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thermal/drivers/imx8mm: Enable ADC when enabling monitor 

[ Upstream commit 3de89d8842 ]

The i.MX 8MP has a ADC_PD bit in the TMU_TER register that controls the
operating mode of the ADC:
* 0 means normal operating mode
* 1 means power down mode

When enabling/disabling the TMU, the ADC operating mode must be set
accordingly.

i.MX 8M Mini & Nano are lacking this bit.

Signed-off-by: Paul Gerber <Paul.Gerber@tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Fixes: 2b8f1f0337 ("thermal: imx8mm: Add i.MX8MP support")
Link: https://lore.kernel.org/r/20211122114225.196280-1-alexander.stein@ew.tq-group.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Paul Gerber 2021-11-22 12:42:25 +01:00 committed by Greg Kroah-Hartman
parent 68bf3b2f95
commit 4c12feec2d
1 changed files with 3 additions and 0 deletions
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3
drivers/thermal/imx8mm_thermal.c
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@ -21,6 +21,7 @@
#define TPS 0x4
#define TRITSR 0x20 /* TMU immediate temp */
#define TER_ADC_PD BIT(30)
#define TER_EN BIT(31)
#define TRITSR_TEMP0_VAL_MASK 0xff
#define TRITSR_TEMP1_VAL_MASK 0xff0000
@ -113,6 +114,8 @@ static void imx8mm_tmu_enable(struct imx8mm_tmu *tmu, bool enable)
val = readl_relaxed(tmu->base + TER);
val = enable ? (val | TER_EN) : (val & ~TER_EN);
if (tmu->socdata->version == TMU_VER2)
val = enable ? (val & ~TER_ADC_PD) : (val | TER_ADC_PD);
writel_relaxed(val, tmu->base + TER);
}