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

[Joel Stanley]

On Tue, 25 Feb 2020 at 19:56, Jae Hyun Yoo <jae.hyun.yoo at 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 at linux.intel.com>

Reviewed-by: Joel Stanley <joel at jms.id.au>

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

> ---
>  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
>