ERR(control_usb->otghs_control)) return PTR_ERR(control_usb->otghs_control); - } - - if (control_usb->type == OMAP_CTRL_DEV_TYPE2) { + } else { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "phy_power_usb"); - control_usb->phy_power = devm_ioremap_resource( - &pdev->dev, res); - if (IS_ERR(control_usb->phy_power)) - return PTR_ERR(control_usb->phy_power); + "power"); + control_usb->power = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(control_usb->power)) { + dev_err(&pdev->dev, "Couldn't get power register\n"); + return PTR_ERR(control_usb->power); + } + } + if (control_usb->type == OMAP_CTRL_TYPE_PIPE3) { control_usb->sys_clk = devm_clk_get(control_usb->dev, "sys_clkin"); if (IS_ERR(control_usb->sys_clk)) { @@ -243,20 +279,11 @@ static int omap_control_usb_probe(struct platform_device *pdev) } } - dev_set_drvdata(control_usb->dev, control_usb); return 0; } -#ifdef CONFIG_OF -static const struct of_device_id omap_control_usb_id_table[] = { - { .compatible = "ti,omap-control-usb" }, - {} -}; -MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); -#endif - static struct platform_driver omap_control_usb_driver = { .probe = omap_control_usb_probe, .driver = { diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index 4e8a0405f956..0824be42cd18 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -100,7 +100,7 @@ static int omap_usb3_suspend(struct usb_phy *x, int suspend) udelay(1); } while (--timeout); - omap_control_usb3_phy_power(phy->control_dev, 0); + omap_control_usb_phy_power(phy->control_dev, 0); phy->is_suspended = 1; } else if (!suspend && phy->is_suspended) { @@ -189,7 +189,7 @@ static int omap_usb3_init(struct usb_phy *x) if (ret) return ret; - omap_control_usb3_phy_power(phy->control_dev, 1); + omap_control_usb_phy_power(phy->control_dev, 1); return 0; } @@ -245,7 +245,7 @@ static int omap_usb3_probe(struct platform_device *pdev) return -ENODEV; } - omap_control_usb3_phy_power(phy->control_dev, 0); + omap_control_usb_phy_power(phy->control_dev, 0); usb_add_phy_dev(&phy->phy); platform_set_drvdata(pdev, phy); -- cgit v1.2.2