om: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, December 04, 2013 9:29 AM
> To: Chris Ruehl; ba...@ti.com
> Cc: gre...@linuxfoundation.org; thierry.red...@gmail.com; linux-
> u...@vger.kernel.org; linux-te...@vger.kernel.org; linux-
> ker...@vger.kernel.org; Venu Byravaras
> -Original Message-
> From: Chris Ruehl [mailto:chris.ru...@gtsys.com.hk]
> Sent: Monday, November 18, 2013 11:56 AM
> To: linux-usb@vger.kernel.org; Venu Byravarasu; Greg Kroah-Hartman
> Subject: phy-tegra-usb.c: wrong pointer check for remap UTMI
>
>
> While
delta from v3:
This patch series is prepared as follow up of TEGRA USB PHY driver patch series
discussed at: https://lkml.org/lkml/2013/5/10/241
Venu Byravarasu (8):
ARM: tegra: finalize USB EHCI and PHY bindings
arm: dt: Tegra20: Modify ULPI reset GPIO properties
ARM: tegra: update device
1. All Tegra20 ULPI reset GPIO DT properties are modified to indicate active
low nature of the GPIO.
2. Placed USB PHY DT node immediately below the EHCI controller DT nodes
and corrected reg value in the name of USB PHY DT node.
Signed-off-by: Venu Byravarasu
---
delta from v3:
No code changes
In case if clk_get_sys fails, return correct error value provided by
the API.
Signed-off-by: Venu Byravarasu
---
delta from v1, v2 & v3: no change.
drivers/usb/phy/phy-tegra-usb.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/phy/phy-tegra-usb
As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.
Signed-off-by: Venu Byravarasu
---
delta from v1, v2 & v3: no change.
drivers/usb/phy/phy-tegra-usb.c |
based handling in host driver.
Made use of DT params to get the PHY Pad registers.
Signed-off-by: Venu Byravarasu
---
delta from v3:
Removed functions pointers to access PORTSC registers from PHY & accessing
them from PHY using exported functions.
delta from v2:
Rebased to TOT and applied
Check return values from all GPIO APIs and handle errors accordingly.
Remove the call to clk_disable_unprepare(); this function does not
prepare or enable the clock, so the error path should not disable or
unprepare it.
Signed-off-by: Venu Byravarasu
---
delta from v3:
Modified comment section
Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.
Signed-off-by: Venu Byravarasu
---
delta from v3 & v2:
No change
delta from v1:
replaced gadget with peripheral.
drivers/usb/host/ehci-tegra.c |1 -
drivers/usb/phy/phy-tegra-usb.c |
driver has been updated to assume the new bindings.
Signed-off-by: Venu Byravarasu
---
delta from v3:
Added status field to USB PHY DT nodes.
delta from v2:
1. Removed dr_mode setting to otg, due to lack of knowledge of all Vbus
supplies,
on all target platforms.
2. All changes related to 'n
an a plain GPIO
6) Added nvidia,is-wired property to indicate whether the device is
hard wired on the board, or pluggable.
This patch fixes the binding definition to resolve these issues.
Signed-off-by: Venu Byravarasu
---
delta from v3:
Added a blank line at EOF of nvidia,tegra20-usb-phy.txt.
.
Signed-off-by: Venu Byravarasu
---
delta from v1:
1. Fixed voltage regulators were used for vbus-supply
2. Added UTMI PHY timing Parameters to DT.
delta from v2:
1. Removed dr_mode setting to otg, due to:
a. Any ways existing Tegra USB driver does not support OTG.
b. lack of knowledge of all Vbus
changes with this patch:
1. All Tegra20 ULPI reset GPIO DT properties are modified to indicate active
low nature of the GPIO.
2. Placed USB PHY DT node immediately below the EHCI controller DT nodes
and corrected reg value in the name of USB PHY DT node.
Signed-off-by: Venu Byravarasu
This reverts commit ee5d5499edb94cd03738a52a7e234b139da8fd72.
