linux-kernel - [PATCH v4 0/3] clocksource: imx-sysctr: support i.MX95

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Message-Id: <20240205-imx-sysctr-v4-0-ca5a6e1552e7@nxp.com>
Date: Mon, 05 Feb 2024 11:17:56 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>, 
 Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bai Ping <ping.bai@....com>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>, 
 Marco Felsch <m.felsch@...gutronix.de>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, Peng Fan <peng.fan@....com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 0/3] clocksource: imx-sysctr: support i.MX95

i.MX95 System Counter module control register space is blocked
by SCMI firmware, so we use Read Register space to get the counter.

V2:
  - imx95 is not compatible with the existing hardware, so add a
    seperate entry for i.MX95 in dt-binding.
  - Per Marco's comments, the global variables was removed except
    to_sysctr. And add a new TIMER_OF_DECLARE entry for i.MX95

Signed-off-by: Peng Fan <peng.fan@....com>
---
Changes in v4:
- Add A-b in patch 1
- Include slab.h in patch 2 to fix kernel build failure for i386 compile
test.
- Link to v3: https://lore.kernel.org/r/20240126-imx-sysctr-v3-0-33fe801d5f31@nxp.com

Changes in v3:
- Drop items in patch 1 per Conor's comments
- Link to v2: https://lore.kernel.org/r/20240125-imx-sysctr-v2-0-7332470cd7ae@nxp.com

---
Peng Fan (3):
      dt-bindings: timer: nxp,sysctr-timer: support i.MX95
      clocksource/drivers/imx-sysctr: drop use global variables
      clocksource/drivers/imx-sysctr: support i.MX95

 .../bindings/timer/nxp,sysctr-timer.yaml           |   4 +-
 drivers/clocksource/timer-imx-sysctr.c             | 117 +++++++++++++++------
 2 files changed, 90 insertions(+), 31 deletions(-)
---
base-commit: 01af33cc9894b4489fb68fa35c40e9fe85df63dc
change-id: 20240125-imx-sysctr-3a89a0852376

Best regards,
-- 
Peng Fan <peng.fan@....com>