Re: [PATCH v2 1/1] iio: frequency: adf4350: Make use of device properties

[Jonathan Cameron <jic23@kernel.org>]

On Thu,  3 Feb 2022 13:00:06 +0200
Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

> Convert the module to be property provider agnostic and allow
> it to be used on non-OF platforms.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Whilst it's long each individual change is simple, so applied to the togreg
branch of iio.git and pushed out as testing to see if the autobuilders
can find anything we missed.

Thanks,

Jonathan


> ---
> v2: fixed typo (lkp)
>  drivers/iio/frequency/adf4350.c | 103 +++++++++++++-------------------
>  1 file changed, 42 insertions(+), 61 deletions(-)
> 
> diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
> index 3d9eba716b69..9af20a51540d 100644
> --- a/drivers/iio/frequency/adf4350.c
> +++ b/drivers/iio/frequency/adf4350.c
> @@ -7,17 +7,18 @@
>  
>  #include <linux/device.h>
>  #include <linux/kernel.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/module.h>
> +#include <linux/property.h>
>  #include <linux/slab.h>
>  #include <linux/sysfs.h>
>  #include <linux/spi/spi.h>
>  #include <linux/regulator/consumer.h>
>  #include <linux/err.h>
> -#include <linux/module.h>
>  #include <linux/gcd.h>
>  #include <linux/gpio/consumer.h>
>  #include <asm/div64.h>
>  #include <linux/clk.h>
> -#include <linux/of.h>
>  
>  #include <linux/iio/iio.h>
>  #include <linux/iio/sysfs.h>
> @@ -381,10 +382,8 @@ static const struct iio_info adf4350_info = {
>  	.debugfs_reg_access = &adf4350_reg_access,
>  };
>  
> -#ifdef CONFIG_OF
>  static struct adf4350_platform_data *adf4350_parse_dt(struct device *dev)
>  {
> -	struct device_node *np = dev->of_node;
>  	struct adf4350_platform_data *pdata;
>  	unsigned int tmp;
>  
> @@ -392,101 +391,83 @@ static struct adf4350_platform_data *adf4350_parse_dt(struct device *dev)
>  	if (!pdata)
>  		return NULL;
>  
> -	snprintf(&pdata->name[0], SPI_NAME_SIZE - 1, "%pOFn", np);
> +	snprintf(pdata->name, sizeof(pdata->name), "%pfw", dev_fwnode(dev));
>  
>  	tmp = 10000;
> -	of_property_read_u32(np, "adi,channel-spacing", &tmp);
> +	device_property_read_u32(dev, "adi,channel-spacing", &tmp);
>  	pdata->channel_spacing = tmp;
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,power-up-frequency", &tmp);
> +	device_property_read_u32(dev, "adi,power-up-frequency", &tmp);
>  	pdata->power_up_frequency = tmp;
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,reference-div-factor", &tmp);
> +	device_property_read_u32(dev, "adi,reference-div-factor", &tmp);
>  	pdata->ref_div_factor = tmp;
>  
> -	pdata->ref_doubler_en = of_property_read_bool(np,
> -			"adi,reference-doubler-enable");
> -	pdata->ref_div2_en = of_property_read_bool(np,
> -			"adi,reference-div2-enable");
> +	pdata->ref_doubler_en = device_property_read_bool(dev, "adi,reference-doubler-enable");
> +	pdata->ref_div2_en = device_property_read_bool(dev, "adi,reference-div2-enable");
>  
>  	/* r2_user_settings */
> -	pdata->r2_user_settings = of_property_read_bool(np,
> -			"adi,phase-detector-polarity-positive-enable") ?
> -			ADF4350_REG2_PD_POLARITY_POS : 0;
> -	pdata->r2_user_settings |= of_property_read_bool(np,
> -			"adi,lock-detect-precision-6ns-enable") ?
> -			ADF4350_REG2_LDP_6ns : 0;
> -	pdata->r2_user_settings |= of_property_read_bool(np,
> -			"adi,lock-detect-function-integer-n-enable") ?
> -			ADF4350_REG2_LDF_INT_N : 0;
> +	pdata->r2_user_settings = 0;
> +	if (device_property_read_bool(dev, "adi,phase-detector-polarity-positive-enable"))
> +		pdata->r2_user_settings |= ADF4350_REG2_PD_POLARITY_POS;
> +	if (device_property_read_bool(dev, "adi,lock-detect-precision-6ns-enable"))
> +		pdata->r2_user_settings |= ADF4350_REG2_LDP_6ns;
> +	if (device_property_read_bool(dev, "adi,lock-detect-function-integer-n-enable"))
