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thermal: tsens: Pass register offsets as private data

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Registers have moved around across TSENS generations. For example, the
CTRL register was at offset 0x0 in the SROT region on msm8916 but is at
offset 0x4 in newer v2 based TSENS HW blocks.

Allow passing offsets of important registers so that we can continue to
use common functions.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Amit Kucheria 2018-09-12 15:22:52 +05:30 committed by Eduardo Valentin
parent a15525b5d9
commit c130a7602e
5 changed files with 16 additions and 0 deletions
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1
drivers/thermal/qcom/tsens-8916.c
View File

@ -100,5 +100,6 @@ static const struct tsens_ops ops_8916 = {
const struct tsens_data data_8916 = {
.num_sensors = 5,
.ops = &ops_8916,
.reg_offsets = { [SROT_CTRL_OFFSET] = 0x0 },
.hw_ids = (unsigned int []){0, 1, 2, 4, 5 },
};

1
drivers/thermal/qcom/tsens-8974.c
View File

@ -232,4 +232,5 @@ static const struct tsens_ops ops_8974 = {
const struct tsens_data data_8974 = {
.num_sensors = 11,
.ops = &ops_8974,
.reg_offsets = { [SROT_CTRL_OFFSET] = 0x0 },
};

2
drivers/thermal/qcom/tsens-v2.c
View File

@ -68,10 +68,12 @@ static const struct tsens_ops ops_generic_v2 = {
const struct tsens_data data_tsens_v2 = {
.ops = &ops_generic_v2,
.reg_offsets = { [SROT_CTRL_OFFSET] = 0x4 },
};
/* Kept around for backward compatibility with old msm8996.dtsi */
const struct tsens_data data_8996 = {
.num_sensors = 13,
.ops = &ops_generic_v2,
.reg_offsets = { [SROT_CTRL_OFFSET] = 0x4 },
};

3
drivers/thermal/qcom/tsens.c
View File

@ -144,6 +144,9 @@ static int tsens_probe(struct platform_device *pdev)
else
tmdev->sensor[i].hw_id = i;
}
for (i = 0; i < REG_ARRAY_SIZE; i++) {
tmdev->reg_offsets[i] = data->reg_offsets[i];
}
if (!tmdev->ops || !tmdev->ops->init || !tmdev->ops->get_temp)
return -EINVAL;

9
drivers/thermal/qcom/tsens.h
View File

@ -48,15 +48,23 @@ struct tsens_ops {
int (*get_trend)(struct tsens_device *, int, enum thermal_trend *);
};
enum reg_list {
SROT_CTRL_OFFSET,
REG_ARRAY_SIZE,
};
/**
* struct tsens_data - tsens instance specific data
* @num_sensors: Max number of sensors supported by platform
* @ops: operations the tsens instance supports
* @hw_ids: Subset of sensors ids supported by platform, if not the first n
* @reg_offsets: Register offsets for commonly used registers
*/
struct tsens_data {
const u32 num_sensors;
const struct tsens_ops *ops;
const u16 reg_offsets[REG_ARRAY_SIZE];
unsigned int *hw_ids;
};
@ -72,6 +80,7 @@ struct tsens_device {
struct regmap *tm_map;
struct regmap *srot_map;
u32 tm_offset;
u16 reg_offsets[REG_ARRAY_SIZE];
struct tsens_context ctx;
const struct tsens_ops *ops;
struct tsens_sensor sensor[0];