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Date: Tue, 6 Jul 2021 14:34:47 +0000
From: Vincent Pelletier <plr.vincent@...il.com>
To: Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>,
Jonathan Corbet <corbet@....net>,
Support Opensource <support.opensource@...semi.com>,
Lee Jones <lee.jones@...aro.org>, linux-hwmon@...r.kernel.org,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
"Opensource [Steve Twiss]" <stwiss.opensource@...semi.com>
Subject: [PATCH 1/3] mfd: da9063: Add HWMON dependencies
From: "Opensource [Steve Twiss]" <stwiss.opensource@...semi.com>
Dependencies required for DA9063 HWMON support.
Signed-off-by: Opensource [Steve Twiss] <stwiss.opensource@...semi.com>
Directly set da9063->t_offset.
Let MFD probe succeed even if DA9063_REG_T_OFFSET cannot be read.
Signed-off-by: Vincent Pelletier <plr.vincent@...il.com>
---
Changes in v2:
- registers.h changes moved from patch 2
Originally submitted by Steve Twiss in 2014:
https://marc.info/?l=linux-kernel&m=139560864709852&w=2
drivers/mfd/da9063-core.c | 8 +++++++
include/linux/mfd/da9063/core.h | 3 +++
include/linux/mfd/da9063/registers.h | 34 ++++++++++++++++++++++++++++
3 files changed, 45 insertions(+)
diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
index df407c3afce3..14c2a8df9ae3 100644
--- a/drivers/mfd/da9063-core.c
+++ b/drivers/mfd/da9063-core.c
@@ -197,6 +197,14 @@ int da9063_device_init(struct da9063 *da9063, unsigned int irq)
}
}
+ ret = regmap_read(da9063->regmap, DA9063_REG_T_OFFSET, &da9063->t_offset);
+ if (ret < 0) {
+ da9063->t_offset = 0;
+ dev_warn(da9063->dev,
+ "Temperature trimming value cannot be read (defaulting to 0)\n");
+ ret = 0;
+ }
+
return ret;
}
diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h
index fa7a43f02f27..c0c57c6f6230 100644
--- a/include/linux/mfd/da9063/core.h
+++ b/include/linux/mfd/da9063/core.h
@@ -85,6 +85,9 @@ struct da9063 {
int chip_irq;
unsigned int irq_base;
struct regmap_irq_chip_data *regmap_irq;
+
+ /* Trimming */
+ int t_offset;
};
int da9063_device_init(struct da9063 *da9063, unsigned int irq);
diff --git a/include/linux/mfd/da9063/registers.h b/include/linux/mfd/da9063/registers.h
index 6e0f66a2e727..297631ddda39 100644
--- a/include/linux/mfd/da9063/registers.h
+++ b/include/linux/mfd/da9063/registers.h
@@ -512,6 +512,7 @@
/* DA9063_REG_GPIO_0_1 (addr=0x15) */
#define DA9063_GPIO0_PIN_MASK 0x03
+#define DA9063_GPIO0_PIN_MASK_SHIFT 0
#define DA9063_GPIO0_PIN_ADCIN1 0x00
#define DA9063_GPIO0_PIN_GPI 0x01
#define DA9063_GPIO0_PIN_GPO_OD 0x02
@@ -523,6 +524,7 @@
#define DA9063_GPIO0_TYPE_GPO_VDD_IO2 0x04
#define DA9063_GPIO0_NO_WAKEUP 0x08
#define DA9063_GPIO1_PIN_MASK 0x30
+#define DA9063_GPIO1_PIN_MASK_SHIFT 4
#define DA9063_GPIO1_PIN_ADCIN2_COMP 0x00
#define DA9063_GPIO1_PIN_GPI 0x10
#define DA9063_GPIO1_PIN_GPO_OD 0x20
@@ -536,6 +538,7 @@
/* DA9063_REG_GPIO_2_3 (addr=0x16) */
#define DA9063_GPIO2_PIN_MASK 0x03
+#define DA9063_GPIO2_PIN_MASK_SHIFT 0
#define DA9063_GPIO2_PIN_ADCIN3 0x00
#define DA9063_GPIO2_PIN_GPI 0x01
#define DA9063_GPIO2_PIN_GPO_PSS 0x02
@@ -851,6 +854,7 @@
#define DA9063_VSYS_VAL_BASE 0x00
/* DA9063_REG_ADC_RES_L (addr=0x37) */
+#define DA9063_ADC_RES_L_SHIFT 6
#define DA9063_ADC_RES_L_BITS 2
#define DA9063_ADC_RES_L_MASK 0xC0
@@ -1014,6 +1018,36 @@
#define DA9063_GPIO_DIM 0x80
#define DA9063_GPIO_PWM_MASK 0x7F
+/* DA9063_REG_ADC_CFG (addr=0xC9) */
+#define DA9063_REG_ADCIN1_CUR_MASK 0x03
+#define DA9063_REG_ADCIN1_CUR_SHIFT 0
+#define DA9063_ADCIN1_CUR_1UA 0x00
+#define DA9063_ADCIN1_CUR_2UA 0x01
+#define DA9063_ADCIN1_CUR_10UA 0x02
+#define DA9063_ADCIN1_CUR_40UA 0x03
+#define DA9063_REG_ADCIN2_CUR_MASK 0x0C
+#define DA9063_REG_ADCIN2_CUR_SHIFT 2
+#define DA9063_ADCIN2_CUR_1UA 0x00
+#define DA9063_ADCIN2_CUR_2UA 0x01
+#define DA9063_ADCIN2_CUR_10UA 0x02
+#define DA9063_ADCIN2_CUR_40UA 0x03
+#define DA9063_REG_ADCIN3_CUR_MASK 0x10
+#define DA9063_REG_ADCIN3_CUR_SHIFT 4
+#define DA9063_ADCIN3_CUR_10UA 0x00
+#define DA9063_ADCIN3_CUR_40UA 0x01
+#define DA9063_REG_ADCIN1_DEB_MASK 0x20
+#define DA9063_REG_ADCIN1_DEB_SHIFT 5
+#define DA9063_ADCIN1_DEB_OFF 0x00
+#define DA9063_ADCIN1_DEB_ON 0x01
+#define DA9063_REG_ADCIN2_DEB_MASK 0x40
+#define DA9063_REG_ADCIN2_DEB_SHIFT 6
+#define DA9063_ADCIN2_DEB_OFF 0x00
+#define DA9063_ADCIN2_DEB_ON 0x01
+#define DA9063_REG_ADCIN3_DEB_MASK 0x80
+#define DA9063_REG_ADCIN3_DEB_SHIFT 7
+#define DA9063_ADCIN3_DEB_OFF 0x00
+#define DA9063_ADCIN3_DEB_ON 0x01
+
/* DA9063_REG_CONFIG_H (addr=0x10D) */
#define DA9063_PWM_CLK_MASK 0x01
#define DA9063_PWM_CLK_PWM2MHZ 0x00
--
2.32.0
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