diff mbox

[v4,4/4] arm64: dts: meson-axg: add clock DT info for Meson AXG SoC

Message ID 20171201012452.27086-5-yixun.lan@amlogic.com (mailing list archive)
State Changes Requested
Headers show

Commit Message

Yixun Lan Dec. 1, 2017, 1:24 a.m. UTC
From: Qiufang Dai <qiufang.dai@amlogic.com>

Try to add Hiubus DT info, and also enable clock DT info
for the Amlogic's Meson-AXG SoC.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Comments

Kevin Hilman Dec. 7, 2017, 12:50 a.m. UTC | #1
Yixun Lan <yixun.lan@amlogic.com> writes:

> From: Qiufang Dai <qiufang.dai@amlogic.com>
>
> Try to add Hiubus DT info, and also enable clock DT info
> for the Amlogic's Meson-AXG SoC.
>
> Acked-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com>
> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> index b932a784b02a..36a2e98338a8 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> @@ -7,6 +7,7 @@
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/axg-clkc.h>

This #include will cause an unnessary dependency from the amlogic tree
to the clock tree even though this patch is not currently using any of
the #defines from that header.  It will simplify the dependencies if you
drop this #include from this patch.

In my comment on the cover letter, I suggested adding a patch that also
switches the UART over to the new clock provider.  That is the patch
that should add this #include, since it will actually need #defines from
the header.

Doing it in that order means that we could merge this patch
independently of the clock driver, and then merge the UART switch-over
patch only after the driver (and headers) are merged.

Kevin
Yixun Lan Dec. 8, 2017, 2:50 p.m. UTC | #2
On 12/07/17 08:50, Kevin Hilman wrote:
> Yixun Lan <yixun.lan@amlogic.com> writes:
> 
>> From: Qiufang Dai <qiufang.dai@amlogic.com>
>>
>> Try to add Hiubus DT info, and also enable clock DT info
>> for the Amlogic's Meson-AXG SoC.
>>
>> Acked-by: Rob Herring <robh@kernel.org>
>> Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com>
>> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
>> ---
>>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 15 +++++++++++++++
>>  1 file changed, 15 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>> index b932a784b02a..36a2e98338a8 100644
>> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
>> @@ -7,6 +7,7 @@
>>  #include <dt-bindings/gpio/gpio.h>
>>  #include <dt-bindings/interrupt-controller/irq.h>
>>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +#include <dt-bindings/clock/axg-clkc.h>
> 
> This #include will cause an unnessary dependency from the amlogic tree
> to the clock tree even though this patch is not currently using any of
> the #defines from that header.  It will simplify the dependencies if you
> drop this #include from this patch.
> 
> In my comment on the cover letter, I suggested adding a patch that also
> switches the UART over to the new clock provider.  That is the patch
> that should add this #include, since it will actually need #defines from
> the header.
> 
ok, make sense
> Doing it in that order means that we could merge this patch
> independently of the clock driver, and then merge the UART switch-over
> patch only after the driver (and headers) are merged.
I was planing to add UART DT part as separately patches (including the
UARt's pinctrl part information)

but as follow your suggestion, I could split the UART's clock DT info
into separate patch, and send along with this series.

> 
> Kevin
> 
> .
>
diff mbox

Patch

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index b932a784b02a..36a2e98338a8 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -7,6 +7,7 @@ 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/axg-clkc.h>
 
 / {
 	compatible = "amlogic,meson-axg";
@@ -148,6 +149,20 @@ 
 			#address-cells = <0>;
 		};
 
+		hiubus: hiubus@ff63c000 {
+			compatible = "simple-bus";
+			reg = <0x0 0xff63c000 0x0 0x1c00>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges = <0x0 0x0 0x0 0xff63c000 0x0 0x1c00>;
+
+			clkc: clock-controller@0 {
+				compatible = "amlogic,axg-clkc";
+				#clock-cells = <1>;
+				reg = <0x0 0x0 0x0 0x320>;
+			};
+		};
+
 		mailbox: mailbox@ff63dc00 {
 			compatible = "amlogic,meson-gx-mhu", "amlogic,meson-gxbb-mhu";
 			reg = <0 0xff63dc00 0 0x400>;