On Tue, 31 Aug 2021 01:21:35 +0800
Cai Huoqing <caihuoqing@xxxxxxxxx> wrote:
> ADC
>
> The NXP i.MX 8QuadXPlus SOC has a new ADC IP. This patch init
> this ADC driver.
>
> Signed-off-by: Cai Huoqing <caihuoqing@xxxxxxxxx>
> ---
> drivers/iio/adc/imx8qxp-adc.c | 67 +++++++++++++++++++++++++++++++++++
> 1 file changed, 67 insertions(+)
> create mode 100644 drivers/iio/adc/imx8qxp-adc.c
>
> diff --git a/drivers/iio/adc/imx8qxp-adc.c b/drivers/iio/adc/imx8qxp-adc.c
> new file mode 100644
> index 000000000000..aec1b45c8fb9
> --- /dev/null
> +++ b/drivers/iio/adc/imx8qxp-adc.c
> @@ -0,0 +1,67 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * NXP i.MX8QXP ADC driver
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/completion.h>
> +#include <linux/err.h>
> +#include <linux/interrupt.h>
> +#include <linux/io.h>
> +#include <linux/kernel.h>
> +#include <linux/delay.h>
> +#include <linux/module.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/platform_device.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/iio/iio.h>
> +#include <linux/iio/driver.h>
> +#include <linux/iio/sysfs.h>
A good example of why you shouldn't have had so many small patches is
that reviewers want to look at a patch on it's own. In this case
we can't tell if you are going to use these headers later or not.
Hence review is more complex.
I'll have a brief go at reviewing, but reality is a real review needs
to be easier to do than it is here!
I will note though that alphabetical order, perhaps with iio includes
in their own block is preferred for headers in IIO drivers.
> +
> +#define ADC_DRIVER_NAME "imx8qxp-adc"
> +
> +static int imx8qxp_adc_probe(struct platform_device *pdev)
> +{
> + return 0;
> +}
> +
> +static int imx8qxp_adc_remove(struct platform_device *pdev)
> +{
> + return 0;
> +}
> +
> +static int imx8qxp_adc_runtime_suspend(struct device *dev)
> +{
> + return 0;
> +}
> +
> +static int imx8qxp_adc_runtime_resume(struct device *dev)
> +{
> + return 0;
> +}
> +
> +static const struct dev_pm_ops imx8qxp_adc_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume)
> + SET_RUNTIME_PM_OPS(imx8qxp_adc_runtime_suspend, imx8qxp_adc_runtime_resume, NULL)
> +};
> +
> +static const struct of_device_id imx8qxp_adc_match[] = {
> + { .compatible = "nxp,imx8qxp-adc", },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, imx8qxp_adc_match);
> +
> +static struct platform_driver imx8qxp_adc_driver = {
> + .probe = imx8qxp_adc_probe,
> + .remove = imx8qxp_adc_remove,
> + .driver = {
> + .name = ADC_DRIVER_NAME,
> + .of_match_table = imx8qxp_adc_match,
> + .pm = &imx8qxp_adc_pm_ops,
> + },
> +};
> +
> +module_platform_driver(imx8qxp_adc_driver);
> +
> +MODULE_DESCRIPTION("i.MX8QuadXPlus ADC driver");
> +MODULE_LICENSE("GPL v2");
