Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752636AbcKHTBv (ORCPT ); Tue, 8 Nov 2016 14:01:51 -0500 Received: from mail-wm0-f47.google.com ([74.125.82.47]:36982 "EHLO mail-wm0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753896AbcKHS57 (ORCPT ); Tue, 8 Nov 2016 13:57:59 -0500 From: Axel Haslam To: gregkh@linuxfoundation.org, stern@rowland.harvard.edu, nsekhar@ti.com, khilman@kernel.org, david@lechnology.com Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Axel Haslam Subject: [PATCH 1/2] USB: ohci: da8xx: Remove ohci platform callbacks Date: Tue, 8 Nov 2016 19:57:51 +0100 Message-Id: <20161108185752.17621-2-ahaslam@baylibre.com> X-Mailer: git-send-email 2.10.1.502.g6598894 In-Reply-To: <20161108185752.17621-1-ahaslam@baylibre.com> References: <20161108185752.17621-1-ahaslam@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6436 Lines: 216 Now that all ohci users are are using a regulator, we can remove the platform callbacks and data. potpgt is no longer necessary as a power on delay time can be specified for the regulator itself. Signed-off-by: Axel Haslam --- drivers/usb/host/ohci-da8xx.c | 84 ++----------------------------- include/linux/platform_data/usb-davinci.h | 20 -------- 2 files changed, 5 insertions(+), 99 deletions(-) diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c index 0a4b885..3dcbf1f 100644 --- a/drivers/usb/host/ohci-da8xx.c +++ b/drivers/usb/host/ohci-da8xx.c @@ -89,12 +89,8 @@ static int ohci_da8xx_set_power(struct usb_hcd *hcd, int on) { struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd); struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); int ret; - if (hub && hub->set_power) - return hub->set_power(1, on); - if (!da8xx_ohci->vbus_reg) return 0; @@ -121,11 +117,6 @@ static int ohci_da8xx_set_power(struct usb_hcd *hcd, int on) static int ohci_da8xx_get_power(struct usb_hcd *hcd) { struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd); - struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); - - if (hub && hub->get_power) - return hub->get_power(1); if (da8xx_ohci->vbus_reg) return regulator_is_enabled(da8xx_ohci->vbus_reg); @@ -137,13 +128,9 @@ static int ohci_da8xx_get_oci(struct usb_hcd *hcd) { struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd); struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); unsigned int flags; int ret; - if (hub && hub->get_oci) - return hub->get_oci(1); - if (!da8xx_ohci->vbus_reg) return 0; @@ -159,29 +146,9 @@ static int ohci_da8xx_get_oci(struct usb_hcd *hcd) return 0; } -static int ohci_da8xx_has_set_power(struct usb_hcd *hcd) +static int ohci_da8xx_has_regulator(struct usb_hcd *hcd) { struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd); - struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); - - if (hub && hub->set_power) - return 1; - - if (da8xx_ohci->vbus_reg) - return 1; - - return 0; -} - -static int ohci_da8xx_has_oci(struct usb_hcd *hcd) -{ - struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd); - struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); - - if (hub && hub->get_oci) - return 1; if (da8xx_ohci->vbus_reg) return 1; @@ -189,30 +156,9 @@ static int ohci_da8xx_has_oci(struct usb_hcd *hcd) return 0; } -static int ohci_da8xx_has_potpgt(struct usb_hcd *hcd) -{ - struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); - - if (hub && hub->potpgt) - return 1; - - return 0; -} - /* * Handle the port over-current indicator change. */ -static void ohci_da8xx_ocic_handler(struct da8xx_ohci_root_hub *hub, - unsigned port) -{ - ocic_mask |= 1 << port; - - /* Once over-current is detected, the port needs to be powered down */ - if (hub->get_oci(port) > 0) - hub->set_power(port, 0); -} - static int ohci_da8xx_regulator_event(struct notifier_block *nb, unsigned long event, void *data) { @@ -233,12 +179,9 @@ static int ohci_da8xx_register_notify(struct usb_hcd *hcd) { struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd); struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); int ret = 0; - if (hub && hub->ocic_notify) - ret = hub->ocic_notify(ohci_da8xx_ocic_handler); - else if (da8xx_ohci->vbus_reg) { + if (da8xx_ohci->vbus_reg) { da8xx_ohci->nb.notifier_call = ohci_da8xx_regulator_event; ret = devm_regulator_register_notifier(da8xx_ohci->vbus_reg, &da8xx_ohci->nb); @@ -250,19 +193,9 @@ static int ohci_da8xx_register_notify(struct usb_hcd *hcd) return ret; } -static void ohci_da8xx_unregister_notify(struct usb_hcd *hcd) -{ - struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); - - if (hub && hub->ocic_notify) - hub->ocic_notify(NULL); -} - static int ohci_da8xx_reset(struct usb_hcd *hcd) { struct device *dev = hcd->self.controller; - struct da8xx_ohci_root_hub *hub = dev_get_platdata(dev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); int result; u32 rh_a; @@ -291,20 +224,14 @@ static int ohci_da8xx_reset(struct usb_hcd *hcd) * register's default value, so that ohci_hub_control() could return * the correct hub descriptor... */ - rh_a = ohci_readl(ohci, &ohci->regs->roothub.a); - if (ohci_da8xx_has_set_power(hcd)) { + if (ohci_da8xx_has_regulator(hcd)) { + rh_a = ohci_readl(ohci, &ohci->regs->roothub.a); rh_a &= ~RH_A_NPS; rh_a |= RH_A_PSM; - } - if (ohci_da8xx_has_oci(hcd)) { rh_a &= ~RH_A_NOCP; rh_a |= RH_A_OCPM; + ohci_writel(ohci, rh_a, &ohci->regs->roothub.a); } - if (ohci_da8xx_has_potpgt(hcd)) { - rh_a &= ~RH_A_POTPGT; - rh_a |= hub->potpgt << 24; - } - ohci_writel(ohci, rh_a, &ohci->regs->roothub.a); return result; } @@ -479,7 +406,6 @@ static int ohci_da8xx_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - ohci_da8xx_unregister_notify(hcd); usb_remove_hcd(hcd); usb_put_hcd(hcd); diff --git a/include/linux/platform_data/usb-davinci.h b/include/linux/platform_data/usb-davinci.h index 0926e99..58f4be0 100644 --- a/include/linux/platform_data/usb-davinci.h +++ b/include/linux/platform_data/usb-davinci.h @@ -11,26 +11,6 @@ #ifndef __ASM_ARCH_USB_H #define __ASM_ARCH_USB_H -struct da8xx_ohci_root_hub; - -typedef void (*da8xx_ocic_handler_t)(struct da8xx_ohci_root_hub *hub, - unsigned port); - -/* Passed as the platform data to the OHCI driver */ -struct da8xx_ohci_root_hub { - /* Switch the port power on/off */ - int (*set_power)(unsigned port, int on); - /* Read the port power status */ - int (*get_power)(unsigned port); - /* Read the port over-current indicator */ - int (*get_oci)(unsigned port); - /* Over-current indicator change notification (pass NULL to disable) */ - int (*ocic_notify)(da8xx_ocic_handler_t handler); - - /* Time from power on to power good (in 2 ms units) */ - u8 potpgt; -}; - void davinci_setup_usb(unsigned mA, unsigned potpgt_ms); #endif /* ifndef __ASM_ARCH_USB_H */ -- 2.10.1