Signed-off-by: Venu Byravarasu
---
As PHY is being registered as separate driver, solution proposed with
this patch cannot work anymore.
Hence pushed patch 10 of this series to address the issue.
drivers/usb/host/ehci-tegra.c
As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.
Signed-off-by: Venu Byravarasu
---
delta from v1 & v2: no change.
drivers/usb/phy/phy-tegra-usb.c |
Check return values from all GPIO APIs and handle errors accordingly.
Remove the call to clk_disable_unprepare(); this function does not
prepare or enable the clock, so the error path should not disable or
unprepare it.
Signed-off-by: Venu Byravarasu
---
delta from v1:
no changes.
delta from
In case if clk_get_sys fails, return correct error value provided by
the API.
Signed-off-by: Venu Byravarasu
---
delta from v1 & v2: no change.
drivers/usb/phy/phy-tegra-usb.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/dri
Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.
Signed-off-by: Venu Byravarasu
---
delta from v1:
replaced gadget with peripheral.
delta from v2:
No change
drivers/usb/host/ehci-tegra.c |3 +--
drivers/usb/phy/phy-tegra-usb.c | 13
based handling in host driver.
Made use of DT params to get the PHY Pad registers.
Signed-off-by: Venu Byravarasu
---
delta from v1:
1. Removed extra memory allocation for u_phy->otg
2. Moved ulpi_init code into separate function.
3. Initializing all clk and GPIOs in probe.
4. Used devm_ A
Changes with this patch:
1. As PHY is being registered as separate platform driver & EHCI Tegra
is no more calling PHY open, moved tegra_ehci_set_pts & tegra_ehci_set_phcd
functions to PHY driver,
2. Removed unused defines for multiple USB port base addresses
Signed-off-by: Venu By
an a plain GPIO
6) Added nvidia,is-wired property to indicate whether the device is
hard wired on the board, or pluggable.
This patch fixes the binding definition to resolve these issues.
Signed-off-by: Venu Byravarasu
---
delta from v1:
1. added UTMI PHY timing params.
2. replaced gadget with
delta from v2:
This patch is prepared as follow up patch of TEGRA USB PHY driver
patch series discussed at:
http://marc.info/?l=linux-tegra&m=136497946026787&w=2
Venu Byravarasu (10):
ARM: tegra: finalize USB EHCI and PHY bindings
arm: dt: Tegra20: Modify ULPI reset GPIO properti
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Thursday, April 04, 2013 12:47 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; ba...@ti.com;
> st...@rowland.harvard.edu; linux-te...@vger.kernel.org; linux-
> u...@vger.
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Thursday, April 04, 2013 1:06 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; ba...@ti.com;
> st...@rowland.harvard.edu; linux-te...@vger.kernel.org; linux-
> u...@vger.
> -Original Message-
> From: linux-tegra-ow...@vger.kernel.org [mailto:linux-tegra-
> ow...@vger.kernel.org] On Behalf Of Stephen Warren
> Sent: Thursday, April 04, 2013 12:38 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; ba...@ti.com;
> st...@rowland.
or the operating mode isn't set
> to TEGRA_USB_OTG) and is therefore NULL. Add a separate label for error
> unwinding and initialize the transceiver field to ERR_PTR(-ENODEV) when
> the operating mode isn't TEGRA_USB_OTG to allow for consistent checking.
This change looks good to me.
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Tuesday, April 02, 2013 9:02 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu; linux-
> u...@vger.kernel.org; linux-ker...@vger.kernel.org
> Subject:
To clear any configurations made by U-Boot on Tegra USB controller,
reset it before init in probe.
Signed-off-by: Venu Byravarasu
Acked-by: Alan Stern
Acked-by: Greg Kroah-Hartman
reviewed-by: Stephen Warren
---
This patch was already reviewed at:
http://marc.info/?l=linux-usb&a
an a plain GPIO
6) Added nvidia,is-wired property to indicate whether the device is
hard wired on the board, or pluggable.
