[v6,5/6] arm64: dts: meson: a1: Enable USB2 PHY
diff mbox series

Message ID 1579220504-110067-6-git-send-email-hanjie.lin@amlogic.com
State New
Headers show
Series
  • arm64: meson: Add support for USB on Amlogic A1
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Commit Message

Hanjie Lin Jan. 17, 2020, 12:21 a.m. UTC
Enable USB2 PHY for Meson A1 SoC.

Signed-off-by: Yue Wang <yue.wang@amlogic.com>
Signed-off-by: Hanjie Lin <hanjie.lin@amlogic.com>
---
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

Comments

Martin Blumenstingl Jan. 18, 2020, 10:05 p.m. UTC | #1
Hi Hanjie,

On Fri, Jan 17, 2020 at 1:22 AM Hanjie Lin <hanjie.lin@amlogic.com> wrote:
>
> Enable USB2 PHY for Meson A1 SoC.
>
> Signed-off-by: Yue Wang <yue.wang@amlogic.com>
> Signed-off-by: Hanjie Lin <hanjie.lin@amlogic.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
personally I would squash this with patch 6/6 because it's only useful
together with patch 6/6
on the other hand: it's not worth sending a v7 just for this

> @@ -100,6 +101,18 @@
>                                 #power-domain-cells = <1>;
>                                 status = "okay";
>                         };
> +
> +                       usb2_phy1: phy@40000 {
> +                               status = "okay";
we typically use one of the following patterns:
- status = "disabled" in SoC.dts
- status = "okay" in board.dts whenever the peripheral should be used
(example: I2C, USB, ...)
OR
- no status property if the peripheral is mandatory on all boards (for
example: clock controller, ...)

so for consistency with other Amlogic .dts I would either drop the
status property or set it to disabled (and enable it in
meson-a1-ad401.dts)
same applies to patch 6/6


Martin
Hanjie Lin Jan. 19, 2020, 3:01 a.m. UTC | #2
On 2020/1/19 6:05, Martin Blumenstingl wrote:
> Hi Hanjie,
> 
> On Fri, Jan 17, 2020 at 1:22 AM Hanjie Lin <hanjie.lin@amlogic.com> wrote:
>>
>> Enable USB2 PHY for Meson A1 SoC.
>>
>> Signed-off-by: Yue Wang <yue.wang@amlogic.com>
>> Signed-off-by: Hanjie Lin <hanjie.lin@amlogic.com>
>> ---
>>  arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 13 +++++++++++++
>>  1 file changed, 13 insertions(+)
> personally I would squash this with patch 6/6 because it's only useful
> together with patch 6/6
> on the other hand: it's not worth sending a v7 just for this
> 
>> @@ -100,6 +101,18 @@
>>                                 #power-domain-cells = <1>;
>>                                 status = "okay";
>>                         };
>> +
>> +                       usb2_phy1: phy@40000 {
>> +                               status = "okay";
> we typically use one of the following patterns:
> - status = "disabled" in SoC.dts
> - status = "okay" in board.dts whenever the peripheral should be used
> (example: I2C, USB, ...)
> OR
> - no status property if the peripheral is mandatory on all boards (for
> example: clock controller, ...)
> 
> so for consistency with other Amlogic .dts I would either drop the
> status property or set it to disabled (and enable it in
> meson-a1-ad401.dts)
> same applies to patch 6/6
> 
> 
> Martin
> 
> .
> 

Hi Martin,

Of course, it will be more reasonable.

I have a bindings issue need to fix too, so I will do these together in v7.

Thanks,
Hanjie

Patch
diff mbox series

diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index 6fdc0dd..fb0ba85 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -6,6 +6,7 @@ 
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/meson-a1-power.h>
+#include <dt-bindings/reset/amlogic,meson-a1-reset.h>
 
 / {
 	compatible = "amlogic,a1";
@@ -100,6 +101,18 @@ 
 				#power-domain-cells = <1>;
 				status = "okay";
 			};
+
+			usb2_phy1: phy@40000 {
+				status = "okay";
+				compatible = "amlogic,a1-usb2-phy";
+				clocks = <&clkc_periphs CLKID_XTAL_USB_PHY>;
+				clock-names = "xtal";
+				reg = <0x0 0x40000 0x0 0x2000>;
+				resets = <&reset RESET_USBPHY>;
+				reset-names = "phy";
+				#phy-cells = <0>;
+				power-domains = <&pwrc PWRC_USB_ID>;
+			};
 		};
 
 		gic: interrupt-controller@ff901000 {