From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>,
tglx@linutronix.de
Cc: S32@nxp.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 04/20] clocksource/drivers/vf_pit: Rework the base address usage
Date: Thu, 24 Jul 2025 19:29:25 +0200 [thread overview]
Message-ID: <c51c45ef-e769-406f-ac2f-53c90bc78d8d@linaro.org> (raw)
In-Reply-To: <6b478a82-5087-44b6-b2e6-acb494fe1e22@oss.nxp.com>
On 07/07/2025 14:03, Ghennadi Procopciuc wrote:
> On 7/5/2025 7:01 PM, Daniel Lezcano wrote:
> [...]
>
>> -static int __init pit_clockevent_init(struct pit_timer *pit, unsigned long rate, int irq)
>> +static int __init pit_clockevent_init(struct pit_timer *pit, void __iomem *base,
>> + unsigned long rate, int irq)
>> {
>> + /*
>> + * PIT0 and PIT1 can be chained to build a 64-bit timer, so
>> + * choose PIT3 as clockevent and leave PIT0 and PIT1 unused
>> + * for anyone else who needs them.
>> + */
>> + pit->clkevt_base = base + PIT_CH(3);
>> +
>
> This description is somewhat misleading, as it refers to PIT instances, whereas the code actually operates on PIT channels 0 and 1.
>
Actually it is what we have already in the driver, it is just moved
around. I'll take the opportunity to change the content if it matters.
What about:
"The channels 0 and 1 can be chained to build a 64-bit timer. Let's use
the channel 3 as a clockevent and leave the channels 0 and 1 unused for
anyone else who needs them."
?
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next prev parent reply other threads:[~2025-07-24 17:29 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-05 16:01 [PATCH 01/20] clocksource/drivers/vf-pit: Replace raw_readl/writel to reald/writel Daniel Lezcano
2025-07-05 16:01 ` [PATCH 02/20] clocksource/drivers/vf_pit: Add COMPILE_TEST option Daniel Lezcano
2025-07-05 16:01 ` [PATCH 03/20] clocksource/drivers/vf_pit: Set the scene for multiple timers Daniel Lezcano
2025-07-07 12:04 ` Ghennadi Procopciuc
2025-07-05 16:01 ` [PATCH 04/20] clocksource/drivers/vf_pit: Rework the base address usage Daniel Lezcano
2025-07-07 12:03 ` Ghennadi Procopciuc
2025-07-24 17:29 ` Daniel Lezcano [this message]
2025-07-25 5:10 ` Ghennadi Procopciuc
2025-07-05 16:01 ` [PATCH 05/20] clocksource/drivers/vf_pit: Pass the cpu number as parameter Daniel Lezcano
2025-07-07 9:33 ` Ghennadi Procopciuc
2025-07-24 17:30 ` Daniel Lezcano
2025-07-05 16:01 ` [PATCH 06/20] clocksource/drivers/vf_pit: Encapsulate the initialization of the cycles_per_jiffy Daniel Lezcano
2025-07-05 16:01 ` [PATCH 07/20] clocksource/drivers/vf-pit: Allocate the struct timer at init time Daniel Lezcano
2025-07-05 16:01 ` [PATCH 08/20] clocksource/drivers/vf-pit: Convert raw values to BIT macros Daniel Lezcano
2025-07-05 16:01 ` [PATCH 09/20] clocksource/drivers/vf-pit: Register the clocksource from the driver Daniel Lezcano
2025-07-07 12:02 ` Ghennadi Procopciuc
2025-07-26 19:37 ` Daniel Lezcano
2025-07-05 16:01 ` [PATCH 10/20] clocksource/drivers/vf-pit: Encapsulate the macros Daniel Lezcano
2025-07-07 12:03 ` Ghennadi Procopciuc
2025-07-28 8:35 ` Daniel Lezcano
2025-07-05 16:01 ` [PATCH 11/20] clocksource/drivers/vf-pit: Encapsulate the PTLCVAL macro Daniel Lezcano
2025-07-05 16:01 ` [PATCH 12/20] clocksource/drivers/vf-pit: Use the node name for the interrupt and timer names Daniel Lezcano
2025-07-25 5:12 ` Ghennadi Procopciuc
2025-07-05 16:01 ` [PATCH 13/20] clocksource/drivers/vf-pit: Encapsulate clocksource enable / disable Daniel Lezcano
2025-07-05 16:01 ` [PATCH 14/20] clocksource/drivers/vf-pit: Enable and disable module on error Daniel Lezcano
2025-07-05 16:01 ` [PATCH 15/20] clocksource/drivers/vf-pit: Encapsulate set counter function Daniel Lezcano
2025-07-05 16:01 ` [PATCH 16/20] clocksource/drivers/vf-pit: Consolidate calls to pit_*_disable/enable Daniel Lezcano
2025-07-07 10:28 ` Ghennadi Procopciuc
2025-07-05 16:01 ` [PATCH 17/20] clocksource/drivers/vf-pit: Unify the function name for irq ack Daniel Lezcano
2025-07-05 16:01 ` [PATCH 18/20] clocksource/drivers/pit: Rename the VF PIT to NXP PIT Daniel Lezcano
2025-07-05 16:01 ` [PATCH 19/20] clocksource/drivers/nxp-pit: Add NXP Automotive s32g2 / s32g3 support Daniel Lezcano
2025-07-06 22:13 ` kernel test robot
2025-07-07 12:02 ` Ghennadi Procopciuc
2025-07-28 8:31 ` Daniel Lezcano
2025-07-05 16:01 ` [PATCH 20/20] dt: bindings: fsl,vf610-pit: Add compatible for s32g2 and s32g3 Daniel Lezcano
2025-07-08 17:27 ` Rob Herring
2025-07-07 9:11 ` [PATCH 01/20] clocksource/drivers/vf-pit: Replace raw_readl/writel to reald/writel Ghennadi Procopciuc
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