This patch fixes the binding definition to resolve these issues.
Signed-off-by: Venu Byravarasu
---
delta from v1:
1. added UTMI PHY timing params.
2. replaced gadget with
Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.
Signed-off-by: Venu Byravarasu
---
delta from v1:
replaced gadget with peripheral.
drivers/usb/host/ehci-tegra.c |3 +--
drivers/usb/phy/phy-tegra-usb.c | 13 +++--
include/linux/usb
delta from v1:
This patch is prepared as follow up patch of TEGRA USB PHY driver
patch series being discussed at:
http://marc.info/?l=linux-tegra&m=136361016003625&w=2
Venu Byravarasu (7):
ARM: tegra: finalize USB EHCI and PHY bindings
ARM: tegra: update device trees for USB bindin
driver has been updated to assume the new bindings.
Signed-off-by: Venu Byravarasu
---
delta from v1:
1. Fixed voltage regulators were used for vbus-supply
2. Added UTMI PHY timing Parameters to DT.
arch/arm/boot/dts/tegra20-colibri-512.dtsi |4 ++
arch/arm/boot/dts/tegra20-harmony.dts
In case if clk_get_sys fails, return correct error value provided by
the API.
Signed-off-by: Venu Byravarasu
---
delta from v1: no change.
drivers/usb/phy/phy-tegra-usb.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb
based handling in host driver.
Made use of DT params to get the PHY Pad registers.
Signed-off-by: Venu Byravarasu
---
delta from v1:
1. Removed extra memory allocation for u_phy->otg
2. Moved ulpi_init code into separate function.
3. Initializing all clk and GPIOs in probe.
4. Used devm_ A
Check return values from all GPIO APIs and handle errors accordingly.
Remove clk_disable_unprepare which is no more needed.
Signed-off-by: Venu Byravarasu
---
delta from v2: no change.
drivers/usb/phy/phy-tegra-usb.c | 50 ++
1 files changed, 39 insertions
As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.
Signed-off-by: Venu Byravarasu
---
delta from v2: no change.
drivers/usb/phy/phy-tegra-usb.c | 25 +++--
include
> -Original Message-
> From: gre...@linuxfoundation.org [mailto:gre...@linuxfoundation.org]
> Sent: Tuesday, March 05, 2013 6:04 AM
> To: Stephen Warren
> Cc: Venu Byravarasu; st...@rowland.harvard.edu; linux-
> u...@vger.kernel.org; linux-ker...@vger.kernel.org
> Sub
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, March 20, 2013 1:51 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kern
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Wednesday, March 20, 2013 5:55 PM
> To: Venu Byravarasu
> Cc: kishon; gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, March 20, 2013 1:29 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kern
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, March 20, 2013 1:24 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kern
> -Original Message-
> From: kishon [mailto:kis...@ti.com]
> Sent: Wednesday, March 20, 2013 4:53 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org;
> swar...@ww
> -Original Message-
> From: kishon [mailto:kis...@ti.com]
> Sent: Wednesday, March 20, 2013 4:49 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org;
> swar...@ww
> -Original Message-
> From: Venu Byravarasu
> Sent: Wednesday, March 20, 2013 11:30 AM
> To: 'Stephen Warren'
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org;
> linux-te
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, March 20, 2013 1:22 AM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kern
> -Original Message-
> From: linux-usb-ow...@vger.kernel.org [mailto:linux-usb-
> ow...@vger.kernel.org] On Behalf Of Sergei Shtylyov
> Sent: Monday, March 18, 2013 6:32 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba
As part of this series, apart from patch containing changes to register TEGRA
USB PHY driver as platform driver, prepared below patches:
1. Re-arranging & adding new DT properties.
2. Getting various params from DT properties added.
3. code clean up.
Venu Byravarasu (7):
ARM: tegra: fina
In case if clk_get_sys fails, return correct error value provided by
the API.
