linux-kernel - Re: [PATCH v2] media: coda: Convert the driver to DT-only

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Date:   Wed, 2 Dec 2020 12:36:41 +0100
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Fabio Estevam <festevam@...il.com>, p.zabel@...gutronix.de
Cc:     mchehab@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] media: coda: Convert the driver to DT-only

On 02/12/2020 11:35, Fabio Estevam wrote:
> Since 5.10-rc1 i.MX is a devicetree-only platform, so simplify the code
> by removing the unused non-DT support.

You forgot to Cc to linux-media. Please repost so it will end up
in the media patchwork!

Regards,

	Hans

> 
> Signed-off-by: Fabio Estevam <festevam@...il.com>
> ---
> Changes since v1:
> - Drop include/linux/platform_data/media/coda.h and pdata - Hans
> 
>  drivers/media/platform/coda/coda-common.c | 27 ++---------------------
>  include/linux/platform_data/media/coda.h  | 14 ------------
>  2 files changed, 2 insertions(+), 39 deletions(-)
>  delete mode 100644 include/linux/platform_data/media/coda.h
> 
> diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
> index d30eafea701d..995e95272e51 100644
> --- a/drivers/media/platform/coda/coda-common.c
> +++ b/drivers/media/platform/coda/coda-common.c
> @@ -25,7 +25,6 @@
>  #include <linux/slab.h>
>  #include <linux/videodev2.h>
>  #include <linux/of.h>
> -#include <linux/platform_data/media/coda.h>
>  #include <linux/ratelimit.h>
>  #include <linux/reset.h>
>  
> @@ -3102,13 +3101,6 @@ static const struct coda_devtype coda_devdata[] = {
>  	},
>  };
>  
> -static const struct platform_device_id coda_platform_ids[] = {
> -	{ .name = "coda-imx27", .driver_data = CODA_IMX27 },
> -	{ /* sentinel */ }
> -};
> -MODULE_DEVICE_TABLE(platform, coda_platform_ids);
> -
> -#ifdef CONFIG_OF
>  static const struct of_device_id coda_dt_ids[] = {
>  	{ .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
>  	{ .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
> @@ -3118,14 +3110,9 @@ static const struct of_device_id coda_dt_ids[] = {
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, coda_dt_ids);
> -#endif
>  
>  static int coda_probe(struct platform_device *pdev)
>  {
> -	const struct of_device_id *of_id =
> -			of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
> -	const struct platform_device_id *pdev_id;
> -	struct coda_platform_data *pdata = pdev->dev.platform_data;
>  	struct device_node *np = pdev->dev.of_node;
>  	struct gen_pool *pool;
>  	struct coda_dev *dev;
> @@ -3135,14 +3122,7 @@ static int coda_probe(struct platform_device *pdev)
>  	if (!dev)
>  		return -ENOMEM;
>  
> -	pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
> -
> -	if (of_id)
> -		dev->devtype = of_id->data;
> -	else if (pdev_id)
> -		dev->devtype = &coda_devdata[pdev_id->driver_data];
> -	else
> -		return -EINVAL;
> +	dev->devtype = of_device_get_match_data(&pdev->dev);
>  
>  	dev->dev = &pdev->dev;
>  	dev->clk_per = devm_clk_get(&pdev->dev, "per");
> @@ -3200,10 +3180,8 @@ static int coda_probe(struct platform_device *pdev)
>  		return ret;
>  	}
>  
> -	/* Get IRAM pool from device tree or platform data */
> +	/* Get IRAM pool from device tree */
>  	pool = of_gen_pool_get(np, "iram", 0);
> -	if (!pool && pdata)
> -		pool = gen_pool_get(pdata->iram_dev, NULL);
>  	if (!pool) {
>  		dev_err(&pdev->dev, "iram pool not available\n");
>  		return -ENOMEM;
> @@ -3342,7 +3320,6 @@ static struct platform_driver coda_driver = {
>  		.of_match_table = of_match_ptr(coda_dt_ids),
>  		.pm	= &coda_pm_ops,
>  	},
> -	.id_table = coda_platform_ids,
>  };
>  
>  module_platform_driver(coda_driver);
> diff --git a/include/linux/platform_data/media/coda.h b/include/linux/platform_data/media/coda.h
> deleted file mode 100644
> index 293b61b60c9d..000000000000
> --- a/include/linux/platform_data/media/coda.h
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0-or-later */
> -/*
> - * Copyright (C) 2013 Philipp Zabel, Pengutronix
> - */
> -#ifndef PLATFORM_CODA_H
> -#define PLATFORM_CODA_H
> -
> -struct device;
> -
> -struct coda_platform_data {
> -	struct device *iram_dev;
> -};
> -
> -#endif
>