From: Álvaro Fernández Rojas Date: Wed, 24 Mar 2021 13:02:56 +0000 (+0100) Subject: kernel: backport ehci overcurrent patches X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=bd47189602f8dce21297669424b0033c7d03bce7;p=openwrt%2Fstaging%2Fblocktrron.git kernel: backport ehci overcurrent patches These patches have been accepted for v5.13. Signed-off-by: Álvaro Fernández Rojas --- diff --git a/target/linux/bcm63xx/patches-5.10/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch b/target/linux/bcm63xx/patches-5.10/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch index 6d91129932..5822166485 100644 --- a/target/linux/bcm63xx/patches-5.10/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch +++ b/target/linux/bcm63xx/patches-5.10/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch @@ -4,7 +4,7 @@ Date: Mon, 28 Jan 2013 20:06:30 +0100 Subject: [PATCH 12/12] MIPS: BCM63XX: EHCI controller does not support overcurrent -This patch sets the ignore_oc flag for the BCM63XX EHCI controller as it +This patch sets the spurious_oc flag for the BCM63XX EHCI controller as it does not support proper overcurrent reporting. Signed-off-by: Florian Fainelli @@ -18,7 +18,7 @@ Signed-off-by: Florian Fainelli static struct usb_ehci_pdata bcm63xx_ehci_pdata = { .big_endian_desc = 1, .big_endian_mmio = 1, -+ .ignore_oc = 1, ++ .spurious_oc = 1, .power_on = bcm63xx_ehci_power_on, .power_off = bcm63xx_ehci_power_off, .power_suspend = bcm63xx_ehci_power_off, diff --git a/target/linux/bcm63xx/patches-5.4/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch b/target/linux/bcm63xx/patches-5.4/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch index 6d91129932..5822166485 100644 --- a/target/linux/bcm63xx/patches-5.4/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch +++ b/target/linux/bcm63xx/patches-5.4/110-MIPS-BCM63XX-EHCI-controller-does-not-support-overcu.patch @@ -4,7 +4,7 @@ Date: Mon, 28 Jan 2013 20:06:30 +0100 Subject: [PATCH 12/12] MIPS: BCM63XX: EHCI controller does not support overcurrent -This patch sets the ignore_oc flag for the BCM63XX EHCI controller as it +This patch sets the spurious_oc flag for the BCM63XX EHCI controller as it does not support proper overcurrent reporting. Signed-off-by: Florian Fainelli @@ -18,7 +18,7 @@ Signed-off-by: Florian Fainelli static struct usb_ehci_pdata bcm63xx_ehci_pdata = { .big_endian_desc = 1, .big_endian_mmio = 1, -+ .ignore_oc = 1, ++ .spurious_oc = 1, .power_on = bcm63xx_ehci_power_on, .power_off = bcm63xx_ehci_power_off, .power_suspend = bcm63xx_ehci_power_off, diff --git a/target/linux/bmips/patches-5.10/300-usb-host-generic-ehci-ignore-oc-device-tree.patch b/target/linux/bmips/patches-5.10/300-usb-host-generic-ehci-ignore-oc-device-tree.patch deleted file mode 100644 index e65dbd9027..0000000000 --- a/target/linux/bmips/patches-5.10/300-usb-host-generic-ehci-ignore-oc-device-tree.patch +++ /dev/null @@ -1,12 +0,0 @@ ---- a/drivers/usb/host/ehci-platform.c -+++ b/drivers/usb/host/ehci-platform.c -@@ -286,6 +286,9 @@ static int ehci_platform_probe(struct pl - if (of_property_read_bool(dev->dev.of_node, "big-endian")) - ehci->big_endian_mmio = ehci->big_endian_desc = 1; - -+ if (of_property_read_bool(dev->dev.of_node, "ignore-oc")) -+ ehci->ignore_oc = 1; -+ - if (of_property_read_bool(dev->dev.of_node, - "needs-reset-on-resume")) - priv->reset_on_resume = true; diff --git a/target/linux/generic/backport-5.10/810-v5.13-usb-ehci-add-spurious-flag-to-disable-overcurrent-ch.patch b/target/linux/generic/backport-5.10/810-v5.13-usb-ehci-add-spurious-flag-to-disable-overcurrent-ch.patch new file mode 100644 index 0000000000..8f2021a0fc --- /dev/null +++ b/target/linux/generic/backport-5.10/810-v5.13-usb-ehci-add-spurious-flag-to-disable-overcurrent-ch.patch @@ -0,0 +1,88 @@ +From 2d5ba37461013253d2ff0a3641b727fd32ea97a9 Mon Sep 17 00:00:00 2001 +From: Florian Fainelli +Date: Tue, 23 Feb 2021 18:44:53 +0100 +Subject: [PATCH 1/3] usb: ehci: add spurious flag to disable overcurrent + checking +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This patch adds an ignore_oc flag which can be set by EHCI controller +not supporting or wanting to disable overcurrent checking. The EHCI +platform data in include/linux/usb/ehci_pdriver.h is also augmented to +take advantage of this new flag. + +Signed-off-by: Florian Fainelli +Signed-off-by: Álvaro Fernández Rojas +Link: https://lore.kernel.org/r/20210223174455.1378-2-noltari@gmail.com +Signed-off-by: Greg Kroah-Hartman +--- + drivers/usb/host/ehci-hcd.c | 2 +- + drivers/usb/host/ehci-hub.c | 4 ++-- + drivers/usb/host/ehci-platform.c | 2 ++ + drivers/usb/host/ehci.h | 1 + + include/linux/usb/ehci_pdriver.h | 1 + + 5 files changed, 7 insertions(+), 3 deletions(-) + +--- a/drivers/usb/host/ehci-hcd.c ++++ b/drivers/usb/host/ehci-hcd.c +@@ -651,7 +651,7 @@ static int ehci_run (struct usb_hcd *hcd + "USB %x.%x started, EHCI %x.%02x%s\n", + ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), + temp >> 8, temp & 0xff, +- ignore_oc ? ", overcurrent ignored" : ""); ++ (ignore_oc || ehci->spurious_oc) ? ", overcurrent ignored" : ""); + + ehci_writel(ehci, INTR_MASK, + &ehci->regs->intr_enable); /* Turn On Interrupts */ +--- a/drivers/usb/host/ehci-hub.c ++++ b/drivers/usb/host/ehci-hub.c +@@ -643,7 +643,7 @@ ehci_hub_status_data (struct usb_hcd *hc + * always set, seem to clear PORT_OCC and PORT_CSC when writing to + * PORT_POWER; that's surprising, but maybe within-spec. + */ +- if (!ignore_oc) ++ if (!ignore_oc && !ehci->spurious_oc) + mask = PORT_CSC | PORT_PEC | PORT_OCC; + else + mask = PORT_CSC | PORT_PEC; +@@ -1013,7 +1013,7 @@ int ehci_hub_control( + if (temp & PORT_PEC) + status |= USB_PORT_STAT_C_ENABLE << 16; + +- if ((temp & PORT_OCC) && !ignore_oc){ ++ if ((temp & PORT_OCC) && (!ignore_oc && !ehci->spurious_oc)){ + status |= USB_PORT_STAT_C_OVERCURRENT << 16; + + /* +--- a/drivers/usb/host/ehci-platform.c ++++ b/drivers/usb/host/ehci-platform.c +@@ -327,6 +327,8 @@ static int ehci_platform_probe(struct pl + hcd->has_tt = 1; + if (pdata->reset_on_resume) + priv->reset_on_resume = true; ++ if (pdata->spurious_oc) ++ ehci->spurious_oc = 1; + + #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO + if (ehci->big_endian_mmio) { +--- a/drivers/usb/host/ehci.h ++++ b/drivers/usb/host/ehci.h +@@ -218,6 +218,7 @@ struct ehci_hcd { /* one per controlle + unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ + unsigned need_oc_pp_cycle:1; /* MPC834X port power */ + unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ ++ unsigned spurious_oc:1; + + /* required for usb32 quirk */ + #define