From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Prabhakar <prabhakar.csengg@gmail.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
linux-rtc@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Biju Das <biju.das.jz@bp.renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@renesas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH 08/12] rtc: rzn1: Dynamically calculate synchronization delay based on clock rate
Date: Wed, 17 Jun 2026 12:58:44 +0200 [thread overview]
Message-ID: <ajJ95P-jxChrTY9w@shikoro> (raw)
In-Reply-To: <20260615154805.1619693-9-prabhakar.mahadev-lad.rj@bp.renesas.com>
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As mentioned in another thread:
> drivers/rtc/rtc-rzn1.c | 19 ++++++++++++++-----
> 1 file changed, 14 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/rtc/rtc-rzn1.c b/drivers/rtc/rtc-rzn1.c
> index 06339adae71f..bc6af59744e4 100644
> --- a/drivers/rtc/rtc-rzn1.c
> +++ b/drivers/rtc/rtc-rzn1.c
> @@ -71,6 +71,7 @@ struct rzn1_rtc {
> */
> spinlock_t ctl1_access_lock;
> struct rtc_time tm_alarm;
> + unsigned long sync_time;
> int alarm_irq;
> int sec_irq;
> bool alarm_enabled;
rate = 32768 here...
> + rtc->sync_time = DIV_ROUND_UP(2 * NSEC_PER_MSEC, rate);
> +
> }
... and move this to the main body of the function.
Then, we should have all values always initialized.
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next prev parent reply other threads:[~2026-06-17 10:58 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-15 15:47 [PATCH 00/12] Add RTC support for Renesas RZ/T2H and RZ/N2H SoCs Prabhakar
2026-06-15 15:47 ` [PATCH 01/12] dt-bindings: rtc: renesas,rzn1-rtc: Add RZ/T2H and RZ/N2H support Prabhakar
2026-06-15 16:22 ` Conor Dooley
2026-06-17 9:38 ` Wolfram Sang
2026-06-15 15:47 ` [PATCH 02/12] rtc: rzn1: Handle EPROBE_DEFER for optional pps interrupt Prabhakar
2026-06-17 9:55 ` Wolfram Sang
2026-06-15 15:47 ` [PATCH 03/12] rtc: rzn1: Fix malformed MODULE_AUTHOR string Prabhakar
2026-06-17 7:19 ` Geert Uytterhoeven
2026-06-17 9:55 ` Wolfram Sang
2026-06-15 15:47 ` [PATCH 04/12] rtc: Kconfig: Broaden RTC_DRV_RZN1 dependency to ARCH_RENESAS Prabhakar
2026-06-17 9:57 ` Wolfram Sang
2026-06-15 15:47 ` [PATCH 05/12] rtc: rzn1: Add system suspend/resume support and wakeup capability Prabhakar
2026-06-17 10:02 ` Wolfram Sang
2026-06-15 15:47 ` [PATCH 06/12] rtc: rzn1: Sort headers alphabetically Prabhakar
2026-06-17 7:22 ` Geert Uytterhoeven
2026-06-17 10:04 ` Wolfram Sang
2026-06-15 15:48 ` [PATCH 07/12] rtc: rzn1: fix alarm range check truncation on 32-bit systems Prabhakar
2026-06-17 7:29 ` Geert Uytterhoeven
2026-06-17 10:49 ` Wolfram Sang
2026-06-17 10:57 ` Wolfram Sang
2026-06-15 15:48 ` [PATCH 08/12] rtc: rzn1: Dynamically calculate synchronization delay based on clock rate Prabhakar
2026-06-17 10:58 ` Wolfram Sang [this message]
2026-06-15 15:48 ` [PATCH 09/12] rtc: rzn1: Use temporary variable for struct device Prabhakar
2026-06-17 11:00 ` Wolfram Sang
2026-06-17 11:08 ` Wolfram Sang
2026-06-15 15:48 ` [PATCH 10/12] rtc: rzn1: Consistently use dev_err_probe() Prabhakar
2026-06-17 7:24 ` Geert Uytterhoeven
2026-06-17 11:01 ` Wolfram Sang
2026-06-15 15:48 ` [PATCH 11/12] rtc: rzn1: use FIELD_PREP/FIELD_GET and GENMASK for register access Prabhakar
2026-06-17 11:06 ` Wolfram Sang
2026-06-15 15:48 ` [PATCH 12/12] rtc: rzn1: Add support for Renesas RZ/T2H and RZ/N2H SoCs Prabhakar
2026-06-17 11:10 ` Wolfram Sang
2026-06-17 9:18 ` [PATCH 00/12] Add RTC " Wolfram Sang
2026-06-17 11:12 ` Wolfram Sang
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