diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/Kconfig | 42 | ||||
| -rw-r--r-- | drivers/usb/host/Makefile | 5 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-atmel.c | 88 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 9 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 30 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-msm.c | 91 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-mv.c | 54 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-orion.c | 82 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-s5p.c | 166 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-spear.c | 115 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 24 | ||||
| -rw-r--r-- | drivers/usb/host/ehci.h | 1 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-exynos.c | 2 |
14 files changed, 342 insertions, 370 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 2f682219e257..dbeac41595de 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -163,8 +163,35 @@ config USB_EHCI_HCD_OMAP Enables support for the on-chip EHCI controller on OMAP3 and later chips. +config USB_EHCI_HCD_ORION + tristate "Support for Marvell EBU on-chip EHCI USB controller" + depends on USB_EHCI_HCD && PLAT_ORION + default y + ---help--- + Enables support for the on-chip EHCI controller on Marvell's + embedded ARM SoCs, including Orion, Kirkwood, Dove, Armada XP, + Armada 370. This is different from the EHCI implementation + on Marvell's mobile PXA and MMP SoC, see "EHCI support for + Marvell PXA/MMP USB controller" for those. + +config USB_EHCI_HCD_SPEAR + tristate "Support for ST SPEAr on-chip EHCI USB controller" + depends on USB_EHCI_HCD && PLAT_SPEAR + default y + ---help--- + Enables support for the on-chip EHCI controller on + ST SPEAr chips. + +config USB_EHCI_HCD_AT91 + tristate "Support for Atmel on-chip EHCI USB controller" + depends on USB_EHCI_HCD && ARCH_AT91 + default y + ---help--- + Enables support for the on-chip EHCI controller on + Atmel chips. + config USB_EHCI_MSM - bool "Support for MSM on-chip EHCI USB controller" + tristate "Support for Qualcomm QSD/MSM on-chip EHCI USB controller" depends on USB_EHCI_HCD && ARCH_MSM select USB_EHCI_ROOT_HUB_TT select USB_MSM_OTG @@ -180,6 +207,7 @@ config USB_EHCI_TEGRA boolean "NVIDIA Tegra HCD support" depends on USB_EHCI_HCD && ARCH_TEGRA select USB_EHCI_ROOT_HUB_TT + select USB_PHY help This driver enables support for the internal USB Host Controllers found in NVIDIA Tegra SoCs. The controllers are EHCI compliant. @@ -200,19 +228,24 @@ config USB_EHCI_SH If you use the PCI EHCI controller, this option is not necessary. config USB_EHCI_S5P - boolean "S5P EHCI support" + tristate "EHCI support for Samsung S5P/EXYNOS SoC Series" depends on USB_EHCI_HCD && PLAT_S5P help - Enable support for the S5P SOC's on-chip EHCI controller. + Enable support for the Samsung S5Pxxxx and Exynos3/4/5 SOC's + on-chip EHCI controller. config USB_EHCI_MV - bool "EHCI support for Marvell on-chip controller" + bool "EHCI support for Marvell PXA/MMP USB controller" depends on USB_EHCI_HCD && (ARCH_PXA || ARCH_MMP) select USB_EHCI_ROOT_HUB_TT ---help--- Enables support for Marvell (including PXA and MMP series) on-chip USB SPH and OTG controller. SPH is a single port host, and it can only be EHCI host. OTG is controller that can switch to host mode. + Note that this driver will not work on Marvell's other EHCI + controller used by the EBU-type SoCs including Orion, Kirkwood, + Dova, Armada 370 and Armada XP. See "Support for Marvell EBU + on-chip EHCI USB controller" for those. config USB_W90X900_EHCI bool "W90X900(W90P910) EHCI support" @@ -301,7 +334,6 @@ config USB_OHCI_HCD tristate "OHCI HCD support" depends on USB && USB_ARCH_HAS_OHCI select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 - select USB_OTG_UTILS if ARCH_OMAP depends on USB_ISP1301 || !ARCH_LPC32XX ---help--- The Open Host Controller Interface (OHCI) is a standard for accessing diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 56de4106c8b3..4fb73c156d72 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -28,6 +28,11 @@ obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o obj-$(CONFIG_USB_EHCI_HCD_OMAP) += ehci-omap.o +obj-$(CONFIG_USB_EHCI_HCD_ORION) += ehci-orion.o +obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci-spear.o +obj-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o +obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o +obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index f3beac4d06b8..66420097c242 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -12,9 +12,22 @@ */ #include <linux/clk.h> -#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ehci.h" + +#define DRIVER_DESC "EHCI Atmel driver" + +static const char hcd_name[] = "ehci-atmel"; +static struct hc_driver __read_mostly ehci_atmel_hc_driver; /* interface and function clocks */ static struct clk *iclk, *fclk; @@ -50,51 +63,6 @@ static void atmel_stop_ehci(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int ehci_atmel_setup(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - - /* registers start at offset 0x0 */ - ehci->caps = hcd->regs; - - return ehci_setup(hcd); -} - -static const struct hc_driver ehci_atmel_hc_driver = { - .description = hcd_name, - .product_desc = "Atmel EHCI UHP HS", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* generic hardware linkage */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* basic lifecycle operations */ - .reset = ehci_atmel_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* managing i/o requests and associated device resources */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* scheduling support */ - .get_frame_number = ehci_get_frame, - - /* root hub support */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - static u64 at91_ehci_dma_mask = DMA_BIT_MASK(32); static int ehci_atmel_drv_probe(struct platform_device *pdev) @@ -102,6 +70,7 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) struct usb_hcd *hcd; const struct hc_driver *driver = &ehci_atmel_hc_driver; struct resource *res; + struct ehci_hcd *ehci; int irq; int retval; @@ -162,6 +131,10 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) goto fail_request_resource; } + ehci = hcd_to_ehci(hcd); + /* registers start at offset 0x0 */ + ehci->caps = hcd->regs; + atmel_start_ehci(pdev); retval = usb_add_hcd(hcd, irq, IRQF_SHARED); @@ -185,7 +158,6 @@ static int ehci_atmel_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - ehci_shutdown(hcd); usb_remove_hcd(hcd); usb_put_hcd(hcd); @@ -213,3 +185,25 @@ static struct platform_driver ehci_atmel_driver = { .of_match_table = of_match_ptr(atmel_ehci_dt_ids), }, }; + +static int __init ehci_atmel_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ehci_init_driver(&ehci_atmel_hc_driver, NULL); + return platform_driver_register(&ehci_atmel_driver); +} +module_init(ehci_atmel_init); + +static void __exit ehci_atmel_cleanup(void) +{ + platform_driver_unregister(&ehci_atmel_driver); +} +module_exit(ehci_atmel_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_ALIAS("platform:atmel-ehci"); +MODULE_AUTHOR("Nicolas Ferre"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index d81d2fcbff18..3be3df233a0e 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -370,6 +370,15 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; +#ifdef CONFIG_PPC_83xx + /* + * Deal with MPC834X that need port power to be cycled after the power + * fault condition is removed. Otherwise the state machine does not + * reflect PORTSC[CSC] correctly. + */ + ehci->need_oc_pp_cycle = 1; +#endif + hcd->has_tt = 1; retval = ehci_setup(hcd); diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index b12b97d2ccaf..2e0c2bd6495f 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1249,36 +1249,16 @@ MODULE_LICENSE ("GPL"); #define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver #endif -#ifdef CONFIG_PLAT_ORION -#include "ehci-orion.c" -#define PLATFORM_DRIVER ehci_orion_driver -#endif - #ifdef CONFIG_USB_W90X900_EHCI #include "ehci-w90x900.c" #define PLATFORM_DRIVER ehci_hcd_w90x900_driver #endif -#ifdef CONFIG_ARCH_AT91 -#include "ehci-atmel.c" -#define PLATFORM_DRIVER ehci_atmel_driver -#endif - #ifdef CONFIG_USB_OCTEON_EHCI #include "ehci-octeon.c" #define PLATFORM_DRIVER ehci_octeon_driver #endif -#ifdef CONFIG_PLAT_SPEAR -#include "ehci-spear.c" -#define PLATFORM_DRIVER spear_ehci_hcd_driver -#endif - -#ifdef CONFIG_USB_EHCI_MSM -#include "ehci-msm.c" -#define PLATFORM_DRIVER ehci_msm_driver -#endif - #ifdef CONFIG_TILE_USB #include "ehci-tilegx.c" #define PLATFORM_DRIVER ehci_hcd_tilegx_driver @@ -1294,11 +1274,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER tegra_ehci_driver #endif -#ifdef CONFIG_USB_EHCI_S5P -#include "ehci-s5p.c" -#define PLATFORM_DRIVER s5p_ehci_driver -#endif - #ifdef CONFIG_SPARC_LEON #include "ehci-grlib.c" #define PLATFORM_DRIVER ehci_grlib_driver @@ -1319,6 +1294,11 @@ MODULE_LICENSE ("GPL"); !IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \ !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \ !IS_ENABLED(CONFIG_USB_EHCI_HCD_OMAP) && \ + !IS_ENABLED(CONFIG_USB_EHCI_HCD_ORION) && \ + !IS_ENABLED(CONFIG_USB_EHCI_HCD_SPEAR) && \ + !IS_ENABLED(CONFIG_USB_EHCI_S5P) && \ + !IS_ENABLED(CONFIG_USB_EHCI_HCD_AT91) && \ + !IS_ENABLED(CONFIG_USB_EHCI_MSM) && \ !defined(PLATFORM_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ !defined(OF_PLATFORM_DRIVER) && \ diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 7b04ca96b585..9ab4a4d9768a 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -840,7 +840,8 @@ static int ehci_hub_control ( * power switching; they're allowed to just limit the * current. khubd will turn the power back on. */ - if ((temp & PORT_OC) && HCS_PPC(ehci->hcs_params)) { + if (((temp & PORT_OC) || (ehci->need_oc_pp_cycle)) + && HCS_PPC(ehci->hcs_params)) { ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_POWER), status_reg); diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index 88a49c87e748..0f717dc688b7 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -22,16 +22,26 @@ * along with this program; if not, you can find it at http://www.fsf.org */ -#include <linux/platform_device.h> #include <linux/clk.h> #include <linux/err.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> #include <linux/pm_runtime.h> - #include <linux/usb/otg.h> #include <linux/usb/msm_hsusb_hw.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ehci.h" #define MSM_USB_BASE (hcd->regs) +#define DRIVER_DESC "Qualcomm On-Chip EHCI Host Controller" + +static const char hcd_name[] = "ehci-msm"; +static struct hc_driver __read_mostly msm_hc_driver; static struct usb_phy *phy; static int ehci_msm_reset(struct usb_hcd *hcd) @@ -56,52 +66,6 @@ static int ehci_msm_reset(struct usb_hcd *hcd) return 0; } -static struct hc_driver msm_hc_driver = { - .description = hcd_name, - .product_desc = "Qualcomm On-Chip EHCI Host Controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY, - - .reset = ehci_msm_reset, - .start = ehci_run, - - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - /* - * PM support - */ - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, -}; - static int ehci_msm_probe(struct platform_device *pdev) { struct usb_hcd *hcd; @@ -145,7 +109,7 @@ static int ehci_msm_probe(struct platform_device *pdev) * management. */ phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { dev_err(&pdev->dev, "unable to find transceiver\n"); ret = -ENODEV; goto put_hcd; @@ -165,6 +129,8 @@ static int ehci_msm_probe(struct platform_device *pdev) pm_runtime_no_callbacks(&pdev->dev); pm_runtime_enable(&pdev->dev); + /* FIXME: need to call usb_add_hcd() here? */ + return 0; put_hcd: @@ -183,6 +149,8 @@ static int ehci_msm_remove(struct platform_device *pdev) otg_set_host(phy->otg, NULL); + /* FIXME: need to call usb_remove_hcd() here? */ + usb_put_hcd(hcd); return 