OHCI_CTRL_HCFS (3 << 6) +--- a/include/linux/usb/ehci_pdriver.h ++++ b/include/linux/usb/ehci_pdriver.h +@@ -50,6 +50,7 @@ struct usb_ehci_pdata { + unsigned no_io_watchdog:1; + unsigned reset_on_resume:1; + unsigned dma_mask_64:1; ++ unsigned spurious_oc:1; + + /* Turn on all power and clocks */ + int (*power_on)(struct platform_device *pdev); diff --git a/target/linux/generic/backport-5.10/811-v5.13-usb-host-ehci-platform-add-spurious_oc-DT-support.patch b/target/linux/generic/backport-5.10/811-v5.13-usb-host-ehci-platform-add-spurious_oc-DT-support.patch new file mode 100644 index 0000000000..0094d47718 --- /dev/null +++ b/target/linux/generic/backport-5.10/811-v5.13-usb-host-ehci-platform-add-spurious_oc-DT-support.patch @@ -0,0 +1,31 @@ +From 4da57dbbffdfa7fe4e2b70b047fc5ff95ff25a3d Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= +Date: Tue, 23 Feb 2021 18:44:55 +0100 +Subject: [PATCH 3/3] usb: host: ehci-platform: add spurious_oc DT support +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Over-current reporting isn't supported on some platforms such as bcm63xx. +These devices will incorrectly report over-current if this flag isn't properly +activated. + +Signed-off-by: Álvaro Fernández Rojas +Link: https://lore.kernel.org/r/20210223174455.1378-4-noltari@gmail.com +Signed-off-by: Greg Kroah-Hartman +--- + drivers/usb/host/ehci-platform.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/drivers/usb/host/ehci-platform.c ++++ b/drivers/usb/host/ehci-platform.c +@@ -286,6 +286,9 @@ static int ehci_platform_probe(struct pl + if (of_property_read_bool(dev->dev.of_node, "big-endian")) + ehci->big_endian_mmio = ehci->big_endian_desc = 1; + ++ if (of_property_read_bool(dev->dev.of_node, "spurious-oc")) ++ ehci->spurious_oc = 1; ++ + if (of_property_read_bool(dev->dev.of_node, + "needs-reset-on-resume")) + priv->reset_on_resume = true; diff --git a/target/linux/generic/backport-5.4/850-v5.13-usb-ehci-add-spurious-flag-to-disable-overcurrent-ch.patch b/target/linux/generic/backport-5.4/850-v5.13-usb-ehci-add-spurious-flag-to-disable-overcurrent-ch.patch new file mode 100644 index 0000000000..bda1d1df36 --- /dev/null +++ b/target/linux/generic/backport-5.4/850-v5.13-usb-ehci-add-spurious-flag-to-disable-overcurrent-ch.patch @@ -0,0 +1,88 @@ +From 2d5ba37461013253d2ff0a3641b727fd32ea97a9 Mon Sep 17 00:00:00 2001 +From: Florian Fainelli +Date: Tue, 23 Feb 2021 18:44:53 +0100 +Subject: [PATCH 1/3] usb: ehci: add spurious flag to disable overcurrent + checking +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This patch adds an ignore_oc flag which can be set by EHCI controller +not supporting or wanting to disable overcurrent checking. The EHCI +platform data in include/linux/usb/ehci_pdriver.h is also augmented to +take advantage of this new flag. + +Signed-off-by: Florian Fainelli +Signed-off-by: Álvaro Fernández Rojas +Link: https://lore.kernel.org/r/20210223174455.1378-2-noltari@gmail.com +Signed-off-by: Greg Kroah-Hartman +--- + drivers/usb/host/ehci-hcd.c | 2 +- + drivers/usb/host/ehci-hub.c | 4 ++-- + drivers/usb/host/ehci-platform.c | 2 ++ + drivers/usb/host/ehci.h | 1 + + include/linux/usb/ehci_pdriver.h | 1 + + 5 files changed, 7 insertions(+), 3 deletions(-) + +--- a/drivers/usb/host/ehci-hcd.c ++++ b/drivers/usb/host/ehci-hcd.c +@@ -651,7 +651,7 @@ static int ehci_run (struct usb_hcd *hcd + "USB %x.