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Date: Wed, 03 Sep 2014 22:00:13 +0200
From: Heiko Stübner <heiko@...ech.de>
To: Chris Zhong <zyw@...k-chips.com>
Cc: lee.jones@...aro.org, lgirdwood@...il.com, broonie@...nel.org,
a.zummo@...ertech.it, mturquette@...aro.org,
akpm@...ux-foundation.org, dianders@...omium.org,
robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
sameo@...ux.intel.com, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
grant.likely@...aro.org, hl@...k-chips.com,
huangtao@...k-chips.com, cf@...k-chips.com,
zhangqing@...k-chips.com, xxx@...k-chips.com, olof@...om.net,
sonnyrao@...omium.org, dtor@...omium.org,
javier.martinez@...labora.co.uk, kever.yang@...k-chips.com
Subject: Re: [PATCH v8 5/5] regulator: RK808: Remove pdata from the regulator
Am Donnerstag, 4. September 2014, 01:06:14 schrieb Chris Zhong:
> Signed-off-by: Chris Zhong <zyw@...k-chips.com>
>
> Tested-by: Heiko <heiko@...ech.de>
> ---
>
> Changes in v8:
> Adviced by Doug
> - remove rk808_regulator_dts() function
> - remove the check about "client->dev.of_node"
>
> Changes in v7:
> - remove pdata struct from header file, add rk808_regulator struct
>
> Changes in v6:
> - remove the redundant code
>
> Changes in v5:
> - re-edit base on Mark's branch
>
> Changes in v4:
> - use &client->dev replace rk808->dev
>
> Changes in v3: None
> Changes in v2:
> Adviced by Mark Browm:
> - change of_find_node_by_name to find_child_by_name
> - use RK808_NUM_REGULATORS as the name of the constant
> - create a pdata when missing platform data
> - use the rk808_reg name to supply_regulator name
> - replace regulator_register with devm_regulator_register
> - some other problem with coding style
>
> drivers/regulator/rk808-regulator.c | 89
> +++++++---------------------------- 1 file changed, 17 insertions(+), 72
> deletions(-)
>
> diff --git a/drivers/regulator/rk808-regulator.c
> b/drivers/regulator/rk808-regulator.c index e372008..1f6d108 100644
> --- a/drivers/regulator/rk808-regulator.c
> +++ b/drivers/regulator/rk808-regulator.c
> @@ -3,8 +3,8 @@
> *
> * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
> *
> - * Author: Chris Zhong <zyw@...k-chips.com>
> - * Author: Zhang Qing <zhangqing@...k-chips.com>
> + * Author: Chris Zhong<zyw@...k-chips.com>
> + * Author: Zhang Qing<zhanqging@...k-chips.com>
> *
> * This program is free software; you can redistribute it and/or modify it
> * under the terms and conditions of the GNU General Public License,
> @@ -14,24 +14,16 @@
> * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
> for * more details.
> - *
> */
>
> #include <linux/module.h>
> -#include <linux/init.h>
> #include <linux/i2c.h>
> -#include <linux/err.h>
> -#include <linux/platform_device.h>
> #include <linux/mfd/rk808.h>
> -#include <linux/of.h>
> #include <linux/of_device.h>
> #include <linux/regulator/driver.h>
> #include <linux/regulator/of_regulator.h>
> -#include <linux/regmap.h>
> -#include <linux/slab.h>
> -/*
> - * Field Definitions.
