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From: stephen.boyd@linaro.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 07/22] usb: chipidea: Notify events when switching host mode
Date: Wed, 31 Aug 2016 17:40:21 -0700	[thread overview]
Message-ID: <20160901004036.23936-8-stephen.boyd@linaro.org> (raw)
In-Reply-To: <20160901004036.23936-1-stephen.boyd@linaro.org>

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 <peter.chen@nxp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
---
 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 053bac9d983c..a1d8551ca79d 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -87,6 +87,9 @@ static int ehci_ci_reset(struct usb_hcd *hcd)
 	if (ret)
 		return ret;
 
+	if (ci->platdata->notify_event)
+		ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_RESET_EVENT);
+
 	ci_platform_configure(ci);
 
 	return ret;
@@ -184,6 +187,9 @@ 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) &&
-- 
2.9.0.rc2.8.ga28705d

  parent reply	other threads:[~2016-09-01  0:40 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-01  0:40 [PATCH v3 00/22] Support qcom's HSIC USB and rewrite USB2 HS phy support Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 01/22] of: device: Support loading a module with OF based modalias Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 02/22] of: device: Export of_device_{get_modalias, uvent_modalias} to modules Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 03/22] usb: ulpi: Support device discovery via device properties Stephen Boyd
2016-09-02 14:09   ` Heikki Krogerus
2016-09-03  1:14     ` Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 04/22] usb: chipidea: Only read/write OTGSC from one place Stephen Boyd
2016-09-02  2:43   ` Peter Chen
2016-09-01  0:40 ` [PATCH v3 05/22] usb: chipidea: Handle extcon events properly Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 06/22] usb: chipidea: Add platform flag for wrapper phy management Stephen Boyd
2016-09-01  0:40 ` Stephen Boyd [this message]
2016-09-01  0:40 ` [PATCH v3 08/22] usb: chipidea: Remove locking in ci_udc_start() Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 09/22] usb: chipidea: Add support for ULPI PHY bus Stephen Boyd
2016-09-02  2:47   ` Peter Chen
2016-09-01  0:40 ` [PATCH v3 10/22] usb: chipidea: Consolidate extcon notifiers Stephen Boyd
2016-09-02  3:17   ` Peter Chen
2016-09-03  1:03     ` Stephen Boyd
2016-09-05  2:39       ` Peter Chen
2016-09-06 17:48         ` Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 11/22] usb: chipidea: msm: Mark device as runtime pm active Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 12/22] usb: chipidea: msm: Rely on core to override AHBBURST Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 13/22] usb: chipidea: msm: Use hw_write_id_reg() instead of writel Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 14/22] usb: chipidea: msm: Add proper clk and reset support Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 15/22] usb: chipidea: msm: Mux over secondary phy at the right time Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 16/22] usb: chipidea: msm: Restore wrapper settings after reset Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 17/22] usb: chipidea: msm: Make platform data driver local instead of global Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 18/22] usb: chipidea: msm: Add reset controller for PHY POR bit Stephen Boyd
2016-09-02  3:33   ` Peter Chen
2016-09-01  0:40 ` [PATCH v3 19/22] usb: chipidea: msm: Handle phy power states Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 20/22] usb: chipidea: msm: Be silent on probe defer errors Stephen Boyd
2016-09-01  0:40 ` [PATCH v3 21/22] phy: Add support for Qualcomm's USB HSIC phy Stephen Boyd
2016-09-01  6:17   ` Vivek Gautam
2016-09-01 22:00     ` Stephen Boyd
2016-09-02 11:28       ` vivek.gautam at codeaurora.org
2016-09-01  0:40 ` [PATCH v3 22/22] phy: Add support for Qualcomm's USB HS phy Stephen Boyd

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