linux-kernel - [PATCH 5.4 44/60] iio: adc: stm32: fix maximum clock rate for stm32mp15x

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Date:   Mon, 27 Jun 2022 13:21:55 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Olivier Moysan <olivier.moysan@...s.st.com>,
        Fabrice Gasnier <fabrice.gasnier@...s.st.com>,
        Stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 5.4 44/60] iio: adc: stm32: fix maximum clock rate for stm32mp15x

From: Olivier Moysan <olivier.moysan@...s.st.com>

commit 990539486e7e311fb5dab1bf4d85d1a8973ae644 upstream.

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 <olivier.moysan@...s.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
Link: https://lore.kernel.org/r/20220609095234.375925-1-olivier.moysan@foss.st.com
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/iio/adc/stm32-adc-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -815,7 +815,7 @@ static const struct stm32_adc_priv_cfg s
 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,
 };