touch: goodix: adapt driver code

Revert Makefile;
Adapt driver code for this project.

Change-Id: Ib8f66d1a86cf396d9e43cdb6e1f9ef66595bc4db
Signed-off-by: Fei Mao <[email protected]>

Kconfig

@@ -1,20 +0,0 @@
-#
-# Goodix touchscreen driver configuration
-#
-menuconfig TOUCHSCREEN_GOODIX_BRL
-	tristate "Goodix berlin touchscreen"
-	help
-	  Say Y here if you have a Goodix berlin series touch controller
-	  to your system.
-	  
-	  If build module, say M.
-	  If unsure, say N.
-
-if TOUCHSCREEN_GOODIX_BRL
-
-config TOUCHSCREEN_GOODIX_BRL_SPI
-	bool "support SPI bus connection" 
-	help
-		Say Y here if the touchscreen is connected via SPI bus.
-
-endif

LICENSE

@@ -1,339 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
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Makefile

@@ -1,12 +1,15 @@
-obj-$(CONFIG_TOUCHSCREEN_GOODIX_BRL) += goodix_core.o
-goodix_core-y := \
-				goodix_brl_i2c.o \
-				goodix_brl_spi.o \
-				goodix_ts_core.o \
-				goodix_brl_hw.o \
-				goodix_cfg_bin.o \
-				goodix_ts_utils.o \
-				goodix_brl_fwupdate.o \
-				goodix_ts_gesture.o \
-				goodix_ts_inspect.o \
-				goodix_ts_tools.o
+
+KBUILD_OPTIONS+= TOUCH_ROOT=$(KERNEL_SRC)/$(M)
+
+all:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) modules $(KBUILD_OPTIONS)
+
+modules_install:
+	$(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(M) modules_install
+
+%:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) $@ $(KBUILD_OPTIONS)
+
+clean:
+	rm -f *.o *.ko *.mod.c *.mod.o *~ .*.cmd Module.symvers
+	rm -rf .tmp_versions

NOTICE

@@ -93,3 +93,20 @@
  * You should have received a copy of the GNU General Public License along with
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
+/*
+ * Goodix Touchscreen Driver
+ * Copyright (C) 2020 - 2021 Goodix, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be a reference
+ * to you, when you are integrating the GOODiX's CTP IC into your system,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */

