From b4629a7bdfd8fcafc90ded7e6a1f88099105842d Mon Sep 17 00:00:00 2001 From: Alban Bedel Date: Tue, 4 Aug 2015 10:59:17 +0200 Subject: [PATCH] usb: ehci-platform: Fix using multiple controllers from OF When using OF defined controllers the platform data struct is shared between all devices, so it can't be used for device specific settings. However it is currently used for the OF properties needs-reset-on-resume and has-transaction-translator. To fix this issue move setting hcd->has_tt to the probe and move pdata->reset_on_resume to the private data. Signed-off-by: Alban Bedel Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-platform.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 2593def13cea..5c3c08598682 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -45,6 +45,7 @@ struct ehci_platform_priv { struct reset_control *rst; struct phy **phys; int num_phys; + bool reset_on_resume; }; static const char hcd_name[] = "ehci-platform"; @@ -56,7 +57,6 @@ static int ehci_platform_reset(struct usb_hcd *hcd) struct ehci_hcd *ehci = hcd_to_ehci(hcd); int retval; - hcd->has_tt = pdata->has_tt; ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug; if (pdata->pre_setup) { @@ -193,11 +193,11 @@ static int ehci_platform_probe(struct platform_device *dev) if (of_property_read_bool(dev->dev.of_node, "needs-reset-on-resume")) - pdata->reset_on_resume = 1; + priv->reset_on_resume = true; if (of_property_read_bool(dev->dev.of_node, "has-transaction-translator")) - pdata->has_tt = 1; + hcd->has_tt = 1; priv->num_phys = of_count_phandle_with_args(dev->dev.of_node, "phys", "#phy-cells"); @@ -247,6 +247,10 @@ static int ehci_platform_probe(struct platform_device *dev) ehci->big_endian_desc = 1; if (pdata->big_endian_mmio) ehci->big_endian_mmio = 1; + if (pdata->has_tt) + hcd->has_tt = 1; + if (pdata->reset_on_resume) + priv->reset_on_resume = true; #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO if (ehci->big_endian_mmio) { @@ -359,6 +363,7 @@ static int ehci_platform_resume(struct device *dev) struct usb_ehci_pdata *pdata = dev_get_platdata(dev); struct platform_device *pdev = container_of(dev, struct platform_device, dev); + struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd); if (pdata->power_on) { int err = pdata->power_on(pdev); @@ -366,7 +371,7 @@ static int ehci_platform_resume(struct device *dev) return err; } - ehci_resume(hcd, pdata->reset_on_resume); + ehci_resume(hcd, priv->reset_on_resume); return 0; } #endif /* CONFIG_PM_SLEEP */ -- 2.45.2