linux-kernel - Re: [DO NOT MERGE PATCH 2/2] arm64: dts: ti: Add common1 register space for AM62x and AM65x SoCs

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Date: Tue, 16 Jan 2024 14:48:53 +0530
From: Devarsh Thakkar <devarsht@...com>
To: Conor Dooley <conor@...nel.org>
CC: <jyri.sarha@....fi>, <tomi.valkeinen@...asonboard.com>,
        <airlied@...il.com>, <daniel@...ll.ch>,
        <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
        <tzimmermann@...e.de>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <praneeth@...com>, <nm@...com>,
        <vigneshr@...com>, <a-bhatia1@...com>, <j-luthra@...com>,
        <kristo@...nel.org>
Subject: Re: [DO NOT MERGE PATCH 2/2] arm64: dts: ti: Add common1 register
 space for AM62x and AM65x SoCs

Hi Conor,

Thanks for the review.

On 15/01/24 21:44, Conor Dooley wrote:
> On Mon, Jan 15, 2024 at 06:27:16PM +0530, Devarsh Thakkar wrote:
>> This adds common1 register space for AM62x and AM65x SoC's which are using
>> TI's Keystone display hardware and supporting it as described in
>> Documentation/devicetree/bindings/display/ti/ti,am65x-dss.yaml.
>>
>> This region is documented in respective Technical Reference Manuals [1].
>>
>> [1]:
>> AM62x TRM:
>> https://www.ti.com/lit/pdf/spruiv7 (Section 14.8.9.1 DSS Registers)
>>
>> AM65x TRM:
>> https://www.ti.com/lit/pdf/spruid7 (Section 12.6.5 DSS Registers)
>>
>> Signed-off-by: Devarsh Thakkar <devarsht@...com>
>> ---
> 
> "[DO NOT MERGE PATCH 2/2]" but no rationale here as to why this cannot
> be merged? What's the problem with it?
> 

No problem as such from my point of view, but this is the process I follow
since maintainer trees for device-tree file and bindings are different. I
generally mark a [DO NOT MERGE] tag for device-tree file patches until binding
patch gets merged so that the device-tree patches don't get applied by mistake
if binding patch has some pending comments.

Once binding patch gets merged, I re-send the device-tree file patches again
to respective list.

Regards
Devarsh

> Cheers,
> Conor.
> 
>>  arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 5 +++--
>>  arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 5 +++--
>>  2 files changed, 6 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
>> index 464b7565d085..298bf8d5de8c 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
>> @@ -779,9 +779,10 @@ dss: dss@...00000 {
>>  		      <0x00 0x30207000 0x00 0x1000>, /* ovr1 */
>>  		      <0x00 0x30208000 0x00 0x1000>, /* ovr2 */
>>  		      <0x00 0x3020a000 0x00 0x1000>, /* vp1: Used for OLDI */
>> -		      <0x00 0x3020b000 0x00 0x1000>; /* vp2: Used as DPI Out */
>> +		      <0x00 0x3020b000 0x00 0x1000>, /* vp2: Used as DPI Out */
>> +		      <0x00 0x30201000 0x00 0x1000>; /* common1 */
>>  		reg-names = "common", "vidl1", "vid",
>> -			    "ovr1", "ovr2", "vp1", "vp2";
>> +			    "ovr1", "ovr2", "vp1", "vp2", "common1";
>>  		power-domains = <&k3_pds 186 TI_SCI_PD_EXCLUSIVE>;
>>  		clocks = <&k3_clks 186 6>,
>>  			 <&dss_vp1_clk>,
>> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> index fcea54465636..5b2d4365b911 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> @@ -1019,9 +1019,10 @@ dss: dss@...0000 {
>>  		      <0x0 0x04a07000 0x0 0x1000>, /* ovr1 */
>>  		      <0x0 0x04a08000 0x0 0x1000>, /* ovr2 */
>>  		      <0x0 0x04a0a000 0x0 0x1000>, /* vp1 */
>> -		      <0x0 0x04a0b000 0x0 0x1000>; /* vp2 */
>> +		      <0x0 0x04a0b000 0x0 0x1000>, /* vp2 */
>> +		      <0x0 0x04a01000 0x0 0x1000>; /* common1 */
>>  		reg-names = "common", "vidl1", "vid",
>> -			"ovr1", "ovr2", "vp1", "vp2";
>> +			"ovr1", "ovr2", "vp1", "vp2", "common1";
>>  
>>  		ti,am65x-oldi-io-ctrl = <&dss_oldi_io_ctrl>;
>>  
>> -- 
>> 2.34.1
>>