redonkable/alistair23-linux
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[media] marvell-ccic: switch to resource managed allocation and request

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This patch switchs to resource managed allocation and request in mmp-driver.
It can remove free resource operations.

Signed-off-by: Albert Wang <twang13@marvell.com>
Signed-off-by: Libin Yang <lbyang@marvell.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Libin Yang 2013-07-03 01:56:04 -03:00 committed by Mauro Carvalho Chehab
parent 0a0b3fb42f
commit 578e99d6cd
1 changed files with 22 additions and 38 deletions
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60
drivers/media/platform/marvell-ccic/mmp-driver.c
View file

@ -367,7 +367,7 @@ static int mmpcam_probe(struct platform_device *pdev)
if (!pdata)
return -ENODEV;
cam = kzalloc(sizeof(*cam), GFP_KERNEL);
cam = devm_kzalloc(&pdev->dev, sizeof(*cam), GFP_KERNEL);
if (cam == NULL)
return -ENOMEM;
cam->pdev = pdev;
@ -398,15 +398,11 @@ static int mmpcam_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "no iomem resource!\n");
ret = -ENODEV;
goto out_free;
}
mcam->regs = ioremap(res->start, resource_size(res));
if (mcam->regs == NULL) {
dev_err(&pdev->dev, "MMIO ioremap fail\n");
ret = -ENODEV;
goto out_free;
return -ENODEV;
}
mcam->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mcam->regs))
return PTR_ERR(mcam->regs);
mcam->regs_size = resource_size(res);
/*
* Power/clock memory is elsewhere; get it too. Perhaps this
@ -415,40 +411,37 @@ static int mmpcam_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (res == NULL) {
dev_err(&pdev->dev, "no power resource!\n");
ret = -ENODEV;
goto out_unmap1;
}
cam->power_regs = ioremap(res->start, resource_size(res));
if (cam->power_regs == NULL) {
dev_err(&pdev->dev, "power MMIO ioremap fail\n");
ret = -ENODEV;
goto out_unmap1;
return -ENODEV;
}
cam->power_regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(cam->power_regs))
return PTR_ERR(cam->power_regs);
/*
* Find the i2c adapter. This assumes, of course, that the
* i2c bus is already up and functioning.
*/
mcam->i2c_adapter = platform_get_drvdata(pdata->i2c_device);
if (mcam->i2c_adapter == NULL) {
ret = -ENODEV;
dev_err(&pdev->dev, "No i2c adapter\n");
goto out_unmap2;
return -ENODEV;
}
/*
* Sensor GPIO pins.
*/
ret = gpio_request(pdata->sensor_power_gpio, "cam-power");
ret = devm_gpio_request(&pdev->dev, pdata->sensor_power_gpio,
"cam-power");
if (ret) {
dev_err(&pdev->dev, "Can't get sensor power gpio %d",
pdata->sensor_power_gpio);
goto out_unmap2;
return ret;
}
gpio_direction_output(pdata->sensor_power_gpio, 0);
ret = gpio_request(pdata->sensor_reset_gpio, "cam-reset");
ret = devm_gpio_request(&pdev->dev, pdata->sensor_reset_gpio,
"cam-reset");
if (ret) {
dev_err(&pdev->dev, "Can't get sensor reset gpio %d",
pdata->sensor_reset_gpio);
goto out_gpio;
return ret;
}
gpio_direction_output(pdata->sensor_reset_gpio, 0);
@ -459,10 +452,10 @@ static int mmpcam_probe(struct platform_device *pdev)
*/
ret = mmpcam_power_up(mcam);
if (ret)
goto out_gpio2;
goto out_deinit_clk;
ret = mccic_register(mcam);
if (ret)
goto out_pwdn;
goto out_power_down;
/*
* Finally, set up our IRQ now that the core is ready to
* deal with it.
@ -473,8 +466,8 @@ static int mmpcam_probe(struct platform_device *pdev)
goto out_unregister;
}
cam->irq = res->start;
ret = request_irq(cam->irq, mmpcam_irq, IRQF_SHARED,
"mmp-camera", mcam);
ret = devm_request_irq(&pdev->dev, cam->irq, mmpcam_irq, IRQF_SHARED,
"mmp-camera", mcam);
if (ret == 0) {
mmpcam_add_device(cam);
return 0;
@ -482,19 +475,10 @@ static int mmpcam_probe(struct platform_device *pdev)
out_unregister:
mccic_shutdown(mcam);
out_pwdn:
out_power_down:
mmpcam_power_down(mcam);
out_gpio2:
out_deinit_clk:
mcam_deinit_clk(mcam);
gpio_free(pdata->sensor_reset_gpio);
out_gpio:
gpio_free(pdata->sensor_power_gpio);
out_unmap2:
iounmap(cam->power_regs);
out_unmap1:
iounmap(mcam->regs);
out_free:
kfree(cam);
return ret;
}