From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8FA5F1C26 for ; Fri, 2 Dec 2022 23:39:28 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0958523A; Fri, 2 Dec 2022 15:39:29 -0800 (PST) Received: from slackpad.lan (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 36A143F73B; Fri, 2 Dec 2022 15:39:21 -0800 (PST) Date: Fri, 2 Dec 2022 23:37:38 +0000 From: Andre Przywara To: Uwe =?UTF-8?B?S2xlaW5lLUvDtm5pZw==?= Cc: Thierry Reding , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Subject: Re: [PATCH] pwm: sun4i: Propagate errors in .get_state() to the caller Message-ID: <20221202233738.281329b1@slackpad.lan> In-Reply-To: <20221201154822.mx7jafj3tyxes5ab@pengutronix.de> References: <20221201152223.3133-1-andre.przywara@arm.com> <20221201154822.mx7jafj3tyxes5ab@pengutronix.de> Organization: Arm Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.31; x86_64-slackware-linux-gnu) Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 1 Dec 2022 16:48:22 +0100 Uwe Kleine-K=C3=B6nig wrote: > On Thu, Dec 01, 2022 at 03:22:23PM +0000, Andre Przywara wrote: > > .get_state() can return an error indication now. Make use of it to > > propagate an impossible prescaler encoding, should that have sneaked in > > somehow. > > Also check the return value of clk_get_rate(). That's unlikely to fail, > > but we use that in two divide operations down in the code, so let's > > avoid a divide-by-zero condition on the way. > >=20 > > Signed-off-by: Andre Przywara > > --- > > Hi, > >=20 > > this goes on top of Uwe's series to introduce and observe .get_state > > failures: https://lore.kernel.org/linux-pwm/20221130152148.2769768-12-u= .kleine-koenig@pengutronix.de/T/#m9af39aa03bbd9bb7b31b3600f110c65ee0e8e70b > > Actually it only relies on patch 01/11 from that. =20 >=20 > I recommend to put this info in machine-readable form into your patch. > If you applied my patch #1 on v6.1-rc1 and this on top, you'd do >=20 > git format-patch -1 --base v6.1-rc1 >=20 > This results in two additional lines that the build bots can evaluate, > to find the right setup to test your patch. Ah, nice one, didn't know about that. And just went I wanted to complain that this relies on public branches and committed patches, I learned that it doesn't. So I got: base-commit: eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 prerequisite-patch-id: 3022328f2919301d79d852ef148c3f9dc4d723d6 Do you want me to resend the patch with this information? > Apart from that: >=20 > Reviewed-by: Uwe Kleine-K=C3=B6nig Thanks for that! Cheers, Andre >=20 > and thanks to pick up on this topic, > Uwe >=20