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From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Mathias Nyman <mathias.nyman@intel.com>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	<linux-usb@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Hsin-Yi Wang <hsinyi@chromium.org>,
	Ikjoon Jang <ikjn@chromium.org>
Subject: [PATCH 2/3] usb: xhci-mtk: fix UAS issue by XHCI_BROKEN_STREAMS quirk
Date: Wed, 16 Dec 2020 19:51:24 +0800	[thread overview]
Message-ID: <20201216115125.5886-2-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <20201216115125.5886-1-chunfeng.yun@mediatek.com>

The 0.96 xHCI controller on some platforms does not support
bulk stream even HCCPARAMS says supporting, due to MaxPSASize
is set a non-zero default value by mistake, here use
XHCI_BROKEN_STREAMS quirk to fix it.

Fixes: 94a631d91ad3 ("usb: xhci-mtk: check hcc_params after adding primary hcd")
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/host/xhci-mtk.c | 7 ++++++-
 drivers/usb/host/xhci-mtk.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 8f321f39ab96..08dab974d847 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -395,6 +395,9 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)
 	xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
 	if (mtk->lpm_support)
 		xhci->quirks |= XHCI_LPM_SUPPORT;
+
+	if (mtk->broken_streams)
+		xhci->quirks |= XHCI_BROKEN_STREAMS;
 }
 
 /* called during probe() after chip reset completes */
@@ -460,6 +463,8 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 		return ret;
 
 	mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");
+	mtk->broken_streams =
+		of_property_read_bool(node, "mediatek,broken_streams_quirk");
 	/* optional property, ignore the error if it does not exist */
 	of_property_read_u32(node, "mediatek,u3p-dis-msk",
 			     &mtk->u3p_dis_msk);
@@ -546,7 +551,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 	if (ret)
 		goto put_usb3_hcd;
 
-	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+	if (!mtk->broken_streams && HCC_MAX_PSA(xhci->hcc_params) >= 4)
 		xhci->shared_hcd->can_do_streams = 1;
 
 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index a93cfe817904..86aa4978915e 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -147,6 +147,7 @@ struct xhci_hcd_mtk {
 	struct phy **phys;
 	int num_phys;
 	bool lpm_support;
+	bool broken_streams;
 	/* usb remote wakeup */
 	bool uwk_en;
 	struct regmap *uwk;
-- 
2.18.0

WARNING: multiple messages have this Message-ID (diff)
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Mathias Nyman <mathias.nyman@intel.com>
Cc: devicetree@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	Matthias Brugger <matthias.bgg@gmail.com>,
	linux-mediatek@lists.infradead.org,
	Hsin-Yi Wang <hsinyi@chromium.org>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Ikjoon Jang <ikjn@chromium.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] usb: xhci-mtk: fix UAS issue by XHCI_BROKEN_STREAMS quirk
Date: Wed, 16 Dec 2020 19:51:24 +0800	[thread overview]
Message-ID: <20201216115125.5886-2-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <20201216115125.5886-1-chunfeng.yun@mediatek.com>

The 0.96 xHCI controller on some platforms does not support
bulk stream even HCCPARAMS says supporting, due to MaxPSASize
is set a non-zero default value by mistake, here use
XHCI_BROKEN_STREAMS quirk to fix it.

Fixes: 94a631d91ad3 ("usb: xhci-mtk: check hcc_params after adding primary hcd")
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/host/xhci-mtk.c | 7 ++++++-
 drivers/usb/host/xhci-mtk.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 8f321f39ab96..08dab974d847 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -395,6 +395,9 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)
 	xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
 	if (mtk->lpm_support)
 		xhci->quirks |= XHCI_LPM_SUPPORT;
+
+	if (mtk->broken_streams)
+		xhci->quirks |= XHCI_BROKEN_STREAMS;
 }
 
 /* called during probe() after chip reset completes */
@@ -460,6 +463,8 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 		return ret;
 
 	mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");
+	mtk->broken_streams =
+		of_property_read_bool(node, "mediatek,broken_streams_quirk");
 	/* optional property, ignore the error if it does not exist */
 	of_property_read_u32(node, "mediatek,u3p-dis-msk",
 			     &mtk->u3p_dis_msk);
@@ -546,7 +551,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 	if (ret)
 		goto put_usb3_hcd;
 
-	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+	if (!mtk->broken_streams && HCC_MAX_PSA(xhci->hcc_params) >= 4)
 		xhci->shared_hcd->can_do_streams = 1;
 
 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index a93cfe817904..86aa4978915e 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -147,6 +147,7 @@ struct xhci_hcd_mtk {
 	struct phy **phys;
 	int num_phys;
 	bool lpm_support;
+	bool broken_streams;
 	/* usb remote wakeup */
 	bool uwk_en;
 	struct regmap *uwk;
-- 
2.18.0
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek

WARNING: multiple messages have this Message-ID (diff)
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Mathias Nyman <mathias.nyman@intel.com>
Cc: devicetree@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	Matthias Brugger <matthias.bgg@gmail.com>,
	linux-mediatek@lists.infradead.org,
	Hsin-Yi Wang <hsinyi@chromium.org>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Ikjoon Jang <ikjn@chromium.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] usb: xhci-mtk: fix UAS issue by XHCI_BROKEN_STREAMS quirk
Date: Wed, 16 Dec 2020 19:51:24 +0800	[thread overview]
Message-ID: <20201216115125.5886-2-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <20201216115125.5886-1-chunfeng.yun@mediatek.com>

The 0.96 xHCI controller on some platforms does not support
bulk stream even HCCPARAMS says supporting, due to MaxPSASize
is set a non-zero default value by mistake, here use
XHCI_BROKEN_STREAMS quirk to fix it.

