diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-1185-overlays-ADS1115-allow-specification-of-the-i2c-bus.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-1185-overlays-ADS1115-allow-specification-of-the-i2c-bus.patch | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-1185-overlays-ADS1115-allow-specification-of-the-i2c-bus.patch b/target/linux/bcm27xx/patches-6.1/950-1185-overlays-ADS1115-allow-specification-of-the-i2c-bus.patch new file mode 100644 index 0000000000..ef9328bd6f --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-1185-overlays-ADS1115-allow-specification-of-the-i2c-bus.patch @@ -0,0 +1,159 @@ +From a477a6351575aa173f9f82857f5797e384fbc704 Mon Sep 17 00:00:00 2001 +From: JinShil <slavo5150@yahoo.com> +Date: Tue, 28 Nov 2023 17:05:44 +0900 +Subject: [PATCH] overlays: ADS1115: allow specification of the i2c bus + +--- + arch/arm/boot/dts/overlays/README | 10 +++ + .../arm/boot/dts/overlays/ads1115-overlay.dts | 80 +++++++++++++------ + 2 files changed, 66 insertions(+), 24 deletions(-) + +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -489,6 +489,16 @@ Params: addr I2C bus + cha_gain Set the gain of the Programmable Gain + Amplifier for this channel. (Default 1 sets the + full scale of the channel to 4.096 Volts) ++ i2c0 Choose the I2C0 bus on GPIOs 0&1 ++ i2c_csi_dsi Choose the I2C0 bus on GPIOs 44&45 ++ i2c3 Choose the I2C3 bus (configure with the i2c3 ++ overlay - BCM2711 only) ++ i2c4 Choose the I2C4 bus (configure with the i2c4 ++ overlay - BCM2711 only) ++ i2c5 Choose the I2C5 bus (configure with the i2c5 ++ overlay - BCM2711 only) ++ i2c6 Choose the I2C6 bus (configure with the i2c6 ++ overlay - BCM2711 only) + + Channel parameters can be set for each enabled channel. + A maximum of 4 channels can be enabled (letters a thru d). +--- a/arch/arm/boot/dts/overlays/ads1115-overlay.dts ++++ b/arch/arm/boot/dts/overlays/ads1115-overlay.dts +@@ -9,23 +9,6 @@ + compatible = "brcm,bcm2835"; + + fragment@0 { +- target = <&i2c_arm>; +- __overlay__ { +- #address-cells = <1>; +- #size-cells = <0>; +- status = "okay"; +- +- ads1115: ads1115@48 { +- compatible = "ti,ads1115"; +- status = "okay"; +- #address-cells = <1>; +- #size-cells = <0>; +- reg = <0x48>; +- }; +- }; +- }; +- +- fragment@1 { + target = <&ads1115>; + __dormant__ { + #address-cells = <1>; +@@ -39,7 +22,7 @@ + }; + }; + +- fragment@2 { ++ fragment@1 { + target = <&ads1115>; + __dormant__ { + #address-cells = <1>; +@@ -53,7 +36,7 @@ + }; + }; + +- fragment@3 { ++ fragment@2 { + target = <&ads1115>; + __dormant__ { + #address-cells = <1>; +@@ -67,7 +50,7 @@ + }; + }; + +- fragment@4 { ++ fragment@3 { + target = <&ads1115>; + __dormant__ { + #address-cells = <1>; +@@ -81,23 +64,72 @@ + }; + }; + ++ fragment@4 { ++ target = <&i2cbus>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ status = "okay"; ++ ++ ads1115: ads1115@48 { ++ compatible = "ti,ads1115"; ++ status = "okay"; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ reg = <0x48>; ++ }; ++ }; ++ }; ++ ++ frag100: fragment@100 { ++ target = <&i2c1>; ++ i2cbus: __overlay__ { ++ status = "okay"; ++ }; ++ }; ++ ++ fragment@101 { ++ target = <&i2c0if>; ++ __dormant__ { ++ status = "okay"; ++ }; ++ }; ++ ++ fragment@102 { ++ target = <&i2c0mux>; ++ __dormant__ { ++ status = "okay"; ++ }; ++ }; ++ + __overrides__ { + addr = <&ads1115>,"reg:0"; +- cha_enable = <0>,"=1"; ++ cha_enable = <0>,"=0"; + cha_cfg = <&channel_a>,"reg:0"; + cha_gain = <&channel_a>,"ti,gain:0"; + cha_datarate = <&channel_a>,"ti,datarate:0"; +- chb_enable = <0>,"=2"; ++ chb_enable = <0>,"=1"; + chb_cfg = <&channel_b>,"reg:0"; + chb_gain = <&channel_b>,"ti,gain:0"; + chb_datarate = <&channel_b>,"ti,datarate:0"; +- chc_enable = <0>,"=3"; ++ chc_enable = <0>,"=2"; + chc_cfg = <&channel_c>,"reg:0"; + chc_gain = <&channel_c>,"ti,gain:0"; + chc_datarate = <&channel_c>,"ti,datarate:0"; +- chd_enable = <0>,"=4"; ++ chd_enable = <0>,"=3"; + chd_cfg = <&channel_d>,"reg:0"; + chd_gain = <&channel_d>,"ti,gain:0"; + chd_datarate = <&channel_d>,"ti,datarate:0"; ++ i2c0 = <&frag100>, "target:0=",<&i2c0>; ++ i2c_csi_dsi = <&frag100>, "target:0=",<&i2c_csi_dsi>, ++ <0>,"+101+102"; ++ i2c3 = <&frag100>, "target?=0", ++ <&frag100>, "target-path=i2c3"; ++ i2c4 = <&frag100>, "target?=0", ++ <&frag100>, "target-path=i2c4"; ++ i2c5 = <&frag100>, "target?=0", ++ <&frag100>, "target-path=i2c5"; ++ i2c6 = <&frag100>, "target?=0", ++ <&frag100>, "target-path=i2c6"; + }; + }; |