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[86.58.6.171]) by smtp.gmail.com with ESMTPSA id q6-20020a05600c46c600b004132aa2f857sm3034508wmo.17.2024.03.13.11.19.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Mar 2024 11:19:37 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Michael Turquette , Stephen Boyd , Chen-Yu Tsai , Samuel Holland , Guido =?ISO-8859-1?Q?G=FCnther?= , Purism Kernel Team , Ondrej Jirman , Neil Armstrong , Jessica Zhang , Sam Ravnborg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Oltmanns Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, Frank Oltmanns , Erico Nunes Subject: Re: [PATCH v4 5/5] arm64: dts: allwinner: a64: Run GPU at 432 MHz Date: Wed, 13 Mar 2024 19:19:35 +0100 Message-ID: <1978377.usQuhbGJ8B@jernej-laptop> In-Reply-To: <20240310-pinephone-pll-fixes-v4-5-46fc80c83637@oltmanns.dev> References: <20240310-pinephone-pll-fixes-v4-0-46fc80c83637@oltmanns.dev> <20240310-pinephone-pll-fixes-v4-5-46fc80c83637@oltmanns.dev> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Dne nedelja, 10. marec 2024 ob 14:21:15 CET je Frank Oltmanns napisal(a): > The Allwinner A64's GPU has currently three operating points. However, > the BSP runs the GPU fixed at 432 MHz. In addition, at least one of the > devices using that SoC - the pinephone - shows unstabilities (see link) > that can be circumvented by running the GPU at a fixed rate. > > Therefore, remove the other two operating points from the GPU OPP table, > so that the GPU runs at a fixed rate of 432 MHz. > > Link: https://gitlab.com/postmarketOS/pmaports/-/issues/805 > Acked-by: Erico Nunes > Signed-off-by: Frank Oltmanns Acked-by: Jernej Skrabec Best regards, Jernej > --- > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 8 -------- > 1 file changed, 8 deletions(-) > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > index 57ac18738c99..c810380aab6d 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > @@ -107,14 +107,6 @@ de: display-engine { > gpu_opp_table: opp-table-gpu { > compatible = "operating-points-v2"; > > - opp-120000000 { > - opp-hz = /bits/ 64 <120000000>; > - }; > - > - opp-312000000 { > - opp-hz = /bits/ 64 <312000000>; > - }; > - > opp-432000000 { > opp-hz = /bits/ 64 <432000000>; > }; > >