From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Mathias Nyman <mathias.nyman@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Felipe Balbi <felipe.balbi@linux.intel.com>,
Chunfeng Yun <chunfeng.yun@mediatek.com>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-usb@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>
Subject: [PATCH] usb: xhci: fix TDS for MTK xHCI1.1
Date: Wed, 6 Dec 2017 14:42:56 +0800 [thread overview]
Message-ID: <035626be9cb863b145b02369fe517d1c80335398.1512542108.git.chunfeng.yun@mediatek.com> (raw)
For MTK's xHCI 1.0 or latter, TD size is the number of max
packet sized packets remaining in the TD, not including
this TRB (following spec).
For MTK's xHCI 0.96 and older, TD size is the number of max
packet sized packets remaining in the TD, including this TRB
(not following spec).
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
drivers/usb/host/xhci-ring.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index c239c68..0619869 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -3108,7 +3108,7 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
{
u32 maxp, total_packet_count;
- /* MTK xHCI is mostly 0.97 but contains some features from 1.0 */
+ /* MTK xHCI 0.96 contains some features from 1.0 */
if (xhci->hci_version < 0x100 && !(xhci->quirks & XHCI_MTK_HOST))
return ((td_total_len - transferred) >> 10);
@@ -3117,8 +3117,8 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
trb_buff_len == td_total_len)
return 0;
- /* for MTK xHCI, TD size doesn't include this TRB */
- if (xhci->quirks & XHCI_MTK_HOST)
+ /* for MTK xHCI 0.96, TD size include this TRB, but not in 1.x */
+ if ((xhci->quirks & XHCI_MTK_HOST) && (xhci->hci_version < 0x100))
trb_buff_len = 0;
maxp = usb_endpoint_maxp(&urb->ep->desc);
--
1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Chunfeng Yun <chunfeng.yun-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: Mathias Nyman <mathias.nyman-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Felipe Balbi
<felipe.balbi-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Chunfeng Yun
<chunfeng.yun-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] usb: xhci: fix TDS for MTK xHCI1.1
Date: Wed, 6 Dec 2017 14:42:56 +0800 [thread overview]
Message-ID: <035626be9cb863b145b02369fe517d1c80335398.1512542108.git.chunfeng.yun@mediatek.com> (raw)
For MTK's xHCI 1.0 or latter, TD size is the number of max
packet sized packets remaining in the TD, not including
this TRB (following spec).
For MTK's xHCI 0.96 and older, TD size is the number of max
packet sized packets remaining in the TD, including this TRB
(not following spec).
Signed-off-by: Chunfeng Yun <chunfeng.yun-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
drivers/usb/host/xhci-ring.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index c239c68..0619869 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -3108,7 +3108,7 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
{
u32 maxp, total_packet_count;
- /* MTK xHCI is mostly 0.97 but contains some features from 1.0 */
+ /* MTK xHCI 0.96 contains some features from 1.0 */
if (xhci->hci_version < 0x100 && !(xhci->quirks & XHCI_MTK_HOST))
return ((td_total_len - transferred) >> 10);
@@ -3117,8 +3117,8 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
trb_buff_len == td_total_len)
return 0;
- /* for MTK xHCI, TD size doesn't include this TRB */
- if (xhci->quirks & XHCI_MTK_HOST)
+ /* for MTK xHCI 0.96, TD size include this TRB, but not in 1.x */
+ if ((xhci->quirks & XHCI_MTK_HOST) && (xhci->hci_version < 0x100))
trb_buff_len = 0;
maxp = usb_endpoint_maxp(&urb->ep->desc);
--
1.9.1
--
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WARNING: multiple messages have this Message-ID (diff)
From: chunfeng.yun@mediatek.com (Chunfeng Yun)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] usb: xhci: fix TDS for MTK xHCI1.1
Date: Wed, 6 Dec 2017 14:42:56 +0800 [thread overview]
Message-ID: <035626be9cb863b145b02369fe517d1c80335398.1512542108.git.chunfeng.yun@mediatek.com> (raw)
For MTK's xHCI 1.0 or latter, TD size is the number of max
packet sized packets remaining in the TD, not including
this TRB (following spec).
For MTK's xHCI 0.96 and older, TD size is the number of max
packet sized packets remaining in the TD, including this TRB
(not following spec).
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
drivers/usb/host/xhci-ring.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index c239c68..0619869 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -3108,7 +3108,7 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
{
u32 maxp, total_packet_count;
- /* MTK xHCI is mostly 0.97 but contains some features from 1.0 */
+ /* MTK xHCI 0.96 contains some features from 1.0 */
if (xhci->hci_version < 0x100 && !(xhci->quirks & XHCI_MTK_HOST))
return ((td_total_len - transferred) >> 10);
@@ -3117,8 +3117,8 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
trb_buff_len == td_total_len)
return 0;
- /* for MTK xHCI, TD size doesn't include this TRB */
- if (xhci->quirks & XHCI_MTK_HOST)
+ /* for MTK xHCI 0.96, TD size include this TRB, but not in 1.x */
+ if ((xhci->quirks & XHCI_MTK_HOST) && (xhci->hci_version < 0x100))
trb_buff_len = 0;
maxp = usb_endpoint_maxp(&urb->ep->desc);
--
1.9.1
next reply other threads:[~2017-12-06 6:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-06 6:42 Chunfeng Yun [this message]
2017-12-06 6:42 ` [PATCH] usb: xhci: fix TDS for MTK xHCI1.1 Chunfeng Yun
2017-12-06 6:42 ` Chunfeng Yun
2017-12-07 6:55 ` Mathias Nyman
2017-12-07 6:55 ` Mathias Nyman
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