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From: richard.zhao@freescale.com (Richard Zhao)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v9 REBASE 7/9] usb: chipidea: permit driver bindings pass phy pointer
Date: Sat, 7 Jul 2012 22:56:46 +0800	[thread overview]
Message-ID: <1341673008-29808-8-git-send-email-richard.zhao@freescale.com> (raw)
In-Reply-To: <1341673008-29808-1-git-send-email-richard.zhao@freescale.com>

Sometimes, the driver bindings may know what phy they use.
For example, when using device tree, the usb controller may have a
phandler pointing to usb phy.

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Subodh Nijsure <snijsure@grid-net.com>
---
 drivers/usb/chipidea/ci.h    |    2 ++
 drivers/usb/chipidea/core.c  |    4 ++++
 drivers/usb/chipidea/host.c  |    1 +
 drivers/usb/chipidea/udc.c   |   11 +++++++----
 include/linux/usb/chipidea.h |    3 +++
 5 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9655e35..d738603 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -160,6 +160,8 @@ struct ci13xxx {
 
 	struct ci13xxx_platform_data	*platdata;
 	int				vbus_active;
+	/* FIXME: some day, we'll not use global phy */
+	bool				global_phy;
 	struct usb_phy			*transceiver;
 	struct usb_hcd			*hcd;
 };
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 39603d7..1083585 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -419,6 +419,10 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev)
 
 	ci->dev = dev;
 	ci->platdata = dev->platform_data;
+	if (ci->platdata->phy)
+		ci->transceiver = ci->platdata->phy;
+	else
+		ci->global_phy = true;
 
 	ret = hw_device_init(ci, base);
 	if (ret < 0) {
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 4a4fdb8..ebff9f4 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -117,6 +117,7 @@ static int host_start(struct ci13xxx *ci)
 	hcd->has_tt = 1;
 
 	hcd->power_budget = ci->platdata->power_budget;
+	hcd->phy = ci->transceiver;
 
 	ehci = hcd_to_ehci(hcd);
 	ehci->caps = ci->hw_bank.cap;
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index ba8284e..c7a032a 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1685,7 +1685,8 @@ static int udc_start(struct ci13xxx *ci)
 
 	ci->gadget.ep0 = &ci->ep0in->ep;
 
-	ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
+	if (ci->global_phy)
+		ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
 
 	if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
 		if (ci->transceiver == NULL) {
@@ -1729,7 +1730,8 @@ static int udc_start(struct ci13xxx *ci)
 remove_trans:
 	if (!IS_ERR_OR_NULL(ci->transceiver)) {
 		otg_set_peripheral(ci->transceiver->otg, &ci->gadget);
-		usb_put_phy(ci->transceiver);
+		if (ci->global_phy)
+			usb_put_phy(ci->transceiver);
 	}
 
 	dev_err(dev, "error = %i\n", retval);
@@ -1738,7 +1740,7 @@ remove_dbg:
 unreg_device:
 	device_unregister(&ci->gadget.dev);
 put_transceiver:
-	if (!IS_ERR_OR_NULL(ci->transceiver))
+	if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy)
 		usb_put_phy(ci->transceiver);
 free_pools:
 	dma_pool_destroy(ci->td_pool);
@@ -1772,7 +1774,8 @@ static void udc_stop(struct ci13xxx *ci)
 
 	if (!IS_ERR_OR_NULL(ci->transceiver)) {
 		otg_set_peripheral(ci->transceiver->otg, NULL);
-		usb_put_phy(ci->transceiver);
+		if (ci->global_phy)
+			usb_put_phy(ci->transceiver);
 	}
 	dbg_remove_files(&ci->gadget.dev);
 	device_unregister(&ci->gadget.dev);
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index be078f0..544825d 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -5,12 +5,15 @@
 #ifndef __LINUX_USB_CHIPIDEA_H
 #define __LINUX_USB_CHIPIDEA_H
 
+#include <linux/usb/otg.h>
+
 struct ci13xxx;
 struct ci13xxx_platform_data {
 	const char	*name;
 	/* offset of the capability registers */
 	uintptr_t	 capoffset;
 	unsigned	 power_budget;
+	struct usb_phy	*phy;
 	unsigned long	 flags;
 #define CI13XXX_REGS_SHARED		BIT(0)
 #define CI13XXX_REQUIRE_TRANSCEIVER	BIT(1)
-- 
1.7.9.5

  parent reply	other threads:[~2012-07-07 14:56 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-07 14:56 [PATCH v9 REBASE 0/9] add imx usb driver based on Greg next tree Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 1/9] USB: Chipidea: rename struct ci13xxx variables from udc to ci Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 2/9] USB: Chipidea: add unified ci13xxx_{add, remove}_device for platform drivers Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 3/9] USB: Chipidea: add ci13xxx device id management Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 4/9] usb: chipidea: select USB_EHCI_ROOT_HUB_TT in USB_CHIPIDEA_HOST of Kconfig Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 5/9] usb: otg: add notify_connect/notify_disconnect callback Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 6/9] USB: notify phy when root hub port connect change Richard Zhao
2012-07-09 16:57   ` Greg KH
2012-07-10  1:44     ` Richard Zhao
2012-07-10 14:24       ` Alan Stern
2012-07-10 14:53         ` Richard Zhao
2012-07-10  3:14   ` Richard Zhao
2012-07-10  3:22     ` Marek Vasut
2012-07-10 11:20       ` Richard Zhao
2012-07-10 11:38         ` Marek Vasut
2012-07-10 15:07     ` Alan Stern
2012-07-11  2:53       ` Richard Zhao
2012-07-07 14:56 ` Richard Zhao [this message]
2012-07-07 14:56 ` [PATCH v9 REBASE 8/9] usb: otg: add basic mxs phy driver support Richard Zhao
2012-07-07 14:56 ` [PATCH v9 REBASE 9/9] usb: chipidea: add imx platform driver Richard Zhao
2012-07-09 17:02 ` [PATCH v9 REBASE 0/9] add imx usb driver based on Greg next tree Greg KH
2012-07-10  1:52   ` Marek Vasut

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