diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0511-Add-Adafruit-pitft35-touchscreen-support-1657.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0511-Add-Adafruit-pitft35-touchscreen-support-1657.patch | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0511-Add-Adafruit-pitft35-touchscreen-support-1657.patch b/target/linux/brcm2708/patches-4.4/0511-Add-Adafruit-pitft35-touchscreen-support-1657.patch new file mode 100644 index 0000000000..a5d8c0ce92 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0511-Add-Adafruit-pitft35-touchscreen-support-1657.patch @@ -0,0 +1,196 @@ +From 877d2ad66da4c7aba2db0ecb394a07a19ac2e374 Mon Sep 17 00:00:00 2001 +From: Scott Ellis <scott@jumpnowtek.com> +Date: Tue, 27 Sep 2016 04:29:00 -0400 +Subject: [PATCH] Add Adafruit pitft35 touchscreen support (#1657) + +The dts comes from the Adafruit repository + + https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic/blob/pitft/pitft35r-overlay.dts + +Reformatted slightly to match conventions in the pitft28-resistive-overlay. + +Signed-off-by: Scott Ellis <scott@jumpnowtek.com> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 12 ++ + .../dts/overlays/pitft35-resistive-overlay.dts | 121 +++++++++++++++++++++ + arch/arm/configs/bcm2709_defconfig | 1 + + arch/arm/configs/bcmrpi_defconfig | 1 + + 5 files changed, 136 insertions(+) + create mode 100644 arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -65,6 +65,7 @@ dtbo-$(RPI_DT_OVERLAYS) += piscreen2r.dt + dtbo-$(RPI_DT_OVERLAYS) += pitft22.dtbo + dtbo-$(RPI_DT_OVERLAYS) += pitft28-capacitive.dtbo + dtbo-$(RPI_DT_OVERLAYS) += pitft28-resistive.dtbo ++dtbo-$(RPI_DT_OVERLAYS) += pitft35-resistive.dtbo + dtbo-$(RPI_DT_OVERLAYS) += pps-gpio.dtbo + dtbo-$(RPI_DT_OVERLAYS) += pwm.dtbo + dtbo-$(RPI_DT_OVERLAYS) += pwm-2chan.dtbo +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -854,6 +854,18 @@ Params: speed Display + debug Debug output level {0-7} + + ++Name: pitft35-resistive ++Info: Adafruit PiTFT 3.5" resistive touch screen ++Load: dtoverlay=pitft35-resistive,<param>=<val> ++Params: speed Display SPI bus speed ++ ++ rotate Display rotation {0,90,180,270} ++ ++ fps Delay between frame updates ++ ++ debug Debug output level {0-7} ++ ++ + Name: pps-gpio + Info: Configures the pps-gpio (pulse-per-second time signal via GPIO). + Load: dtoverlay=pps-gpio,<param>=<val> +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts +@@ -0,0 +1,121 @@ ++/* ++ * Device Tree overlay for Adafruit PiTFT 3.5" resistive touch screen ++ * ++ */ ++ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; ++ ++ fragment@0 { ++ target = <&spi0>; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&spidev0>; ++ __overlay__ { ++ status = "disabled"; ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&spidev1>; ++ __overlay__ { ++ status = "disabled"; ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&gpio>; ++ __overlay__ { ++ pitft_pins: pitft_pins { ++ brcm,pins = <24 25>; ++ brcm,function = <0 1>; /* in out */ ++ brcm,pull = <2 0>; /* pullup none */ ++ }; ++ }; ++ }; ++ ++ fragment@4 { ++ target = <&spi0>; ++ __overlay__ { ++ /* needed to avoid dtc warning */ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ pitft: pitft@0{ ++ compatible = "himax,hx8357d"; ++ reg = <0>; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&pitft_pins>; ++ ++ spi-max-frequency = <32000000>; ++ rotate = <90>; ++ fps = <25>; ++ bgr; ++ buswidth = <8>; ++ dc-gpios = <&gpio 25 0>; ++ debug = <0>; ++ }; ++ ++ pitft_ts@1 { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ compatible = "st,stmpe610"; ++ reg = <1>; ++ ++ spi-max-frequency = <500000>; ++ irq-gpio = <&gpio 24 0x2>; /* IRQF_TRIGGER_FALLING */ ++ interrupts = <24 2>; /* high-to-low edge triggered */ ++ interrupt-parent = <&gpio>; ++ interrupt-controller; ++ ++ stmpe_touchscreen { ++ compatible = "st,stmpe-ts"; ++ st,sample-time = <4>; ++ st,mod-12b = <1>; ++ st,ref-sel = <0>; ++ st,adc-freq = <2>; ++ st,ave-ctrl = <3>; ++ st,touch-det-delay = <4>; ++ st,settling = <2>; ++ st,fraction-z = <7>; ++ st,i-drive = <0>; ++ }; ++ ++ stmpe_gpio: stmpe_gpio { ++ #gpio-cells = <2>; ++ compatible = "st,stmpe-gpio"; ++ /* ++ * only GPIO2 is wired/available ++ * and it is wired to the backlight ++ */ ++ st,norequest-mask = <0x7b>; ++ }; ++ }; ++ }; ++ }; ++ ++ fragment@5 { ++ target-path = "/soc"; ++ __overlay__ { ++ backlight { ++ compatible = "gpio-backlight"; ++ gpios = <&stmpe_gpio 2 0>; ++ default-on; ++ }; ++ }; ++ }; ++ ++ __overrides__ { ++ speed = <&pitft>,"spi-max-frequency:0"; ++ rotate = <&pitft>,"rotate:0"; ++ fps = <&pitft>,"fps:0"; ++ debug = <&pitft>,"debug:0"; ++ }; ++}; +--- a/arch/arm/configs/bcm2709_defconfig ++++ b/arch/arm/configs/bcm2709_defconfig +@@ -1116,6 +1116,7 @@ CONFIG_FB_TFT_BD663474=m + CONFIG_FB_TFT_HX8340BN=m + CONFIG_FB_TFT_HX8347D=m + CONFIG_FB_TFT_HX8353D=m ++CONFIG_FB_TFT_HX8357D=m + CONFIG_FB_TFT_ILI9163=m + CONFIG_FB_TFT_ILI9320=m + CONFIG_FB_TFT_ILI9325=m +--- a/arch/arm/configs/bcmrpi_defconfig ++++ b/arch/arm/configs/bcmrpi_defconfig +@@ -1123,6 +1123,7 @@ CONFIG_FB_TFT_BD663474=m + CONFIG_FB_TFT_HX8340BN=m + CONFIG_FB_TFT_HX8347D=m + CONFIG_FB_TFT_HX8353D=m ++CONFIG_FB_TFT_HX8357D=m + CONFIG_FB_TFT_ILI9163=m + CONFIG_FB_TFT_ILI9320=m + CONFIG_FB_TFT_ILI9325=m |