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iio: adc: at91-sama5d2_adc: Use devm_platform_get_and_ioremap_resource() 

Make use of devm_platform_get_and_ioremap_resource() provided by
driver core platform instead of duplicated analogue.

Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Link: https://lore.kernel.org/r/20200918082837.32610-1-bobo.shaobowang@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Wang ShaoBo 2020-09-18 16:28:37 +08:00 committed by Jonathan Cameron
parent 4c6e3dbc6b
commit cbc4ca3525
1 changed files with 3 additions and 7 deletions
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10
drivers/iio/adc/at91-sama5d2_adc.c
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@ -1764,17 +1764,13 @@ static int at91_adc_probe(struct platform_device *pdev)
mutex_init(&st->lock);
INIT_WORK(&st->touch_st.workq, at91_adc_workq_handler);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;
st->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(st->base))
return PTR_ERR(st->base);
/* if we plan to use DMA, we need the physical address of the regs */
st->dma_st.phys_addr = res->start;
st->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(st->base))
return PTR_ERR(st->base);
st->irq = platform_get_irq(pdev, 0);
if (st->irq <= 0) {
if (!st->irq)