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author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2014-11-13 16:01:12 +0100 |
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committer | Eduardo Valentin <edubezval@gmail.com> | 2014-11-20 10:53:24 -0400 |
commit | fe87789cd437378e7cf72c43b753703b2a835fc3 (patch) | |
tree | 120cc4d98e1f583bdf1277104f11d894f7b04b67 /drivers/thermal/samsung/exynos_tmu.c | |
parent | 8328a4b1d67fa6a4e0c51c27ddb7cb61b562f33e (diff) | |
download | linux-fe87789cd437378e7cf72c43b753703b2a835fc3.tar.gz linux-fe87789cd437378e7cf72c43b753703b2a835fc3.tar.bz2 linux-fe87789cd437378e7cf72c43b753703b2a835fc3.zip |
thermal: exynos: add get_th_reg() helper
Factor out code for preparing threshold register value from
exynos_tmu_initialize() into get_th_reg().
This is a preparation for introducing per-SoC type tmu_initialize
method.
There should be no functional changes caused by this patch.
Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal/samsung/exynos_tmu.c')
-rw-r--r-- | drivers/thermal/samsung/exynos_tmu.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index b0c07151e2eb..6e82fdd860b0 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -158,6 +158,25 @@ static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info) EXYNOS_TMU_TEMP_MASK; } +static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling) +{ + struct exynos_tmu_platform_data *pdata = data->pdata; + int i; + + for (i = 0; i < pdata->non_hw_trigger_levels; i++) { + u8 temp = pdata->trigger_levels[i]; + + if (falling) + temp -= pdata->threshold_falling; + else + threshold &= ~(0xff << 8 * i); + + threshold |= temp_to_code(data, temp) << 8 * i; + } + + return threshold; +} + static int exynos_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); @@ -221,8 +240,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev) } sanitize_temp_error(data, trim_info); - rising_threshold = readl(data->base + reg->threshold_th0); - if (data->soc == SOC_ARCH_EXYNOS4210) { /* Write temperature code for threshold */ threshold_code = temp_to_code(data, pdata->threshold); @@ -235,18 +252,10 @@ static int exynos_tmu_initialize(struct platform_device *pdev) exynos_tmu_clear_irqs(data); } else { /* Write temperature code for rising and falling threshold */ - for (i = 0; i < pdata->non_hw_trigger_levels; i++) { - threshold_code = temp_to_code(data, - pdata->trigger_levels[i]); - rising_threshold &= ~(0xff << 8 * i); - rising_threshold |= threshold_code << 8 * i; - if (data->soc != SOC_ARCH_EXYNOS5440) { - threshold_code = temp_to_code(data, - pdata->trigger_levels[i] - - pdata->threshold_falling); - falling_threshold |= threshold_code << 8 * i; - } - } + rising_threshold = readl(data->base + reg->threshold_th0); + rising_threshold = get_th_reg(data, rising_threshold, false); + if (data->soc != SOC_ARCH_EXYNOS5440) + falling_threshold = get_th_reg(data, 0, true); writel(rising_threshold, data->base + reg->threshold_th0); |