[next, PATCH 1/6] usb: mtu3: re-enable controller to accept LPM request after LPM resume

All of lore.kernel.org
 help / color / mirror / Atom feed

From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	<linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>
Subject: [next, PATCH 1/6] usb: mtu3: re-enable controller to accept LPM request after LPM resume
Date: Wed, 23 May 2018 16:53:15 +0800	[thread overview]
Message-ID: <1291b13a362eaa0cccd30cb8dd4f56d33e1d172d.1527065109.git.chunfeng.yun@mediatek.com> (raw)

After the controller receives a LPM request, it will reject the LPM
request, and need software to re-enable it after LPM resume if the
controller doesn't remote wakeup from L1 automatically

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/mtu3/mtu3_core.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index b1b99a8..65ff53a 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -176,7 +176,7 @@ static void mtu3_intr_enable(struct mtu3 *mtu)
 	mtu3_writel(mbase, U3D_LV1IESR, value);
 
 	/* Enable U2 common USB interrupts */
-	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR;
+	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR | LPM_RESUME_INTR;
 	mtu3_writel(mbase, U3D_COMMON_USB_INTR_ENABLE, value);
 
 	if (mtu->is_u3_ip) {
@@ -692,6 +692,12 @@ static irqreturn_t mtu3_u2_common_isr(struct mtu3 *mtu)
 	if (u2comm & RESET_INTR)
 		mtu3_gadget_reset(mtu);
 
+	if (u2comm & LPM_RESUME_INTR) {
+		if (!(mtu3_readl(mbase, U3D_POWER_MANAGEMENT) & LPM_HRWE))
+			mtu3_setbits(mbase, U3D_USB20_MISC_CONTROL,
+				     LPM_U3_ACK_EN);
+	}
+
 	return IRQ_HANDLED;
 }
 
-- 
1.9.1

WARNING: multiple messages have this Message-ID (diff)

From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: [next, PATCH 1/6] usb: mtu3: re-enable controller to accept LPM request after LPM resume
Date: Wed, 23 May 2018 16:53:15 +0800	[thread overview]
Message-ID: <1291b13a362eaa0cccd30cb8dd4f56d33e1d172d.1527065109.git.chunfeng.yun@mediatek.com> (raw)

After the controller receives a LPM request, it will reject the LPM
request, and need software to re-enable it after LPM resume if the
controller doesn't remote wakeup from L1 automatically

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/mtu3/mtu3_core.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index b1b99a8..65ff53a 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -176,7 +176,7 @@ static void mtu3_intr_enable(struct mtu3 *mtu)
 	mtu3_writel(mbase, U3D_LV1IESR, value);
 
 	/* Enable U2 common USB interrupts */
-	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR;
+	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR | LPM_RESUME_INTR;
 	mtu3_writel(mbase, U3D_COMMON_USB_INTR_ENABLE, value);
 
 	if (mtu->is_u3_ip) {
@@ -692,6 +692,12 @@ static irqreturn_t mtu3_u2_common_isr(struct mtu3 *mtu)
 	if (u2comm & RESET_INTR)
 		mtu3_gadget_reset(mtu);
 
+	if (u2comm & LPM_RESUME_INTR) {
+		if (!(mtu3_readl(mbase, U3D_POWER_MANAGEMENT) & LPM_HRWE))
+			mtu3_setbits(mbase, U3D_USB20_MISC_CONTROL,
+				     LPM_U3_ACK_EN);
+	}
+
 	return IRQ_HANDLED;
 }
 
-- 
1.9.1

WARNING: multiple messages have this Message-ID (diff)

From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: [next,1/6] usb: mtu3: re-enable controller to accept LPM request after LPM resume
Date: Wed, 23 May 2018 16:53:15 +0800	[thread overview]
Message-ID: <1291b13a362eaa0cccd30cb8dd4f56d33e1d172d.1527065109.git.chunfeng.yun@mediatek.com> (raw)

After the controller receives a LPM request, it will reject the LPM
request, and need software to re-enable it after LPM resume if the
controller doesn't remote wakeup from L1 automatically

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/mtu3/mtu3_core.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index b1b99a8..65ff53a 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -176,7 +176,7 @@ static void mtu3_intr_enable(struct mtu3 *mtu)
 	mtu3_writel(mbase, U3D_LV1IESR, value);
 
 	/* Enable U2 common USB interrupts */
-	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR;
+	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR | LPM_RESUME_INTR;
 	mtu3_writel(mbase, U3D_COMMON_USB_INTR_ENABLE, value);
 
 	if (mtu->is_u3_ip) {
@@ -692,6 +692,12 @@ static irqreturn_t mtu3_u2_common_isr(struct mtu3 *mtu)
 	if (u2comm & RESET_INTR)
 		mtu3_gadget_reset(mtu);
 
+	if (u2comm & LPM_RESUME_INTR) {
+		if (!(mtu3_readl(mbase, U3D_POWER_MANAGEMENT) & LPM_HRWE))
+			mtu3_setbits(mbase, U3D_USB20_MISC_CONTROL,
+				     LPM_U3_ACK_EN);
+	}
+
 	return IRQ_HANDLED;
 }

