lkml.org 
[lkml]   [2022]   [May]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH V2 2/2] rtc: Introduce ti-k3-rtc
From
On 5/10/22 7:25 PM, 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 does'nt 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.
>
> Signed-off-by: Nishanth Menon <nm@ti.com>
> ---
> Changes since V1:
> (Andrew's comments):
> * Moved entirely to regmap fields - except for setting time, which I
> have documented as to why regmap is necessary
> * Dropped the redundant MOD_ALIAS

Isn't regmap fun :)

Acked-by: Andrew Davis <afd@ti.com>

\
 
 \ /
  Last update: 2022-05-11 02:54    [W:0.475 / U:0.440 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site