diff options
Diffstat (limited to 'drivers/mfd/omap-usb-host.c')
| -rw-r--r-- | drivers/mfd/omap-usb-host.c | 558 |
1 files changed, 332 insertions, 226 deletions
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 05164d7f054..6b5edf64de2 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -23,7 +23,6 @@ #include <linux/delay.h> #include <linux/clk.h> #include <linux/dma-mapping.h> -#include <linux/spinlock.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/platform_data/usb-omap.h> @@ -91,21 +90,23 @@ struct usbhs_hcd_omap { + int nports; + struct clk **utmi_clk; + struct clk **hsic60m_clk; + struct clk **hsic480m_clk; + struct clk *xclk60mhsp1_ck; struct clk *xclk60mhsp2_ck; - struct clk *utmi_p1_fck; - struct clk *usbhost_p1_fck; - struct clk *utmi_p2_fck; - struct clk *usbhost_p2_fck; + struct clk *utmi_p1_gfclk; + struct clk *utmi_p2_gfclk; struct clk *init_60m_fclk; struct clk *ehci_logic_fck; void __iomem *uhh_base; - struct usbhs_omap_platform_data platdata; + struct usbhs_omap_platform_data *pdata; u32 usbhs_rev; - spinlock_t lock; }; /*-------------------------------------------------------------------------*/ @@ -184,19 +185,13 @@ err_end: static int omap_usbhs_alloc_children(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct usbhs_hcd_omap *omap; - struct ehci_hcd_omap_platform_data *ehci_data; - struct ohci_hcd_omap_platform_data *ohci_data; + struct usbhs_omap_platform_data *pdata = dev->platform_data; struct platform_device *ehci; struct platform_device *ohci; struct resource *res; struct resource resources[2]; int ret; - omap = platform_get_drvdata(pdev); - ehci_data = omap->platdata.ehci_data; - ohci_data = omap->platdata.ohci_data; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ehci"); if (!res) { dev_err(dev, "EHCI get resource IORESOURCE_MEM failed\n"); @@ -213,8 +208,8 @@ static int omap_usbhs_alloc_children(struct platform_device *pdev) } resources[1] = *res; - ehci = omap_usbhs_alloc_child(OMAP_EHCI_DEVICE, resources, 2, ehci_data, - sizeof(*ehci_data), dev); + ehci = omap_usbhs_alloc_child(OMAP_EHCI_DEVICE, resources, 2, pdata, + sizeof(*pdata), dev); if (!ehci) { dev_err(dev, "omap_usbhs_alloc_child failed\n"); @@ -238,8 +233,8 @@ static int omap_usbhs_alloc_children(struct platform_device *pdev) } resources[1] = *res; - ohci = omap_usbhs_alloc_child(OMAP_OHCI_DEVICE, resources, 2, ohci_data, - sizeof(*ohci_data), dev); + ohci = omap_usbhs_alloc_child(OMAP_OHCI_DEVICE, resources, 2, pdata, + sizeof(*pdata), dev); if (!ohci) { dev_err(dev, "omap_usbhs_alloc_child failed\n"); ret = -ENOMEM; @@ -278,31 +273,52 @@ static bool is_ohci_port(enum usbhs_omap_port_mode pmode) static int usbhs_runtime_resume(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags; + struct usbhs_omap_platform_data *pdata = omap->pdata; + int i, r; dev_dbg(dev, "usbhs_runtime_resume\n"); - if (!pdata) { - dev_dbg(dev, "missing platform_data\n"); - return -ENODEV; - } - omap_tll_enable(); - spin_lock_irqsave(&omap->lock, flags); - if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) + if (!IS_ERR(omap->ehci_logic_fck)) clk_enable(omap->ehci_logic_fck); - if (is_ehci_tll_mode(pdata->port_mode[0])) - clk_enable(omap->usbhost_p1_fck); - if (is_ehci_tll_mode(pdata->port_mode[1])) - clk_enable(omap->usbhost_p2_fck); - - clk_enable(omap->utmi_p1_fck); - clk_enable(omap->utmi_p2_fck); + for (i = 0; i < omap->nports; i++) { + switch (pdata->port_mode[i]) { + case OMAP_EHCI_PORT_MODE_HSIC: + if (!IS_ERR(omap->hsic60m_clk[i])) { + r = clk_enable(omap->hsic60m_clk[i]); + if (r) { + dev_err(dev, + "Can't enable port %d hsic60m