Signed-off-by: Venu Byravarasu
---
drivers/usb/phy/tegra_usb_phy.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c
index
Check return values from all GPIO APIs and handle errors accordingly.
Remove clk_disable_unprepare which is no more needed.
Signed-off-by: Venu Byravarasu
---
drivers/usb/phy/tegra_usb_phy.c | 50 ++
1 files changed, 39 insertions(+), 11 deletions(-)
diff
Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.
Signed-off-by: Venu Byravarasu
---
drivers/usb/host/ehci-tegra.c |3 +--
drivers/usb/phy/tegra_usb_phy.c | 13 +++--
include/linux/usb/tegra_usb_phy.h |3 ++-
3 files changed, 14
driver has been updated to assume the new bindings.
Signed-off-by: Venu Byravarasu
---
arch/arm/boot/dts/tegra20-colibri-512.dtsi |4 +++
arch/arm/boot/dts/tegra20-harmony.dts |8 +++---
arch/arm/boot/dts/tegra20-iris-512.dts |4 +++
arch/arm/boot/dts/tegra20-paz00.dts
based handling in host driver.
Made use of DT params to get the PHY Pad registers.
Merged tegra_phy_init into tegra_usb_phy_init.
Signed-off-by: Venu Byravarasu
---
drivers/usb/host/ehci-tegra.c | 99 ++--
drivers/usb/phy/tegra_usb_phy.c | 308
As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.
Signed-off-by: Venu Byravarasu
---
drivers/usb/phy/tegra_usb_phy.c | 25 +++--
include/linux/usb/tegra_usb_phy.h
x27;s register space. We can't assume the PHY1
driver is present, so the PHY3 driver will directly access those
registers.
3) The list of clocks required by the PHY was missing some required
entries.
This patch fixes the binding definition to resolve these issues.
Signed-off-by: Venu
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Friday, March 08, 2013 1:08 PM
> To: Venu Byravarasu
> Cc: Stephen Warren; Felipe Balbi; Linux USB Mailing List; Greg KH; linux-
> te...@vger.kernel.org; s.ha...@pengutronix.de; sachin.ka...@li
> -Original Message-
> From: linux-tegra-ow...@vger.kernel.org [mailto:linux-tegra-
> ow...@vger.kernel.org] On Behalf Of Stephen Warren
> Sent: Friday, March 08, 2013 2:07 AM
> To: Felipe Balbi; Venu Byravarasu
> Cc: Linux USB Mailing List; Greg KH; linux-te...@vger.
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Thursday, February 28, 2013 11:47 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu; linux-
> u...@vger.kernel.org; linux-ker...@vger.kernel.org
> Sub
To clear any configurations made by U-Boot on Tegra USB controller,
reset it before init in probe.
Signed-off-by: Venu Byravarasu
---
When U-Boot configures a Tegra USB controller in device mode and if the EHCI
driver of kernel tries to set it to HOST mode, message "irq 52: nobody cared&quo
> -Original Message-
> From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel-
> ow...@vger.kernel.org] On Behalf Of Stephen Warren
> Sent: Thursday, February 07, 2013 10:26 PM
> To: kishon
> Cc: Venu Byravarasu; ba...@ti.com; gre...@linuxfoundation
As drivers/usb/otg/otg.c contains most of the PHY related APIs which
are not OTG specific, moving them to more logical place under
drivers/usb/phy.
Signed-off-by: Venu Byravarasu
---
delta from v2:
renamed usb_phy.c to phy.c.
delta from v1:
Missed adding newly created file usb_phy.c with
As pointer to PHY structure can be stored in struct usb_hcd
making use of it, to call Tegra PHY APIs.
Call to usb_phy_shutdown() is moved up in tegra_ehci_remove(),
so that to avoid dereferencing of hcd after its freed up.
