[yocto] [meta-raspberrypi][PATCH v3 6/6] pitft: Add PiTFT22 support

Tue Mar 1 21:35:09 PST 2016

2016-03-02 00:50 skrev Andrei Gherzan: 

> On Sun, Feb 28, 2016 at
02:46:13PM +0100, Petter Mabäcker wrote:
> 
>> - Add support to build
overlays for PiTFT22 in the kernel. - Setup a basic configuration for
the driver The PiTFT22 support is optional and can be enabled by adding
below in local.conf: MACHINE_FEATURES += "pitft pitft22" [Support #70]
Signed-off-by: Petter Mabäcker <petter at technux.se> --- README | 9 ++
conf/machine/include/rpi-base.inc | 1 +
recipes-bsp/bootfiles/rpi-config_git.bb | 7 ++
...dts-add-overlay-for-pitft22-in-linux-3.18.patch | 110
+++++++++++++++++++++ .../0001-dts-add-overlay-for-pitft22.patch | 110
+++++++++++++++++++++ recipes-kernel/linux/linux-raspberrypi_3.18.bb | 5
+- recipes-kernel/linux/linux-raspberrypi_4.1.bb | 4 +- 7 files changed,
243 insertions(+), 3 deletions(-) create mode 100644
recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22-in-linux-3.18.patch
create mode 100644
recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22.patch

