14.DTS配置
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一、dts学习（注：pin 包括但不属于 gpio） 1.gpio0 node编写方法： gpio0: gpio@0 { pins_cmd_dat { pins = <PINMUX_GPIO0__FUNC_IDDIG>; //模式 slew-rate = <0>; //方向0--in 1--out bias-pull-down = <11>; //pull使能，并且pull-down【<11>功能保留，写<00>也行】 bias-disable; //pull失能，与bias-pull-down/up冲突 output-low; //设置输出low，可以output-high【方向为out才有效】 input-schmitt-enable = <0>; }; }; 2.配置pin脚用到的 Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\pinctrl\pinconf-generic.c static struct pinconf_generic_dt_params dt_params[] = { { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 }, { "bias-high-impedance", PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0 }, { "bias-bus-hold", PIN_CONFIG_BIAS_BUS_HOLD, 0 }, { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 }, { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 }, { "bias-pull-pin-default", PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, 1 }, { "drive-push-pull", PIN_CONFIG_DRIVE_PUSH_PULL, 0 }, { "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 }, { "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 }, { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, { "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 }, { "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 }, { "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 }, { "input-debounce", PIN_CONFIG_INPUT_DEBOUNCE, 0 }, { "power-source", PIN_CONFIG_POWER_SOURCE, 0 }, { "low-power-enable", PIN_CONFIG_LOW_POWER_MODE, 1 }, { "low-power-disable", PIN_CONFIG_LOW_POWER_MODE, 0 }, { "output-low", PIN_CONFIG_OUTPUT, 0, }, { "output-high", PIN_CONFIG_OUTPUT, 1, }, { "slew-rate", PIN_CONFIG_SLEW_RATE, 0}, };二、一个alsps的dts配置与调用示例（epl259x.c） 1.dts配置 1.1.mt6735m.dtsi /{ alsps:als_ps@0 { //alsps node compatible = "mediatek,als_ps"; }; }; 1.2.dts &alsps { //加&表示引用别处定义的node （dtsi中 alsps node） pinctrl-names = "pin_default", "pin_cfg"; // pinctrl-0 = <&alsps_intpin_default>; //默认配置 pinctrl-1 = <&alsps_intpin_cfg>; //alsps GPIO中断配置 status = "okay"; }; &pio { alsps_intpin_cfg: alspspincfg { //alsps_intpin_cfg,在driver中pinctrl_lookup_state()用到 pins_cmd_dat { pins = <PINMUX_GPIO4__FUNC_GPIO4>; //模式 slew-rate = <0>; //方向0--in 1--out bias-pull-up = <00>; }; }; alsps_intpin_default: alspsdefaultcfg { // }; }; 2.驱动中调用dts Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\misc\mediatek\alsps\epl259x\epl259x.c void epl_sensor_update_mode(struct i2c_client *client) { struct pinctrl *pinctrl; //定义一个pin脚指针 struct pinctrl_state *pins_default; // struct pinctrl_state *pins_cfg; struct platform_device *alsps_pdev = get_alsps_platformdev(); //获取平台设备alsps（dtsi的 alsps node会create as a platform device） pinctrl = devm_pinctrl_get(&alsps_pdev->dev); //从平台设备alsps 获取pin pins_default = pinctrl_lookup_state(pinctrl, "pin_default"); //获取 pin 默认配置 pins_cfg = pinctrl_lookup_state(pinctrl, "pin_cfg"); //获取 pin 配置 pinctrl_select_state(pinctrl, pins_cfg); //设置pin模式 } 3.adb 查看pin脚模式 cat /sys/class/misc/mygpio/pin PIN:MODE,PULL_SEL,DIN,DOUT,PULL EN,DIR,IES,SMT 0: 1 1 1 0 1 0 1 0 1: 0 0 0 0 1 0 1 0 三、i2c的dts配置与调用示例（gt1x_tpd.c） 1.codegen.dws与cust_i2c.dtsi