Signed-off-by: Venu Byravarasu
---
First version of patch can be found
> -Original Message-
> From: linux-tegra-ow...@vger.kernel.org [mailto:linux-tegra-
> ow...@vger.kernel.org] On Behalf Of Stephen Warren
> Sent: Wednesday, January 23, 2013 5:58 AM
> To: Alan Stern; Greg Kroah-Hartman; Stephen Warren
> Cc: Venu Byravarasu; linux-te.
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, January 23, 2013 6:03 AM
> To: Venu Byravarasu
> Cc: Alan Stern; Greg Kroah-Hartman; linux-te...@vger.kernel.org; linux-arm-
> ker...@lists.infradead.org; linux-usb@vger.kernel.o
> -Original Message-
> From: Roger Quadros [mailto:rog...@ti.com]
> Sent: Tuesday, January 22, 2013 7:51 PM
> To: Venu Byravarasu
> Cc: ba...@ti.com; gre...@linuxfoundation.org; linux-usb@vger.kernel.org;
> linux-ker...@vger.kernel.org
> Subject: Re: [PATCH v2] usb: ph
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Tuesday, January 22, 2013 4:31 PM
> To: Venu Byravarasu
> Cc: ba...@ti.com; gre...@linuxfoundation.org; linux-usb@vger.kernel.org;
> linux-ker...@vger.kernel.org
> Subject: Re: [PATCH] usb: ph
As drivers/usb/otg/otg.c contains most of the PHY related APIs
which are not OTG specific, moving them to more logical place
under driver/usb/phy.
Signed-off-by: Venu Byravarasu
---
delta from v1:
Missed adding newly created file usb_phy.c with previous patch.
hence sending v2, after adding that
As drivers/usb/otg/otg.c contains most of the PHY related APIs
which are not OTG specific, moving them to more logical place
under driver/usb/phy.
Signed-off-by: Venu Byravarasu
---
drivers/usb/otg/otg.c| 184 --
drivers/usb/phy/Makefile |1
As Tegra PHY driver needs to access one of the Host registers,
added few APIs.
Signed-off-by: Venu Byravarasu
---
delta from v2:
Renamed USB_PORTSC1 to TEGRA_USB_PORTSC1.
Removed tegra_ehci_set_wakeon_events() and its references.
Used standard defines for accessing PORTSC fields defined in
> -Original Message-
> From: Venu Byravarasu
> Sent: Friday, January 18, 2013 10:26 AM
> To: 'Alan Stern'
> Cc: gre...@linuxfoundation.org; ba...@ti.com; linux-usb@vger.kernel.org;
> linux-ker...@vger.kernel.org; swar...@wwwdotorg.org; linux-
> te...@vger.k
> -Original Message-
> From: Alan Stern [mailto:st...@rowland.harvard.edu]
> Sent: Thursday, January 17, 2013 9:34 PM
> To: Felipe Balbi
> Cc: Venu Byravarasu; gre...@linuxfoundation.org; linux-
> u...@vger.kernel.org; linux-ker...@vger.kernel.org;
> swar...@ww
> -Original Message-
> From: Alan Stern [mailto:st...@rowland.harvard.edu]
> Sent: Thursday, January 17, 2013 8:45 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; ba...@ti.com; linux-usb@vger.kernel.org;
> linux-ker...@vger.kernel.org; swar...@wwwdotor
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Thursday, January 17, 2013 2:33 PM
> To: Venu Byravarasu
> Cc: gre...@linuxfoundation.org; st...@rowland.harvard.edu;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org;
>
As Tegra PHY driver need to access one of the Host registers,
added few APIs to ehci tegra driver.
Signed-off-by: Venu Byravarasu
---
delta from v1:
Taken care of RWC bits, while accessing PORTSC register.
drivers/usb/host/ehci-tegra.c | 70 -
drivers
Tegra20 USB has 3 PHY instances:
Instance 1 and 3 are UTMI. Instance 2 is ULPI.
As instance number was used to differentiate ULPI from UTMI,
used DT param to get this info and processed accordingly.
