diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2014-02-12 06:31:49 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-03-19 09:58:13 +0100 |
| commit | 924ff918ad8c7e5665b05d9c7b258623c88d65c5 (patch) | |
| tree | 71dec6b0035696df513080423733b40cd4404c08 /drivers/mfd/ti_am335x_tscadc.c | |
| parent | mfd: da9052: Fix volatile register definition ommissions (diff) | |
| download | linux-924ff918ad8c7e5665b05d9c7b258623c88d65c5.tar.xz linux-924ff918ad8c7e5665b05d9c7b258623c88d65c5.zip | |
mfd: ti_am335x_tscadc: Use devm_ioremap_resource()
Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/ti_am335x_tscadc.c')
| -rw-r--r-- | drivers/mfd/ti_am335x_tscadc.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 6000c49a352c..dd4bf5816221 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -183,12 +183,6 @@ static int ti_tscadc_probe(struct platform_device *pdev) return -EINVAL; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no memory resource defined.\n"); - return -EINVAL; - } - /* Allocate memory for device */ tscadc = devm_kzalloc(&pdev->dev, sizeof(struct ti_tscadc_dev), GFP_KERNEL); @@ -205,19 +199,10 @@ static int ti_tscadc_probe(struct platform_device *pdev) } else tscadc->irq = err; - res = devm_request_mem_region(&pdev->dev, - res->start, resource_size(res), pdev->name); - if (!res) { - dev_err(&pdev->dev, "failed to reserve registers.\n"); - return -EBUSY; - } - - tscadc->tscadc_base = devm_ioremap(&pdev->dev, - res->start, resource_size(res)); - if (!tscadc->tscadc_base) { - dev_err(&pdev->dev, "failed to map registers.\n"); - return -ENOMEM; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + tscadc->tscadc_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(tscadc->tscadc_base)) + return PTR_ERR(tscadc->tscadc_base); tscadc->regmap_tscadc = devm_regmap_init_mmio(&pdev->dev, tscadc->tscadc_base, &tscadc_regmap_config); |