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Commit 9e548579 authored by Shawn Guo's avatar Shawn Guo
Browse files

video: mxsfb: use devm_* managed functions 



Use devm_* managed functions to make code a little cleaner.

Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent d260a7af

drivers/video/mxsfb.c

+16 −34
Original line number Diff line number Diff line
@@ -802,23 +802,19 @@ static int mxsfb_probe(struct platform_device *pdev) 
		return -ENODEV;

	}



	if (!request_mem_region(res->start, resource_size(res), pdev->name))

		return -EBUSY;



	fb_info = framebuffer_alloc(sizeof(struct mxsfb_info), &pdev->dev);

	if (!fb_info) {

		dev_err(&pdev->dev, "Failed to allocate fbdev\n");

		ret = -ENOMEM;

		goto error_alloc_info;

		return -ENOMEM;

	}



	host = to_imxfb_host(fb_info);



	host->base = ioremap(res->start, resource_size(res));

	if (!host->base) {

	host->base = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(host->base)) {

		dev_err(&pdev->dev, "ioremap failed\n");

		ret = -ENOMEM;

		goto error_ioremap;

		ret = PTR_ERR(host->base);

		goto fb_release;

	}



	host->pdev = pdev;
@@ -829,13 +825,13 @@ static int mxsfb_probe(struct platform_device *pdev) 
	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);

	if (IS_ERR(pinctrl)) {

		ret = PTR_ERR(pinctrl);

		goto error_getpin;

		goto fb_release;

	}



	host->clk = clk_get(&host->pdev->dev, NULL);

	host->clk = devm_clk_get(&host->pdev->dev, NULL);

	if (IS_ERR(host->clk)) {

		ret = PTR_ERR(host->clk);

		goto error_getclock;

		goto fb_release;

	}



	panel_enable = of_get_named_gpio_flags(pdev->dev.of_node,
@@ -850,14 +846,15 @@ static int mxsfb_probe(struct platform_device *pdev) 
			dev_err(&pdev->dev,

				"failed to request gpio %d: %d\n",

				panel_enable, ret);

			goto error_panel_enable;

			goto fb_release;

		}

	}



	fb_info->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);

	fb_info->pseudo_palette = devm_kzalloc(&pdev->dev, sizeof(u32) * 16,

					       GFP_KERNEL);

	if (!fb_info->pseudo_palette) {

		ret = -ENOMEM;

		goto error_pseudo_pallette;

		goto fb_release;

	}



	INIT_LIST_HEAD(&fb_info->modelist);
@@ -866,7 +863,7 @@ static int mxsfb_probe(struct platform_device *pdev) 


	ret = mxsfb_init_fbinfo(host);

	if (ret != 0)

		goto error_init_fb;

		goto fb_release;



	for (i = 0; i < pdata->mode_count; i++)

		fb_add_videomode(&pdata->mode_list[i], &fb_info->modelist);
@@ -883,7 +880,7 @@ static int mxsfb_probe(struct platform_device *pdev) 
	ret = register_framebuffer(fb_info);

	if (ret != 0) {

		dev_err(&pdev->dev,"Failed to register framebuffer\n");

		goto error_register;

		goto fb_destroy;

	}



	if (!host->enabled) {
@@ -896,22 +893,12 @@ static int mxsfb_probe(struct platform_device *pdev) 


	return 0;



error_register:

fb_destroy:

	if (host->enabled)

		clk_disable_unprepare(host->clk);

	fb_destroy_modelist(&fb_info->modelist);

error_init_fb:

	kfree(fb_info->pseudo_palette);

error_pseudo_pallette:

error_panel_enable:

	clk_put(host->clk);

error_getclock:

error_getpin:

	iounmap(host->base);

error_ioremap:

fb_release:

	framebuffer_release(fb_info);

error_alloc_info:

	release_mem_region(res->start, resource_size(res));



	return ret;

}
@@ -920,19 +907,14 @@ static int mxsfb_remove(struct platform_device *pdev) 
{

	struct fb_info *fb_info = platform_get_drvdata(pdev);

	struct mxsfb_info *host = to_imxfb_host(fb_info);

	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);



	if (host->enabled)

		mxsfb_disable_controller(fb_info);



	unregister_framebuffer(fb_info);

	kfree(fb_info->pseudo_palette);

	mxsfb_free_videomem(host);

	iounmap(host->base);

	clk_put(host->clk);



	framebuffer_release(fb_info);

	release_mem_region(res->start, resource_size(res));



	platform_set_drvdata(pdev, NULL);