Re: [PATCH -next] media: aspeed: add AST2600 support

From: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
To: Joel Stanley <joel@jms.id.au>
Cc: linux-aspeed <linux-aspeed@lists.ozlabs.org>,
	Andrew Jeffery <andrew@aj.id.au>,
	OpenBMC Maillist <openbmc@lists.ozlabs.org>,
	Eddie James <eajames@linux.ibm.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-media@vger.kernel.org
Subject: Re: [PATCH -next] media: aspeed: add AST2600 support
Date: Tue, 25 Feb 2020 16:09:57 -0800	[thread overview]
Message-ID: <b13f037d-ac0c-a9e4-d938-da93a6099af4@linux.intel.com> (raw)
In-Reply-To: <CACPK8XeiH1iLQbmP+3yJninJtK7rQv=HMVnHzqjPH04V4xW+zg@mail.gmail.com>

Hi Joel,

On 2/25/2020 3:52 PM, Joel Stanley wrote:
> On Tue, 25 Feb 2020 at 19:56, Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> wrote:
>>
>> Video engine in AST2600 has the exactly same register set with
>> AST2500 except VR084 register which provides more precise JPEG
>> size read back. This commit adds support for the difference and
>> adds 'aspeed,ast2600-video-engine' compatible OF string.
>>
>> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
> 
> Reviewed-by: Joel Stanley <joel@jms.id.au>

Thanks for your review!

> Did you post an update to the device tree bindings too?

Device tree bindings and aspeed-g6.dtsi change were merged in
'next-20200225' tag already.

Thanks,

Jae

>> ---
>>   drivers/media/platform/aspeed-video.c | 15 +++++++++++----
>>   1 file changed, 11 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
>> index 47444a336ebb..7d98db1d9b52 100644
>> --- a/drivers/media/platform/aspeed-video.c
>> +++ b/drivers/media/platform/aspeed-video.c
>> @@ -1,6 +1,6 @@
>>   // SPDX-License-Identifier: GPL-2.0-or-later
>>   // Copyright 2020 IBM Corp.
>> -// Copyright (c) 2019 Intel Corporation
>> +// Copyright (c) 2019-2020 Intel Corporation
>>
>>   #include <linux/atomic.h>
>>   #include <linux/bitfield.h>
>> @@ -132,7 +132,8 @@
>>   #define  VE_COMP_CTRL_HQ_DCT_CHR       GENMASK(26, 22)
>>   #define  VE_COMP_CTRL_HQ_DCT_LUM       GENMASK(31, 27)
>>
>> -#define VE_OFFSET_COMP_STREAM          0x078
>> +#define AST2400_VE_COMP_SIZE_READ_BACK 0x078
>> +#define AST2600_VE_COMP_SIZE_READ_BACK 0x084
>>
>>   #define VE_SRC_LR_EDGE_DET             0x090
>>   #define  VE_SRC_LR_EDGE_DET_LEFT       GENMASK(11, 0)
>> @@ -252,12 +253,17 @@ struct aspeed_video_config {
>>
>>   static const struct aspeed_video_config ast2400_config = {
>>          .jpeg_mode = AST2400_VE_SEQ_CTRL_JPEG_MODE,
>> -       .comp_size_read = VE_OFFSET_COMP_STREAM,
>> +       .comp_size_read = AST2400_VE_COMP_SIZE_READ_BACK,
>>   };
>>
>>   static const struct aspeed_video_config ast2500_config = {
>>          .jpeg_mode = AST2500_VE_SEQ_CTRL_JPEG_MODE,
>> -       .comp_size_read = VE_OFFSET_COMP_STREAM,
>> +       .comp_size_read = AST2400_VE_COMP_SIZE_READ_BACK,
>> +};
>> +
>> +static const struct aspeed_video_config ast2600_config = {
>> +       .jpeg_mode = AST2500_VE_SEQ_CTRL_JPEG_MODE,
>> +       .comp_size_read = AST2600_VE_COMP_SIZE_READ_BACK,
>>   };
>>
>>   static const u32 aspeed_video_jpeg_header[ASPEED_VIDEO_JPEG_HEADER_SIZE] = {
>> @@ -1673,6 +1679,7 @@ static int aspeed_video_init(struct aspeed_video *video)
>>   static const struct of_device_id aspeed_video_of_match[] = {
>>          { .compatible = "aspeed,ast2400-video-engine", .data = &ast2400_config },
>>          { .compatible = "aspeed,ast2500-video-engine", .data = &ast2500_config },
>> +       { .compatible = "aspeed,ast2600-video-engine", .data = &ast2600_config },
>>          {}
>>   };
>>   MODULE_DEVICE_TABLE(of, aspeed_video_of_match);
>> --
>> 2.17.1
>>