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openwrt/target/linux/bcm27xx/patches-6.6/950-0865-ARM-dts-rp1-Add-I2C-timings.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

79 lines
2.3 KiB
Diff

From c696ba4aacc39492ce09279c71135663d899a298 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Tue, 16 Jan 2024 16:05:18 +0000
Subject: [PATCH 0865/1085] ARM: dts: rp1: Add I2C timings
Add SCL rise and fall times, to allow the derivation of timings at
arbitrary speeds.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/broadcom/rp1.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/arch/arm/boot/dts/broadcom/rp1.dtsi
+++ b/arch/arm/boot/dts/broadcom/rp1.dtsi
@@ -305,6 +305,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C0 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};
@@ -313,6 +315,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C1 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};
@@ -321,6 +325,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};
@@ -329,6 +335,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C3 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};
@@ -337,6 +345,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C4 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};
@@ -345,6 +355,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C5 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};
@@ -353,6 +365,8 @@
compatible = "snps,designware-i2c";
interrupts = <RP1_INT_I2C6 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&rp1_clocks RP1_CLK_SYS>;
+ i2c-scl-rising-time-ns = <65>;
+ i2c-scl-falling-time-ns = <100>;
status = "disabled";
};