Fixes: 94a631d91ad3 ("usb: xhci-mtk: check hcc_params after adding primary hcd")
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/host/xhci-mtk.c | 7 ++++++-
 drivers/usb/host/xhci-mtk.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 8f321f39ab96..08dab974d847 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -395,6 +395,9 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)
 	xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
 	if (mtk->lpm_support)
 		xhci->quirks |= XHCI_LPM_SUPPORT;
+
+	if (mtk->broken_streams)
+		xhci->quirks |= XHCI_BROKEN_STREAMS;
 }
 
 /* called during probe() after chip reset completes */
@@ -460,6 +463,8 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 		return ret;
 
 	mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");
+	mtk->broken_streams =
+		of_property_read_bool(node, "mediatek,broken_streams_quirk");
 	/* optional property, ignore the error if it does not exist */
 	of_property_read_u32(node, "mediatek,u3p-dis-msk",
 			     &mtk->u3p_dis_msk);
@@ -546,7 +551,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 	if (ret)
 		goto put_usb3_hcd;
 
-	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+	if (!mtk->broken_streams && HCC_MAX_PSA(xhci->hcc_params) >= 4)
 		xhci->shared_hcd->can_do_streams = 1;
 
 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index a93cfe817904..86aa4978915e 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -147,6 +147,7 @@ struct xhci_hcd_mtk {
 	struct phy **phys;
 	int num_phys;
 	bool lpm_support;
+	bool broken_streams;
 	/* usb remote wakeup */
 	bool uwk_en;
 	struct regmap *uwk;
-- 
2.18.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-12-16 11:52 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-16 11:51 [PATCH 1/3] dt-bindings: usb: mtk-xhci: add a new property for broken streams Chunfeng Yun
2020-12-16 11:51 ` Chunfeng Yun
2020-12-16 11:51 ` Chunfeng Yun
2020-12-16 11:51 ` Chunfeng Yun [this message]
2020-12-16 11:51   ` [PATCH 2/3] usb: xhci-mtk: fix UAS issue by XHCI_BROKEN_STREAMS quirk Chunfeng Yun
2020-12-16 11:51   ` Chunfeng Yun
2020-12-16 12:28   ` Nicolas Boichat
2020-12-16 12:28     ` Nicolas Boichat
2020-12-16 12:28     ` Nicolas Boichat
2020-12-17  2:19     ` Chunfeng Yun
2020-12-17  2:19       ` Chunfeng Yun
2020-12-17  2:19       ` Chunfeng Yun
2020-12-17  3:32       ` Nicolas Boichat
2020-12-17  3:32         ` Nicolas Boichat
2020-12-17  3:32         ` Nicolas Boichat
2020-12-17  6:23         ` Chunfeng Yun
2020-12-17  6:23           ` Chunfeng Yun
2020-12-17  6:23           ` Chunfeng Yun
2020-12-21 19:35           ` Rob Herring
2020-12-21 19:35             ` Rob Herring
2020-12-21 19:35             ` Rob Herring
2020-12-25  6:12             ` Chunfeng Yun
2020-12-25  6:12               ` Chunfeng Yun
2020-12-25  6:12               ` Chunfeng Yun
2020-12-17  3:43       ` Rosen Penev
2020-12-17  3:43         ` Rosen Penev
2020-12-17  3:43         ` Rosen Penev
2020-12-24  7:18         ` Chunfeng Yun
2020-12-24  7:18           ` Chunfeng Yun
2020-12-24  7:18           ` Chunfeng Yun
     [not found]           ` <7ad022d3-ff83-9126-ee74-6d1e4d381366@gmail.com>
2021-02-01  1:47             ` Chunfeng Yun
2021-02-01  1:47               ` Chunfeng Yun
2021-02-01  1:47               ` Chunfeng Yun
2020-12-16 11:51 ` [PATCH 3/3] arm64: dts: mt8173: add a broken streams quirk property for xHCI node Chunfeng Yun
2020-12-16 11:51   ` Chunfeng Yun
2020-12-16 11:51   ` Chunfeng Yun
2020-12-21 19:29 ` [PATCH 1/3] dt-bindings: usb: mtk-xhci: add a new property for broken streams Rob Herring
2020-12-21 19:29   ` Rob Herring
2020-12-21 19:29   ` Rob Herring

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