%x started, EHCI %x.%02x%s\n", + ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), + temp >> 8, temp & 0xff, +- ignore_oc ? ", overcurrent ignored" : ""); ++ (ignore_oc || ehci->spurious_oc) ? ", overcurrent ignored" : ""); + + ehci_writel(ehci, INTR_MASK, + &ehci->regs->intr_enable); /* Turn On Interrupts */ +--- a/drivers/usb/host/ehci-hub.c ++++ b/drivers/usb/host/ehci-hub.c +@@ -643,7 +643,7 @@ ehci_hub_status_data (struct usb_hcd *hc + * always set, seem to clear PORT_OCC and PORT_CSC when writing to + * PORT_POWER; that's surprising, but maybe within-spec. + */ +- if (!ignore_oc) ++ if (!ignore_oc && !ehci->spurious_oc) + mask = PORT_CSC | PORT_PEC | PORT_OCC; + else + mask = PORT_CSC | PORT_PEC; +@@ -1013,7 +1013,7 @@ int ehci_hub_control( + if (temp & PORT_PEC) + status |= USB_PORT_STAT_C_ENABLE << 16; + +- if ((temp & PORT_OCC) && !ignore_oc){ ++ if ((temp & PORT_OCC) && (!ignore_oc && !ehci->spurious_oc)){ + status |= USB_PORT_STAT_C_OVERCURRENT << 16; + + /* +--- a/drivers/usb/host/ehci-platform.c ++++ b/drivers/usb/host/ehci-platform.c +@@ -319,6 +319,8 @@ static int ehci_platform_probe(struct pl + hcd->has_tt = 1; + if (pdata->reset_on_resume) + priv->reset_on_resume = true; ++ if (pdata->spurious_oc) ++ ehci->spurious_oc = 1; + + #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO + if (ehci->big_endian_mmio) { +--- a/drivers/usb/host/ehci.h ++++ b/drivers/usb/host/ehci.h +@@ -218,6 +218,7 @@ struct ehci_hcd { /* one per controlle + unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ + unsigned need_oc_pp_cycle:1; /* MPC834X port power */ + unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ ++ unsigned spurious_oc:1; + + /* required for usb32 quirk */ + #define OHCI_CTRL_HCFS (3 << 6) +--- a/include/linux/usb/ehci_pdriver.h ++++ b/include/linux/usb/ehci_pdriver.h +@@ -50,6 +50,7 @@ struct usb_ehci_pdata { + unsigned no_io_watchdog:1; + unsigned reset_on_resume:1; + unsigned dma_mask_64:1; ++ unsigned spurious_oc:1; + + /* Turn on all power and clocks */ + int (*power_on)(struct platform_device *pdev); diff --git a/target/linux/generic/backport-5.4/851-v5.13-usb-host-ehci-platform-add-spurious_oc-DT-support.patch b/target/linux/generic/backport-5.4/851-v5.13-usb-host-ehci-platform-add-spurious_oc-DT-support.patch new file mode 100644 index 0000000000..6faefeb79c --- /dev/null +++ b/target/linux/generic/backport-5.4/851-v5.13-usb-host-ehci-platform-add-spurious_oc-DT-support.patch @@ -0,0 +1,31 @@ +From 4da57dbbffdfa7fe4e2b70b047fc5ff95ff25a3d Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= +Date: Tue, 23 Feb 2021 18:44:55 +0100 +Subject: [PATCH 3/3] usb: host: ehci-platform: add spurious_oc DT support +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Over-current reporting isn't supported on some platforms such as bcm63xx. +These devices will incorrectly report over-current if this flag isn't properly +activated. + +Signed-off-by: Álvaro Fernández Rojas +Link: https://lore.kernel.org/r/20210223174455.1378-4-noltari@gmail.com +Signed-off-by: Greg Kroah-Hartman +--- + drivers/usb/host/ehci-platform.c | 3 +++ + 1 file changed, 3 insertions(+) + +--- a/drivers/usb/host/ehci-platform.c ++++ b/drivers/usb/host/ehci-platform.c +@@ -278,6 +278,9 @@ static int ehci_platform_probe(struct pl + if (of_property_read_bool(dev->dev.of_node, "big-endian")) + ehci->big_endian_mmio = ehci->big_endian_desc = 1; + ++ if (of_property_read_bool(dev->dev.of_node, "spurious-oc")) ++ ehci->spurious_oc = 1; ++ + if (of_property_read_bool(dev->dev.of_node, + "needs-reset-on-resume")) + priv->reset_on_resume = true; diff --git a/target/linux/generic/pending-5.10/110-ehci_hcd_ignore_oc.patch b/target/linux/generic/pending-5.10/110-ehci_hcd_ignore_oc.patch deleted file mode 100644 index 138d4fa1c5..0000000000 --- a/target/linux/generic/pending-5.10/110-ehci_hcd_ignore_oc.patch +++ /dev/null @@ -1,79 +0,0 @@ -From: Florian Fainelli -Subject: USB: EHCI: add ignore_oc flag to disable overcurrent checking - -This patch adds an ignore_oc flag which can be set by EHCI controller -not supporting or wanting to disable overcurrent checking. The EHCI -platform data in include/linux/usb/ehci_pdriver.h is also augmented to -take advantage of this new flag. - -Signed-off-by: Florian Fainelli ---- - drivers/usb/host/ehci-hcd.c | 2 +- - drivers/usb/host/ehci-hub.c | 4 ++-- - drivers/usb/host/ehci-platform.c | 1 + - drivers/usb/host/ehci.h | 1 + - include/linux/usb/ehci_pdriver.h | 1 + - 5 files changed, 6 insertions(+), 3 deletions(-) - ---- a/drivers/usb/host/ehci-hcd.c -+++ b/drivers/usb/host/ehci-hcd.c -@@ -651,7 +651,7 @@ static int ehci_run (struct usb_hcd *hcd - "USB %x.%x started, EHCI %x.%02x%s\n", - ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), - temp >> 8, temp & 0xff, -- ignore_oc ? ", overcurrent ignored" : ""); -+ (ignore_oc || ehci->ignore_oc) ? ", overcurrent ignored" : ""); - - ehci_writel(ehci, INTR_MASK, - &ehci->regs->intr_enable); /* Turn On Interrupts */ ---- a/drivers/usb/host/ehci-hub.c -+++ b/drivers/usb/host/ehci-hub.c -@@ -643,7 +643,7 @@ ehci_hub_status_data (struct usb_hcd *hc - * always set, seem to clear PORT_OCC and PORT_CSC when writing to - * PORT_POWER; that's surprising, but maybe within-spec. - */ -- if (!ignore_oc) -+ if (!ignore_oc && !ehci->ignore_oc) - mask = PORT_CSC | PORT_PEC | PORT_OCC; - else - mask = PORT_CSC | PORT_PEC; -@@ -1013,7 +1013,7 @@ int ehci_hub_control( - if (temp & PORT_PEC) - status |= USB_PORT_STAT_C_ENABLE << 16; - -- if ((temp & PORT_OCC) && !ignore_oc){ -+ if ((temp & PORT_OCC) && (!ignore_oc && !ehci->ignore_oc)){ - status |= USB_PORT_STAT_C_OVERCURRENT << 16; - - /* ---- a/drivers/usb/host/ehci-platform.c -+++ b/drivers/usb/host/ehci-platform.c -@@ -327,6 +327,8 @@ static int ehci_platform_probe(struct pl - hcd->has_tt = 1; - if (pdata->reset_on_resume) - priv->reset_on_resume = true; -+ if (pdata->ignore_oc) -+ ehci->ignore_oc = 1; - - #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO - if (ehci->big_endian_mmio) { ---- a/drivers/usb/host/ehci.h -+++ b/drivers/usb/host/ehci.h -@@ -218,6 +218,7 @@ struct ehci_hcd { /* one per controlle - unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ - unsigned need_oc_pp_cycle:1; /* MPC834X port power */ - unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ -+ unsigned ignore_oc:1; - - /* required for usb32 quirk */ - #define OHCI_CTRL_HCFS (3 << 6) ---- a/include/linux/usb/ehci_pdriver.h -+++ b/include/linux/usb/ehci_pdriver.h -@@ -50,6 +50,7 @@ struct usb_ehci_pdata { - unsigned