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iio: dac: adi-axi-dac: Make use of a local struct device variable

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Use a local struct device variable to improve readability in some code
paths during probe. While at it, fix some line breaks not properly
aligned to the open parenthesis.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sá 2025-12-22 13:48:01 +00:00 committed by Jonathan Cameron
parent d801133551
commit fe1846f61a
1 changed files with 23 additions and 24 deletions
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47
drivers/iio/dac/adi-axi-dac.c
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@ -885,34 +885,35 @@ static const struct regmap_config axi_dac_regmap_config = {
static int axi_dac_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct axi_dac_state *st;
void __iomem *base;
unsigned int ver;
struct clk *clk;
int ret;
st = devm_kzalloc(&pdev->dev, sizeof(*st), GFP_KERNEL);
st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
if (!st)
return -ENOMEM;
st->info = device_get_match_data(&pdev->dev);
st->info = device_get_match_data(dev);
if (!st->info)
return -ENODEV;
clk = devm_clk_get_enabled(&pdev->dev, "s_axi_aclk");
clk = devm_clk_get_enabled(dev, "s_axi_aclk");
if (IS_ERR(clk)) {
/* Backward compat., old fdt versions without clock-names. */
clk = devm_clk_get_enabled(&pdev->dev, NULL);
clk = devm_clk_get_enabled(dev, NULL);
if (IS_ERR(clk))
return dev_err_probe(&pdev->dev, PTR_ERR(clk),
"failed to get clock\n");
return dev_err_probe(dev, PTR_ERR(clk),
"failed to get clock\n");
}
if (st->info->has_dac_clk) {
struct clk *dac_clk;
dac_clk = devm_clk_get_enabled(&pdev->dev, "dac_clk");
dac_clk = devm_clk_get_enabled(dev, "dac_clk");
if (IS_ERR(dac_clk))
return dev_err_probe(&pdev->dev, PTR_ERR(dac_clk),
return dev_err_probe(dev, PTR_ERR(dac_clk),
"failed to get dac_clk clock\n");
/* We only care about the streaming mode rate */
@ -923,11 +924,10 @@ static int axi_dac_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
st->dev = &pdev->dev;
st->regmap = devm_regmap_init_mmio(&pdev->dev, base,
&axi_dac_regmap_config);
st->dev = dev;
st->regmap = devm_regmap_init_mmio(dev, base, &axi_dac_regmap_config);
if (IS_ERR(st->regmap))
return dev_err_probe(&pdev->dev, PTR_ERR(st->regmap),
return dev_err_probe(dev, PTR_ERR(st->regmap),
"failed to init register map\n");
/*
@ -944,7 +944,7 @@ static int axi_dac_probe(struct platform_device *pdev)
if (ADI_AXI_PCORE_VER_MAJOR(ver) !=
ADI_AXI_PCORE_VER_MAJOR(st->info->version)) {
dev_err(&pdev->dev,
dev_err(dev,
"Major version mismatch. Expected %d.%.2d.%c, Reported %d.%.2d.%c\n",
ADI_AXI_PCORE_VER_MAJOR(st->info->version),
ADI_AXI_PCORE_VER_MINOR(st->info->version),
@ -975,34 +975,33 @@ static int axi_dac_probe(struct platform_device *pdev)
mutex_init(&st->lock);
ret = devm_iio_backend_register(&pdev->dev, st->info->backend_info, st);
ret = devm_iio_backend_register(dev, st->info->backend_info, st);
if (ret)
return dev_err_probe(&pdev->dev, ret,
return dev_err_probe(dev, ret,
"failed to register iio backend\n");
device_for_each_child_node_scoped(&pdev->dev, child) {
device_for_each_child_node_scoped(dev, child) {
int val;
if (!st->info->has_child_nodes)
return dev_err_probe(&pdev->dev, -EINVAL,
return dev_err_probe(dev, -EINVAL,
"invalid fdt axi-dac compatible.");
/* Processing only reg 0 node */
ret = fwnode_property_read_u32(child, "reg", &val);
if (ret)
return dev_err_probe(&pdev->dev, ret,
"invalid reg property.");
return dev_err_probe(dev, ret, "invalid reg property.");
if (val != 0)
return dev_err_probe(&pdev->dev, -EINVAL,
"invalid node address.");
return dev_err_probe(dev, -EINVAL,
"invalid node address.");
ret = axi_dac_create_platform_device(st, child);
if (ret)
return dev_err_probe(&pdev->dev, -EINVAL,
"cannot create device.");
return dev_err_probe(dev, -EINVAL,
"cannot create device.");
}
dev_info(&pdev->dev, "AXI DAC IP core (%d.%.2d.%c) probed\n",
dev_info(dev, "AXI DAC IP core (%d.%.2d.%c) probed\n",
ADI_AXI_PCORE_VER_MAJOR(ver),
ADI_AXI_PCORE_VER_MINOR(ver),
ADI_AXI_PCORE_VER_PATCH(ver));