From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.126 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792763478; b=FmH+f65UC8JJcmya1pG37VtIQXzJavhQDUVSXIfnliXw/zbjV7aL/bcV/dyB25ejz4aI xpHMyfWD+e3afuUGARu6/NxA25WNGDBGLZPM4PnZsLlp/5iu36dFzn5gzT+f3+BPWfNbH rORSCbGNoZjAzPepmRKP10PHDuDFE49pzpRSZkvg57jbPniPUR9ZqtAc7NdkNar6CEV/n DRCcVnSKZaThdFgWG6NnqKM7qXKiWhuBU6txn0bhJd17p43FOeq8TI1+CArc9tm5VOCZl qBYAQaU3KN8Yq2QrdLrm05xddoEVBI0lzQPLUqXbFeVuwZUcNC8gmpDz+gf5OG0k0RQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792763478; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:Message-ID:Date:MIME-Version:User-Agent: Subject:To:Cc:References:Content-Language:From:In-Reply-To: Content-Type:Content-Transfer-Encoding; bh=CdsOu3OSEsynQJ6rdHJSUQdyHbmYdl9dN4nnm+613fs=; b=ei2tz4wgntBKJcMq1ewVDD27WPF2P90QMkRXd/jvtXjV1mBPkLVt6o1sxTA+6UOIKFxz BFuQGaZ47W/E0FDzz/BGMmyVnEejWEy2SJ8OjG8bboAfHPcn0rHSezNrdq9PyKAWz9/hE lqdfxBxmXc+5rV9pJEiQ8O8e5I35ohrzunoj9TNyrmC5e+nC6G3fhp/9L+MT7ScIg5Hnc halxIP41vasXB5yQUUxuYSHvkZBha1g4WRE1KERXRHz5cWPuuU84884i/3cJm7m8aMEy8 ZgagWbfa9MbU2gsHQoqWZbksxp/8HhhLdrnfWiZvXRW5YVxl3AGBMaJvuqnoPGd0qhA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=P4XJLwbO; arc=none smtp.remote-ip=91.218.175.126 Received: from mta0.migadu.com (out-126.mta0.migadu.com [91.218.175.126]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F618606A31B for ; Fri, 23 Oct 2026 13:51:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 7F618606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=P4XJLwbO X-Envelope-To: netdev@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=n/CwR0aupi+SV9gglaQoOTa0JU0PwKkfaExBUVamX4U=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1792763474; v=1; x=1793368274; b=P4XJLwbOe7Nkc3VGr+sPWO9ELMXTjFkVzrP2iBk2r3idn4Kips19yACAacyOCbKNuZ8vnX9O yz/am+PXfngvvanvImUSlNEm624i/VXnUNHHrjFYyAfDTU8AlrB/lOdzkJVQW4T6Gh2C6Mv6s6f IMXBQxK4siqDC2DehhiOiYaQ= X-Envelope-To: netdev@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 9ced7062e363dd41; Fri, 23 Oct 2026 13:51:14 +0000 X-Mizu-Trace-ID: 9ced7062e363dd41 X-Migadu-Flow: FLOW_OUT Message-ID: <45128a4d-d92a-4966-b3a9-668de73d3d90@linux.dev> Date: Fri, 23 Oct 2026 14:51:09 +0100 X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net] net: ethernet: ti: am65-cpts: fix support for PTP_EXTTS_REQUEST2 ioctl To: James Clark , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Richard Cochran , Jacob Keller , Kory Maincent , Siddharth Vadapalli , Chintan Vankar , netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261020003525.1237742-1-jjc@jclark.com> Content-Language: en-US From: Vadim Fedorenko In-Reply-To: <20261020003525.1237742-1-jjc@jclark.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 20/10/2026 01:35, James Clark wrote: > Commit 7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to > ptp_clock_info") modified the PTP core to validate the supported flags > of external timestamp requests, rather than relying on each driver to > check them. > > am65_cpts_extts_enable() ignores the flags, and am65-cpts was not given > any .supported_extts_flags. Since PTP_EXTTS_REQUEST2 always implies > PTP_STRICT_FLAGS, the core now rejects every PTP_EXTTS_REQUEST2 for this > driver with -EOPNOTSUPP, where before that commit the same requests > succeeded. Only the PTP_EXTTS_REQUEST ioctl still works. > > Tests on a BeagleY-AI (J722S) show that the CPTS hardware timestamp push > inputs timestamp just the rising edge. Encode this in > .supported_extts_flags. A PTP_EXTTS_REQUEST2 for the rising edge then > succeeds, and one for the falling edge or for both edges fails with > -EOPNOTSUPP. > > Fixes: 7c571ac57d9d ("net: ptp: introduce .supported_extts_flags to ptp_clock_info") > Signed-off-by: James Clark > --- > drivers/net/ethernet/ti/am65-cpts.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/net/ethernet/ti/am65-cpts.c b/drivers/net/ethernet/ti/am65-cpts.c > index efbf2ef976a..df5659ead72 100644 > --- a/drivers/net/ethernet/ti/am65-cpts.c > +++ b/drivers/net/ethernet/ti/am65-cpts.c > @@ -779,6 +779,7 @@ static long am65_cpts_ts_work(struct ptp_clock_info *ptp); > static struct ptp_clock_info am65_ptp_info = { > .owner = THIS_MODULE, > .name = "CTPS timer", > + .supported_extts_flags = PTP_RISING_EDGE | PTP_STRICT_FLAGS, > .adjfine = am65_cpts_ptp_adjfine, > .adjtime = am65_cpts_ptp_adjtime, > .gettimex64 = am65_cpts_ptp_gettimex, Reviewed-by: Vadim Fedorenko