Y:\code8\mt6737_M0_MP1_V2_84\out\target\product\len6737m_35_m0\obj\PRELOADER_OBJ\inc\cust_i2c.dtsi(codegen.dws编译生成) &i2c1 { //i2c控制器:i2c1 CAP_TOUCH@5D { //i2c从设备:CAP_TOUCH compatible = "mediatek,CAP_TOUCH"; // reg = <0x5D>; //i2c从设备地址 }; I2C_LCD_BIAS@3E { //i2c从设备:I2C_LCD_BIAS compatible = "mediatek,I2C_LCD_BIAS"; reg = <0x3E>; }; }; 2.gt1x_tpd.c Y:\code8\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\GT1X\gt1x_tpd.c static const struct of_device_id gt1x_dt_match[] = { {.compatible = "mediatek,CAP_TOUCH"}, //用于匹配平台设备"mediatek,CAP_TOUCH"与dts/dws相同 {}, }; static struct i2c_driver tpd_i2c_driver = { .probe = tpd_i2c_probe, .remove = tpd_i2c_remove, .detect = tpd_i2c_detect, .driver = { .name = GTP_DRIVER_NAME, .of_match_table = gt1x_dt_match, //用于匹配平台设备 }, .id_table = tpd_i2c_id, .address_list = (const unsigned short *)forces, }; 四、EINT 1.mt6735m.dtsi /{ //根节点 bus{ // touch: touch@ { //touch node 隶属于bus节点 compatible = "mediatek,mt6735-touch", "mediatek,mt6735m-touch"; vtouch-supply = <&mt_pmic_vgp1_ldo_reg>; }; } } 2.cust_eint.dtsi Y:\code8\mt6737_M0_MP1_V2_84\out\target\product\len6737m_35_m0\obj\PRELOADER_OBJ\inc\cust_eint.dtsi(codegen.dws编译生成) &touch { interrupt-parent = <&eintc>; interrupts = <10 IRQ_TYPE_EDGE_FALLING>; debounce = <10 0>; status = "okay"; }; 3.tp驱动中request_irq 3.1 gt9xx_driver.c Y:\code8\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\GT911\gt9xx_driver.c static int tpd_irq_registration(void) { struct device_node *node = NULL; node = of_find_compatible_node(NULL, NULL, "mediatek,cap_touch"); //从dts node中获取node信息 ... } 3.2 gt1x_tpd.c Y:\code8\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\GT1X\gt1x_tpd.c static int tpd_irq_registration(void) { struct device_node *node = NULL; node = of_find_matching_node(node, touch_of_match); //touch_of_match是一个匹配数组,匹配node of_property_read_u32_array(node , "debounce", ints, ARRAY_SIZE(ints)); //从dws/dts获取debounce信息 gpio_set_debounce(ints[0], ints[1]); //设置debounce信息（去抖动延时） tpd_touch_irq = irq_of_parse_and_map(node, 0); //获取irq number request_irq(tpd_touch_irq, (irq_handler_t)tpd_eint_interrupt_handler, //申请中断 IRQF_TRIGGER_RISING, "TOUCH_PANEL-eint", NULL);(node, 0); ... } #ifdef GTP_CONFIG_OF enable_irq(tpd_touch_irq); //enable_irq与disable_irq要成对存在 #ifdef GTP_CONFIG_OF disable_irq(tpd_touch_irq); Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\mtk_tpd.c struct of_device_id touch_of_match[] = { //touch_of_match是一个匹配数组 { .compatible = "mediatek,mt6735-touch", }, { .compatible = "mediatek,mt6580-touch", }, { .compatible = "mediatek,mt8173-touch", }, { .compatible = "mediatek,mt6755-touch", }, { .compatible = "mediatek,mt6797-touch", }, { .compatible = "mediatek,mt8163-touch", }, {}, };14_2.DTS-Touch_Panel1.dts中 1.1. mt6735m.dtsi Y:\code8\mt6737_M0_MP1_V2_84\out\target\product\len6737m_35_m0\obj\PRELOADER_OBJ\inc\cust_pmic.dtsi touch: touch@ { compatible = "mediatek,mt6735-touch", "mediatek,mt6735m-touch"; vtouch-supply = <&mt_pmic_vgp1_ldo_reg>; }; 1.2. Y:\code8\mt6737_M0_MP1_V2_84\out\target\product\len6737m_35_m0\obj\PRELOADER_OBJ\inc\cust_pmic.dtsi(codegen.dws生成) &touch { vtouch-supply = <&mt_pmic_vgp1_ldo_reg>; status = "okay"; }; 1.3. Y:\code8\mt6737_M0_MP1_V2_84\out\target\product\len6737m_35_m0\obj\PRELOADER_OBJ\inc\cust_i2c.dtsi(codegen.dws生成) &i2c1 { cap_touch@5d { compatible = "mediatek,cap_touch"; reg = <0x5d>; }; }； 1.4. Y:\code8\mt6737_M0_MP1_V2_84\out\target\product\len6737m_35_m0\obj\PRELOADER_OBJ\inc\cust_eint.dtsi(codegen.dws编译生成) &touch { interrupt-parent = <&eintc>; interrupts = <10 IRQ_TYPE_EDGE_FALLING>; debounce = <10 0>; status = "okay"; }; 1.5 len6737m_35_m0.dts &touch { tpd-resolution = <720 1280>; //tp分辨率 use-tpd-button = <1>; //tp虚拟按键使能 tpd-key-num = <3>; //tp虚拟按键个数 tpd-key-local= <139 172 158 0>; //3个虚拟按键参数（第4个为0） tpd-key-dim-local = <100 1550 100 100 360 1550 100 100 620 1550 100 100 0 0 0 0>; //3个虚拟按键参数（第4个为0） //4*4(x,y,weith,height) tpd-max-touch-num = <5>; //5点触控 tpd-filter-enable = <1>; //tp过滤器使能 tpd-filter-pixel-density = <124>; //tp过滤器像素密度 tpd-filter-custom-prameters = <0 0 0 0 0 0 0 0 0 0 0 0>; tpd-filter-custom-speed = <0 0 0>; pinctrl-names = "default", "state_eint_as_int", "state_eint_output0", "state_eint_output1", "state_rst_output0", "state_rst_output1"; pinctrl-0 = <&CTP_pins_default>; pinctrl-1 = <&CTP_pins_eint_as_int>; pinctrl-2 = <&CTP_pins_eint_output0>; pinctrl-3 = <&CTP_pins_eint_output1>; pinctrl-4 = <&CTP_pins_rst_output0>; pinctrl-5 = <&CTP_pins_rst_output1>; status = "okay"; }; 2.tp驱动中 2.1 request_irq Y:\code8\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\GT1X\gt1x_tpd.c static int tpd_irq_registration(void) { struct device_node *node = NULL; node = of_find_matching_node(node, touch_of_match); //touch_of_match是一个匹配数组 of_property_read_u32_array(node , "debounce", ints, ARRAY_SIZE(ints)); //从dws/dts获取debounce信息 gpio_set_debounce(ints[0], ints[1]); //设置debounce信息（去抖动延时） tpd_touch_irq = irq_of_parse_and_map(node, 0); //获取irq number request_irq(tpd_touch_irq, (irq_handler_t)tpd_eint_interrupt_handler, //申请中断 IRQF_TRIGGER_RISING, "TOUCH_PANEL-eint", NULL);(node, 0); ... } 2.2 tp获取property信息--of_property_read_u32() Y:\code8\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\GT1X\gt1x_tpd.c static int __init tpd_driver_init(void) { GTP_INFO(" Goodix touch panel driver init."); tpd_get_dts_info(); //tp获取dts信息---tpd_get_dts_info() if (tpd_driver_add(&tpd_device_driver) < 0) GTP_INFO("add generic driver failed\n"); return 0; } Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\mtk_tpd.c struct of_device_id touch_of_match[] = { //touch_of_match是一个匹配数组 { .compatible = "mediatek,mt6735-touch", }, { .compatible = "mediatek,mt6580-touch", }, { .compatible = "mediatek,mt8173-touch", }, { .compatible = "mediatek,mt6755-touch", }, { .compatible = "mediatek,mt6797-touch", }, { .compatible = "mediatek,mt8163-touch", }, {}, }; struct tpd_filter_t tpd_filter; struct tpd_dts_info tpd_dts_data; //在对应的tpd.h中用extern修改链接属性 void tpd_get_dts_info(void) { struct device_node *node1 = NULL; int key_dim_local[16], i; node1 = of_find_matching_node(node1, touch_of_match); //touch_of_match是一个匹配数组,匹配node if (node1) { //这是一个全局变量---tpd_dts_data（touchscreen\mediatek\tpd.h） of_property_read_u32(node1, "tpd-key-dim-local", &tpd_dts_data.touch_max_num); //获取node属性---of_property_read_u32(); of_property_read_u32(node1, "use-tpd-button", &tpd_dts_data.use_tpd_button); pr_info("[tpd]use-tpd-button = %d\n", tpd_dts_data.use_tpd_button); of_property_read_u32_array(node1, "tpd-resolution", //获取node属性数组---of_property_read_u32_array(); tpd_dts_data.tpd_resolution, ARRAY_SIZE(tpd_dts_data.tpd_resolution)); if (tpd_dts_data.use_tpd_button) { of_property_read_u32(node1, "tpd-key-num", &tpd_dts_data.tpd_key_num); of_property_read_u32_array(node1, "tpd-key-local", tpd_dts_data.tpd_key_local, ARRAY_SIZE(tpd_dts_data.tpd_key_local)); of_property_read_u32_array(node1, "tpd-key-dim-local", key_dim_local, ARRAY_SIZE(key_dim_local)); memcpy(tpd_dts_data.tpd_key_dim_local, key_dim_local, sizeof(key_dim_local)); for (i = 0; i < 4; i++) { pr_info("[tpd]key[%d].key_x = %d\n", i, tpd_dts_data.tpd_key_dim_local[i].key_x); pr_info("[tpd]key[%d].key_y = %d\n", i, tpd_dts_data.tpd_key_dim_local[i].key_y); pr_info("[tpd]key[%d].key_W = %d\n", i, tpd_dts_data.tpd_key_dim_local[i].key_width); pr_info("[tpd]key[%d].key_H = %d\n", i, tpd_dts_data.tpd_key_dim_local[i].key_height); } } of_property_read_u32(node1, "tpd-filter-enable", &tpd_dts_data.touch_filter.enable); if (tpd_dts_data.touch_filter.enable) { of_property_read_u32(node1, "tpd-filter-pixel-density", &tpd_dts_data.touch_filter.pixel_density); of_property_read_u32_array(node1, "tpd-filter-custom-prameters", (u32 *)tpd_dts_data.touch_filter.W_W, ARRAY_SIZE(tpd_dts_data.touch_filter.W_W)); of_property_read_u32_array(node1, "tpd-filter-custom-speed", tpd_dts_data.touch_filter.VECLOCITY_THRESHOLD, ARRAY_SIZE(tpd_dts_data.touch_filter.VECLOCITY_THRESHOLD)); } memcpy(&tpd_filter, &tpd_dts_data.touch_filter, sizeof(tpd_filter)); pr_info("[tpd]tpd-filter-enable = %d, pixel_density = %d\n", tpd_filter.enable, tpd_filter.pixel_density); } else { pr_err("[tpd]%s can't find touch compatible custom node\n", __func__); } } Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\tpd.h struct tpd_key_dim_local { int key_x; int key_y; int key_width; int key_height; }; struct tpd_filter_t { int enable; /*0: disable, 1: enable*/ int pixel_density; /*XXX pixel/cm*/ int W_W[3][4];/*filter custom setting prameters*/ unsigned int VECLOCITY_THRESHOLD[3];/*filter speed custom settings*/ }; struct tpd_dts_info { int tpd_resolution[2]; int touch_max_num; int use_tpd_button; int tpd_key_num; int tpd_key_local[4]; struct tpd_key_dim_local tpd_key_dim_local[4]; struct tpd_filter_t touch_filter; }; extern struct tpd_dts_info tpd_dts_data; //这是一个全局变量 2.3 tp获取pinctrl信息--pinctrl_lookup_state() len6737m_35_m0.dts &touch { ... pinctrl-names = "default", "state_eint_as_int", "state_eint_output0", "state_eint_output1", "state_rst_output0", "state_rst_output1"; pinctrl-0 = <&CTP_pins_default>; pinctrl-1 = <&CTP_pins_eint_as_int>; pinctrl-2 = <&CTP_pins_eint_output0>; pinctrl-3 = <&CTP_pins_eint_output1>; pinctrl-4 = <&CTP_pins_rst_output0>; pinctrl-5 = <&CTP_pins_rst_output1>; status = "okay"; }; &pio { CTP_pins_default: eint0default { }; CTP_pins_eint_as_int: eint@0 { pins_cmd_dat { pins = <PINMUX_GPIO10__FUNC_GPIO10>; slew-rate = <0>; bias-disable; }; }; CTP_pins_eint_output0: eintoutput0 { pins_cmd_dat { pins = <PINMUX_GPIO10__FUNC_GPIO10>; slew-rate = <1>; output-low; }; }; CTP_pins_eint_output1: eintoutput1 { pins_cmd_dat { pins = <PINMUX_GPIO10__FUNC_GPIO10>; slew-rate = <1>; output-high; }; }; CTP_pins_rst_output0: rstoutput0 { pins_cmd_dat { pins = <PINMUX_GPIO62__FUNC_GPIO62>; slew-rate = <1>; output-low; }; }; CTP_pins_rst_output1: rstoutput1 { pins_cmd_dat { pins = <PINMUX_GPIO62__FUNC_GPIO62>; slew-rate = <1>; output-high; }; }; }; Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\mtk_tpd.c int tpd_get_gpio_info(struct platform_device *pdev) { int ret; TPD_DEBUG("[tpd %d] mt_tpd_pinctrl+++++++++++++++++\n", pdev->id); pinctrl1 = devm_pinctrl_get(&pdev->dev); //... if (IS_ERR(pinctrl1)) { ret = PTR_ERR(pinctrl1); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl1!\n"); return ret; } pins_default = pinctrl_lookup_state(pinctrl1, "default"); //获取pinctrl属性信息---pinctrl_lookup_state() if (IS_ERR(pins_default)) { ret = PTR_ERR(pins_default); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl default %d!\n", ret); } eint_as_int = pinctrl_lookup_state(pinctrl1, "state_eint_as_int"); if (IS_ERR(eint_as_int)) { ret = PTR_ERR(eint_as_int); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl state_eint_as_int!\n"); return ret; } eint_output0 = pinctrl_lookup_state(pinctrl1, "state_eint_output0"); if (IS_ERR(eint_output0)) { ret = PTR_ERR(eint_output0); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl state_eint_output0!\n"); return ret; } eint_output1 = pinctrl_lookup_state(pinctrl1, "state_eint_output1"); if (IS_ERR(eint_output1)) { ret = PTR_ERR(eint_output1); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl state_eint_output1!\n"); return ret; } rst_output0 = pinctrl_lookup_state(pinctrl1, "state_rst_output0"); if (IS_ERR(rst_output0)) { ret = PTR_ERR(rst_output0); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl state_rst_output0!\n"); return ret; } rst_output1 = pinctrl_lookup_state(pinctrl1, "state_rst_output1"); if (IS_ERR(rst_output1)) { ret = PTR_ERR(rst_output1); dev_err(&pdev->dev, "fwq Cannot find touch pinctrl state_rst_output1!\n"); return ret; } TPD_DEBUG("[tpd%d] mt_tpd_pinctrl----------\n", pdev->id); return 0; } 2.4 LCM ON / OFF 时候---tp要suspend / resume Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\mtk_tpd.c static struct notifier_block tpd_fb_notifier; //定义一个tpd_fb_notifier变量实体 static int tpd_probe(struct platform_device *pdev) //platform_device与platform_driver probe tpd_fb_notifier.notifier_call = tpd_fb_notifier_callback; //函数指针--指向tpd_fb_notifier_callback()函数 } static void touch_resume_workqueue_callback(struct work_struct *work) { TPD_DEBUG("GTP touch_resume_workqueue_callback\n"); g_tpd_drv->resume(NULL); tpd_suspend_flag = 0; } static int tpd_fb_notifier_callback(struct notifier_block *self, unsigned long event, void *data) { struct fb_event *evdata = NULL; int blank; int err = 0; TPD_DEBUG("tpd_fb_notifier_callback\n"); evdata = data; /* If we aren't interested in