clk:%d\n", + i, r); + } + } - spin_unlock_irqrestore(&omap->lock, flags); + if (!IS_ERR(omap->hsic480m_clk[i])) { + r = clk_enable(omap->hsic480m_clk[i]); + if (r) { + dev_err(dev, + "Can't enable port %d hsic480m clk:%d\n", + i, r); + } + } + /* Fall through as HSIC mode needs utmi_clk */ + + case OMAP_EHCI_PORT_MODE_TLL: + if (!IS_ERR(omap->utmi_clk[i])) { + r = clk_enable(omap->utmi_clk[i]); + if (r) { + dev_err(dev, + "Can't enable port %d clk : %d\n", + i, r); + } + } + break; + default: + break; + } + } return 0; } @@ -310,51 +326,122 @@ static int usbhs_runtime_resume(struct device *dev) static int usbhs_runtime_suspend(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags; + struct usbhs_omap_platform_data *pdata = omap->pdata; + int i; dev_dbg(dev, "usbhs_runtime_suspend\n"); - if (!pdata) { - dev_dbg(dev, "missing platform_data\n"); - return -ENODEV; - } - - spin_lock_irqsave(&omap->lock, flags); + for (i = 0; i < omap->nports; i++) { + switch (pdata->port_mode[i]) { + case OMAP_EHCI_PORT_MODE_HSIC: + if (!IS_ERR(omap->hsic60m_clk[i])) + clk_disable(omap->hsic60m_clk[i]); - if (is_ehci_tll_mode(pdata->port_mode[0])) - clk_disable(omap->usbhost_p1_fck); - if (is_ehci_tll_mode(pdata->port_mode[1])) - clk_disable(omap->usbhost_p2_fck); + if (!IS_ERR(omap->hsic480m_clk[i])) + clk_disable(omap->hsic480m_clk[i]); + /* Fall through as utmi_clks were used in HSIC mode */ - clk_disable(omap->utmi_p2_fck); - clk_disable(omap->utmi_p1_fck); + case OMAP_EHCI_PORT_MODE_TLL: + if (!IS_ERR(omap->utmi_clk[i])) + clk_disable(omap->utmi_clk[i]); + break; + default: + break; + } + } - if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck)) + if (!IS_ERR(omap->ehci_logic_fck)) clk_disable(omap->ehci_logic_fck); - spin_unlock_irqrestore(&omap->lock, flags); omap_tll_disable(); return 0; } +static unsigned omap_usbhs_rev1_hostconfig(struct usbhs_hcd_omap *omap, + unsigned reg) +{ + struct usbhs_omap_platform_data *pdata = omap->pdata; + int i; + + for (i = 0; i < omap->nports; i++) { + switch (pdata->port_mode[i]) { + case OMAP_USBHS_PORT_MODE_UNUSED: + reg &= ~(OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS << i); + break; + case OMAP_EHCI_PORT_MODE_PHY: + if (pdata->single_ulpi_bypass) + break; + + if (i == 0) + reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS; + else + reg &= ~(OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS + << (i-1)); + break; + default: + if (pdata->single_ulpi_bypass) + break; + + if (i == 0) + reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS; + else + reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS + << (i-1); + break; + } + } + + if (pdata->single_ulpi_bypass) { + /* bypass ULPI only if none of the ports use PHY mode */ + reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS; + + for (i = 0; i < omap->nports; i++) { + if (is_ehci_phy_mode(pdata->port_mode[i])) { + reg &= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS; + break; + } + } + } + + return reg; +} + +static unsigned omap_usbhs_rev2_hostconfig(struct usbhs_hcd_omap *omap, + unsigned reg) +{ + struct usbhs_omap_platform_data *pdata = omap->pdata; + int i; + + for (i = 0; i < omap->nports; i++) { + /* Clear port mode fields for PHY mode */ + reg &= ~(OMAP4_P1_MODE_CLEAR << 2 * i); + + if (is_ehci_tll_mode(pdata->port_mode[i]) || + (is_ohci_port(pdata->port_mode[i]))) + reg |= OMAP4_P1_MODE_TLL << 2 * i; + else if (is_ehci_hsic_mode(pdata->port_mode[i])) + reg |= OMAP4_P1_MODE_HSIC << 2 * i; + } + + return reg; +} + static void omap_usbhs_init(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - unsigned long flags; + struct usbhs_omap_platform_data *pdata = omap->pdata; unsigned reg; dev_dbg(dev, "starting TI HSUSB Controller\n"); - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_request_one(pdata->ehci_data->reset_gpio_port[0], + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_request_one(pdata->ehci_data->reset_gpio_port[1], + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); /* Hold the PHY in RESET for enough time till DIR is high */ @@ -362,9 +449,6 @@ static void omap_usbhs_init(struct device *dev) } pm_runtime_get_sync(dev); - spin_lock_irqsave(&omap->lock, flags); - omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION); - dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev); reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG); /* setup ULPI bypass and burst configurations */ @@ -374,89 +458,51 @@ static void omap_usbhs_init(struct device *dev) reg |= OMAP4_UHH_HOSTCONFIG_APP_START_CLK; reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN; - if (is_omap_usbhs_rev1(omap)) { - if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED) - reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS; - if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED) - reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS; - if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED) - reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS; - - /* Bypass the TLL module for PHY mode operation */ - if (pdata->single_ulpi_bypass) { - dev_dbg(dev, "OMAP3 ES version <= ES2.1\n"); - if (is_ehci_phy_mode(pdata->port_mode[0]) || - is_ehci_phy_mode(pdata->port_mode[1]) || - is_ehci_phy_mode(pdata->port_mode[2])) - reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS; - else - reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS; - } else { - dev_dbg(dev, "OMAP3 ES version > ES2.1\n"); - if (is_ehci_phy_mode(pdata->port_mode[0])) - reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS; - else - reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS; - if (is_ehci_phy_mode(pdata->port_mode[1])) - reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS; - else - reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS; - if (is_ehci_phy_mode(pdata->port_mode[2])) - reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS; - else - reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS; - } - } else if (is_omap_usbhs_rev2(omap)) { - /* Clear port mode fields for PHY mode*/ - reg &= ~OMAP4_P1_MODE_CLEAR; - reg &= ~OMAP4_P2_MODE_CLEAR; + switch (omap->usbhs_rev) { + case OMAP_USBHS_REV1: + omap_usbhs_rev1_hostconfig(omap, reg); + break; - if (is_ehci_tll_mode(pdata->port_mode[0]) || - (is_ohci_port(pdata->port_mode[0]))) - reg |= OMAP4_P1_MODE_TLL; - else if (is_ehci_hsic_mode(pdata->port_mode[0])) - reg |= OMAP4_P1_MODE_HSIC; + case OMAP_USBHS_REV2: + omap_usbhs_rev2_hostconfig(omap, reg); + break; - if (is_ehci_tll_mode(pdata->port_mode[1]) || - (is_ohci_port(pdata->port_mode[1]))) - reg |= OMAP4_P2_MODE_TLL; - else if (is_ehci_hsic_mode(pdata->port_mode[1])) - reg |= OMAP4_P2_MODE_HSIC; + default: /* newer revisions */ + omap_usbhs_rev2_hostconfig(omap, reg); + break; } usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg); dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg); - spin_unlock_irqrestore(&omap->lock, flags); - pm_runtime_put_sync(dev); - if (pdata->ehci_data->phy_reset) { + if (pdata->phy_reset) { /* Hold the PHY in RESET for enough time till * PHY is settled and ready */ udelay(10); - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) + if (gpio_is_valid(pdata->reset_gpio_port[0])) gpio_set_value_cansleep - (pdata->ehci_data->reset_gpio_port[0], 