diff --git a/README b/README index 6a6c398..4114ccc 100644 --- a/README
+++ b/README @@ -170,6 +170,15 @@ MACHINE_FEATURES += "pitft" NOTE: To
get this working the overlay for the PiTFT model must be build, added
and specified as well (dtoverlay=<driver> in config.txt) +Below is a
list of currently supported PiTFT models in meta-raspberrypi, +the
modelname should be added as a MACHINE_FEATURES in local.conf like
below: + + - MACHINE_FEATURES += "pitft <modelname>" + +List of
currently supported models +----------------------------------- +pitft22
+ 2.L. Images =========== * rpi-hwup-image diff --git
a/conf/machine/include/rpi-base.inc b/conf/machine/include/rpi-base.inc
index c8f6cd6..27f09ad 100644 --- a/conf/machine/include/rpi-base.inc
+++ b/conf/machine/include/rpi-base.inc @@ -31,6 +31,7 @@
KERNEL_DEVICETREE ?= " overlays/iqaudio-dac-overlay.dtb
overlays/iqaudio-dacplus-overlay.dtb overlays/lirc-rpi-overlay.dtb +
overlays/pitft22-overlay.dtb overlays/pps-gpio-overlay.dtb
overlays/w1-gpio-overlay.dtb overlays/w1-gpio-pullup-overlay.dtb diff
--git a/recipes-bsp/bootfiles/rpi-config_git.bb
b/recipes-bsp/bootfiles/rpi-config_git.bb index 236a359..631ff42 100644
--- a/recipes-bsp/bootfiles/rpi-config_git.bb +++
b/recipes-bsp/bootfiles/rpi-config_git.bb @@ -16,6 +16,7 @@ S =
"${WORKDIR}/git" PR = "r4"
PITFT="${@bb.utils.contains("MACHINE_FEATURES", "pitft", "1", "0", d)}"
+PITFT22="${@bb.utils.contains("MACHINE_FEATURES", "pitft22", "1", "0",
d)}" inherit deploy @@ -80,6 +81,12 @@ do_deploy() { echo
"dtparam=i2c1=on" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt echo
"dtparam=i2c_arm=on" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt fi + +
# PiTFT22 display support + if [ "${PITFT22}" = "1" ]; then + echo "#
Enable PITFT22 display" >>${DEPLOYDIR}/bcm2835-bootfiles/config.txt +
echo "dtoverlay=pitft22,rotate=270,speed=32000000,txbuflen=32768"
>>${DEPLOYDIR}/bcm2835-bootfiles/config.txt + fi } addtask deploy before
do_package after do_install diff --git
a/recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22-in-linux-3.18.patch
b/recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22-in-linux-3.18.patch
new file mode 100644 index 0000000..fa73599 --- /dev/null +++
b/recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22-in-linux-3.18.patch
@@ -0,0 +1,110 @@ +From 2f44861e2a2d651a9aa62a75343a032fee33e93b Mon
Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petter=20Mab=C3=A4cker?=
<petter at technux.se> +Date: Fri, 8 Jan 2016 09:02:44 +0100 +Subject:
[PATCH] dts: add overlay for pitft22 in linux 3.18 +MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding:
8bit + +Upstream-Status: Pending + +Add the pitft22 overlay from
adafruit Adafruit-Pi-Kernel-o-Matic repo:
+https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic [1] +
+Signed-off-by: Petter Mabäcker <petter at technux.se> +--- +
arch/arm/boot/dts/overlays/Makefile | 1 + +
arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69
++++++++++++++++++++++++++ + 2 files changed, 70 insertions(+) + create
mode 100755 arch/arm/boot/dts/overlays/pitft22-overlay.dts + +diff --git
a/arch/arm/boot/dts/overlays/Makefile
b/arch/arm/boot/dts/overlays/Makefile +index c766616..1eaaf81 100644
+--- a/arch/arm/boot/dts/overlays/Makefile ++++
b/arch/arm/boot/dts/overlays/Makefile +@@ -27,6 +27,7 @@
dtb-$(RPI_DT_OVERLAYS) += mcp2515-can0-overlay.dtb +
dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) +=
mz61581-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
++dtb-$(RPI_DT_OVERLAYS) += pitft22-overlay.dtb + dtb-$(RPI_DT_OVERLAYS)
+= pitft28-resistive-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) +=
pps-gpio-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += rpi-dac-overlay.dtb
+diff --git a/arch/arm/boot/dts/overlays/pitft22-overlay.dts
b/arch/arm/boot/dts/overlays/pitft22-overlay.dts +new file mode 100755
+index 0000000..894ba22 +--- /dev/null ++++
b/arch/arm/boot/dts/overlays/pitft22-overlay.dts +@@ -0,0 +1,69 @@ ++/*
++ * Device Tree overlay for pitft by Adafruit ++ * ++ */ ++ ++/dts-v1/;
++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2835", "brcm,bcm2708",
"brcm,bcm2709"; ++ ++ fragment at 0 { ++ target = <&spi0>; ++ __overlay__ {
++ status = "okay"; ++ ++ spidev at 0{ ++ status = "disabled"; ++ }; ++ ++
spidev at 1{ ++ status = "disabled"; ++ }; ++ }; ++ }; ++ ++ fragment at 1 {
++ target = <&gpio>; ++ __overlay__ { ++ pitft_pins: pitft_pins { ++
brcm,pins = <25>; ++ brcm,function = <1>; /* out */ ++ brcm,pull = <0>;
/* none */ ++ }; ++ }; ++ }; ++ ++ fragment at 2 { ++ target = <&spi0>; ++
__overlay__ { ++ /* needed to avoid dtc warning */ ++ #address-cells =
<1>; ++ #size-cells = <0>; ++ ++ pitft: pitft at 0{ ++ compatible =
"ilitek,ili9340"; ++ 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>; ++ }; ++ ++ }; ++ }; ++ ++ __overrides__ {
++ speed = <&pitft>,"spi-max-frequency:0"; ++ rotate =
<&pitft>,"rotate:0"; ++ fps = <&pitft>,"fps:0"; ++ debug =
