[U-Boot] [PATCH v7 04/10] usb: phy: Add STi USB2 PHY

Marek Vasut marex at denx.de
Mon Jun 5 11:21:40 UTC 2017


On 06/05/2017 08:58 AM, Patrice CHOTARD wrote:
> Hi Marek
> 
> On 06/03/2017 08:08 AM, Marek Vasut wrote:
>> On 06/01/2017 02:05 PM, patrice.chotard at st.com wrote:
>>> From: Patrice Chotard <patrice.chotard at st.com>
>>>
>>> This is the generic phy driver for the picoPHY ports
>>> used by USB2/1.1 controllers. It is found on STiH407 SoC
>>> family from STMicroelectronics.
>>>
>>> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
>>> Reviewed-by: Marek Vasut <marex at denx.de>
>>> ---
>>> v7:	_ replace fdtdec_parse_phandle_with_args() by dev_read_phandle_with_args()
>>> 	_ replace uclass_get_device_by_of_offset() by uclass_get_device_by_ofnode()
>>>
>>
>> You should drop RB if you do significant changes.
>>
>>>
>>> v5:	_ add Reviewed-by: Marek Vasut <marex at denx.de>
>>>
>>> v4:	_ update to use the new PHY uclass currently available on dm-next branch
>>>
>>> v3: 	_ convert driver to USB PHY uclass
>>>
>>> v2:	_ replace bitfield_replace() by clrsetbits_le32()
>>>
>>>   doc/device-tree-bindings/phy/phy-stih407-usb.txt |  24 +++
>>>   drivers/phy/Kconfig                              |   8 +
>>>   drivers/phy/Makefile                             |   1 +
>>>   drivers/phy/sti_usb_phy.c                        | 181 +++++++++++++++++++++++
>>>   4 files changed, 214 insertions(+)
>>>   create mode 100644 doc/device-tree-bindings/phy/phy-stih407-usb.txt
>>>   create mode 100644 drivers/phy/sti_usb_phy.c
>>>
>>> diff --git a/doc/device-tree-bindings/phy/phy-stih407-usb.txt b/doc/device-tree-bindings/phy/phy-stih407-usb.txt
>>> new file mode 100644
>>> index 0000000..de6a706
>>> --- /dev/null
>>> +++ b/doc/device-tree-bindings/phy/phy-stih407-usb.txt
>>> @@ -0,0 +1,24 @@
>>> +ST STiH407 USB PHY controller
>>> +
>>> +This file documents the dt bindings for the usb picoPHY driver which is the PHY for both USB2 and USB3
>>> +host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC family from STMicroelectronics.
>>> +
>>> +Required properties:
>>> +- compatible		: should be "st,stih407-usb2-phy"
>>> +- st,syscfg		: phandle of sysconfig bank plus integer array containing phyparam and phyctrl register offsets
>>> +- resets		: list of phandle and reset specifier pairs. There should be two entries, one
>>> +			  for the whole phy and one for the port
>>> +- reset-names		: list of reset signal names. Should be "global" and "port"
>>> +See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
>>> +See: Documentation/devicetree/bindings/reset/reset.txt
>>> +
>>> +Example:
>>> +
>>> +usb2_picophy0: usbpicophy at f8 {
>>
>> This example uses address, but has no reg property ?
> 
> Agree, but following advices from Arnd Bergman about not mixing address 
> space and sysconfig registers int the reg property, the reg property was 
> removed.
> 
> For more details, see https://patches.linaro.org/patch/44081/

Then you should remove it from usbpicophy at f8 too .

[...]

-- 
Best regards,
Marek Vasut


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