[PATCH] iio: adc: stm32: fix minimum sampling time values

[Fabrice Gasnier <fabrice.gasnier@foss.st.com>]

From: Cheick Traore <cheick.traore-ext@st.com>

- On stm32mp15: vddcpu and vddq_ddr are not connected to internal
channel, so their sampling time shouldn't be set.

- On stm32mp13: vddcpu and vddq_ddr are connected to internal channels
and the value for vddcore was not correct. Values from the datasheet
are 1us (e.g. 1000ns) for ts_vddcore, ts_vddcpu and ts_vddq_ddr.

Fixes: 7cb2303dd024 ("iio: adc: stm32: manage min sampling time on all internal channels")
Cc: stable@vger.kernel.org
Signed-off-by: Cheick Traore <cheick.traore-ext@st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
---
 drivers/iio/adc/stm32-adc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index 90f0e257e6d1..b024326775ae 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -2734,7 +2734,7 @@ static const struct stm32_adc_cfg stm32h7_adc_cfg = {
 	.set_ovs = stm32h7_adc_set_ovs,
 };
 
-static const unsigned int stm32_adc_min_ts_mp1[] = { 100, 100, 100, 4300, 9800 };
+static const unsigned int stm32_adc_min_ts_mp1[] = { 100, 0, 0, 4300, 9800 };
 static_assert(ARRAY_SIZE(stm32_adc_min_ts_mp1) == STM32_ADC_INT_CH_NB);
 
 static const struct stm32_adc_cfg stm32mp1_adc_cfg = {
@@ -2756,7 +2756,7 @@ static const struct stm32_adc_cfg stm32mp1_adc_cfg = {
 	.set_ovs = stm32h7_adc_set_ovs,
 };
 
-static const unsigned int stm32_adc_min_ts_mp13[] = { 100, 0, 0, 4300, 9800 };
+static const unsigned int stm32_adc_min_ts_mp13[] = { 1000, 1000, 1000, 4300, 9800 };
 static_assert(ARRAY_SIZE(stm32_adc_min_ts_mp13) == STM32_ADC_INT_CH_NB);
 
 static const struct stm32_adc_cfg stm32mp13_adc_cfg = {

---
base-commit: 182c47735554925da9605dc9dd90a8c15a1bbae5
change-id: 20260924-adc-fix-sampling-526f0f26829b

Best regards,
--  
Fabrice Gasnier <fabrice.gasnier@foss.st.com>