docs/Porting_Guide.md

@@ -1,192 +0,0 @@
-# **Berlin Driver Porting Guide**
-
-## **Introduce**
-Berlin series driver is currently support BerlinA(GT9897), BerlinB(GT9966, GT7986). And support I2C or SPI connection.
-
-## **Driver source file prepare**
-1. Move driver source code to $KERNEL_SRC/drivers/input/touchscree/
-2. Change $KERNEL_SRC/drivers/input/touchscree/Makefile  
-	Add this line to the Makefile
-	```
-	obj-y += goodix_berlin_driver/
-	```
-3. Change $KERNEL_SRC/drivers/input/touchscree/Kconfg  
-	Add this line to the Kconfig
-	```
-	source "drivers/input/touchscreen/goodix_berlin_driver/Kconfig"
-	```
-
-## **Add device declaration in the board devicetree**
-Please add Goodix touch device declaration info in the board devicetree, you can refer the Appendix goodix-ts-i2c-dtsi or goodix-ts-spi-dtsi  to see how to set deivce properties.
-
-## **Build driver**
-When build kernel you will see the following promt to let you confirm how to build the driver. This driver support built-in kernel or build as modules.
-
-**Setting up in the menu:**
-1. In the $KERNEL_SRC directory, exec `make menuconfig`, then select  
-`Device Drivers ---> Input device support ---> Touchscreens --->`  
-2. Find `Goodix berlin touchscreen` menu, you can select `<*>`(build in kernel) or `<M>`(build a module).
-3. Enter `Goodix berlin touchscreen`, you can see `support SPI bus connection` item. If 
-you are on SPI connection, select `<*>`, or on I2C connection.
-
-**Setting up in the defconfig file:**
-1. Add the following in you defconfig file.
-	```
-	CONFIG_TOUCHSCREEN_GOODIX_BRL=y
-	```
-	or
-	```
-	CONFIG_TOUCHSCREEN_GOODIX_BRL=m
-	```
-2. If you are on SPI connection, add the following.
-	```
-	CONFIG_TOUCHSCREEN_GOODIX_BRL_SPI=y
-	```
-
-## **Appendix**
-
-**goodix-ts-i2c-dtsi**
-
-```dts
-devicetree binding for Goodix i2c touchdriver
-Required properties:
-- compatible: device & driver matching.
-	* for berlin series touch device, souch as "goodix,gt9897", "goodix,gt9966"
-
-- reg: i2c client address, value can be 0x14 or 0x5d. please refer to datasheet.
-- goodix,reset-gpio: reset gpio.
-- goodix,irq-gpio: interrupt gpio. 
-- goodix,irq-flags: irq trigger type config, value should be:
-	       1 - rising edge,
-	       2 - falling edge,
-	       4 - high level,
-	       5 - low level.
-- goodix,panel-max-x: max resolution of x direction.
-- goodix,panel-max-y: max resolution of y direction.
-- goodix,panel-max-w: panel max width value.
-- goodix,panel-max-p: pen device max pressure value.
-
-Optional properties:
-- goodix,avdd-name: set name of regulator.
-- avdd-supply: power supply for the touch device.
-  example of regulator:
-	goodix,avdd-name = "avdd";
-	avdd-supply = <&pm8916_l15>;
-- iovdd-supply: power supply for digital io circuit
-  example of regulator:
-	goodix,iovdd-name = "iovdd";
-	iovdd-supply = <&pm8916_l16>;
-- goodix,pen-enable: set this property if you want support stylus.
-	goodix,pen-enable;
-- goodix,firmware-name: set firmware file name, if not configured, use the default name.
-- goodix,config-name: set config file name, if not configured, use the default name.
-Example 1:
-goodix-berlin@5d {
-	compatible = "goodix,gt9897";
-	reg = <0x5d>;
-	goodix,reset-gpio = <&msm_gpio 12 0x0>;
-	goodix,irq-gpio = <&msm_gpio 13 0x2800>;
-	goodix,irq-flags = <2>; /* 1:trigger rising, 2:trigger falling;*/
-	goodix,panel-max-x = <720>;
-	goodix,panel-max-y = <1280>;
-	goodix,panel-max-w = <255>;
-};
-
-Example 2:
-goodix-berlin@5d {
-	compatible = "goodix,gt9966";
-	goodix,avdd-name = "avdd";
-	avdd-supply = <&pm8916_l15>;
-	goodix,iovdd-name = "iovdd";
-	iovdd-supply = <&pm8916_l16>;
-
-	reg = <0x5d>;
-	goodix,reset-gpio = <&msm_gpio 12 0x0>;