0; @@ -226,3 +194,28 @@ static struct platform_driver ehci_msm_driver = { .pm = &ehci_msm_dev_pm_ops, }, }; + +static const struct ehci_driver_overrides msm_overrides __initdata = { + .reset = ehci_msm_reset, +}; + +static int __init ehci_msm_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ehci_init_driver(&msm_hc_driver, &msm_overrides); + return platform_driver_register(&ehci_msm_driver); +} +module_init(ehci_msm_init); + +static void __exit ehci_msm_cleanup(void) +{ + platform_driver_unregister(&ehci_msm_driver); +} +module_exit(ehci_msm_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_ALIAS("platform:msm-ehci"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 5cd9f96ed92d..402062973f03 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -33,25 +33,17 @@ struct ehci_hcd_mv { struct mv_usb_platform_data *pdata; - /* clock source and total clock number */ - unsigned int clknum; - struct clk *clk[0]; + struct clk *clk; }; static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv) { - unsigned int i; - - for (i = 0; i < ehci_mv->clknum; i++) - clk_prepare_enable(ehci_mv->clk[i]); + clk_prepare_enable(ehci_mv->clk); } static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv) { - unsigned int i; - - for (i = 0; i < ehci_mv->clknum; i++) - clk_disable_unprepare(ehci_mv->clk[i]); + clk_disable_unprepare(ehci_mv->clk); } static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv) @@ -144,9 +136,8 @@ static int mv_ehci_probe(struct platform_device *pdev) struct ehci_hcd *ehci; struct ehci_hcd_mv *ehci_mv; struct resource *r; - int clk_i, retval = -ENODEV; + int retval = -ENODEV; u32 offset; - size_t size; if (!pdata) { dev_err(&pdev->dev, "missing platform_data\n"); @@ -160,8 +151,7 @@ static int mv_ehci_probe(struct platform_device *pdev) if (!hcd) return -ENOMEM; - size = sizeof(*ehci_mv) + sizeof(struct clk *) * pdata->clknum; - ehci_mv = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); + ehci_mv = devm_kzalloc(&pdev->dev, sizeof(*ehci_mv), GFP_KERNEL); if (ehci_mv == NULL) { dev_err(&pdev->dev, "cannot allocate ehci_hcd_mv\n"); retval = -ENOMEM; @@ -172,16 +162,11 @@ static int mv_ehci_probe(struct platform_device *pdev) ehci_mv->pdata = pdata; ehci_mv->hcd = hcd; - ehci_mv->clknum = pdata->clknum; - for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++) { - ehci_mv->clk[clk_i] = - devm_clk_get(&pdev->dev, pdata->clkname[clk_i]); - if (IS_ERR(ehci_mv->clk[clk_i])) { - dev_err(&pdev->dev, "error get clck \"%s\"\n", - pdata->clkname[clk_i]); - retval = PTR_ERR(ehci_mv->clk[clk_i]); - goto err_clear_drvdata; - } + ehci_mv->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(ehci_mv->clk)) { + dev_err(&pdev->dev, "error getting clock\n"); + retval = PTR_ERR(ehci_mv->clk); + goto err_clear_drvdata; } r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phyregs"); @@ -240,12 +225,16 @@ static int mv_ehci_probe(struct platform_device *pdev) ehci_mv->mode = pdata->mode; if (ehci_mv->mode == MV_USB_MODE_OTG) { -#ifdef CONFIG_USB_OTG_UTILS ehci_mv->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(ehci_mv->otg)) { - dev_err(&pdev->dev, - "unable to find transceiver\n"); - retval = -ENODEV; + if (IS_ERR(ehci_mv->otg)) { + retval = PTR_ERR(ehci_mv->otg); + + if (retval == -ENXIO) + dev_info(&pdev->dev, "MV_USB_MODE_OTG " + "must have CONFIG_USB_PHY enabled\n"); + else + dev_err(&pdev->dev, + "unable to find transceiver\n"); goto err_disable_clk; } @@ -258,11 +247,6 @@ static int mv_ehci_probe(struct platform_device *pdev) } /* otg will enable clock before use as host */ mv_ehci_disable(ehci_mv); -#else - dev_info(&pdev->dev, "MV_USB_MODE_OTG " - "must have CONFIG_USB_OTG_UTILS enabled\n"); - goto err_disable_clk; -#endif } else { if (pdata->set_vbus) pdata->set_vbus(1); diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 38c45fb3357e..54c579485150 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -17,6 +17,12 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_irq.