From: Eugen Hristev <eugen.hristev@microchip.com>
To: <jic23@kernel.org>, <linux-iio@vger.kernel.org>,
<devicetree@vger.kernel.org>, <nicolas.ferre@microchip.com>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <robh+dt@kernel.org>,
<ludovic.desroches@microchip.com>,
Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH v3 02/10] iio: adc: at91-sama5d2_adc: initialize hardware after clock is started
Date: Wed, 1 Sep 2021 15:30:05 +0300 [thread overview]
Message-ID: <20210901123013.329792-3-eugen.hristev@microchip.com> (raw)
In-Reply-To: <20210901123013.329792-1-eugen.hristev@microchip.com>
The hw_init hardware init call must happen after the clock is prepared and
enabled. Otherwise, writing to the registers might lead to a block or
external abort.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
drivers/iio/adc/at91-sama5d2_adc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index ea5ca163d879..1f4d461c2c18 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -1833,12 +1833,12 @@ static int at91_adc_probe(struct platform_device *pdev)
goto vref_disable;
}
- at91_adc_hw_init(indio_dev);
-
ret = clk_prepare_enable(st->per_clk);
if (ret)
goto vref_disable;
+ at91_adc_hw_init(indio_dev);
+
platform_set_drvdata(pdev, indio_dev);
ret = at91_adc_buffer_and_trigger_init(&pdev->dev, indio_dev);
--
2.25.1
next prev parent reply other threads:[~2021-09-01 12:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 12:30 [PATCH v3 00/10] iio: adc: at91-sama5d2_adc: add support for sama7g5 Eugen Hristev
2021-09-01 12:30 ` [PATCH v3 01/10] dt-bindings: iio: adc: at91-sama5d2: add compatible for sama7g5-adc Eugen Hristev
2021-09-01 12:30 ` Eugen Hristev [this message]
2021-09-01 12:30 ` [PATCH v3 03/10] iio: adc: at91-sama5d2_adc: remove unused definition Eugen Hristev
2021-09-01 12:30 ` [PATCH v3 04/10] iio: adc: at91-sama5d2_adc: convert to platform specific data structures Eugen Hristev
2021-09-01 14:31 ` Eugen.Hristev
2021-09-05 10:24 ` Jonathan Cameron
2021-09-01 12:30 ` [PATCH v3 05/10] iio: adc: at91-sama5d2_adc: add support for separate end of conversion registers Eugen Hristev
2021-09-01 12:30 ` [PATCH v3 06/10] iio: adc: at91-sama5d2_adc: add helper for COR register Eugen Hristev
2021-09-01 12:30 ` [PATCH v3 07/10] iio: adc: at91-sama5d2_adc: add support for sama7g5 device Eugen Hristev
2021-09-01 12:30 ` [PATCH v3 08/10] iio: adc: at91-sama5d2_adc: update copyright and authors information Eugen Hristev
2021-09-01 12:30 ` [PATCH v3 09/10] ARM: dts: at91: sama7g5: add node for the ADC Eugen Hristev
2021-09-15 9:16 ` Nicolas Ferre
2021-09-01 12:30 ` [PATCH v3 10/10] ARM: dts: at91: sama7g5ek: enable ADC on the board Eugen Hristev
2021-09-15 9:17 ` Nicolas Ferre
2021-09-05 10:28 ` [PATCH v3 00/10] iio: adc: at91-sama5d2_adc: add support for sama7g5 Jonathan Cameron
2021-09-15 9:16 ` Nicolas Ferre
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