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thermal: exynos: simplify temp_to_code() and code_to_temp()

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* Remove dead temp check from temp_to_code() (this function users
  in exynos_tmu_initialize() always pass correct temperatures and
  exynos_tmu_set_emulation() returns early for EXYNOS4210 because
  TMU_SUPPORT_EMULATION flag is not set on this SoC).

* Move temp_code check from code_to_temp() to exynos_tmu_read()
  (code_to_temp() only user).

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2014-07-31 19:11:03 +02:00 committed by Eduardo Valentin
parent 8131a24660
commit ddb31d43cb
1 changed files with 11 additions and 17 deletions
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28
drivers/thermal/samsung/exynos_tmu.c
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@ -77,13 +77,6 @@ static int temp_to_code(struct exynos_tmu_data *data, u8 temp)
struct exynos_tmu_platform_data *pdata = data->pdata;
int temp_code;
if (data->soc == SOC_ARCH_EXYNOS4210)
/* temp should range between 25 and 125 */
if (temp < 25 || temp > 125) {
temp_code = -EINVAL;
goto out;
}
switch (pdata->cal_type) {
case TYPE_TWO_POINT_TRIMMING:
temp_code = (temp - pdata->first_point_trim) *
@ -98,7 +91,7 @@ static int temp_to_code(struct exynos_tmu_data *data, u8 temp)
temp_code = temp + pdata->default_temp_offset;
break;
}
out:
return temp_code;
}
@ -111,13 +104,6 @@ static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
struct exynos_tmu_platform_data *pdata = data->pdata;
int temp;
if (data->soc == SOC_ARCH_EXYNOS4210)
/* temp_code should range between 75 and 175 */
if (temp_code < 75 || temp_code > 175) {
temp = -ENODATA;
goto out;
}
switch (pdata->cal_type) {
case TYPE_TWO_POINT_TRIMMING:
temp = (temp_code - data->temp_error1) *
@ -132,7 +118,7 @@ static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
temp = temp_code - pdata->default_temp_offset;
break;
}
out:
return temp;
}
@ -346,8 +332,16 @@ static int exynos_tmu_read(struct exynos_tmu_data *data)
clk_enable(data->clk);
temp_code = readb(data->base + reg->tmu_cur_temp);
temp = code_to_temp(data, temp_code);
if (data->soc == SOC_ARCH_EXYNOS4210)
/* temp_code should range between 75 and 175 */
if (temp_code < 75 || temp_code > 175) {
temp = -ENODATA;
goto out;
}
temp = code_to_temp(data, temp_code);
out:
clk_disable(data->clk);
mutex_unlock(&data->lock);