linux-kernel - [PATCH 5.4 48/96] ARM: dts: meson8b: use the actual frequency for the GPUs 364MHz OPP

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Message-Id: <20200213151858.035142777@linuxfoundation.org>
Date:   Thu, 13 Feb 2020 07:20:55 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Kevin Hilman <khilman@...libre.com>
Subject: [PATCH 5.4 48/96] ARM: dts: meson8b: use the actual frequency for the GPUs 364MHz OPP

From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

commit c3dd3315ab58b2cfa1916df55b0d0f9fbd94266f upstream.

The clock setup on Meson8 cannot achieve a Mali frequency of exactly
182.15MHz. The vendor driver uses "FCLK_DIV7 / 1" for this frequency,
which translates to 2550MHz / 7 / 1 = 364285714Hz.
Update the GPU operating point to that specific frequency to not confuse
myself when comparing the frequency from the .dts with the actual clock
rate on the system.

Fixes: c3ea80b6138cae ("ARM: dts: meson8b: add the Mali-450 MP2 GPU")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Signed-off-by: Kevin Hilman <khilman@...libre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/meson8b.dtsi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -125,8 +125,8 @@
 			opp-hz = /bits/ 64 <255000000>;
 			opp-microvolt = <1100000>;
 		};
-		opp-364300000 {
-			opp-hz = /bits/ 64 <364300000>;
+		opp-364285714 {
+			opp-hz = /bits/ 64 <364285714>;
 			opp-microvolt = <1100000>;
 		};
 		opp-425000000 {