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From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Nicolas Ferre <nicolas.ferre@microchip.com>,
	Boris Brezillon <boris.brezillon@free-electrons.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Alexandre Belloni <alexandre.belloni@free-electrons.com>
Subject: [PATCH v2 5/6] ARM: configs: at91: sama5: unselect ATMEL_PIT
Date: Fri,  5 Jan 2018 15:30:05 +0100	[thread overview]
Message-ID: <20180105143006.5369-6-alexandre.belloni@free-electrons.com> (raw)
In-Reply-To: <20180105143006.5369-1-alexandre.belloni@free-electrons.com>

The PIT is not required anymore to successfully boot and may actually harm
in case preempt-rt is used because the PIT interrupt is shared.
Disable it so the TCB clocksource is used.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 arch/arm/configs/sama5_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig
index 81594322f3a0..e6b984f18002 100644
--- a/arch/arm/configs/sama5_defconfig
+++ b/arch/arm/configs/sama5_defconfig
@@ -198,6 +198,7 @@ CONFIG_RTC_DRV_AT91RM9200=y
 CONFIG_DMADEVICES=y
 CONFIG_AT_HDMAC=y
 CONFIG_AT_XDMAC=y
+# CONFIG_ATMEL_PIT is not set
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_IIO=y
 CONFIG_AT91_ADC=y
-- 
2.15.1

  parent reply	other threads:[~2018-01-05 14:30 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-05 14:30 [PATCH v2 0/6] clocksource: rework Atmel TCB timer driver Alexandre Belloni
2018-01-05 14:30 ` [PATCH v2 1/6] ARM: at91: add TCB registers definitions Alexandre Belloni
2018-01-07 11:59   ` Philippe Ombredanne
2018-01-05 14:30 ` [PATCH v2 2/6] clocksource/drivers: Add a new driver for the Atmel ARM TC blocks Alexandre Belloni
2018-01-05 14:30 ` [PATCH v2 3/6] clocksource/drivers: atmel-pit: allow unselecting ATMEL_PIT Alexandre Belloni
2018-01-07 18:07   ` Daniel Lezcano
2018-01-07 18:44     ` Alexandre Belloni
2018-01-08  7:23       ` Daniel Lezcano
2018-01-08  8:22         ` Boris Brezillon
2018-01-08  8:53           ` Daniel Lezcano
2018-01-05 14:30 ` [PATCH v2 4/6] ARM: configs: at91: use new TCB timer driver Alexandre Belloni
2018-01-05 14:30 ` Alexandre Belloni [this message]
2018-01-05 14:30 ` [PATCH v2 6/6] ARM: configs: at91: at91_dt unselect ATMEL_PIT Alexandre Belloni

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