diff options
Diffstat (limited to 'bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0488-arm64-dts-renesas-block-i2c-pm-runtime.patch')
| -rw-r--r-- | bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0488-arm64-dts-renesas-block-i2c-pm-runtime.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0488-arm64-dts-renesas-block-i2c-pm-runtime.patch b/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0488-arm64-dts-renesas-block-i2c-pm-runtime.patch new file mode 100644 index 00000000..ef606653 --- /dev/null +++ b/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0488-arm64-dts-renesas-block-i2c-pm-runtime.patch @@ -0,0 +1,68 @@ +From 7d99fda5fcfea599b9611f4af562b5ee327e8745 Mon Sep 17 00:00:00 2001 +From: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Date: Wed, 25 Mar 2020 15:12:47 +0300 +Subject: [PATCH] arm64: dts: renesas: block i2c pm runtime + +Block i2c pm runtime on video boxes. +This speed up i2c under stress cases: imagers control over +FPDLINK or GMSL + +Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +--- + arch/arm64/boot/dts/renesas/r8a77970-v3msk-vbm.dts | 1 + + arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-4ch.dts | 2 +- + arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-8ch.dts | 1 + + arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-gmsl-8ch.dts | 1 + + 4 files changed, 4 insertions(+), 1 deletion(-) + +diff --git a/arch/arm64/boot/dts/renesas/r8a77970-v3msk-vbm.dts b/arch/arm64/boot/dts/renesas/r8a77970-v3msk-vbm.dts +index 7ab71c8..4eb160c 100644 +--- a/arch/arm64/boot/dts/renesas/r8a77970-v3msk-vbm.dts ++++ b/arch/arm64/boot/dts/renesas/r8a77970-v3msk-vbm.dts +@@ -75,6 +75,7 @@ + status = "okay"; + + clock-frequency = <400000>; ++ multi-master; + + i2cswitch1: i2c-switch@74 { + compatible = "nxp,pca9548"; +diff --git a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-4ch.dts b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-4ch.dts +index 4ca62c6..7c84657 100644 +--- a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-4ch.dts ++++ b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-4ch.dts +@@ -143,6 +143,7 @@ + status = "okay"; + + clock-frequency = <400000>; ++ multi-master; + + i2cswitch1: i2c-switch@74 { + compatible = "nxp,pca9548"; +diff --git a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-8ch.dts b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-8ch.dts +index b635132..47f4408 100644 +--- a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-8ch.dts ++++ b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-8ch.dts +@@ -143,6 +143,7 @@ + status = "okay"; + + clock-frequency = <400000>; ++ multi-master; + + i2cswitch1: i2c-switch@74 { + compatible = "nxp,pca9548"; +diff --git a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-gmsl-8ch.dts b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-gmsl-8ch.dts +index f90951d..dc7938b 100644 +--- a/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-gmsl-8ch.dts ++++ b/arch/arm64/boot/dts/renesas/r8a77980-v3hsk-vb-gmsl-8ch.dts +@@ -137,6 +137,7 @@ + status = "okay"; + + clock-frequency = <400000>; ++ multi-master; + + i2cswitch1: i2c-switch@74 { + compatible = "nxp,pca9548"; +-- +2.7.4 + |