1); + (pdata->reset_gpio_port[0], 1); - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) + if (gpio_is_valid(pdata->reset_gpio_port[1])) gpio_set_value_cansleep - (pdata->ehci_data->reset_gpio_port[1], 1); + (pdata->reset_gpio_port[1], 1); } } static void omap_usbhs_deinit(struct device *dev) { struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; + struct usbhs_omap_platform_data *pdata = omap->pdata; - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_free(pdata->ehci_data->reset_gpio_port[0]); + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_free(pdata->reset_gpio_port[0]); - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_free(pdata->ehci_data->reset_gpio_port[1]); + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_free(pdata->reset_gpio_port[1]); } } @@ -474,137 +520,185 @@ static int usbhs_omap_probe(struct platform_device *pdev) struct resource *res; int ret = 0; int i; + bool need_logic_fck; if (!pdata) { dev_err(dev, "Missing platform data\n"); - ret = -ENOMEM; - goto end_probe; + return -ENODEV; } - omap = kzalloc(sizeof(*omap), GFP_KERNEL); + omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL); if (!omap) { dev_err(dev, "Memory allocation failed\n"); - ret = -ENOMEM; - goto end_probe; + return -ENOMEM; } - spin_lock_init(&omap->lock); - - for (i = 0; i < OMAP3_HS_USB_PORTS; i++) - omap->platdata.port_mode[i] = pdata->port_mode[i]; + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh"); + omap->uhh_base = devm_request_and_ioremap(dev, res); + if (!omap->uhh_base) { + dev_err(dev, "Resource request/ioremap failed\n"); + return -EADDRNOTAVAIL; + } - omap->platdata.ehci_data = pdata->ehci_data; - omap->platdata.ohci_data = pdata->ohci_data; + omap->pdata = pdata; pm_runtime_enable(dev); + platform_set_drvdata(pdev, omap); + pm_runtime_get_sync(dev); + + omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION); - for (i = 0; i < OMAP3_HS_USB_PORTS; i++) - if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) || - is_ehci_hsic_mode(i)) { - omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck"); - if (IS_ERR(omap->ehci_logic_fck)) { - ret = PTR_ERR(omap->ehci_logic_fck); - dev_warn(dev, "ehci_logic_fck failed:%d\n", - ret); - } + /* we need to call runtime suspend before we update omap->nports + * to prevent unbalanced clk_disable() + */ + pm_runtime_put_sync(dev); + + /* + * If platform data contains nports then use that + * else make out number of ports from USBHS revision + */ + if (pdata->nports) { + omap->nports = pdata->nports; + } else { + switch (omap->usbhs_rev) { + case OMAP_USBHS_REV1: + omap->nports = 3; + break; + case OMAP_USBHS_REV2: + omap->nports = 2; + break; + default: + omap->nports = OMAP3_HS_USB_PORTS; + dev_dbg(dev, + "USB HOST Rev:0x%d not recognized, assuming %d ports\n", + omap->usbhs_rev, omap->nports); break; } + } - omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); - if (IS_ERR(omap->utmi_p1_fck)) { - ret = PTR_ERR(omap->utmi_p1_fck); - dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); - goto err_end; + i = sizeof(struct clk *) * omap->nports; + omap->utmi_clk = devm_kzalloc(dev, i, GFP_KERNEL); + omap->hsic480m_clk = devm_kzalloc(dev, i, GFP_KERNEL); + omap->hsic60m_clk = devm_kzalloc(dev, i, GFP_KERNEL); + + if (!omap->utmi_clk || !omap->hsic480m_clk || !omap->hsic60m_clk) { + dev_err(dev, "Memory allocation failed\n"); + ret = -ENOMEM; + goto err_mem; + } + + need_logic_fck = false; + for (i = 0; i < omap->nports; i++) { + if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) || + is_ehci_hsic_mode(i)) + need_logic_fck |= true; + } + + omap->ehci_logic_fck = ERR_PTR(-EINVAL); + if (need_logic_fck) { + omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck"); + if (IS_ERR(omap->ehci_logic_fck)) { + ret = PTR_ERR(omap->ehci_logic_fck); + dev_dbg(dev, "ehci_logic_fck failed:%d\n", ret); + } + } + + omap->utmi_p1_gfclk = clk_get(dev, "utmi_p1_gfclk"); + if (IS_ERR(omap->utmi_p1_gfclk)) { + ret = PTR_ERR(omap->utmi_p1_gfclk); + dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); + goto err_p1_gfclk; + } + + omap->utmi_p2_gfclk = clk_get(dev, "utmi_p2_gfclk"); + if (IS_ERR(omap->utmi_p2_gfclk)) { + ret = PTR_ERR(omap->utmi_p2_gfclk); + dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); + goto err_p2_gfclk; } omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck"); if (IS_ERR(omap->xclk60mhsp1_ck)) { ret = PTR_ERR(omap->xclk60mhsp1_ck); dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret); - goto err_utmi_p1_fck; - } - - omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk"); - if (IS_ERR(omap->utmi_p2_fck)) { - ret = PTR_ERR(omap->utmi_p2_fck); - dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); - goto err_xclk60mhsp1_ck; + goto err_xclk60mhsp1; } omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck"); if (IS_ERR(omap->xclk60mhsp2_ck)) { ret = PTR_ERR(omap->xclk60mhsp2_ck); dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret); - goto err_utmi_p2_fck; - } - - omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk"); - if (IS_ERR(omap->usbhost_p1_fck)) { - ret = PTR_ERR(omap->usbhost_p1_fck); - dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret); - goto err_xclk60mhsp2_ck; - } - - omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk"); - if (IS_ERR(omap->usbhost_p2_fck)) { - ret = PTR_ERR(omap->usbhost_p2_fck); - dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret); - goto err_usbhost_p1_fck; + goto err_xclk60mhsp2; } omap->init_60m_fclk = clk_get(dev, "init_60m_fclk"); if (IS_ERR(omap->init_60m_fclk)) { ret = PTR_ERR(omap->init_60m_fclk); dev_err(dev, "init_60m_fclk failed error:%d\n", ret); - goto err_usbhost_p2_fck; + goto err_init60m; + } + + for (i = 0; i < omap->nports; i++) { + char clkname[30]; + + /* clock names are indexed from 1*/ + snprintf(clkname, sizeof(clkname), + "usb_host_hs_utmi_p%d_clk", i + 1); + + /* If a clock is not found we won't bail out as not all + * platforms have all clocks and we can function without + * them + */ + omap->utmi_clk[i] = clk_get(dev, clkname); + if (IS_ERR(omap->utmi_clk[i])) + dev_dbg(dev, "Failed to get clock : %s : %ld\n", + clkname, PTR_ERR(omap->utmi_clk[i])); + + snprintf(clkname, sizeof(clkname), + "usb_host_hs_hsic480m_p%d_clk", i + 1); + omap->hsic480m_clk[i] = clk_get(dev, clkname); + if (IS_ERR(omap->hsic480m_clk[i])) + dev_dbg(dev, "Failed to get clock : %s : %ld\n", + clkname, PTR_ERR(omap->hsic480m_clk[i])); + + snprintf(clkname, sizeof(clkname), + "usb_host_hs_hsic60m_p%d_clk", i + 1); + omap->hsic60m_clk[i] = clk_get(dev, clkname); + if (IS_ERR(omap->hsic60m_clk[i])) + dev_dbg(dev, "Failed to get clock : %s : %ld\n", + clkname, PTR_ERR(omap->hsic60m_clk[i])); } if (is_ehci_phy_mode(pdata->port_mode[0])) { - /* for OMAP3 , the clk set paretn fails */ - ret = clk_set_parent(omap->utmi_p1_fck, + /* for OMAP3, clk_set_parent fails */ + ret = clk_set_parent(omap->utmi_p1_gfclk, omap->xclk60mhsp1_ck); if (ret != 0) - dev_err(dev, "xclk60mhsp1_ck set parent" - "failed error:%d\n", ret); + dev_dbg(dev, "xclk60mhsp1_ck set parent failed: %d\n", + ret); } else if (is_ehci_tll_mode(pdata->port_mode[0])) { - ret = clk_set_parent(omap->utmi_p1_fck, + ret = clk_set_parent(omap->utmi_p1_gfclk, omap->init_60m_fclk); if (ret != 0) - dev_err(dev, "init_60m_fclk set parent" - "failed error:%d\n", ret); + dev_dbg(dev, "P0 init_60m_fclk set parent failed: %d\n", + ret); } if (is_ehci_phy_mode(pdata->port_mode[1])) { - ret = clk_set_parent(omap->utmi_p2_fck, + ret = clk_set_parent(omap->utmi_p2_gfclk, omap->xclk60mhsp2_ck); if (ret != 0) - dev_err(dev, "xclk60mhsp2_ck set parent" - "failed error:%d\n", ret); + dev_dbg(dev, "xclk60mhsp2_ck set parent failed: %d\n", + ret); } else if (is_ehci_tll_mode(pdata->port_mode[1])) { - ret = clk_set_parent(omap->utmi_p2_fck, + ret = clk_set_parent(omap->utmi_p2_gfclk, omap->init_60m_fclk); if (ret != 0) - dev_err(dev, "init_60m_fclk set parent" - "failed error:%d\n", ret); - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh"); - if (!res) { - dev_err(dev, "UHH EHCI get resource failed\n"); - ret = -ENODEV; - goto err_init_60m_fclk; - } - - omap->uhh_base = ioremap(res->start, resource_size(res)); - if (!omap->uhh_base) { - dev_err(dev, "UHH ioremap failed\n"); - ret = -ENOMEM; - goto err_init_60m_fclk; + dev_dbg(dev, "P1 init_60m_fclk set parent failed: %d\n", + ret); } - platform_set_drvdata(pdev, omap); - omap_usbhs_init(dev); ret = omap_usbhs_alloc_children(pdev); if (ret) { @@ -612,39 +706,41 @@ static int usbhs_omap_probe(struct platform_device *pdev) goto err_alloc; } - goto end_probe; + return 0; err_alloc: omap_usbhs_deinit(&pdev->dev); - iounmap(omap->uhh_base); - -err_init_60m_fclk: - clk_put(omap->init_60m_fclk); -err_usbhost_p2_fck: - clk_put(omap->usbhost_p2_fck); + for (i = 0; i < omap->nports; i++) { + if (!IS_ERR(omap->utmi_clk[i])) + clk_put(omap->utmi_clk[i]); + if (!IS_ERR(omap->hsic60m_clk[i])) + clk_put(omap->hsic60m_clk[i]); + if (!IS_ERR(omap->hsic480m_clk[i])) + clk_put(omap->hsic480m_clk[i]); + } -err_usbhost_p1_fck: - clk_put(omap->usbhost_p1_fck); + clk_put(omap->init_60m_fclk); -err_xclk60mhsp2_ck: +err_init60m: clk_put(omap->xclk60mhsp2_ck); -err_utmi_p2_fck: - clk_put(omap->utmi_p2_fck); - -err_xclk60mhsp1_ck: +err_xclk60mhsp2: clk_put(omap->xclk60mhsp1_ck); -err_utmi_p1_fck: - clk_put(omap->utmi_p1_fck); +err_xclk60mhsp1: + clk_put(omap->utmi_p2_gfclk); -err_end: - clk_put(omap->ehci_logic_fck); +err_p2_gfclk: + clk_put(omap->utmi_p1_gfclk); + +err_p1_gfclk: + if (!IS_ERR(omap->ehci_logic_fck)) + clk_put(omap->ehci_logic_fck); + +err_mem: pm_runtime_disable(dev); - kfree(omap); -end_probe: return ret; } @@ -657,19 +753,29 @@ end_probe: static int usbhs_omap_remove(struct platform_device *pdev) { struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev); + int i; omap_usbhs_deinit(&pdev->dev); - iounmap(omap->uhh_base); + + for (i = 0; i < omap->nports; i++) { + if (!IS_ERR(omap->utmi_clk[i])) + clk_put(omap->utmi_clk[i]); + if (!IS_ERR(omap->hsic60m_clk[i])) + clk_put(omap->hsic60m_clk[i]); + if (!IS_ERR(omap->hsic480m_clk[i])) + clk_put(omap->hsic480m_clk[i]); + } + clk_put(omap->init_60m_fclk); - clk_put(omap->usbhost_p2_fck); - clk_put(omap->usbhost_p1_fck); + clk_put(omap->utmi_p1_gfclk); + clk_put(omap->utmi_p2_gfclk); clk_put(omap->xclk60mhsp2_ck); - clk_put(omap->utmi_p2_fck); clk_put(omap->xclk60mhsp1_ck); - clk_put(omap->utmi_p1_fck); - clk_put(omap->ehci_logic_fck); + + if (!IS_ERR(omap->ehci_logic_fck)) + clk_put(omap->ehci_logic_fck); + pm_runtime_disable(&pdev->dev); - kfree(omap); return 0; } @@ -685,7 +791,7 @@ static struct platform_driver usbhs_omap_driver = { .owner = THIS_MODULE, .pm = &usbhsomap_dev_pm_ops, }, - .remove = __exit_p(usbhs_omap_remove), + .remove = usbhs_omap_remove, }; MODULE_AUTHOR("Keshava Munegowda <keshava_mgowda@ti.com>"); |