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Tue, 28 Sep 2021 09:05:51 -0400 (EDT) Date: Tue, 28 Sep 2021 15:05:49 +0200 From: Maxime Ripard To: Maarten Lankhorst , Thomas Zimmermann , Daniel Vetter , David Airlie Cc: linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, Mike Turquette , Stephen Boyd , Nicolas Saenz Julienne , Florian Fainelli , Michael Stapelberg , Linus Torvalds Subject: Re: [PATCH 0/5] drm/vc4: hdmi: Remove CPU hangs, take 2 Message-ID: <20210928130549.wi6hvvcvqahzfkw5@gilmour> References: <20210922125419.4125779-1-maxime@cerno.tech> <20210924074044.e24kbxr7lhdtb3eg@gilmour> MIME-Version: 1.0 In-Reply-To: <20210924074044.e24kbxr7lhdtb3eg@gilmour> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210928_060556_626904_CB59D682 X-CRM114-Status: GOOD ( 20.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5403816708179084373==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============5403816708179084373== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="tkxdn235uef745fa" Content-Disposition: inline --tkxdn235uef745fa Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 24, 2021 at 09:40:44AM +0200, Maxime Ripard wrote: > Hi, >=20 > On Wed, Sep 22, 2021 at 02:54:14PM +0200, Maxime Ripard wrote: > > Hi, > >=20 > > Here's another attempt at fixing the complete CPU stall while retrievin= g the > > HDMI connector status when the connector is disabled. > >=20 > > This was fixed already, but eventually got reverted by Linus due to the= same > > symptom happening in another situation. This was likely (but not confir= med by > > the reporter) due to the kernel being booted without an HDMI display co= nnected, > > in which case the firmware won't initialise the HDMI State Machine cloc= k. > >=20 > > This is fixed by patch 3. However, further changes in the clock drivers= were > > needed for clk_set_min_rate to be used, which are patches 1 and 2. > >=20 > > Finally, patches 4 and 5 are the original patches that were reverted. P= atch 4 > > got a small modification to move the clk_set_min_rate() call before the= HSM > > clock is enabled. >=20 > If we merge the clock patches and DRM patches separately we're going to > break bisectability. I guess the easiest approach would be to merge the > clk patches through DRM. Does that work for everyone? Anyone? I can ask around for reviews on DRM, but I'd really like some reviews on the clock patches here.. Maxime --tkxdn235uef745fa Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCYVMTLQAKCRDj7w1vZxhR xcvsAQDxKhsDP22GD43Lx/O+AaKX9Che1s2gN5v6ULUQwlNDCQD9GRoiomNxCpu1 kBfejcbPla1BuEPCa+nLgompl7GSJw4= =c5UX -----END PGP SIGNATURE----- --tkxdn235uef745fa-- --===============5403816708179084373== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============5403816708179084373==--