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From:   Andy Shevchenko <andy.shevchenko@gmail.com>
Date:   Tue, 20 Feb 2018 19:34:37 +0200
Message-ID: <CAHp75Vck_8G=zTD4ftYC7yd+q_6XiXWvs+kX_zqr6bUtMUf4wg@mail.gmail.com>
Subject: Re: [PATCH] max17042: propagate of_node to power supply device
To:     Pierre Bourdon <delroth@google.com>
Cc:     Andre Heider <a.heider@gmail.com>,
        Sebastian Reichel <sre@kernel.org>,
        Linux PM <linux-pm@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Tue, Feb 20, 2018 at 5:03 PM, Pierre Bourdon <delroth@google.com> wrote:
> max17042_get_status uses the core power_supply_am_i_supplied. That
> function relies on DT properties to figure out the power supply
> topology, and will error out without DT.

> +       psy_cfg.of_node = dev->of_node;

Perhaps do this in general manner, see how GPIOLIB takes care of it:

$ git grep -n -A4 -w CONFIG_OF_GPIO -- drivers/gpio/gpiolib.c
drivers/gpio/gpiolib.c:1161:#ifdef CONFIG_OF_GPIO
drivers/gpio/gpiolib.c-1162-    /* If the gpiochip has an assigned OF
node this takes precedence */
drivers/gpio/gpiolib.c-1163-    if (chip->of_node)
drivers/gpio/gpiolib.c-1164-            gdev->dev.of_node = chip->of_node;
drivers/gpio/gpiolib.c-1165-#endif
...

-- 
With Best Regards,
Andy Shevchenko