On Fri, Nov 20, 2020 at 12:14:55PM +0000, Adam Ward wrote: > @@ -1,7 +1,21 @@ > // SPDX-License-Identifier: GPL-2.0-only > -/* Copyright (C) 2020 Axis Communications AB */ > +/* Copyright (C) 2020 Axis Communications AB > + * > + * DA9121 Single-channel dual-phase 10A buck converter
Please make the entire comment a C++ one so things look more
intentional.
> + node = of_get_child_by_name(chip->dev->of_node, "regulators");
> + if (!node) {
> + dev_err(chip->dev, "Regulators node not found\n");
> + return ERR_PTR(-ENODEV);
> + }
> +
> + num = of_regulator_match(chip->dev, node, da9121_matches,
> + ARRAY_SIZE(da9121_matches));
Use of_parse_cb().
> + /* interrupt assumptions require at least one buck to be configured */
> + if (num == 0) {
> + dev_err(chip->dev, "Did not match any regulators in the DT\n");
> + return ERR_PTR(-EINVAL);
> + }
The physical presence of the regulator is not going to change based on
the DT.
> + if (variant_parameters[chip->variant_id].num_bucks == 2) {
> + uint32_t ripple_cancel;
> + uint32_t reg = (i ? DA9xxx_REG_BUCK_BUCK2_7
> + : DA9121_REG_BUCK_BUCK1_7);
Please write normal conditional statements to improve legibility.
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