From: "André Draszik" <andre.draszik@linaro.org>
To: Krzysztof Kozlowski <krzk@kernel.org>, Lee Jones <lee@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: "Peter Griffin" <peter.griffin@linaro.org>,
"Tudor Ambarus" <tudor.ambarus@linaro.org>,
"Will McVicker" <willmcvicker@google.com>,
"Juan Yescas" <jyescas@google.com>,
"Douglas Anderson" <dianders@chromium.org>,
kernel-team@android.com,
"Kaustabh Chakraborty" <kauschluss@disroot.org>,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-rtc@vger.kernel.org,
"André Draszik" <andre.draszik@linaro.org>
Subject: [PATCH v2 0/3] Samsung mfd/rtc driver alarm IRQ simplification
Date: Thu, 20 Nov 2025 14:38:03 +0000 [thread overview]
Message-ID: <20251120-s5m-alarm-v2-0-cc15f0e32161@linaro.org> (raw)
Hi,
With the attached patches the Samsung s5m RTC driver is simplified a
little bit with regards to alarm IRQ acquisition.
The end result is that instead of having a list of IRQ numbers for each
variant (and a BUILD_BUG_ON() to ensure consistency), the RTC driver
queries the 'alarm' platform resource from the parent (mfd cell).
Additionally, we can drop a now-useless field from runtime data,
reducing memory consumption slightly.
The attached patches must be applied in-order as patch 2 without 1 will
fail at runtime, and patch 3 without 2 will fail at build time. I would
expect them all to go via the MFD tree. Alternatively, they could be
applied individually to the respective kernel trees during multiple
kernel release cycles, but that seems a needless complication and
delay.
Signed-off-by: André Draszik <andre.draszik@linaro.org>
---
Changes in v2:
- rebase on top of https://lore.kernel.org/r/20251114-s2mpg10-chained-irq-v1-1-34ddfa49c4cd@linaro.org
- return struct regmap_irq_chip_data * in sec_irq_init() (Lee)
- collect tags
- Link to v1: https://lore.kernel.org/r/20251114-s5m-alarm-v1-0-c9b3bebae65f@linaro.org
---
André Draszik (3):
mfd: sec: add rtc alarm IRQ as platform device resource
rtc: s5m: query platform device IRQ resource for alarm IRQ
mfd: sec: drop now unused struct sec_pmic_dev::irq_data
drivers/mfd/sec-common.c | 45 ++++++++++++++++++++--------
drivers/mfd/sec-core.h | 2 +-
drivers/mfd/sec-irq.c | 63 ++++++++++++++++++----------------------
drivers/rtc/rtc-s5m.c | 21 +++++---------
include/linux/mfd/samsung/core.h | 1 -
5 files changed, 71 insertions(+), 61 deletions(-)
---
base-commit: 9ad5de6d54f306b2bbf7ceb27e67a60c58a71224
change-id: 20251114-s5m-alarm-3de705ea53ce
Best regards,
--
André Draszik <andre.draszik@linaro.org>
next reply other threads:[~2025-11-20 14:38 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-20 14:38 André Draszik [this message]
2025-11-20 14:38 ` [PATCH v2 1/3] mfd: sec: add rtc alarm IRQ as platform device resource André Draszik
2025-11-20 14:38 ` [PATCH v2 2/3] rtc: s5m: query platform device IRQ resource for alarm IRQ André Draszik
2025-11-20 14:38 ` [PATCH v2 3/3] mfd: sec: drop now unused struct sec_pmic_dev::irq_data André Draszik
2025-11-26 11:29 ` [PATCH v2 0/3] Samsung mfd/rtc driver alarm IRQ simplification Lee Jones
2025-11-26 12:30 ` André Draszik
2025-11-26 14:04 ` Lee Jones
2025-12-16 16:20 ` Lee Jones
2026-01-20 15:49 ` Lee Jones
2026-01-20 15:52 ` Lee Jones
2026-01-20 15:58 ` Mark Brown
2026-01-20 17:24 ` Lee Jones
2026-01-20 17:28 ` Mark Brown
2026-01-21 8:48 ` Lee Jones
2026-01-21 3:23 ` Konstantin Ryabitsev
2026-01-21 8:44 ` Lee Jones
2026-01-22 13:28 ` [GIT PULL] Immutable branch between MFD and RTC due for the v6.20 merge window Lee Jones
2026-01-22 13:29 ` Lee Jones
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