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/io.h> +#include <linux/dma-mapping.h> + +#include "ehci.h" #define rdl(off) __raw_readl(hcd->regs + (off)) #define wrl(off, val) __raw_writel((val), hcd->regs + (off)) @@ -34,6 +40,12 @@ #define USB_PHY_IVREF_CTRL 0x440 #define USB_PHY_TST_GRP_CTRL 0x450 +#define DRIVER_DESC "EHCI orion driver" + +static const char hcd_name[] = "ehci-orion"; + +static struct hc_driver __read_mostly ehci_orion_hc_driver; + /* * Implement Orion USB controller specification guidelines */ @@ -104,51 +116,6 @@ static void orion_usb_phy_v1_setup(struct usb_hcd *hcd) wrl(USB_MODE, 0x13); } -static const struct hc_driver ehci_orion_hc_driver = { - .description = hcd_name, - .product_desc = "Marvell Orion EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* - * basic lifecycle operations - */ - .reset = ehci_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - static void ehci_orion_conf_mbus_windows(struct usb_hcd *hcd, const struct mbus_dram_target_info *dram) @@ -323,8 +290,6 @@ static int ehci_orion_drv_remove(struct platform_device *pdev) return 0; } -MODULE_ALIAS("platform:orion-ehci"); - static const struct of_device_id ehci_orion_dt_ids[] = { { .compatible = "marvell,orion-ehci", }, {}, @@ -341,3 +306,26 @@ static struct platform_driver ehci_orion_driver = { .of_match_table = of_match_ptr(ehci_orion_dt_ids), }, }; + +static int __init ehci_orion_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ehci_init_driver(&ehci_orion_hc_driver, NULL); + return platform_driver_register(&ehci_orion_driver); +} +module_init(ehci_orion_init); + +static void __exit ehci_orion_cleanup(void) +{ + platform_driver_unregister(&ehci_orion_driver); +} +module_exit(ehci_orion_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_ALIAS("platform:orion-ehci"); +MODULE_AUTHOR("Tzachi Perelstein"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 738490e6d429..d8cb0ca563b5 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -13,13 +13,24 @@ */ #include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> -#include <linux/platform_device.h> #include <linux/of_gpio.h> +#include <linux/platform_device.h> #include <linux/platform_data/usb-ehci-s5p.h> #include <linux/usb/phy.h> #include <linux/usb/samsung_usb_phy.h> #include <plat/usb-phy.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> + +#include "ehci.h" + +#define DRIVER_DESC "EHCI s5p driver" #define EHCI_INSNREG00(base) (base + 0x90) #define EHCI_INSNREG00_ENA_INCR16 (0x1 << 25) @@ -30,65 +41,17 @@ (EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 | \ EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN) +static const char hcd_name[] = "ehci-s5p"; +static struct hc_driver __read_mostly s5p_ehci_hc_driver; + struct s5p_ehci_hcd { - struct device *dev; - struct usb_hcd *hcd; struct clk *clk; struct usb_phy *phy; struct usb_otg *otg; struct s5p_ehci_platdata *pdata; }; -static const struct hc_driver s5p_ehci_hc_driver = { - .description = hcd_name, - .product_desc = "S5P EHCI Host Controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - .reset = ehci_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - .get_frame_number = ehci_get_frame, - - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - -static void s5p_ehci_phy_enable(struct s5p_ehci_hcd *s5p_ehci) -{ - struct platform_device *pdev = to_platform_device(s5p_ehci->dev); - - if (s5p_ehci->phy) - usb_phy_init(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_init) - s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST); -} - -static void s5p_ehci_phy_disable(struct s5p_ehci_hcd *s5p_ehci) -{ - struct platform_device *pdev = to_platform_device(s5p_ehci->dev); - - if (s5p_ehci->phy) - usb_phy_shutdown(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_exit) - s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); -} +#define to_s5p_ehci(hcd) (struct s5p_ehci_hcd *)(hcd_to_ehci(hcd)->priv) static void s5p_setup_vbus_gpio(struct