From 4fd06af96b9397fc54eb6b1a013a60c34693eef0 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Thu, 3 Oct 2013 18:12:30 +0300 Subject: usb: phy: omap-control: Get rid of platform data omap-control device is present from OMAP4 onwards which support device tree boots only. So get rid of platform data. Signed-off-by: Roger Quadros Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/omap_control_usb.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux/usb/omap_control_usb.h') diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h index 27b5b8c931b0..e2416b45169b 100644 --- a/include/linux/usb/omap_control_usb.h +++ b/include/linux/usb/omap_control_usb.h @@ -31,10 +31,6 @@ struct omap_control_usb { u32 type; }; -struct omap_control_usb_platform_data { - u8 type; -}; - enum omap_control_usb_mode { USB_MODE_UNDEFINED = 0, USB_MODE_HOST, -- cgit v1.2.3 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 --- Documentation/devicetree/bindings/usb/omap-usb.txt | 30 ++-- drivers/usb/phy/phy-omap-control.c | 173 ++++++++++++--------- drivers/usb/phy/phy-omap-usb3.c | 6 +- include/linux/usb/omap_control_usb.h | 24 +-- 4 files changed, 130 insertions(+), 103 deletions(-) (limited to 'include/linux/usb/omap_control_usb.h') diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt index 661cb06a9063..9add35c37ebc 100644 --- a/Documentation/devicetree/bindings/usb/omap-usb.txt +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt @@ -83,22 +83,22 @@ omap_dwc3 { OMAP CONTROL USB Required properties: - - compatible: Should be "ti,omap-control-usb" + - compatible: Should be one of + "ti,control-phy-otghs" - if it has otghs_control mailbox register as on OMAP4. + "ti,control-phy-usb2" - if it has Power down bit in control_dev_conf register + e.g. USB2_PHY on OMAP5. + "ti,control-phy-pipe3" - if it has DPLL and individual Rx & Tx power control + e.g. USB3 PHY and SATA PHY on OMAP5. + "ti,control-phy-dra7usb2" - if it has power down register like USB2 PHY on + DRA7 platform. - reg : Address and length of the register set for the device. It contains - the address of "control_dev_conf" and "otghs_control" or "phy_power_usb" - depending upon omap4 or omap5. - - reg-names: The names of the register addresses corresponding to the registers - filled in "reg". - - ti,type: This is used to differentiate whether the control module has - usb mailbox or usb3 phy power. omap4 has usb mailbox in control module to - notify events to the musb core and omap5 has usb3 phy power register to - power on usb3 phy. Should be "1" if it has mailbox and "2" if it has usb3 - phy power. + the address of "otghs_control" for control-phy-otghs or "power" register + for other types. + - reg-names: should be "otghs_control" control-phy-otghs and "power" for + other types. omap_control_usb: omap-control-usb@4a002300 { - compatible = "ti,omap-control-usb"; - reg = <0x4a002300 0x4>, - <0x4a00233c 0x4>; - reg-names = "control_dev_conf", "otghs_control"; - ti,type = <1>; + compatible = "ti,control-phy-otghs"; + reg = <0x4a00233c 0x4>; + reg-names = "otghs_control"; }; 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); diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h index e2416b45169b..61b889a9c67b 100644 --- a/include/linux/usb/omap_control_usb.h +++ b/include/linux/usb/omap_control_usb.h @@ -19,16 +19,23 @@ #ifndef __OMAP_CONTROL_USB_H__ #define __OMAP_CONTROL_USB_H__ +enum omap_control_usb_type { + OMAP_CTRL_TYPE_OTGHS = 1, /* Mailbox OTGHS_CONTROL */ + OMAP_CTRL_TYPE_USB2, /* USB2_PHY, power down in CONTROL_DEV_CONF */ + OMAP_CTRL_TYPE_PIPE3, /* PIPE3 PHY, DPLL & seperate Rx/Tx power */ + OMAP_CTRL_TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */ +}; + struct omap_control_usb { struct device *dev; - u32 __iomem *dev_conf; u32 __iomem *otghs_control; - u32 __iomem *phy_power; + u32 __iomem *power; + u32 __iomem *power_aux; struct clk *sys_clk; - u32 type; + enum omap_control_usb_type type; }; enum omap_control_usb_mode { @@ -38,10 +45,6 @@ enum omap_control_usb_mode { USB_MODE_DISCONNECT, }; -/* To