linux-kernel - [PATCH 3/7] regulator: arizona-micsupp: Make arizona

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Date:   Tue, 18 Apr 2017 11:43:50 +0100
From:   Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
To:     <broonie@...nel.org>, <lee.jones@...aro.org>, <kgene@...nel.org>,
        <krzk@...nel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <patches@...nsource.wolfsonmicro.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-samsung-soc@...r.kernel.org>
Subject: [PATCH 3/7] regulator: arizona-micsupp: Make arizona_micsupp independent of struct arizona

In preparation for supporting Madera codecs, remove the dependency on
struct arizona in the regulator callbacks and struct arizona_micsupp.

Signed-off-by: Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
---
 drivers/regulator/arizona-micsupp.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index 5f8b5a7..db4fecf 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -34,7 +34,10 @@
 
 struct arizona_micsupp {
 	struct regulator_dev *regulator;
-	struct arizona *arizona;
+	struct regmap *regmap;
+	struct snd_soc_dapm_context **dapm;
+	unsigned int enable_reg;
+	struct device *dev;
 
 	struct regulator_consumer_supply supply;
 	struct regulator_init_data init_data;
@@ -46,21 +49,22 @@ static void arizona_micsupp_check_cp(struct work_struct *work)
 {
 	struct arizona_micsupp *micsupp =
 		container_of(work, struct arizona_micsupp, check_cp_work);
-	struct snd_soc_dapm_context *dapm = micsupp->arizona->dapm;
-	struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
-	struct arizona *arizona = micsupp->arizona;
-	struct regmap *regmap = arizona->regmap;
-	unsigned int reg;
+	struct snd_soc_dapm_context *dapm = *micsupp->dapm;
+	struct snd_soc_component *component;
+	unsigned int val;
 	int ret;
 
-	ret = regmap_read(regmap, ARIZONA_MIC_CHARGE_PUMP_1, &reg);
+	ret = regmap_read(micsupp->regmap, micsupp->enable_reg, &val);
 	if (ret != 0) {
-		dev_err(arizona->dev, "Failed to read CP state: %d\n", ret);
+		dev_err(micsupp->dev,
+			"Failed to read CP state: %d\n", ret);
 		return;
 	}
 
 	if (dapm) {
-		if ((reg & (ARIZONA_CPMIC_ENA | ARIZONA_CPMIC_BYPASS)) ==
+		component = snd_soc_dapm_to_component(dapm);
+
+		if ((val & (ARIZONA_CPMIC_ENA | ARIZONA_CPMIC_BYPASS)) ==
 		    ARIZONA_CPMIC_ENA)
 			snd_soc_component_force_enable_pin(component,
 							   "MICSUPP");
@@ -240,7 +244,9 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 	if (!micsupp)
 		return -ENOMEM;
 
-	micsupp->arizona = arizona;
+	micsupp->regmap = arizona->regmap;
+	micsupp->dapm = &arizona->dapm;
+	micsupp->dev = arizona->dev;
 	INIT_WORK(&micsupp->check_cp_work, arizona_micsupp_check_cp);
 
 	/*
@@ -263,6 +269,7 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 	micsupp->init_data.consumer_supplies = &micsupp->supply;
 	micsupp->supply.supply = "MICVDD";
 	micsupp->supply.dev_name = dev_name(arizona->dev);
+	micsupp->enable_reg = desc->enable_reg;
 
 	config.dev = arizona->dev;
 	config.driver_data = micsupp;
-- 
1.9.1