From mboxrd@z Thu Jan 1 00:00:00 1970 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 2E589372EC5; Thu, 5 Mar 2026 08:57:04 +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=1772701025; cv=none; b=BYiqUl51Qhrij/XXA3YCP7Xg/jjmi4UdVRS+OWDSoSR1N2WPzTdfcYKK+bLY8xx/bFc+uNCIDWGfBaY0vEjFzmYt4EVJSYQa3N72TA7J8imLVf4n1PEjm8/pxzFjIAZdPtvUXsRGETQbdSMmIWw1Jv7LPb267pCmhF9uCyhjBnU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772701025; c=relaxed/simple; bh=iqU5pDubMQ06tWai2ZxGuPk0TJeUQI6pQzatbxUVvj4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=DG4gK/48cmV1luOGa5V2eYPgBEbO9irzjEuoqaDHVHcIcbgAyBnsb0HGEu7gt1pAcI0xEGglfaDRkphyPz5dJTo8Cekzch7ALPYi7h4bVeyEGPEos53gApZkiBY+6T/1sS1FRZax8Dq89D/zgtpwiL67ljFtmCFNuUdQLKoGeI8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qyrzZSbv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qyrzZSbv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63A26C116C6; Thu, 5 Mar 2026 08:57:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772701024; bh=iqU5pDubMQ06tWai2ZxGuPk0TJeUQI6pQzatbxUVvj4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qyrzZSbvsg9feohGDgAsR0KJ58/BzUhcMLcVU8xgvBmH6cNwppZmtnArAj7ZOPzIr 7bMY6ogG/hlpvycGq4ZmIXc5mZci/DgBwfbxburCw6ehmJtXlm+liXPo5fzirOVvAX ZeHm8ZxBa/2/ZcruOO1Stu6qN4qZ7c89+l0OGeZTpv2qcjx6Zg7ASY+WJrgST6GwNq YOCxzy3+lJoN2Z2zuvGVUwow5dCe+PkWwhEfkakXAn16HN1ZxtYbYtcvfqqqj5f5Xh tWVE6Wz7HbhXZnMdQvEZS3+fL+WDlIITDD+0Zx/8YBf/DbvGqHNfY7GDK8M5yX2zYz Vcna2ylwW93Zg== Date: Thu, 5 Mar 2026 09:57:02 +0100 From: Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= To: Cosmin Tanislav Cc: Biju Das , William Breathitt Gray , Lee Jones , Thierry Reding , linux-iio@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 1/5] pwm: rz-mtu3: fix prescale check when enabling 2nd channel Message-ID: References: <20260130122353.2263273-1-cosmin-gabriel.tanislav.xa@renesas.com> <20260130122353.2263273-2-cosmin-gabriel.tanislav.xa@renesas.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="v3ukleok2z5qariw" Content-Disposition: inline In-Reply-To: <20260130122353.2263273-2-cosmin-gabriel.tanislav.xa@renesas.com> --v3ukleok2z5qariw Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Subject: Re: [PATCH 1/5] pwm: rz-mtu3: fix prescale check when enabling 2nd channel MIME-Version: 1.0 Hello Cosmin, On Fri, Jan 30, 2026 at 02:23:49PM +0200, Cosmin Tanislav wrote: > enable_count is only incremented after rz_mtu3_pwm_config() is called > for the current PWM channel, causing prescale to not be checked if one > PWM channel is enabled and we're enabling the second PWM channel of the > same HW channel. I don't understand the issue. If the second PWM channel is enabled while the first is only requested, changing the period is fine?! Can you please show a sequence of events that result in bad behaviour? Best regards Uwe --v3ukleok2z5qariw Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmmpRVwACgkQj4D7WH0S /k7Fbgf/bx6EVifYdpoGaB5fRe2misGSlByQK+enGUL2JWVq7IxvXGPY5X+OPJK7 ZvJQBh8SRtcfbW6Wo+g6oinHWPKhOB4+1Z1+9IRxk4mGuHNzTKnCdu5FvuMJVBNN 04+ciEat4zNXhTKuFT2vQYCqEdWqQWoXt2jAIA5sZMPbTSd+u+1mKMREzUw4YwuR tcpCZAcvmGsQ23HRigkQIKWYvvXAETkmMBE5RhN5vbv1OmQ1PrB0UvKDebdrBNuz OOYYo07zrd6upaiMVz4Bq6uqOwdfx6/Wf1sRcLV+P2Bm2GXomZaqYtL01hlYelTI 3oVz3coTM2rYYjERqikyAGAJArrkZQ== =vcUS -----END PGP SIGNATURE----- --v3ukleok2z5qariw--