2022-06-09 10:31:07

by Olivier MOYSAN

Subject: [PATCH] iio: adc: stm32: fix maximum clock rate for stm32mp15x

Change maximum STM32 ADC input clock rate to 36MHz, as specified
in STM32MP15x datasheets.

Fixes: d58c67d1d851 ("iio: adc: stm32-adc: add support for STM32MP1")

Signed-off-by: Olivier Moysan <[email protected]>
---
drivers/iio/adc/stm32-adc-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index 142656232157..ce1a63a82034 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -805,7 +805,7 @@ static const struct stm32_adc_priv_cfg stm32h7_adc_priv_cfg = {
static const struct stm32_adc_priv_cfg stm32mp1_adc_priv_cfg = {
.regs = &stm32h7_adc_common_regs,
.clk_sel = stm32h7_adc_clk_sel,
- .max_clk_rate_hz = 40000000,
+ .max_clk_rate_hz = 36000000,
.has_syscfg = HAS_VBOOSTER | HAS_ANASWVDD,
.num_irqs = 2,
};
--
2.25.1

2022-06-09 13:20:23

by Fabrice Gasnier

Subject: Re: [PATCH] iio: adc: stm32: fix maximum clock rate for stm32mp15x

On 6/9/22 11:52, Olivier Moysan wrote:
> Change maximum STM32 ADC input clock rate to 36MHz, as specified
> in STM32MP15x datasheets.
>
> Fixes: d58c67d1d851 ("iio: adc: stm32-adc: add support for STM32MP1")
>
> Signed-off-by: Olivier Moysan <[email protected]>

Hi Olivier,

You can add my:
Reviewed-by: Fabrice Gasnier <[email protected]>

Thanks,
Fabrice
> ---
> drivers/iio/adc/stm32-adc-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
> index 142656232157..ce1a63a82034 100644
> --- a/drivers/iio/adc/stm32-adc-core.c
> +++ b/drivers/iio/adc/stm32-adc-core.c
> @@ -805,7 +805,7 @@ static const struct stm32_adc_priv_cfg stm32h7_adc_priv_cfg = {
> static const struct stm32_adc_priv_cfg stm32mp1_adc_priv_cfg = {
> .regs = &stm32h7_adc_common_regs,
> .clk_sel = stm32h7_adc_clk_sel,
> - .max_clk_rate_hz = 40000000,
> + .max_clk_rate_hz = 36000000,
> .has_syscfg = HAS_VBOOSTER | HAS_ANASWVDD,
> .num_irqs = 2,
> };

2022-06-11 16:17:05

by Jonathan Cameron

Subject: Re: [PATCH] iio: adc: stm32: fix maximum clock rate for stm32mp15x

On Thu, 9 Jun 2022 11:52:34 +0200
Olivier Moysan <[email protected]> wrote:

> Change maximum STM32 ADC input clock rate to 36MHz, as specified
> in STM32MP15x datasheets.
>
> Fixes: d58c67d1d851 ("iio: adc: stm32-adc: add support for STM32MP1")
No gap here as per the other patch. Fixed up whilst applying and marked
for stable.

Thanks,

Jonathan

>
> Signed-off-by: Olivier Moysan <[email protected]>
> ---
> drivers/iio/adc/stm32-adc-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
> index 142656232157..ce1a63a82034 100644
> --- a/drivers/iio/adc/stm32-adc-core.c
> +++ b/drivers/iio/adc/stm32-adc-core.c
> @@ -805,7 +805,7 @@ static const struct stm32_adc_priv_cfg stm32h7_adc_priv_cfg = {
> static const struct stm32_adc_priv_cfg stm32mp1_adc_priv_cfg = {
> .regs = &stm32h7_adc_common_regs,
> .clk_sel = stm32h7_adc_clk_sel,
> - .max_clk_rate_hz = 40000000,
> + .max_clk_rate_hz = 36000000,
> .has_syscfg = HAS_VBOOSTER | HAS_ANASWVDD,
> .num_irqs = 2,
> };