From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpcmd0986.aruba.it (smtpcmd0986.aruba.it [62.149.156.86]) (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 B0FCA1D9686 for ; Fri, 18 Oct 2024 14:42:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.149.156.86 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729262548; cv=none; b=Y6Rj7e6ytKFEGgl5leyfHb7K5cdaFif9rjJ6y4g79OgDWz+UkG42W8lY9UxWQ1ZCgKvYKdH5PfwIMkMxQT72axrFSu/teeK5qfIT+dwBmFIdzvh/Soj+l/3p53D+A2N+zd4sFZQut3aTUV/BD1KXcDl/VFw2MNNzBKGUE/xMhLY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729262548; c=relaxed/simple; bh=A/724BhEZdtZmOczhOhvy5LRjcTRymfupxHC09g57ys=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=BEoDhaNS316//mmbpvjlx3waC0756WnBNw0P9nhREHNYR9F8CNPBYEwlGod6+KH0YU1PRJFMaRNcYVlT+GGQiBoqhrrsv1IyMAAEZVWy8yKAFsl4qhLTRSiW9/S3N7SRurnKqYYLrIrAM9c9F9cqyGMNqxtxsOaaG/kz0/bYSFY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=enneenne.com; spf=pass smtp.mailfrom=enneenne.com; dkim=pass (2048-bit key) header.d=aruba.it header.i=@aruba.it header.b=dQG4zaIX; arc=none smtp.client-ip=62.149.156.86 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=enneenne.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=enneenne.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=aruba.it header.i=@aruba.it header.b="dQG4zaIX" Received: from polimar.homenet.telecomitalia.it ([79.0.204.227]) by Aruba Outgoing Smtp with ESMTPSA id 1o8JtbKaEcvwV1o8JtrU8d; Fri, 18 Oct 2024 16:39:16 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=aruba.it; s=a1; t=1729262356; bh=A/724BhEZdtZmOczhOhvy5LRjcTRymfupxHC09g57ys=; h=From:To:Subject:Date:MIME-Version; b=dQG4zaIXIZ7g9rCS0Ew51mwCQ28LIf5eaWpCZfKG/9t9gRGTeX94af4NuabDT5XLA J+UunR6noURnRjijsqxZoTMtEDFjj70hj4zLVt1yTJBkPpClogNVs/qbryWiOow4SF ruVyT2Rz3mfrDm0T+IUGMRduca8djNpHJTQRdrXXhus7x+ONvuooUt+JC/cKYokZ6Z OBNy8nYsqrT8gPaDTJ9X09NMFPmE9Gnt0TzJDT31qoiRaFxk+f5W4Xf757nU8qc/Jt CsFGC0yEhftH5RvI447Nksrtn+36dCRH6wzcvdn7+MglDiapfgKA4cGdR2VyD/bXpV H+BWcOhaZC3WQ== From: Rodolfo Giometti To: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Andrew Morton , Greg KH , corbet@lwn.net, Hall Christopher S , Mohan Subramanian , tglx@linutronix.de, andriy.shevchenko@linux.intel.com, Dong Eddie , N Pandith , T R Thejesh Reddy , Zage David , Chinnadurai Srinivasan , Rodolfo Giometti Subject: [V1 0/4] Add PPS generators Date: Fri, 18 Oct 2024 16:39:11 +0200 Message-Id: <20241018143915.3877425-1-giometti@enneenne.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMAE-Envelope: MS4xfKM+yY/5E5Sa6WTRMRdh0E3rNyGCQWqcYtz3yVVlwjRWj7GHIKG4l7bbvPwwwZBMU8n9EzEFlX/XncKpmz3xR58uZPncsy9DFKNeNjNcRpXcaOQzUKtE h4S6SrYHvMAF1gBmdf6GyPWSv6nA1+W585TpRe4a/dcQlWBQcr4jPRwTDs3eFl6c/SdbDv9vy4V14C9CsVfG0+erRWJPECV5F1JecJ1C0NHQMg4+enL5DsQ7 4TyXjW4cttVr73DDR7IQMJl+hxhGKdYzJDZfSU1t8tCkoaqDkTs5t8Z0Rg3n9a3klpazl9lAwgwde5Ci1e2rjdJVi0pBoSCQiRNE5eLPAsw2VvYscdSbYeyS mu9vmKmlQjP50kqWN9BLQ8AbVlZq5UBby4bJdn6F5wY4eJNwVHSgvMmM4iMQvNSgZrnlU+VrAQ8/qLzSKM7zYagou1VecvbUzfwHam0MOgfCsqMVIdONgLKy mzXx4trmmCqbFm+FRdEtep/kJ4Lk+6MxnJru1sIuCGUesSxtkhyi/KnfLcNffa7j2qu7FrWOdICW017GeYY8A35qnl0rTcc0ukOxVCAPX/7mnJlyi+4+9peg x+P/Rj4WY1BNuMO94lRbccjFbt/9kEh5gPpZYsUBnp5Ml9YYXfXTRU3UDfgHh68dJM8fJNrn+mXQvVQRlFNJbj+07xBDx9E2AqR36JyzqIUCNZHtd1GPE0kR k7rxaVEoQ+yWhmX4rlFli2nGtqLaaRg/ PPS generators are special hardware which are able to produce PPS (Pulse Per Second) signals. This patchset adds PPS generators class in order to have a well-defined interface for these devices. Changelog: RFC -> V1: * char device reworked (get_device/set_device) * dummy driver has been moved in a separate patch * idr_ replaced with ida_* functions * fixes in include/uapi/linux/pps_gen.h * MAINTAINERS updated * new ioctl PPS_GEN_USESYSTEMCLOCK added * new ioctl PPS_GEN_FETCHEVENT added * .compat_ioctl dropped * WARN_ON() removed from pps_gen_cdev_release() * not needed pr_*() calls removed or replaced with dev_*() * more quite driver * name attribute dropped * white spaces removed Rodolfo Giometti (4): drivers pps: add PPS generators support drivers pps/generators: add dummy PPS generator Documentation pps.rst: add PPS generators documentation Documentation ABI: add PPS generators documentation Documentation/ABI/testing/sysfs-pps-gen | 44 +++ Documentation/driver-api/pps.rst | 40 ++ .../userspace-api/ioctl/ioctl-number.rst | 1 + MAINTAINERS | 1 + drivers/pps/Makefile | 3 +- drivers/pps/generators/Kconfig | 22 +- drivers/pps/generators/Makefile | 4 + drivers/pps/generators/pps_gen-dummy.c | 96 +++++ drivers/pps/generators/pps_gen.c | 344 ++++++++++++++++++ drivers/pps/generators/sysfs.c | 75 ++++ include/linux/pps_gen_kernel.h | 78 ++++ include/uapi/linux/pps_gen.h | 37 ++ 12 files changed, 743 insertions(+), 2 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-pps-gen create mode 100644 drivers/pps/generators/pps_gen-dummy.c create mode 100644 drivers/pps/generators/pps_gen.c create mode 100644 drivers/pps/generators/sysfs.c create mode 100644 include/linux/pps_gen_kernel.h create mode 100644 include/uapi/linux/pps_gen.h -- 2.34.1