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Message-ID: <696b29b8-da60-1ac1-047e-204c6ce1efa7@kernel.org>
Date: Sat, 8 Apr 2017 18:26:20 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Quentin Schulz <quentin.schulz@...e-electrons.com>,
dmitry.torokhov@...il.com, robh+dt@...nel.org,
mark.rutland@....com, maxime.ripard@...e-electrons.com,
wens@...e.org, lee.jones@...aro.org, linux@...linux.org.uk,
knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net
Cc: thomas.petazzoni@...e-electrons.com, linux-input@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
linux-sunxi@...glegroups.com, icenowy@...c.xyz
Subject: Re: [PATCH v4 3/8] iio: adc: sun4i-gpadc-iio: move code used in MFD
probing to new function
On 05/04/17 10:06, Quentin Schulz wrote:
> This moves code used in MFD probing to a new sun4i_gpadc_probe_mfd
> function.
>
> This driver was initially written for A10, A13 and A31 SoCs which
> already had a DT binding for this IP, thus we needed to use an MFD to
> probe the different drivers without changing the DT binding of these
> SoCs.
>
> For SoCs that will require to create a DT binding for this IP, we can
> avoid using an MFD, thus we need two separate functions: one for probing
> via MFD and one for probing without MFD.
>
> This split the code specific to MFD probing in a function separated from
> the driver probe function.
>
> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
> Acked-by: Jonathan Cameron <jic23@...nel.org>
Clearly the series is getting split up and going via different trees
which is fine. I'll drop my Ack and apply it to the togreg branch of iio.git
with a signed-off.
Thanks,
Jonathan
> ---
>
> v3:
> - updated commit log,
>
> added in v2
>
> drivers/iio/adc/sun4i-gpadc-iio.c | 78 ++++++++++++++++++++++-----------------
> 1 file changed, 45 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
> index a8e134f..7cb997a 100644
> --- a/drivers/iio/adc/sun4i-gpadc-iio.c
> +++ b/drivers/iio/adc/sun4i-gpadc-iio.c
> @@ -454,31 +454,16 @@ static int sun4i_irq_init(struct platform_device *pdev, const char *name,
> return 0;
> }
>
> -static int sun4i_gpadc_probe(struct platform_device *pdev)
> +static int sun4i_gpadc_probe_mfd(struct platform_device *pdev,
> + struct iio_dev *indio_dev)
> {
> - struct sun4i_gpadc_iio *info;
> - struct iio_dev *indio_dev;
> + struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
> + struct sun4i_gpadc_dev *sun4i_gpadc_dev =
> + dev_get_drvdata(pdev->dev.parent);
> int ret;
> - struct sun4i_gpadc_dev *sun4i_gpadc_dev;
> -
> - sun4i_gpadc_dev = dev_get_drvdata(pdev->dev.parent);
> -
> - indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
> - if (!indio_dev)
> - return -ENOMEM;
>
> - info = iio_priv(indio_dev);
> - platform_set_drvdata(pdev, indio_dev);
> -
> - mutex_init(&info->mutex);
> info->regmap = sun4i_gpadc_dev->regmap;
> - info->indio_dev = indio_dev;
> - init_completion(&info->completion);
> - indio_dev->name = dev_name(&pdev->dev);
> - indio_dev->dev.parent = &pdev->dev;
> - indio_dev->dev.of_node = pdev->dev.of_node;
> - indio_dev->info = &sun4i_gpadc_iio_info;
> - indio_dev->modes = INDIO_DIRECT_MODE;
> +
> indio_dev->num_channels = ARRAY_SIZE(sun4i_gpadc_channels);
> indio_dev->channels = sun4i_gpadc_channels;
>
> @@ -519,8 +504,7 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
> dev_err(&pdev->dev,
> "could not register thermal sensor: %ld\n",
> PTR_ERR(tzd));
> - ret = PTR_ERR(tzd);
> - goto err;
> + return PTR_ERR(tzd);
> }
> } else {
> indio_dev->num_channels =
> @@ -528,36 +512,65 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
> indio_dev->channels = sun4i_gpadc_channels_no_temp;
> }
>
> - pm_runtime_set_autosuspend_delay(&pdev->dev,
> - SUN4I_GPADC_AUTOSUSPEND_DELAY);
> - pm_runtime_use_autosuspend(&pdev->dev);
> - pm_runtime_set_suspended(&pdev->dev);
> - pm_runtime_enable(&pdev->dev);
> -
> if (IS_ENABLED(CONFIG_THERMAL_OF)) {
> ret = sun4i_irq_init(pdev, "TEMP_DATA_PENDING",
> sun4i_gpadc_temp_data_irq_handler,
> "temp_data", &info->temp_data_irq,
> &info->ignore_temp_data_irq);
> if (ret < 0)
> - goto err;
> + return ret;
> }
>
> ret = sun4i_irq_init(pdev, "FIFO_DATA_PENDING",
> sun4i_gpadc_fifo_data_irq_handler, "fifo_data",
> &info->fifo_data_irq, &info->ignore_fifo_data_irq);
> if (ret < 0)
> - goto err;
> + return ret;
>
> if (IS_ENABLED(CONFIG_THERMAL_OF)) {
> ret = iio_map_array_register(indio_dev, sun4i_gpadc_hwmon_maps);
> if (ret < 0) {
> dev_err(&pdev->dev,
> "failed to register iio map array\n");
> - goto err;
> + return ret;
> }
> }
>
> + return 0;
> +}
> +
> +static int sun4i_gpadc_probe(struct platform_device *pdev)
> +{
> + struct sun4i_gpadc_iio *info;
> + struct iio_dev *indio_dev;
> + int ret;
> +
> + indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
> + if (!indio_dev)
> + return -ENOMEM;
> +
> + info = iio_priv(indio_dev);
> + platform_set_drvdata(pdev, indio_dev);
> +
> + mutex_init(&info->mutex);
> + info->indio_dev = indio_dev;
> + init_completion(&info->completion);
> + indio_dev->name = dev_name(&pdev->dev);
> + indio_dev->dev.parent = &pdev->dev;
> + indio_dev->dev.of_node = pdev->dev.of_node;
> + indio_dev->info = &sun4i_gpadc_iio_info;
> + indio_dev->modes = INDIO_DIRECT_MODE;
> +
> + ret = sun4i_gpadc_probe_mfd(pdev, indio_dev);
> + if (ret)
> + return ret;
> +
> + pm_runtime_set_autosuspend_delay(&pdev->dev,
> + SUN4I_GPADC_AUTOSUSPEND_DELAY);
> + pm_runtime_use_autosuspend(&pdev->dev);
> + pm_runtime_set_suspended(&pdev->dev);
> + pm_runtime_enable(&pdev->dev);
> +
> ret = devm_iio_device_register(&pdev->dev, indio_dev);
> if (ret < 0) {
> dev_err(&pdev->dev, "could not register the device\n");
> @@ -570,7 +583,6 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
> if (IS_ENABLED(CONFIG_THERMAL_OF))
> iio_map_array_unregister(indio_dev);
>
> -err:
> pm_runtime_put(&pdev->dev);
> pm_runtime_disable(&pdev->dev);
>
>
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