diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0831-dtoverlays-Add-i2c-bus-overrides-to-edt-ft5406-overl.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0831-dtoverlays-Add-i2c-bus-overrides-to-edt-ft5406-overl.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0831-dtoverlays-Add-i2c-bus-overrides-to-edt-ft5406-overl.patch b/target/linux/bcm27xx/patches-6.1/950-0831-dtoverlays-Add-i2c-bus-overrides-to-edt-ft5406-overl.patch new file mode 100644 index 0000000000..cf703b0029 --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-0831-dtoverlays-Add-i2c-bus-overrides-to-edt-ft5406-overl.patch @@ -0,0 +1,102 @@ +From 3fa2fbb7f6e60b85086e454403c5eab1af63b1aa Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Wed, 14 Jun 2023 13:43:58 +0100 +Subject: [PATCH] dtoverlays: Add i2c bus overrides to edt-ft5406 overlay + +Adds the option for the touch controller to be connected to any +of the I2C ports. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + arch/arm/boot/dts/overlays/README | 17 +++++++++++++++- + .../boot/dts/overlays/edt-ft5406-overlay.dts | 20 +++++++++++++++++++ + arch/arm/boot/dts/overlays/edt-ft5406.dtsi | 9 ++++++++- + 3 files changed, 44 insertions(+), 2 deletions(-) + +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -1040,9 +1040,11 @@ Params: dr_mode Dual rol + + + Name: edt-ft5406 +-Info: Overlay for the EDT FT5406 touchscreen on the CSI/DSI I2C interface. ++Info: Overlay for the EDT FT5406 touchscreen. + This works with the Raspberry Pi 7" touchscreen when not being polled + by the firmware. ++ By default the overlay uses the i2c_csi_dsi I2C interface, but this ++ can be overridden + You MUST use either "disable_touchscreen=1" or "ignore_lcd=1" in + config.txt to stop the firmware polling the touchscreen. + Load: dtoverlay=edt-ft5406,<param>=<val> +@@ -1051,6 +1053,19 @@ Params: sizex Touchscr + invx Touchscreen inverted x axis + invy Touchscreen inverted y axis + swapxy Touchscreen swapped x y axis ++ i2c0 Choose the I2C0 bus on GPIOs 0&1 ++ i2c1 Choose the I2C1 bus on GPIOs 2&3 ++ 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) ++ addr Sets the address for the touch controller. Note ++ that the device must be configured to use the ++ specified address. + + + Name: enc28j60 +--- a/arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts ++++ b/arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts +@@ -23,4 +23,24 @@ + status = "okay"; + }; + }; ++ ++ __overrides__ { ++ i2c0 = <&frag13>,"target:0=",<&i2c0>; ++ i2c1 = <&frag13>, "target?=0", ++ <&frag13>, "target-path=i2c1", ++ <0>,"-0-1"; ++ i2c3 = <&frag13>, "target?=0", ++ <&frag13>, "target-path=i2c3", ++ <0>,"-0-1"; ++ i2c4 = <&frag13>, "target?=0", ++ <&frag13>, "target-path=i2c4", ++ <0>,"-0-1"; ++ i2c5 = <&frag13>, "target?=0", ++ <&frag13>, "target-path=i2c5", ++ <0>,"-0-1"; ++ i2c6 = <&frag13>, "target?=0", ++ <&frag13>, "target-path=i2c6", ++ <0>,"-0-1"; ++ addr = <&ft5406>,"reg:0"; ++ }; + }; +--- a/arch/arm/boot/dts/overlays/edt-ft5406.dtsi ++++ b/arch/arm/boot/dts/overlays/edt-ft5406.dtsi +@@ -23,7 +23,7 @@ + }; + + fragment@12 { +- target = <&i2c_csi_dsi>; ++ target = <&i2cbus>; + __overlay__ { + #address-cells = <1>; + #size-cells = <0>; +@@ -37,6 +37,13 @@ + }; + }; + ++ frag13: fragment@13 { ++ target = <&i2c_csi_dsi>; ++ i2cbus: __overlay__ { ++ status = "okay"; ++ }; ++ }; ++ + __overrides__ { + sizex = <&ft5406>,"touchscreen-size-x:0"; + sizey = <&ft5406>,"touchscreen-size-y:0"; |