-	goodix,irq-gpio = <&msm_gpio 13 0x2800>;
-	goodix,irq-flags = <2>; /* 1:trigger rising, 2:trigger falling;*/
-	goodix,panel-max-x = <720>;
-	goodix,panel-max-y = <1280>;
-	goodix,panel-max-w = <255>;
-	goodix,panel-max-p = <4096>; /* max pressure that pen device supported */
-	goodix,pen-enable; /* support active stylus device*/
-
-	goodix,firmware-name = "goodix_firmware.bin";
-	goodix,config-name = "goodix_cfg_group.bin";
-};
-```
-
-**goodix-ts-spi-dtsi**
-
-```dts
-devicetree binding for Goodix spi touchdriver
-
-Required properties:
-- compatible: device & driver matching.
-	* for berlin series touch device, souch as "goodix,gt9897T"
-
-- spi-max-frequency: set spi transfer speed.
-- reg: depend on CS gpio.
-- goodix,reset-gpio: reset gpio.
-- goodix,irq-gpio: interrupt gpio.
-- goodix,irq-flags: irq trigger type config, value should be:
-	       1 - rising edge,
-	       2 - falling edge,
-	       4 - high level,
-	       5 - low level.
-- goodix,panel-max-x: max resolution of x direction.
-- goodix,panel-max-y: max resolution of y direction.
-- goodix,panel-max-w: panel max width value.
-- goodix,panel-max-p: pen device max pressure value.
-
-Optional properties:
-- goodix,avdd-name: set name of regulator.
-- avdd-supply: power supply for the touch device.
-  example of regulator:
-	goodix,avdd-name = "avdd";
-	avdd-supply = <&pm8916_l15>;
-- iovdd-supply: power supply for digital io circuit
-  example of regulator:
-	goodix,iovdd-name = "iovdd";
-	iovdd-supply = <&pm8916_l16>;
-- goodix,pen-enable: set this property if you want support stylus.
-	goodix,pen-enable;
-- goodix,firmware-name: set firmware file name, if not configured, use the default name.
-- goodix,config-name: set config file name, if not configured, use the default name.	
-Example 1:
-goodix-berlin@0 {
-	compatible = "goodix,gt9897";
-	reg = <0>;
-	spi-max-frequency = <1000000>;
-	goodix,reset-gpio = <&msm_gpio 12 0x0>;
-	goodix,irq-gpio = <&msm_gpio 13 0x2800>;
-	goodix,irq-flags = <2>; /* 1:trigger rising, 2:trigger falling;*/
-	goodix,panel-max-x = <720>;
-	goodix,panel-max-y = <1280>;
-	goodix,panel-max-w = <255>;
-};
-
-Example 2:
-goodix-berlin@0 {
-	compatible = "goodix,gt9966S";
-	reg = <0>;
-	spi-max-frequency = <1000000>;
-
-	goodix,avdd-name = "avdd";
-	avdd-supply = <&pm8916_l15>;
-	goodix,iovdd-name = "iovdd";
-	iovdd-supply = <&pm8916_l16>;
-
-	goodix,reset-gpio = <&msm_gpio 12 0x0>;
-	goodix,irq-gpio = <&msm_gpio 13 0x2800>;
-	goodix,irq-flags = <2>; /* 1:trigger rising, 2:trigger falling;*/
-	goodix,panel-max-x = <720>;
-	goodix,panel-max-y = <1280>;
-	goodix,panel-max-w = <255>;
-	goodix,panel-max-p = <4096>; /* max pressure that pen device supported */
-	goodix,pen-enable; /* support active stylus device*/
-
-	goodix,firmware-name = "goodix_firmware.bin";
-	goodix,config-name = "goodix_cfg_group.bin";	
-};
-```
-

goodix_berlin_driver/Kconfig

@@ -1,20 +0,0 @@
-#
-# Goodix touchscreen driver configuration
-#
-menuconfig TOUCHSCREEN_GOODIX_BRL
-	tristate "Goodix berlin touchscreen"
-	help
-	  Say Y here if you have a Goodix berlin series touch controller
-	  to your system.
-	  
-	  If build module, say M.
-	  If unsure, say N.
-
-if TOUCHSCREEN_GOODIX_BRL
-
-config TOUCHSCREEN_GOODIX_BRL_SPI
-	bool "support SPI bus connection" 
-	help
-		Say Y here if the touchscreen is connected via SPI bus.
-
-endif

goodix_berlin_driver/Makefile

@@ -1,12 +0,0 @@
-obj-$(CONFIG_TOUCHSCREEN_GOODIX_BRL) += goodix_core.o
-goodix_core-y := \
-				goodix_brl_i2c.o \
-				goodix_brl_spi.o \
-				goodix_ts_core.o \
-				goodix_brl_hw.o \
-				goodix_cfg_bin.o \
-				goodix_ts_utils.o \
-				goodix_brl_fwupdate.o \
-				goodix_ts_gesture.o \
-				goodix_ts_inspect.o \
-				goodix_ts_tools.o