> +		pdata->r2_user_settings |= ADF4350_REG2_LDF_INT_N;
>  
>  	tmp = 2500;
> -	of_property_read_u32(np, "adi,charge-pump-current", &tmp);
> +	device_property_read_u32(dev, "adi,charge-pump-current", &tmp);
>  	pdata->r2_user_settings |= ADF4350_REG2_CHARGE_PUMP_CURR_uA(tmp);
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,muxout-select", &tmp);
> +	device_property_read_u32(dev, "adi,muxout-select", &tmp);
>  	pdata->r2_user_settings |= ADF4350_REG2_MUXOUT(tmp);
>  
> -	pdata->r2_user_settings |= of_property_read_bool(np,
> -			"adi,low-spur-mode-enable") ?
> -			ADF4350_REG2_NOISE_MODE(0x3) : 0;
> +	if (device_property_read_bool(dev, "adi,low-spur-mode-enable"))
> +		pdata->r2_user_settings |= ADF4350_REG2_NOISE_MODE(0x3);
>  
>  	/* r3_user_settings */
>  
> -	pdata->r3_user_settings = of_property_read_bool(np,
> -			"adi,cycle-slip-reduction-enable") ?
> -			ADF4350_REG3_12BIT_CSR_EN : 0;
> -	pdata->r3_user_settings |= of_property_read_bool(np,
> -			"adi,charge-cancellation-enable") ?
> -			ADF4351_REG3_CHARGE_CANCELLATION_EN : 0;
> -
> -	pdata->r3_user_settings |= of_property_read_bool(np,
> -			"adi,anti-backlash-3ns-enable") ?
> -			ADF4351_REG3_ANTI_BACKLASH_3ns_EN : 0;
> -	pdata->r3_user_settings |= of_property_read_bool(np,
> -			"adi,band-select-clock-mode-high-enable") ?
> -			ADF4351_REG3_BAND_SEL_CLOCK_MODE_HIGH : 0;
> +	pdata->r3_user_settings = 0;
> +	if (device_property_read_bool(dev, "adi,cycle-slip-reduction-enable"))
> +		pdata->r3_user_settings |= ADF4350_REG3_12BIT_CSR_EN;
> +	if (device_property_read_bool(dev, "adi,charge-cancellation-enable"))
> +		pdata->r3_user_settings |= ADF4351_REG3_CHARGE_CANCELLATION_EN;
> +	if (device_property_read_bool(dev, "adi,anti-backlash-3ns-enable"))
> +		pdata->r3_user_settings |= ADF4351_REG3_ANTI_BACKLASH_3ns_EN;
> +	if (device_property_read_bool(dev, "adi,band-select-clock-mode-high-enable"))
> +		pdata->r3_user_settings |= ADF4351_REG3_BAND_SEL_CLOCK_MODE_HIGH;
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,12bit-clk-divider", &tmp);
> +	device_property_read_u32(dev, "adi,12bit-clk-divider", &tmp);
>  	pdata->r3_user_settings |= ADF4350_REG3_12BIT_CLKDIV(tmp);
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,clk-divider-mode", &tmp);
> +	device_property_read_u32(dev, "adi,clk-divider-mode", &tmp);
>  	pdata->r3_user_settings |= ADF4350_REG3_12BIT_CLKDIV_MODE(tmp);
>  
>  	/* r4_user_settings */
>  
> -	pdata->r4_user_settings = of_property_read_bool(np,
> -			"adi,aux-output-enable") ?
> -			ADF4350_REG4_AUX_OUTPUT_EN : 0;
> -	pdata->r4_user_settings |= of_property_read_bool(np,
> -			"adi,aux-output-fundamental-enable") ?
> -			ADF4350_REG4_AUX_OUTPUT_FUND : 0;
> -	pdata->r4_user_settings |= of_property_read_bool(np,
> -			"adi,mute-till-lock-enable") ?
> -			ADF4350_REG4_MUTE_TILL_LOCK_EN : 0;
> +	pdata->r4_user_settings = 0;
> +	if (device_property_read_bool(dev, "adi,aux-output-enable"))
> +		pdata->r4_user_settings |= ADF4350_REG4_AUX_OUTPUT_EN;
> +	if (device_property_read_bool(dev, "adi,aux-output-fundamental-enable"))
> +		pdata->r4_user_settings |= ADF4350_REG4_AUX_OUTPUT_FUND;
> +	if (device_property_read_bool(dev, "adi,mute-till-lock-enable"))
> +		pdata->r4_user_settings |= ADF4350_REG4_MUTE_TILL_LOCK_EN;
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,output-power", &tmp);
> +	device_property_read_u32(dev, "adi,output-power", &tmp);
>  	pdata->r4_user_settings |= ADF4350_REG4_OUTPUT_PWR(tmp);
>  
>  	tmp = 0;
> -	of_property_read_u32(np, "adi,aux-output-power", &tmp);
> +	device_property_read_u32(dev, "adi,aux-output-power", &tmp);
>  	pdata->r4_user_settings |= ADF4350_REG4_AUX_OUTPUT_PWR(tmp);
>  
>  	return pdata;
>  }
> -#else
> -static
> -struct adf4350_platform_data *adf4350_parse_dt(struct device *dev)
> -{
> -	return NULL;
> -}
> -#endif
>