linux-kernel - [PATCH v3 2/3] mfd/axp20x: add support for fuel gauge cell

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Message-Id: <78fc83e74e2d3303950b10c95faf6e161131a488.1422478693.git.todd.e.brandt@linux.intel.com>
Date:	Wed, 28 Jan 2015 13:23:39 -0800
From:	Todd Brandt <todd.e.brandt@...ux.intel.com>
To:	linux-pm@...r.kernel.org, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	todd.e.brandt@...ux.intel.com, todd.e.brandt@...el.com,
	jacob.jun.pan@...ux.intel.com, sameo@...ux.intel.com,
	lee.jones@...aro.org, sre@...nel.org, dbaryshkov@...il.com,
	dwmw2@...radead.org, david.woodhouse@...el.com, jic23@...nel.org
Subject: [PATCH v3 2/3] mfd/axp20x: add support for fuel gauge cell

Register definitions and platform data structure
for fuel gauge cell devices.

Signed-off-by: Todd Brandt <todd.e.brandt@...ux.intel.com>
Acked-By: Sebastian Reichel <sre@...nel.org>
Acked-By: Jacob Pan <jacob.jun.pan@...ux.intel.com>
Acked-By: Lee Jones <lee.jones@...aro.org>
---
 include/linux/mfd/axp20x.h | 43 +++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 41 insertions(+), 2 deletions(-)

v3: same as v1-2 and is already accepted, re-included for continuity

diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 81589d1..dfabd6d 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -124,10 +124,27 @@ enum {
 #define AXP288_PMIC_ADC_H               0x56
 #define AXP288_PMIC_ADC_L               0x57
 #define AXP288_ADC_TS_PIN_CTRL          0x84
-
 #define AXP288_PMIC_ADC_EN              0x84
-#define AXP288_FG_TUNE5			0xed
 
+/* Fuel Gauge */
+#define AXP288_FG_RDC1_REG          0xba
+#define AXP288_FG_RDC0_REG          0xbb
+#define AXP288_FG_OCVH_REG          0xbc
+#define AXP288_FG_OCVL_REG          0xbd
+#define AXP288_FG_OCV_CURVE_REG     0xc0
+#define AXP288_FG_DES_CAP1_REG      0xe0
+#define AXP288_FG_DES_CAP0_REG      0xe1
+#define AXP288_FG_CC_MTR1_REG       0xe2
+#define AXP288_FG_CC_MTR0_REG       0xe3
+#define AXP288_FG_OCV_CAP_REG       0xe4
+#define AXP288_FG_CC_CAP_REG        0xe5
+#define AXP288_FG_LOW_CAP_REG       0xe6
+#define AXP288_FG_TUNE0             0xe8
+#define AXP288_FG_TUNE1             0xe9
+#define AXP288_FG_TUNE2             0xea
+#define AXP288_FG_TUNE3             0xeb
+#define AXP288_FG_TUNE4             0xec
+#define AXP288_FG_TUNE5             0xed
 
 /* Regulators IDs */
 enum {
@@ -236,4 +253,26 @@ struct axp20x_dev {
 	const struct regmap_irq_chip	*regmap_irq_chip;
 };
 
+#define BATTID_LEN				64
+#define OCV_CURVE_SIZE			32
+#define MAX_THERM_CURVE_SIZE	25
+#define PD_DEF_MIN_TEMP			0
+#define PD_DEF_MAX_TEMP			55
+
+struct axp20x_fg_pdata {
+	char battid[BATTID_LEN + 1];
+	int design_cap;
+	int min_volt;
+	int max_volt;
+	int max_temp;
+	int min_temp;
+	int cap1;
+	int cap0;
+	int rdc1;
+	int rdc0;
+	int ocv_curve[OCV_CURVE_SIZE];
+	int tcsz;
+	int thermistor_curve[MAX_THERM_CURVE_SIZE][2];
+};
+
 #endif /* __LINUX_MFD_AXP20X_H */
-- 
2.1.0

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