differentiate ctrl module IP having either mailbox or USB3 PHY power */ -#define OMAP_CTRL_DEV_TYPE1 0x1 -#define OMAP_CTRL_DEV_TYPE2 0x2 - #define OMAP_CTRL_DEV_PHY_PD BIT(0) #define OMAP_CTRL_DEV_AVALID BIT(0) @@ -59,10 +62,11 @@ enum omap_control_usb_mode { #define OMAP_CTRL_USB3_PHY_TX_RX_POWERON 0x3 #define OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF 0x0 +#define OMAP_CTRL_USB2_PHY_PD BIT(28) + #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB) extern struct device *omap_get_control_dev(void); extern void omap_control_usb_phy_power(struct device *dev, int on); -extern void omap_control_usb3_phy_power(struct device *dev, bool on); extern void omap_control_usb_set_mode(struct device *dev, enum omap_control_usb_mode mode); #else @@ -75,10 +79,6 @@ static inline void omap_control_usb_phy_power(struct device *dev, int on) { } -static inline void omap_control_usb3_phy_power(struct device *dev, int on) -{ -} - static inline void omap_control_usb_set_mode(struct device *dev, enum omap_control_usb_mode mode) { -- cgit v1.2.3 From 0bb85dc2d3f7117b6686661aba4a88dedead0c8a Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Thu, 3 Oct 2013 18:12:35 +0300 Subject: usb: phy: omap: get rid of omap_get_control_dev() This function was preventing us from supporting multiple instances. Get rid of it. Since we support DT boots only, users can get the control device phandle from the DT node. Signed-off-by: Roger Quadros Signed-off-by: Greg Kroah-Hartman --- drivers/usb/phy/phy-omap-control.c | 31 ++++++++++--------------------- include/linux/usb/omap_control_usb.h | 5 ----- 2 files changed, 10 insertions(+), 26 deletions(-) (limited to 'include/linux/usb/omap_control_usb.h') diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c index 1c8a7c5ccb9b..09c5ace1edd8 100644 --- a/drivers/usb/phy/phy-omap-control.c +++ b/drivers/usb/phy/phy-omap-control.c @@ -26,26 +26,6 @@ #include #include -static struct omap_control_usb *control_usb; - -/** - * omap_get_control_dev - returns the device pointer for this control device - * - * This API should be called to get the device pointer for this control - * module device. This device pointer should be used for called other - * exported API's in this driver. - * - * To be used by PHY driver and glue driver. - */ -struct device *omap_get_control_dev(void) -{ - if (!control_usb) - return ERR_PTR(-ENODEV); - - return control_usb->dev; -} -EXPORT_SYMBOL_GPL(omap_get_control_dev); - /** * omap_control_usb_phy_power - power on/off the phy using control module reg * @dev: the control module device @@ -182,11 +162,19 @@ void omap_control_usb_set_mode(struct device *dev, { struct omap_control_usb *ctrl_usb; - if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_TYPE_OTGHS) + if (IS_ERR(dev) || !dev) return; ctrl_usb = dev_get_drvdata(dev); + if (!ctrl_usb) { + dev_err(dev, "Invalid control usb device\n"); + return; + } + + if (ctrl_usb->type != OMAP_CTRL_TYPE_OTGHS) + return; + switch (mode) { case USB_MODE_HOST: omap_control_usb_host_mode(ctrl_usb); @@ -237,6 +225,7 @@ static int omap_control_usb_probe(struct platform_device *pdev) { struct resource *res; const struct of_device_id *of_id; + struct omap_control_usb *control_usb; of_id = of_match_device(of_match_ptr(omap_control_usb_id_table), &pdev->dev); diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h index 61b889a9c67b..596b01918813 100644 --- a/include/linux/usb/omap_control_usb.h +++ b/include/linux/usb/omap_control_usb.h @@ -65,15 +65,10 @@ enum omap_control_usb_mode { #define OMAP_CTRL_USB2_PHY_PD BIT(28) #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB) -extern struct device *omap_get_control_dev(void); extern void omap_control_usb_phy_power(struct device *dev, int on); extern void omap_control_usb_set_mode(struct device *dev, enum omap_control_usb_mode mode); #else -static inline struct device *omap_get_control_dev(void) -{ - return ERR_PTR(-ENODEV); -} static inline void omap_control_usb_phy_power(struct device *dev, int on) { -- cgit v1.2.3