platform_device *pdev) { @@ -134,13 +97,15 @@ static int s5p_ehci_probe(struct platform_device *pdev) s5p_setup_vbus_gpio(pdev); - s5p_ehci = devm_kzalloc(&pdev->dev, sizeof(struct s5p_ehci_hcd), - GFP_KERNEL); - if (!s5p_ehci) + hcd = usb_create_hcd(&s5p_ehci_hc_driver, + &pdev->dev, dev_name(&pdev->dev)); + if (!hcd) { + dev_err(&pdev->dev, "Unable to create HCD\n"); return -ENOMEM; - + } + s5p_ehci = to_s5p_ehci(hcd); phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { /* Fallback to pdata */ if (!pdata) { dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); @@ -153,16 +118,6 @@ static int s5p_ehci_probe(struct platform_device *pdev) s5p_ehci->otg = phy->otg; } - s5p_ehci->dev = &pdev->dev; - - hcd = usb_create_hcd(&s5p_ehci_hc_driver, &pdev->dev, - dev_name(&pdev->dev)); - if (!hcd) { - dev_err(&pdev->dev, "Unable to create HCD\n"); - return -ENOMEM; - } - - s5p_ehci->hcd = hcd; s5p_ehci->clk = devm_clk_get(&pdev->dev, "usbhost"); if (IS_ERR(s5p_ehci->clk)) { @@ -199,9 +154,12 @@ static int s5p_ehci_probe(struct platform_device *pdev) } if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self); + s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); - s5p_ehci_phy_enable(s5p_ehci); + if (s5p_ehci->phy) + usb_phy_init(s5p_ehci->phy); + else if (s5p_ehci->pdata->phy_init) + s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST); ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; @@ -220,7 +178,10 @@ static int s5p_ehci_probe(struct platform_device *pdev) return 0; fail_add_hcd: - s5p_ehci_phy_disable(s5p_ehci); + if (s5p_ehci->phy) + usb_phy_shutdown(s5p_ehci->phy); + else if (s5p_ehci->pdata->phy_exit) + s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); fail_io: clk_disable_unprepare(s5p_ehci->clk); fail_clk: @@ -230,15 +191,18 @@ fail_clk: static int s5p_ehci_remove(struct platform_device *pdev) { - struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev); - struct usb_hcd *hcd = s5p_ehci->hcd; + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd); usb_remove_hcd(hcd); if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self); + s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); - s5p_ehci_phy_disable(s5p_ehci); + if (s5p_ehci->phy) + usb_phy_shutdown(s5p_ehci->phy); + else if (s5p_ehci->pdata->phy_exit) + s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); clk_disable_unprepare(s5p_ehci->clk); @@ -249,8 +213,7 @@ static int s5p_ehci_remove(struct platform_device *pdev) static void s5p_ehci_shutdown(struct platform_device *pdev) { - struct s5p_ehci_hcd *s5p_ehci = platform_get_drvdata(pdev); - struct usb_hcd *hcd = s5p_ehci->hcd; + struct usb_hcd *hcd = platform_get_drvdata(pdev); if (hcd->driver->shutdown) hcd->driver->shutdown(hcd); @@ -259,17 +222,22 @@ static void s5p_ehci_shutdown(struct platform_device *pdev) #ifdef CONFIG_PM static int s5p_ehci_suspend(struct device *dev) { - struct s5p_ehci_hcd *s5p_ehci = dev_get_drvdata(dev); - struct usb_hcd *hcd = s5p_ehci->hcd; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd); + struct platform_device *pdev = to_platform_device(dev); + bool do_wakeup = device_may_wakeup(dev); int rc; rc = ehci_suspend(hcd, do_wakeup); if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self); + s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); - s5p_ehci_phy_disable(s5p_ehci); + if (s5p_ehci->phy) + usb_phy_shutdown(s5p_ehci->phy); + else if (s5p_ehci->pdata->phy_exit) + s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); clk_disable_unprepare(s5p_ehci->clk); @@ -278,15 +246,19 @@ static int s5p_ehci_suspend(struct device *dev) static int s5p_ehci_resume(struct device *dev) { - struct s5p_ehci_hcd *s5p_ehci = dev_get_drvdata(dev); - struct usb_hcd *hcd = s5p_ehci->hcd; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd); + struct platform_device *pdev = to_platform_device(dev); clk_prepare_enable(s5p_ehci->clk); if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &s5p_ehci->hcd->self); + s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); - s5p_ehci_phy_enable(s5p_ehci); + if (s5p_ehci->phy) + usb_phy_init(s5p_ehci->phy); + else if (s5p_ehci->pdata->phy_init) + s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST); /* DMA burst Enable */ writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs)); @@ -323,5 +295,29 @@ static struct platform_driver s5p_ehci_driver = { .of_match_table = of_match_ptr(exynos_ehci_match), } }; +static const struct ehci_driver_overrides s5p_overrides __initdata = { + .extra_priv_size = sizeof(struct s5p_ehci_hcd), +}; + +static int __init ehci_s5p_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ehci_init_driver(&s5p_ehci_hc_driver, &s5p_overrides); + return platform_driver_register(&s5p_ehci_driver); +} +module_init(ehci_s5p_init); + +static void __exit ehci_s5p_cleanup(void) +{ + platform_driver_unregister(&s5p_ehci_driver); +} +module_exit(ehci_s5p_cleanup); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_ALIAS("platform:s5p-ehci"); +MODULE_AUTHOR("Jingoo Han"); +MODULE_AUTHOR("Joonyoung Shim"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c index 210bb676f22f..61ecfb3d52f5 100644 --- a/drivers/usb/host/ehci-spear.c +++ b/drivers/usb/host/ehci-spear.c @@ -1,5 +1,5 @@ /* -* Driver for EHCI HCD on SPEAR SOC +* Driver for EHCI HCD on SPEAr SOC * * Copyright (C) 2010 ST Micro Electronics, * Deepak Sikri <deepak.sikri@st.com> @@ -12,71 +12,30 @@ */ #include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> #include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> -struct spear_ehci { - struct ehci_hcd ehci; - struct clk *clk; -}; - -#define to_spear_ehci(hcd) (struct spear_ehci *)hcd_to_ehci(hcd) +#include "ehci.h" -static void spear_start_ehci(struct spear_ehci *ehci) -{ - clk_prepare_enable(ehci->clk); -} +#define DRIVER_DESC "EHCI SPEAr driver" -static void spear_stop_ehci(struct spear_ehci *ehci) -{ - clk_disable_unprepare(ehci->clk); -} +static const char hcd_name[] = "SPEAr-ehci"; -static int ehci_spear_setup(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - - /* registers start at offset 0x0 */ - ehci->caps = hcd->regs; +struct spear_ehci { + struct clk *clk; +}; - return ehci_setup(hcd); -} +#define to_spear_ehci(hcd) (struct spear_ehci *)(hcd_to_ehci(hcd)->priv) -static const struct hc_driver ehci_spear_hc_driver = { - .description = hcd_name, - .product_desc = "SPEAr EHCI", - .hcd_priv_size = sizeof(struct spear_ehci), - - /* generic hardware linkage */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* basic lifecycle operations */ - .reset = ehci_spear_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* managing i/o requests and associated device resources */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* scheduling support */ - .get_frame_number = ehci_get_frame, - - /* root hub support */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; +static struct hc_driver __read_mostly ehci_spear_hc_driver; #ifdef CONFIG_PM_SLEEP static int ehci_spear_drv_suspend(struct device *dev) @@ -104,7 +63,7 @@ static u64 spear_ehci_dma_mask = DMA_BIT_MASK(32); static int spear_ehci_hcd_drv_probe(struct platform_device *pdev) { struct usb_hcd *hcd ; - struct spear_ehci *ehci; + struct spear_ehci *sehci; struct resource *res; struct clk *usbh_clk; const struct hc_driver *driver = &ehci_spear_hc_driver; @@ -161,10 +120,13 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev) goto err_put_hcd; } - ehci = (struct spear_ehci *)hcd_to_ehci(hcd); - ehci->clk = usbh_clk; + sehci = to_spear_ehci(hcd); + sehci->clk = usbh_clk; + + /* registers start at offset 0x0 */ + hcd_to_ehci(hcd)->caps = hcd->regs; - spear_start_ehci(ehci); + clk_prepare_enable(sehci->clk); retval = usb_add_hcd(hcd, irq, IRQF_SHARED); if (retval) goto err_stop_ehci; @@ -172,7 +134,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev) return retval; err_stop_ehci: - spear_stop_ehci(ehci); + clk_disable_unprepare(sehci->clk); err_put_hcd: