From: Georgi Vlaev <g-vlaev@ti.com>
To: Nishanth Menon <nm@ti.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Alessandro Zummo <a.zummo@towertech.it>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-rtc@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Vignesh Raghavendra <vigneshr@ti.com>, Andrew Davis <afd@ti.com>
Subject: Re: [PATCH V4 2/2] rtc: Introduce ti-k3-rtc
Date: Fri, 24 Jun 2022 16:01:28 +0300 [thread overview]
Message-ID: <YrW1qLhha8VKQ5qV@jti> (raw)
In-Reply-To: <20220623170808.20998-3-nm@ti.com>
Hi,
On Thu, Jun 23, 2022 at 12:08:08PM -0500, Nishanth Menon wrote:
> Introduce support for Texas Instruments Real Time Clock controller on
> newer K3 family of SoCs such as AM62x.
>
> The hardware module that is being supported is the "digital only"
> version which doesn't have capability of external wakeup sources and
> external power backup. However, for many practical applications, this
> should suffice as RTC is operational across low power sequences.
>
> The hardware block by itself is split into two distinct domains
> internally to further reduce the power consumption with the actual
> counter block and comparators clocked off a 32k clock source (which
> based on SoC integration can be sourced by an external crystal) and an
> register interface block which is driven by the bus clock. While optimal
> from power perspective, it does create some complicated synchronizations
> and sequences that one must be wary of in the driver handling.
>
> Acked-by: Andrew Davis <afd@ti.com>
> Signed-off-by: Nishanth Menon <nm@ti.com>
> ---
> Changes since V3:
> * Updates for fixing typos, removal of un-necessary prints, sharpen
> usage of ret
Tested on SK-AM62 (AM625).
Tested-by: Georgi Vlaev <g-vlaev@ti.com>
Regards,
Georgi
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next prev parent reply other threads:[~2022-06-24 13:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-23 17:08 [PATCH V4 0/2] rtc: Introduce rtc-ti-k3 Nishanth Menon
2022-06-23 17:08 ` [PATCH V4 1/2] dt-bindings: rtc: Add TI K3 RTC description Nishanth Menon
2022-06-23 17:08 ` [PATCH V4 2/2] rtc: Introduce ti-k3-rtc Nishanth Menon
2022-06-24 13:01 ` Georgi Vlaev [this message]
2022-06-24 19:36 ` [PATCH V4 0/2] rtc: Introduce rtc-ti-k3 Alexandre Belloni
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