linux-kernel - [PATCH 1/3] mfd: max77693: Initialize haptic register map

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Date:	Mon, 01 Sep 2014 20:14:29 +0900
From:	Jaewon Kim <jaewon02.kim@...sung.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Jaewon Kim <jaewon02.kim@...sung.com>
Subject: [PATCH 1/3] mfd: max77693: Initialize haptic register map

This patch add regmap_haptic initialization to use haptic register map
in haptic device driver.

Signed-off-by: Jaewon Kim <jaewon02.kim@...sung.com>
Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/mfd/max77693.c |   21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index 249c139..fbfed56 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -144,6 +144,12 @@ static const struct regmap_irq_chip max77693_muic_irq_chip = {
 	.num_irqs		= ARRAY_SIZE(max77693_muic_irqs),
 };
 
+static const struct regmap_config max77693_regmap_haptic_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = MAX77693_HAPTIC_REG_END,
+};
+
 static int max77693_i2c_probe(struct i2c_client *i2c,
 			      const struct i2c_device_id *id)
 {
@@ -193,6 +199,15 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 	}
 	i2c_set_clientdata(max77693->haptic, max77693);
 
+	max77693->regmap_haptic = devm_regmap_init_i2c(max77693->haptic,
+					&max77693_regmap_haptic_config);
+	if (IS_ERR(max77693->regmap_haptic)) {
+		ret = PTR_ERR(max77693->regmap_haptic);
+		dev_err(max77693->dev,
+			"failed to initialize haptic register map: %d\n", ret);
+		goto err_regmap;
+	}
+
 	/*
 	 * Initialize register map for MUIC device because use regmap-muic
 	 * instance of MUIC device when irq of max77693 is initialized
@@ -204,7 +219,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 		ret = PTR_ERR(max77693->regmap_muic);
 		dev_err(max77693->dev,
 			"failed to allocate register map: %d\n", ret);
-		goto err_regmap_muic;
+		goto err_regmap;
 	}
 
 	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
@@ -214,7 +229,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 				&max77693->irq_data_led);
 	if (ret) {
 		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
-		goto err_regmap_muic;
+		goto err_regmap;
 	}
 
 	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
@@ -265,7 +280,7 @@ err_irq_charger:
 	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
 err_irq_topsys:
 	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);
-err_regmap_muic:
+err_regmap:
 	i2c_unregister_device(max77693->haptic);
 err_i2c_haptic:
 	i2c_unregister_device(max77693->muic);
-- 
1.7.9.5

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