usb_put_hcd(hcd); fail: @@ -184,7 +146,7 @@ fail: static int spear_ehci_hcd_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct spear_ehci *ehci_p = to_spear_ehci(hcd); + struct spear_ehci *sehci = to_spear_ehci(hcd); if (!hcd) return 0; @@ -192,8 +154,8 @@ static int spear_ehci_hcd_drv_remove(struct platform_device *pdev) BUG(); usb_remove_hcd(hcd); - if (ehci_p->clk) - spear_stop_ehci(ehci_p); + if (sehci->clk) + clk_disable_unprepare(sehci->clk); usb_put_hcd(hcd); return 0; @@ -216,4 +178,29 @@ static struct platform_driver spear_ehci_hcd_driver = { } }; +static const struct ehci_driver_overrides spear_overrides __initdata = { + .extra_priv_size = sizeof(struct spear_ehci), +}; + +static int __init ehci_spear_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ehci_init_driver(&ehci_spear_hc_driver, &spear_overrides); + return platform_driver_register(&spear_ehci_hcd_driver); +} +module_init(ehci_spear_init); + +static void __exit ehci_spear_cleanup(void) +{ + platform_driver_unregister(&spear_ehci_hcd_driver); +} +module_exit(ehci_spear_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_ALIAS("platform:spear-ehci"); +MODULE_AUTHOR("Deepak Sikri"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 568aecc7075b..ed201ae879cb 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -28,6 +28,7 @@ #include <linux/pm_runtime.h> #include <linux/usb/ehci_def.h> #include <linux/usb/tegra_usb_phy.h> +#include <linux/clk/tegra.h> #define TEGRA_USB_BASE 0xC5000000 #define TEGRA_USB2_BASE 0xC5004000 @@ -691,6 +692,10 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (err) goto fail_clk; + tegra_periph_reset_assert(tegra->clk); + udelay(1); + tegra_periph_reset_deassert(tegra->clk); + tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node, "nvidia,needs-double-reset"); @@ -755,7 +760,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) err = usb_phy_set_suspend(hcd->phy, 0); if (err) { dev_err(&pdev->dev, "Failed to power on the phy\n"); - goto fail; + goto fail_phy; } tegra->host_resumed = 1; @@ -765,17 +770,17 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (!irq) { dev_err(&pdev->dev, "Failed to get IRQ\n"); err = -ENODEV; - goto fail; + goto fail_phy; } -#ifdef CONFIG_USB_OTG_UTILS if (pdata->operating_mode == TEGRA_USB_OTG) { tegra->transceiver = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (!IS_ERR_OR_NULL(tegra->transceiver)) + if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, &hcd->self); + } else { + tegra->transceiver = ERR_PTR(-ENODEV); } -#endif err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { @@ -794,10 +799,9 @@ static int tegra_ehci_probe(struct platform_device *pdev) return err; fail: -#ifdef CONFIG_USB_OTG_UTILS - if (!IS_ERR_OR_NULL(tegra->transceiver)) + if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); -#endif +fail_phy: usb_phy_shutdown(hcd->phy); fail_io: clk_disable_unprepare(tegra->clk); @@ -815,10 +819,8 @@ static int tegra_ehci_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); -#ifdef CONFIG_USB_OTG_UTILS - if (!IS_ERR_OR_NULL(tegra->transceiver)) + if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); -#endif usb_phy_shutdown(hcd->phy); usb_remove_hcd(hcd); diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index e66699950997..7c978b23520d 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -199,6 +199,7 @@ struct ehci_hcd { /* one per controller */ unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */ unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ + unsigned need_oc_pp_cycle:1; /* MPC834X port power */ /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index e3b7e85120e4..4b469e050208 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -128,7 +128,7 @@ static int exynos_ohci_probe(struct platform_device *pdev) return -ENOMEM; phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { /* Fallback to pdata */ if (!pdata) { dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); |