[PATCH v3 1/6] iio: adc: meson_saradc: Don't attach managed resource to IIO device object

From: Andy Shevchenko
Date: Fri Jun 03 2022 - 06:00:21 EST


It feels wrong and actually inconsistent to attach managed resources
to the IIO device object, which is child of the physical device object.
The rest of the ->probe() calls do that against physical device.

Resolve this by reassigning managed resources to the physical device object.

Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
Suggested-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
v3: new fix-patch
drivers/iio/adc/meson_saradc.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 62cc6fb0ef85..4fe6b997cd03 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -650,11 +650,11 @@ static int meson_sar_adc_clk_init(struct iio_dev *indio_dev,
void __iomem *base)
{
struct meson_sar_adc_priv *priv = iio_priv(indio_dev);
+ struct device *dev = indio_dev->dev.parent;
struct clk_init_data init;
const char *clk_parents[1];

- init.name = devm_kasprintf(&indio_dev->dev, GFP_KERNEL, "%s#adc_div",
- dev_name(indio_dev->dev.parent));
+ init.name = devm_kasprintf(dev, GFP_KERNEL, "%s#adc_div", dev_name(dev));
if (!init.name)
return -ENOMEM;

@@ -670,13 +670,11 @@ static int meson_sar_adc_clk_init(struct iio_dev *indio_dev,
priv->clk_div.hw.init = &init;
priv->clk_div.flags = 0;

- priv->adc_div_clk = devm_clk_register(&indio_dev->dev,
- &priv->clk_div.hw);
+ priv->adc_div_clk = devm_clk_register(dev, &priv->clk_div.hw);
if (WARN_ON(IS_ERR(priv->adc_div_clk)))
return PTR_ERR(priv->adc_div_clk);

- init.name = devm_kasprintf(&indio_dev->dev, GFP_KERNEL, "%s#adc_en",
- dev_name(indio_dev->dev.parent));
+ init.name = devm_kasprintf(dev, GFP_KERNEL, "%s#adc_en", dev_name(dev));
if (!init.name)
return -ENOMEM;

@@ -690,7 +688,7 @@ static int meson_sar_adc_clk_init(struct iio_dev *indio_dev,
priv->clk_gate.bit_idx = __ffs(MESON_SAR_ADC_REG3_CLK_EN);
priv->clk_gate.hw.init = &init;

- priv->adc_clk = devm_clk_register(&indio_dev->dev, &priv->clk_gate.hw);
+ priv->adc_clk = devm_clk_register(dev, &priv->clk_gate.hw);
if (WARN_ON(IS_ERR(priv->adc_clk)))
return PTR_ERR(priv->adc_clk);

--
2.35.1