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[2003:e4:1f16:2000:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id m19-20020a1709062b9300b00a524476aac9sm2421661ejg.108.2024.04.19.09.48.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 19 Apr 2024 09:48:46 -0700 (PDT) Content-Type: multipart/signed; boundary=3118598f6dbc0f52f6a918ba388a5dc1bfed081e65249721fa4e8b14733d; micalg=pgp-sha256; protocol="application/pgp-signature" Mime-Version: 1.0 Date: Fri, 19 Apr 2024 18:48:45 +0200 Message-Id: Cc: Subject: Re: [PATCH v6 08/18] video: tegra20: dc: configure behavior if PLLD/D2 is used From: "Thierry Reding" To: "Svyatoslav Ryhel" , "Thierry Reding" , "Anatolij Gustschin" , "Simon Glass" X-Mailer: aerc 0.16.0-1-0-g560d6168f0ed-dirty References: <20240123171633.246057-1-clamor95@gmail.com> <20240123171633.246057-9-clamor95@gmail.com> In-Reply-To: <20240123171633.246057-9-clamor95@gmail.com> X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean --3118598f6dbc0f52f6a918ba388a5dc1bfed081e65249721fa4e8b14733d Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Tue Jan 23, 2024 at 6:16 PM CET, Svyatoslav Ryhel wrote: > If DISP1 is a PLLD/D2 child, it cannot go over 370MHz. The cause > of this is not quite clear. This can be overcomed by further > halving the PLLD/D2 if the target parent rate is over 800MHz. > This way DISP1 and DSI clocks will have the same frequency. The > shift divider in this case has to be calculated from the > original PLLD/D2 frequency and is passed from the DSI driver. > > Tested-by: Andreas Westman Dorcsak # ASUS Grouper E156= 5 > Tested-by: Ion Agorria # HTC One X > Tested-by: Svyatoslav Ryhel # Nvidia Tegratab T114 > Tested-by: Jonas Schw=C3=B6bel # Microsoft Surf= ace 2 > Signed-off-by: Jonas Schw=C3=B6bel > Signed-off-by: Svyatoslav Ryhel > --- > drivers/video/tegra20/tegra-dc.c | 34 +++++++++++++++++++------------ > drivers/video/tegra20/tegra-dc.h | 1 + > drivers/video/tegra20/tegra-dsi.c | 14 +++++++++++++ > 3 files changed, 36 insertions(+), 13 deletions(-) I'm not very familiar with these clocks, but seeing that this was extensively tested, I guess this is okay, so: Acked-by: Thierry Reding --3118598f6dbc0f52f6a918ba388a5dc1bfed081e65249721fa4e8b14733d Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAmYioG0ACgkQ3SOs138+ s6E+tg/8DwhEwhF4ecf0rK6/xw/ugWzmO257puZ+U0p28zGwtpomvk5rd5YHh6VJ /sVU41/5oXptAOTo6wu+T5MepkItho6e7heECJkyy+pp+3sNhjK1HKFPxEp/gOKm fGvgnFR5U63W9MNdgvTo4ntykYFzJqKeBNhZCMWkjtasOkh3BJiwULSTaaDvofiF kd519X5nAAZ08TaXUmivnq01Mm0WTeC29l/xvkTmFhIiiRrbKQrzOq404dQBehv0 IEkVXrKNSdeL9OhcFOOGLmjr6Yu3Gonvw/9L2cdsvn714LW93gf+DWfALVqh0nHj h+o8WbB9tUq3C6wDUfUUbkQdeI6Vo4NPxHHXcPznB5I3XWAluJCGDVQoYiGtBqhk CktgyGrs7rw6f+jKICGPiF0gIjPqaZvOeUo1Ur9Rd8IK2k2FNuEuGiinOG0VNCTi F/6/HTI7ijQwxHoz0Hrvqpg4b6pGWLphyA89XzrR7rQvqQKP0bOk7I2na2JbpQET bCUwPxj+mA72Bzm/NesGEPBMHiBmxnYiI2aFdV2PDS9ZPzKQFFFacNbG6ael7tpn YGKbsqEc4/4mLG84Tlsr9iprqm55YXXd9GqoPsPcdrZw1eqxkks3nH+RKKTQ2y3K choERsz9tgev8QNaLGdM6cWvSJ47V5CoH0ZfAR1Au6KWuJKIerk= =nlOO -----END PGP SIGNATURE----- --3118598f6dbc0f52f6a918ba388a5dc1bfed081e65249721fa4e8b14733d--