Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756855AbcJRB51 (ORCPT ); Mon, 17 Oct 2016 21:57:27 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:36029 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935521AbcJRB4r (ORCPT ); Mon, 17 Oct 2016 21:56:47 -0400 From: Stephen Boyd To: linux-usb@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Andy Gross , Bjorn Andersson , Neil Armstrong , Arnd Bergmann , Felipe Balbi , Peter Chen , Greg Kroah-Hartman Subject: [PATCH v5 07/23] usb: chipidea: Notify events when switching host mode Date: Mon, 17 Oct 2016 18:56:20 -0700 Message-Id: <20161018015636.11701-8-stephen.boyd@linaro.org> X-Mailer: git-send-email 2.10.0.297.gf6727b0 In-Reply-To: <20161018015636.11701-1-stephen.boyd@linaro.org> References: <20161018015636.11701-1-stephen.boyd@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1702 Lines: 49 The chipidea/udc.c file sends a CI_HDRC_CONTROLLER_RESET_EVENT to the wrapper drivers when it calls hw_device_reset(), but that function is not called from chipidea/host.c. And the udc.c file sends the CI_HDRC_CONTROLLER_STOPPED_EVENT but the host.c file doesn't do anything. The intent of the reset event is to allow the wrapper driver to do any wrapper specific things after the reset bit has been set in the usb command register. Therefore, add this event hook in the host role after we toggle that bit. Similarly, the intent of the stopped event is to allow the wrapper driver to do any wrapper specific things after the device is stopped. So when we stop the host role, send the stopped event. Acked-by: Peter Chen Cc: Greg Kroah-Hartman Signed-off-by: Stephen Boyd --- drivers/usb/chipidea/host.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 96ae69502c86..f036a9e39ced 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -90,6 +90,9 @@ static int ehci_ci_reset(struct usb_hcd *hcd) ehci->need_io_watchdog = 0; + if (ci->platdata->notify_event) + ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_RESET_EVENT); + ci_platform_configure(ci); return ret; @@ -187,6 +190,9 @@ static void host_stop(struct ci_hdrc *ci) struct usb_hcd *hcd = ci->hcd; if (hcd) { + if (ci->platdata->notify_event) + ci->platdata->notify_event(ci, + CI_HDRC_CONTROLLER_STOPPED_EVENT); usb_remove_hcd(hcd); usb_put_hcd(hcd); if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) && -- 2.10.0.297.gf6727b0