WARNING: multiple messages have this Message-ID (diff)

From: chunfeng.yun@mediatek.com (Chunfeng Yun)
To: linux-arm-kernel@lists.infradead.org
Subject: [next, PATCH 1/6] usb: mtu3: re-enable controller to accept LPM request after LPM resume
Date: Wed, 23 May 2018 16:53:15 +0800	[thread overview]
Message-ID: <1291b13a362eaa0cccd30cb8dd4f56d33e1d172d.1527065109.git.chunfeng.yun@mediatek.com> (raw)

After the controller receives a LPM request, it will reject the LPM
request, and need software to re-enable it after LPM resume if the
controller doesn't remote wakeup from L1 automatically

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/mtu3/mtu3_core.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index b1b99a8..65ff53a 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -176,7 +176,7 @@ static void mtu3_intr_enable(struct mtu3 *mtu)
 	mtu3_writel(mbase, U3D_LV1IESR, value);
 
 	/* Enable U2 common USB interrupts */
-	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR;
+	value = SUSPEND_INTR | RESUME_INTR | RESET_INTR | LPM_RESUME_INTR;
 	mtu3_writel(mbase, U3D_COMMON_USB_INTR_ENABLE, value);
 
 	if (mtu->is_u3_ip) {
@@ -692,6 +692,12 @@ static irqreturn_t mtu3_u2_common_isr(struct mtu3 *mtu)
 	if (u2comm & RESET_INTR)
 		mtu3_gadget_reset(mtu);
 
+	if (u2comm & LPM_RESUME_INTR) {
+		if (!(mtu3_readl(mbase, U3D_POWER_MANAGEMENT) & LPM_HRWE))
+			mtu3_setbits(mbase, U3D_USB20_MISC_CONTROL,
+				     LPM_U3_ACK_EN);
+	}
+
 	return IRQ_HANDLED;
 }
 
-- 
1.9.1

next             reply	other threads:[~2018-05-23  8:53 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-23  8:53 Chunfeng Yun [this message]
2018-05-23  8:53 ` [next, PATCH 1/6] usb: mtu3: re-enable controller to accept LPM request after LPM resume Chunfeng Yun
2018-05-23  8:53 ` [next,1/6] " Chunfeng Yun
2018-05-23  8:53 ` [next, PATCH 1/6] " Chunfeng Yun
2018-05-23  8:53 ` [next, PATCH 2/6] usb: mtu3: fix uncontinuous SeqN issue after disable EP Chunfeng Yun
2018-05-23  8:53   ` Chunfeng Yun
2018-05-23  8:53   ` [next,2/6] " Chunfeng Yun
2018-05-23  8:53   ` [next, PATCH 2/6] " Chunfeng Yun
2018-05-23  8:53 ` [next, PATCH 3/6] usb: mtu3: clear test_mode flag when reset Chunfeng Yun
2018-05-23  8:53   ` Chunfeng Yun
2018-05-23  8:53   ` [next,3/6] " Chunfeng Yun
2018-05-23  8:53   ` [next, PATCH 3/6] " Chunfeng Yun
2018-05-23  8:53 ` [next, PATCH 4/6] usb: mtu3: avoid sleep in atomic context when enter test mode Chunfeng Yun
2018-05-23  8:53   ` Chunfeng Yun
2018-05-23  8:53   ` [next,4/6] " Chunfeng Yun
2018-05-23  8:53   ` [next, PATCH 4/6] " Chunfeng Yun
2018-05-23  8:53 ` [next, PATCH 5/6] usb: mtu3: reset gadget when VBUS_FALL interrupt arises Chunfeng Yun
2018-05-23  8:53   ` Chunfeng Yun
2018-05-23  8:53   ` [next,5/6] " Chunfeng Yun
2018-05-23  8:53   ` [next, PATCH 5/6] " Chunfeng Yun
2018-05-23  8:53 ` [next, PATCH 6/6] usb: mtu3: fix warning of sleep in atomic context in notifier callback Chunfeng Yun
2018-05-23  8:53   ` Chunfeng Yun
2018-05-23  8:53   ` [next,6/6] " Chunfeng Yun
2018-05-23  8:53   ` [next, PATCH 6/6] " Chunfeng Yun

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:b1b99a8 dfblob:b1b99a8 dfblob:b1b99a8 dfblob:b1b99a8
dfblob:65ff53a dfblob:65ff53a dfblob:65ff53a dfblob:65ff53a
	(help)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1291b13a362eaa0cccd30cb8dd4f56d33e1d172d.1527065109.git.chunfeng.yun@mediatek.com \
    --to=chunfeng.yun@mediatek.com \
    --cc=devicetree@vger.kernel.org \
    --cc=felipe.balbi@linux.intel.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=matthias.bgg@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Be sure your reply has a Subject: header at the top and a blank line before the message body.

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.