linux-kernel - Re: [PATCH v5 2/3] hwmon/ltc2990: Generalise DT to fwnode support

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Date:   Tue, 20 Aug 2019 08:07:35 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Max Staudt <max@...as.org>
Cc:     linux-i2c@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Jean Delvare <jdelvare@...e.com>, linux-m68k@...r.kernel.org,
        linux-kernel@...r.kernel.org, glaubitz@...sik.fu-berlin.de
Subject: Re: [PATCH v5 2/3] hwmon/ltc2990: Generalise DT to fwnode support

On Mon, Aug 19, 2019 at 02:16:17PM +0200, Max Staudt wrote:
> ltc2990 will now use device_property_read_u32_array() instead of
> of_property_read_u32_array() - allowing the use of software nodes
> via fwnode_create_software_node().
> 
> This allows code using i2c_new_device() to specify a default
> measurement mode for the LTC2990 via fwnode_create_software_node().
> 
> Signed-off-by: Max Staudt <max@...as.org>
> Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Applied to hwmon-next.

Thanks,
Guenter

> ---
>  drivers/hwmon/ltc2990.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/hwmon/ltc2990.c b/drivers/hwmon/ltc2990.c
> index f9431ad43..53ff50517 100644
> --- a/drivers/hwmon/ltc2990.c
> +++ b/drivers/hwmon/ltc2990.c
> @@ -13,7 +13,7 @@
>  #include <linux/i2c.h>
>  #include <linux/kernel.h>
>  #include <linux/module.h>
> -#include <linux/of.h>
> +#include <linux/property.h>
>  
>  #define LTC2990_STATUS	0x00
>  #define LTC2990_CONTROL	0x01
> @@ -206,7 +206,6 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c,
>  	int ret;
>  	struct device *hwmon_dev;
>  	struct ltc2990_data *data;
> -	struct device_node *of_node = i2c->dev.of_node;
>  
>  	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
>  				     I2C_FUNC_SMBUS_WORD_DATA))
> @@ -218,9 +217,10 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c,
>  
>  	data->i2c = i2c;
>  
> -	if (of_node) {
> -		ret = of_property_read_u32_array(of_node, "lltc,meas-mode",
> -						 data->mode, 2);
> +	if (dev_fwnode(&i2c->dev)) {
> +		ret = device_property_read_u32_array(&i2c->dev,
> +						     "lltc,meas-mode",
> +						     data->mode, 2);
>  		if (ret < 0)
>  			return ret;
>