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

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Date:   Thu, 9 Jun 2022 11:52:34 +0200
From:   Olivier Moysan <olivier.moysan@...s.st.com>
To:     Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Fabrice Gasnier <fabrice.gasnier@...s.st.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Olivier Moysan <olivier.moysan@...s.st.com>,
        Paul Cercueil <paul@...pouillou.net>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>
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 <olivier.moysan@...s.st.com>
---
 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