> - */
> +
> +/* Field Definitions */
> #define RK808_BUCK_VSEL_MASK 0x3f
> #define RK808_BUCK4_VSEL_MASK 0xf
> #define RK808_LDO_VSEL_MASK 0x1f
> @@ -50,10 +42,6 @@ static const int buck_contr_base_addr[] = {
> RK808_BUCK4_CONFIG_REG,
> };
>
> -#define rk808_BUCK_SET_VOL_REG(x) (buck_set_vol_base_addr[x])
> -#define rk808_BUCK_CONTR_REG(x) (buck_contr_base_addr[x])
> -#define rk808_LDO_SET_VOL_REG(x) (ldo_set_vol_base_addr[x])
> -
> static const int ldo_set_vol_base_addr[] = {
> RK808_LDO1_ON_VSEL_REG,
> RK808_LDO2_ON_VSEL_REG,
> @@ -65,9 +53,7 @@ static const int ldo_set_vol_base_addr[] = {
> RK808_LDO8_ON_VSEL_REG,
> };
>
> -/*
> - * rk808 voltage number
> - */
> +/* rk808 voltage number */
> static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
> REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
> };
> @@ -308,77 +294,35 @@ static struct of_regulator_match rk808_reg_matches[] =
> { [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" },
> };
>
> -static int rk808_regulator_dts(struct i2c_client *client,
> - struct rk808_board *pdata)
> -{
> - struct device_node *np, *reg_np;
> - int i, ret;
> -
> - np = client->dev.of_node;
> - if (!np) {
> - dev_err(&client->dev, "could not find pmic sub-node\n");
> - return -ENXIO;
> - }
> -
> - reg_np = of_get_child_by_name(np, "regulators");
> - if (!reg_np)
> - return -ENXIO;
> -
> - ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches,
> - RK808_NUM_REGULATORS);
> - if (ret < 0) {
> - dev_err(&client->dev,
> - "failed to parse regulator data: %d\n", ret);
> - return ret;
> - }
> -
> - for (i = 0; i < RK808_NUM_REGULATORS; i++) {
> - if (!rk808_reg_matches[i].init_data ||
> - !rk808_reg_matches[i].of_node)
> - continue;
> -
> - pdata->rk808_init_data[i] = rk808_reg_matches[i].init_data;
> - pdata->of_node[i] = rk808_reg_matches[i].of_node;
> - }
> -
> - return 0;
> -}
> -
> static int rk808_regulator_probe(struct platform_device *pdev)
> {
> struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
> struct i2c_client *client = rk808->i2c;
> - struct rk808_board *pdata = dev_get_platdata(&client->dev);
> struct regulator_config config = {};
> struct regulator_dev *rk808_rdev;
> - struct regulator_init_data *reg_data;
> - int i = 0;
> int ret = 0;
> + int i = 0;
>
> - if (!pdata) {
> - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
> - if (!pdata)
> - return -ENOMEM;
> - }
> + reg_np = of_get_child_by_name(np, "regulators");
It looks like an error happened while moving that block of code, because with
this applied both "reg_np" and "np" are not defined - thus producing compile
errors.
Heiko
> + if (!reg_np)
> + return -ENXIO;
>
> - ret = rk808_regulator_dts(client, pdata);
> - if (ret)
> + ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches,
> + RK808_NUM_REGULATORS);
> + if (ret < 0)
> return ret;
>
> /* Instantiate the regulators */
> for (i = 0; i < RK808_NUM_REGULATORS; i++) {
> - reg_data = pdata->rk808_init_data[i];
> - if (!reg_data)
> + if (!rk808_reg_matches[i].init_data ||
> + !rk808_reg_matches[i].of_node)
> continue;
>
> config.dev = &client->dev;
> config.driver_data = rk808;
> config.regmap = rk808->regmap;
> -
> - if (client->dev.of_node)
> - config.of_node = pdata->of_node[i];
> -
> - config.init_data = reg_data;
> + config.of_node = rk808_reg_matches[i].of_node;
> + config.init_data = rk808_reg_matches[i].init_data;
>
> rk808_rdev = devm_regulator_register(&pdev->dev,
> &rk808_reg[i], &config);
> @@ -388,6 +332,7 @@ static int rk808_regulator_probe(struct platform_device
> *pdev) return PTR_ERR(rk808_rdev);
> }
> }
> +
> return 0;
> }
--
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