<&pitft>,"debug:0"; ++ }; ++}; +-- +1.9.1 + diff --git
a/recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22.patch
b/recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22.patch
new file mode 100644 index 0000000..e6e0a84 --- /dev/null +++
b/recipes-kernel/linux/linux-raspberrypi/0001-dts-add-overlay-for-pitft22.patch
@@ -0,0 +1,110 @@ +From a28bd410022b32a64e208f04b45add6326990332 Mon
Sep 17 00:00:00 2001 +From: =?UTF-8?q?Petter=20Mab=C3=A4cker?=
<petter at technux.se> +Date: Fri, 8 Jan 2016 09:02:44 +0100 +Subject:
[PATCH] dts: add overlay for pitft22 +MIME-Version: 1.0 +Content-Type:
text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit +
+Upstream-Status: Pending + +Add the pitft22 overlay from adafruit
Adafruit-Pi-Kernel-o-Matic repo:
+https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic [1] +
+Signed-off-by: Petter Mabäcker <petter at technux.se> +--- +
arch/arm/boot/dts/overlays/Makefile | 1 + +
arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69
++++++++++++++++++++++++++ + 2 files changed, 70 insertions(+) + create
mode 100755 arch/arm/boot/dts/overlays/pitft22-overlay.dts + +diff --git
a/arch/arm/boot/dts/overlays/Makefile
b/arch/arm/boot/dts/overlays/Makefile +index 1a60e9c..a2535a2 100644
+--- a/arch/arm/boot/dts/overlays/Makefile ++++
b/arch/arm/boot/dts/overlays/Makefile +@@ -37,6 +37,7 @@
dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) +=
mz61581-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb +
dtb-$(RPI_DT_OVERLAYS) += piscreen2r-overlay.dtb
++dtb-$(RPI_DT_OVERLAYS) += pitft22-overlay.dtb + dtb-$(RPI_DT_OVERLAYS)
+= pitft28-capacitive-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) +=
pitft28-resistive-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) +=
pps-gpio-overlay.dtb +diff --git
a/arch/arm/boot/dts/overlays/pitft22-overlay.dts
b/arch/arm/boot/dts/overlays/pitft22-overlay.dts +new file mode 100755
+index 0000000..894ba22 +--- /dev/null ++++
b/arch/arm/boot/dts/overlays/pitft22-overlay.dts +@@ -0,0 +1,69 @@ ++/*
++ * Device Tree overlay for pitft by Adafruit ++ * ++ */ ++ ++/dts-v1/;
++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2835", "brcm,bcm2708",
"brcm,bcm2709"; ++ ++ fragment at 0 { ++ target = <&spi0>; ++ __overlay__ {
++ status = "okay"; ++ ++ spidev at 0{ ++ status = "disabled"; ++ }; ++ ++
spidev at 1{ ++ status = "disabled"; ++ }; ++ }; ++ }; ++ ++ fragment at 1 {
++ target = <&gpio>; ++ __overlay__ { ++ pitft_pins: pitft_pins { ++
brcm,pins = <25>; ++ brcm,function = <1>; /* out */ ++ brcm,pull = <0>;
/* none */ ++ }; ++ }; ++ }; ++ ++ fragment at 2 { ++ target = <&spi0>; ++
__overlay__ { ++ /* needed to avoid dtc warning */ ++ #address-cells =
<1>; ++ #size-cells = <0>; ++ ++ pitft: pitft at 0{ ++ compatible =
"ilitek,ili9340"; ++ 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>; ++ }; ++ ++ }; ++ }; ++ ++ __overrides__ {
++ speed = <&pitft>,"spi-max-frequency:0"; ++ rotate =
<&pitft>,"rotate:0"; ++ fps = <&pitft>,"fps:0"; ++ debug =
<&pitft>,"debug:0"; ++ }; ++}; +-- +1.9.1 + diff --git
a/recipes-kernel/linux/linux-raspberrypi_3.18.bb
b/recipes-kernel/linux/linux-raspberrypi_3.18.bb index a1fe6b4..9234f70
100644 --- a/recipes-kernel/linux/linux-raspberrypi_3.18.bb +++
b/recipes-kernel/linux/linux-raspberrypi_3.18.bb @@ -1,8 +1,9 @@
LINUX_VERSION ?= "3.18.16" SRCREV =
"1bb18c8f721ef674a447f3622273f2e2de7a205c" -SRC_URI =
"git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-3.18.y"
- +SRC_URI =
"git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-3.18.y +
file://0001-dts-add-overlay-for-pitft22-in-linux-3.18.patch [2] + "
require linux-raspberrypi.inc # Create missing out of tree 'overlays'
directory prior to install step diff --git
a/recipes-kernel/linux/linux-raspberrypi_4.1.bb
b/recipes-kernel/linux/linux-raspberrypi_4.1.bb index 3a3cf40..b657c85
100644 --- a/recipes-kernel/linux/linux-raspberrypi_4.1.bb +++
b/recipes-kernel/linux/linux-raspberrypi_4.1.bb @@ -1,6 +1,8 @@
LINUX_VERSION ?= "4.1.10" SRCREV =
"b74df9228c27f55361c065bc5dbfba88861cc771" -SRC_URI =
"git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-4.1.y"
+SRC_URI =
"git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-4.1.y +
file://0001-dts-add-overlay-for-pitft22.patch [3] + " require
linux-raspberrypi.inc
> 
> Cheers Peter!
> 
> Based on this patch I
pushed a v4:
> - resolve conflicts
> - use patches specific for a
certain kernel version in separate directories -
> easier to visualize
>

> What do you think?
> 
> --
> Andrei Gherzan

Hi Andrei, 

I think it
makes sense. Please go ahead with these changes. 

BR Petter 

Petter
Mabäcker

Technux <petter at technux.se>
www.technux.se



Links:
------
[1]
https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic
[2]
file://0001-dts-add-overlay-for-pitft22-in-linux-3.18.patch
[3]
file://0001-dts-add-overlay-for-pitft22.patch
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