Signed-off-by: Venu Byravarasu
---
drivers/usb/phy/tegra_usb_phy.c | 23
Tegra20 USB has 3 PHY instances. Instance 0 is based on
legacy PHY interface and other two are standard interfaces.
As instance number was used to differentiate legacy from
standard interfaces, used DT param to get this info and
processed accordingly.
Signed-off-by: Venu Byravarasu
---
drivers
Add DT nodes for Tegra USB PHY along with related documentation.
Also added a phandle property to controller DT node, for referring
to connected PHY instance.
Signed-off-by: Venu Byravarasu
---
.../bindings/usb/nvidia,tegra20-ehci.txt |1 +
.../bindings/usb/nvidia,tegra20-usb
As Tegra PHY driver needs to access one of the Host registers,
added few APIs.
Signed-off-by: Venu Byravarasu
---
drivers/usb/host/ehci-tegra.c | 71 -
drivers/usb/phy/tegra_usb_phy.c | 51 +++
include/linux/usb
PHY driver and added APIs to ehci driver for
this purpose.
Venu Byravarasu (4):
arm: tegra: Add DT nodes for Tegra USB PHY
USB: PHY: Get rid of instance number to differentiate legacy
controller
USB: PHY: Tegra: Get rid of instance number to differentiate PHY type
usb: Add APIs to
As tegra_usb_phy_clk_disable/enable() are not being
used, removing them.
Signed-off-by: Venu Byravarasu
---
drivers/usb/phy/tegra_usb_phy.c | 13 -
include/linux/usb/tegra_usb_phy.h |4
2 files changed, 0 insertions(+), 17 deletions(-)
diff --git a/drivers/usb/phy
Tegra USB host driver is using port instance number,
to handle some of the hardware issues on SOC e.g. reset PORT0
twice etc. As instance number based handling looks ugly,
making use of information passed through DT for achieving this.
Signed-off-by: Venu Byravarasu
Acked-by: Alan Stern
As Tegra USB host driver is using instance number for resetting
PORT0 twice, adding a new DT property for handling this.
Signed-off-by: Venu Byravarasu
---
.../bindings/usb/nvidia,tegra20-ehci.txt |2 ++
arch/arm/boot/dts/tegra20.dtsi |1 +
2 files changed
reset the port second time.
Venu Byravarasu (2):
arm: tegra: Add new DT property to USB node.
usb: host: tegra: Resetting PORT0 based on information received via
DT.
.../bindings/usb/nvidia,tegra20-ehci.txt |2 ++
arch/arm/boot/dts/tegra20.dtsi |1
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Saturday, December 22, 2012 2:32 AM
> To: Venu Byravarasu
> Cc: st...@rowland.harvard.edu; gre...@linuxfoundation.org;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kernel
Thanks Stephen.
Venu
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Saturday, December 22, 2012 2:25 AM
> To: Venu Byravarasu
> Cc: ba...@ti.com; gre...@linuxfoundation.org; sshtyl...@mvista.com;
> linux-ker...@vger.ker
used on USB PHY instance 1 & UTMI is
used on other two instances. Hence modified PHY type
detection also from instance number to the parameter
passed from host driver.
Signed-off-by: Venu Byravarasu
---
As PHY instance 2 is of UTMI type with non legacy interface,
replaced "phy->instanc
Use kzalloc instead of kmalloc to allocate struct tegra_usb_phy.
This ensures that all function pointers in member u_phy are
initialized to NULL.
Signed-off-by: Venu Byravarasu
---
This patch is v3 patch for the patch discussed at
http://marc.info/?l=linux-kernel&m=135599303216132&w=2
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Wednesday, December 19, 2012 11:08 PM
> To: Venu Byravarasu
> Cc: ba...@ti.com; gre...@linuxfoundation.org; linux-
> ker...@vger.kernel.org; linux-usb@vger.kernel.org
> Subject: Re: [P
As Tegra PHY driver open is using kmalloc,
changing it to kzalloc.
