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Subject[PATCH 1/3] mfd: da9063: Add HWMON dependencies
Date
From: "Opensource [Steve Twiss]" <stwiss.opensource@diasemi.com>

Dependencies required for DA9063 HWMON support.

Signed-off-by: Opensource [Steve Twiss] <stwiss.opensource@diasemi.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@gmail.com>
---
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 +++
2 files changed, 11 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);
--
2.32.0
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