From patchwork Wed Apr 24 17:37:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 1927294 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=HDG0W1y7; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:4601:e00::3; helo=am.mirrors.kernel.org; envelope-from=linux-rtc+bounces-1059-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [IPv6:2604:1380:4601:e00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VPmRk1Ph2z1yP2 for ; Thu, 25 Apr 2024 03:38:26 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id D03A71F2832C for ; Wed, 24 Apr 2024 17:38:22 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 19F9E16C848; Wed, 24 Apr 2024 17:38:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HDG0W1y7" X-Original-To: linux-rtc@vger.kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DCEF515B55C; Wed, 24 Apr 2024 17:38:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713980300; cv=none; b=U5JtoKf/DQlYa094Xe7ebmcMmJzpG+lVD+sQmQ4JdTtxwJf6IZDFaEGopbUf94SOTuRotej6dGoQhmRBlsvYwcrAiYaV/zTEggKFxOcQBi1Len2wsFKd2n4i7jn03TTGtxHpqhsA7n5cJCjiZ6/2UkqBtDSE2JilDJV8LdE0WuE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713980300; c=relaxed/simple; bh=aod6ewur68dhk71qakXSy0qZ7PztmoQeNVY9RZWrBCU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=FlniCpuocnP6KHl34KnMZZaAiXfxWPoTEOjlpguTXRf1lQq9X/s3ODImOqSEmTHKIhl720nDATQM8FEow+Mylk1pnZ/66mHfyQVJs7aAT4U7ZUYfCjlBS6qXK0irrjNy6quAZKWWm5qmVLSXCUKa71nn5xHdoLFknHAg86VbHHQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HDG0W1y7; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84AC5C113CD; Wed, 24 Apr 2024 17:38:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713980299; bh=aod6ewur68dhk71qakXSy0qZ7PztmoQeNVY9RZWrBCU=; h=From:List-Id:To:Cc:Subject:Date:From; b=HDG0W1y7dJs8jROaJ/vATkjVSzyAjoCUm+TErmO1j8gYqoSjV/n+N1UdArZSqTT0S Yy4S0CF2xmBBySJ5CNvdZ4gN3awJ/zPdFTxFL0id+DjOgaHTtdRwFSCFz/SL0Htd84 cR15vC+wO9i1c1Gvr1YZpDGGUCRLdwcKC2LkXN88Z/xH+Vc/hgfj6M5ENg24b2sLP5 /AFXu7OnXn00jivZ3aB7U3fBOSwmZvYCRVjSPhYRwX92KN8GmI6IHCspwjRa6zJkxu eFS+y3XWM0+Ilq6XsmipaFi6vxXWDliZV6+2RrJQig9WIR8TcR2J+YTwOfFqzWrULK SccO/07dU2yaw== From: =?utf-8?q?Marek_Beh=C3=BAn?= To: Gregory CLEMENT , Arnd Bergmann , soc@kernel.org, arm@kernel.org, Andy Shevchenko , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Alessandro Zummo , Alexandre Belloni , Bartosz Golaszewski , Christophe JAILLET , Dan Carpenter , devicetree@vger.kernel.org, Greg Kroah-Hartman , Guenter Roeck , Herbert Xu , Krzysztof Kozlowski , Linus Walleij , linux-crypto@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org, Olivia Mackall , Rob Herring , Wim Van Sebroeck Cc: =?utf-8?q?Marek_Beh=C3=BAn?= , Andrew Lunn , Conor Dooley , Krzysztof Kozlowski , Rob Herring , Sebastian Hesselbarth , =?utf-8?q?Uwe_Klei?= =?utf-8?q?ne-K=C3=B6nig?= Subject: [PATCH v7 0/9] Turris Omnia MCU driver Date: Wed, 24 Apr 2024 19:37:59 +0200 Message-ID: <20240424173809.7214-1-kabel@kernel.org> X-Mailer: git-send-email 2.43.2 Precedence: bulk X-Mailing-List: linux-rtc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hello Andy, Hans, Ilpo, Arnd, Gregory, and others, this is v7 of the series adding Turris Omnia MCU driver. This series depends on the immutable branch between LEDs and locking, introducing devm_mutex_init(), see the PR https://lore.kernel.org/linux-leds/20240412084616.GR2399047@google.com/ See also cover letters for v1, v2, v3, v4, v5 and v6: https://patchwork.kernel.org/project/linux-soc/cover/20230823161012.6986-1-kabel@kernel.org/ https://patchwork.kernel.org/project/linux-soc/cover/20230919103815.16818-1-kabel@kernel.org/ https://patchwork.kernel.org/project/linux-soc/cover/20231023143130.11602-1-kabel@kernel.org/ https://patchwork.kernel.org/project/linux-soc/cover/20231026161803.16750-1-kabel@kernel.org/ https://patchwork.kernel.org/project/linux-soc/cover/20240323164359.21642-1-kabel@kernel.org/ https://patchwork.kernel.org/project/linux-soc/cover/20240418121116.22184-1-kabel@kernel.org/ Changes since v6: - moved the DT binding from arm/cznic,turris-omnia-mcu.yaml to firmware/cznic,turris-omnia-mcu.yaml, as suggested by Conor Dooley (patch 1) - dropped the devm-helpers.h additions, for the reasons see https://lore.kernel.org/soc/20240423184346.37eb0915@thinkpad/ - use gpiod_to_irq(gpiochip_get_desc(...)) instead of irq_create_mapping(), as suggested by Andy Shevchenko (patches 6 and 7) - added a dummy read of TRNG entropy when registering TRNG, in case someone cleared the TRNG interrupt before probing the driver, but did not read the entropy (the MCU won't send a new TRNG interrupt if the entropy is not collected) (patch 6) - fixed a bug in TRNG probing, wherein if the Marek Behún (9): dt-bindings: arm: add cznic,turris-omnia-mcu binding platform: cznic: Add preliminary support for Turris Omnia MCU platform: cznic: turris-omnia-mcu: Add support for MCU connected GPIOs platform: cznic: turris-omnia-mcu: Add support for poweroff and wakeup platform: cznic: turris-omnia-mcu: Add support for MCU watchdog platform: cznic: turris-omnia-mcu: Add support for MCU provided TRNG platform: cznic: turris-omnia-mcu: Add support for digital message signing via debugfs ARM: dts: turris-omnia: Add MCU system-controller node ARM: dts: turris-omnia: Add GPIO key node for front button .../ABI/testing/debugfs-turris-omnia-mcu | 13 + .../sysfs-bus-i2c-devices-turris-omnia-mcu | 126 ++ .../firmware/cznic,turris-omnia-mcu.yaml | 86 ++ MAINTAINERS | 5 + .../dts/marvell/armada-385-turris-omnia.dts | 35 +- drivers/platform/Kconfig | 2 + drivers/platform/Makefile | 1 + drivers/platform/cznic/Kconfig | 51 + drivers/platform/cznic/Makefile | 9 + .../platform/cznic/turris-omnia-mcu-base.c | 439 +++++++ .../platform/cznic/turris-omnia-mcu-debugfs.c | 216 ++++ .../platform/cznic/turris-omnia-mcu-gpio.c | 1047 +++++++++++++++++ .../cznic/turris-omnia-mcu-sys-off-wakeup.c | 258 ++++ .../platform/cznic/turris-omnia-mcu-trng.c | 109 ++ .../cznic/turris-omnia-mcu-watchdog.c | 123 ++ drivers/platform/cznic/turris-omnia-mcu.h | 188 +++ include/linux/turris-omnia-mcu-interface.h | 249 ++++ 17 files changed, 2956 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/debugfs-turris-omnia-mcu create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu create mode 100644 Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml create mode 100644 drivers/platform/cznic/Kconfig create mode 100644 drivers/platform/cznic/Makefile create mode 100644 drivers/platform/cznic/turris-omnia-mcu-base.c create mode 100644 drivers/platform/cznic/turris-omnia-mcu-debugfs.c create mode 100644 drivers/platform/cznic/turris-omnia-mcu-gpio.c create mode 100644 drivers/platform/cznic/turris-omnia-mcu-sys-off-wakeup.c create mode 100644 drivers/platform/cznic/turris-omnia-mcu-trng.c create mode 100644 drivers/platform/cznic/turris-omnia-mcu-watchdog.c create mode 100644 drivers/platform/cznic/turris-omnia-mcu.h create mode 100644 include/linux/turris-omnia-mcu-interface.h