Signed-off-by: Venu Byravarasu
---
This patch is v2 patch for the patch discussed at
http://marc.info/?l=linux-usb&m=135593869431766&w=2
drivers/usb/phy/tegra_usb_phy.c |2 +-
1 files changed, 1 insertions(+), 1 d
> -Original Message-
> From: Stephen Warren [mailto:swar...@wwwdotorg.org]
> Sent: Tuesday, December 18, 2012 10:03 PM
> To: Venu Byravarasu
> Cc: ba...@ti.com; gre...@linuxfoundation.org; linux-
> ker...@vger.kernel.org; linux-usb@vger.kernel.org
> Subject: Re: [P
As pointer to PHY structure can be stored in struct usb_hcd
making use of it, to call PHY APIs.
Call to usb_phy_shutdown() is moved up in tegra_ehci_remove(),
so that to avoid dereferencing of hcd after its freed up.
Signed-off-by: Venu Byravarasu
---
This patch depends on patch
http
Using devm_kzalloc for allocating memory needed for PHY
pointer and hence removing kfree calls to PHY pointer.
Signed-off-by: Venu Byravarasu
---
drivers/usb/phy/tegra_usb_phy.c |4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers
Tegra USB host driver is using port instance number,
to handle some of the hardware issues on SOC e.g. reset PORT0
twice etc. As instance number based handling looks ugly,
making use of information passed through DT for achieving this.
Signed-off-by: Venu Byravarasu
---
drivers/usb/host/ehci
As Tegra USB host driver is using instance number for resetting
PORT0 twice, adding a new DT property for handling this.
Signed-off-by: Venu Byravarasu
---
.../bindings/usb/nvidia,tegra20-ehci.txt |2 ++
arch/arm/boot/dts/tegra20.dtsi |1 +
2 files changed
reset the port second time.
Venu Byravarasu (2):
arm: tegra: Add new DT property to USB node.
usb: host: tegra: Resetting PORT0 based on information received via
DT.
.../bindings/usb/nvidia,tegra20-ehci.txt |2 ++
arch/arm/boot/dts/tegra20.dtsi |1
> -Original Message-
> From: Venu Byravarasu
> Sent: Monday, October 22, 2012 4:04 PM
> To: 'ba...@ti.com'
> Cc: st...@rowland.harvard.edu; gre...@linuxfoundation.org; linux-
> u...@vger.kernel.org; linux-ker...@vger.kernel.org
> Subject: RE: [PATCH v3 rese
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Monday, October 22, 2012 3:46 PM
> To: Venu Byravarasu
> Cc: ba...@ti.com; st...@rowland.harvard.edu;
> gre...@linuxfoundation.org; linux-usb@vger.kernel.org; linux-
> ker...@vger.kernel.org
>
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Monday, October 22, 2012 3:33 PM
> To: Venu Byravarasu
> Cc: ba...@ti.com; st...@rowland.harvard.edu;
> gre...@linuxfoundation.org; linux-usb@vger.kernel.org; linux-
> ker...@vger.kernel.org
>
> -Original Message-
> From: Felipe Balbi [mailto:ba...@ti.com]
> Sent: Friday, October 19, 2012 9:06 PM
> To: Venu Byravarasu
> Cc: st...@rowland.harvard.edu; gre...@linuxfoundation.org;
> ba...@ti.com; linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org
> S
.
Signed-off-by: Venu Byravarasu
---
delta from v3 resend:
For unknown reasons, email-id in signed-off-by got corrupted.
Hence re-sending the patch, after fixing it.
delta from v3:
Rebased the v3 changes on top of xceiv branch.
delta from v2:
Added an if condition to check for device_node to be not
.
Signed-off-by: Venu Byravarasu
---
delta from v3:
Rebased the v3 changes on top of xceiv branch.
delta from v2:
Added an if condition to check for device_node to be not NULL,
before dereferencing it.
---
drivers/usb/host/ehci-tegra.c | 20 +-
drivers/usb/phy/Makefile
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