From c696ba4aacc39492ce09279c71135663d899a298 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 16 Jan 2024 16:05:18 +0000 Subject: [PATCH 0865/1002] 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 --- arch/arm/boot/dts/broadcom/rp1.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/rp1.dtsi b/arch/arm/boot/dts/broadcom/rp1.dtsi index 8c2ff53a045a..46f80a729a9c 100644 --- a/arch/arm/boot/dts/broadcom/rp1.dtsi +++ b/arch/arm/boot/dts/broadcom/rp1.dtsi @@ -305,6 +305,8 @@ rp1_i2c0: i2c@70000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; @@ -313,6 +315,8 @@ rp1_i2c1: i2c@74000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; @@ -321,6 +325,8 @@ rp1_i2c2: i2c@78000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; @@ -329,6 +335,8 @@ rp1_i2c3: i2c@7c000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; @@ -337,6 +345,8 @@ rp1_i2c4: i2c@80000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; @@ -345,6 +355,8 @@ rp1_i2c5: i2c@84000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; @@ -353,6 +365,8 @@ rp1_i2c6: i2c@88000 { compatible = "snps,designware-i2c"; interrupts = ; clocks = <&rp1_clocks RP1_CLK_SYS>; + i2c-scl-rising-time-ns = <65>; + i2c-scl-falling-time-ns = <100>; status = "disabled"; }; -- 2.44.0