no_io_watchdog:1; - unsigned reset_on_resume:1; - unsigned dma_mask_64:1; -+ unsigned ignore_oc:1; - - /* Turn on all power and clocks */ - int (*power_on)(struct platform_device *pdev); diff --git a/target/linux/generic/pending-5.4/110-ehci_hcd_ignore_oc.patch b/target/linux/generic/pending-5.4/110-ehci_hcd_ignore_oc.patch deleted file mode 100644 index ce583ceac5..0000000000 --- a/target/linux/generic/pending-5.4/110-ehci_hcd_ignore_oc.patch +++ /dev/null @@ -1,79 +0,0 @@ -From: Florian Fainelli -Subject: USB: EHCI: add ignore_oc flag to disable overcurrent checking - -This patch adds an ignore_oc flag which can be set by EHCI controller -not supporting or wanting to disable overcurrent checking. The EHCI -platform data in include/linux/usb/ehci_pdriver.h is also augmented to -take advantage of this new flag. - -Signed-off-by: Florian Fainelli ---- - drivers/usb/host/ehci-hcd.c | 2 +- - drivers/usb/host/ehci-hub.c | 4 ++-- - drivers/usb/host/ehci-platform.c | 1 + - drivers/usb/host/ehci.h | 1 + - include/linux/usb/ehci_pdriver.h | 1 + - 5 files changed, 6 insertions(+), 3 deletions(-) - ---- a/drivers/usb/host/ehci-hcd.c -+++ b/drivers/usb/host/ehci-hcd.c -@@ -651,7 +651,7 @@ static int ehci_run (struct usb_hcd *hcd - "USB %x.%x started, EHCI %x.%02x%s\n", - ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), - temp >> 8, temp & 0xff, -- ignore_oc ? ", overcurrent ignored" : ""); -+ (ignore_oc || ehci->ignore_oc) ? ", overcurrent ignored" : ""); - - ehci_writel(ehci, INTR_MASK, - &ehci->regs->intr_enable); /* Turn On Interrupts */ ---- a/drivers/usb/host/ehci-hub.c -+++ b/drivers/usb/host/ehci-hub.c -@@ -643,7 +643,7 @@ ehci_hub_status_data (struct usb_hcd *hc - * always set, seem to clear PORT_OCC and PORT_CSC when writing to - * PORT_POWER; that's surprising, but maybe within-spec. - */ -- if (!ignore_oc) -+ if (!ignore_oc && !ehci->ignore_oc) - mask = PORT_CSC | PORT_PEC | PORT_OCC; - else - mask = PORT_CSC | PORT_PEC; -@@ -1013,7 +1013,7 @@ int ehci_hub_control( - if (temp & PORT_PEC) - status |= USB_PORT_STAT_C_ENABLE << 16; - -- if ((temp & PORT_OCC) && !ignore_oc){ -+ if ((temp & PORT_OCC) && (!ignore_oc && !ehci->ignore_oc)){ - status |= USB_PORT_STAT_C_OVERCURRENT << 16; - - /* ---- a/drivers/usb/host/ehci-platform.c -+++ b/drivers/usb/host/ehci-platform.c -@@ -319,6 +319,8 @@ static int ehci_platform_probe(struct pl - hcd->has_tt = 1; - if (pdata->reset_on_resume) - priv->reset_on_resume = true; -+ if (pdata->ignore_oc) -+ ehci->ignore_oc = 1; - - #ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO - if (ehci->big_endian_mmio) { ---- a/drivers/usb/host/ehci.h -+++ b/drivers/usb/host/ehci.h -@@ -218,6 +218,7 @@ struct ehci_hcd { /* one per controlle - unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ - unsigned need_oc_pp_cycle:1; /* MPC834X port power */ - unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ -+ unsigned ignore_oc:1; - - /* required for usb32 quirk */ - #define OHCI_CTRL_HCFS (3 << 6) ---- a/include/linux/usb/ehci_pdriver.h -+++ b/include/linux/usb/ehci_pdriver.h -@@ -50,6 +50,7 @@ struct usb_ehci_pdata { - unsigned no_io_watchdog:1; - unsigned reset_on_resume:1; - unsigned dma_mask_64:1; -+ unsigned ignore_oc:1; - - /* Turn on all power and clocks */ - int (*power_on)(struct platform_device *pdev);