this event, skip it immediately ... */ if (event != FB_EVENT_BLANK) return 0; blank = *(int *)evdata->data; TPD_DMESG("fb_notify(blank=%d)\n", blank); switch (blank) { case FB_BLANK_UNBLANK: //按power亮屏--为了不卡亮屏时间--创建了一个wakequeue来处理tp_resume TPD_DMESG("LCD ON Notify\n"); if (g_tpd_drv && tpd_suspend_flag) { err = queue_work(touch_resume_workqueue, &touch_resume_work); if (!err) { TPD_DMESG("start touch_resume_workqueue failed\n"); return err; } } break; case FB_BLANK_POWERDOWN: //按power灭屏--touch会run suspend（休眠） TPD_DMESG("LCD OFF Notify\n"); if (g_tpd_drv) err = cancel_work_sync(&touch_resume_work); if (!err) TPD_DMESG("cancel touch_resume_workqueue err = %d\n", err); g_tpd_drv->suspend(NULL); tpd_suspend_flag = 1; break; default: break; } return 0; } 2.5 驱动中如何操作GPIO口输出0/1 ----- tpd_gpio_output() Y:\code8\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\GT1X\gt1x_tpd.c int gt1x_power_switch(s32 state) { tpd_gpio_output(GTP_RST_PORT, 0); tpd_gpio_output(GTP_INT_PORT, 0); ... } Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\input\touchscreen\mediatek\mtk_tpd.c static DEFINE_MUTEX(tpd_set_gpio_mutex); void tpd_gpio_as_int(int pin) { mutex_lock(&tpd_set_gpio_mutex); TPD_DEBUG("[tpd]tpd_gpio_as_int\n"); if (pin == 1) pinctrl_select_state(pinctrl1, eint_as_int); mutex_unlock(&tpd_set_gpio_mutex); } void tpd_gpio_output(int pin, int level) { mutex_lock(&tpd_set_gpio_mutex); TPD_DEBUG("[tpd]tpd_gpio_output pin = %d, level = %d\n", pin, level); if (pin == 1) { if (level) pinctrl_select_state(pinctrl1, eint_output1); else pinctrl_select_state(pinctrl1, eint_output0); } else { if (level) pinctrl_select_state(pinctrl1, rst_output1); else pinctrl_select_state(pinctrl1, rst_output0); } mutex_unlock(&tpd_set_gpio_mutex); } 14_3.DTS-Vibrator1.dts中 len6737m_35_m0.dts /{ vibrator0:vibrator@0 { compatible = "mediatek,vibrator"; vib_timer = <25>; vib_limit = <9>; vib_vol= <5>; }; }2.Projectconfig.mk CUSTOM_KERNEL_VIBRATOR = vibrator 3.len6737m_35_m0_debug_defconfig、len6737m_35_m0_defconfig CONFIG_MTK_VIBRATOR=y 4.vibrator 驱动中（日后遇到再补充） Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\misc\mediatek\vibrator\vibrator_drv.c Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\misc\mediatek\vibrator\mt6735\vibrator.c 14_4.DTS-SPI1.dts中 1.1 mt6735m.dtsi spi0:spi@1100a000 { compatible = "mediatek,mt6735m-spi"; cell-index = <0>; spi-padmacro = <0>; reg = <0x1100a000 0x1000>; interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_LOW>; }; SPI1@0x1100A000 { cell-index = <0>; spi-padmacro = <0>; compatible = "mediatek,SPI1"; reg = <0x1100A000 0x1000>; interrupts = <0 118 0x8>; }; 1.2 len6737m_35_m0_debug_defconfig、len6737m_35_m0_defconfig CONFIG_MTK_SPI=y 1.3 codegen.dws GPIO口初始化设置 GPIO66---SPI0_CKA GPIO67---SPI0_MIA GPIO68---SPI0_MOA //SPI0_CSB 1.4 Y:\code10\mt6737_M0_MP1_V2_84\kernel-3.18\drivers\spi\mediatek\mt6735\spi-dev.c static struct spi_board_info spi_board_devs[] __initdata = { [0] = { .modalias = "spi-ut", .bus_num = 0, //SPI0 控制器0 .chip_select = 1, //SPI0.1 从设备1 .mode = SPI_MODE_3, //SPI模式3 }, }; static int __init spi_dev_init(void) { SPIDEV_LOG("SPI_DEV_INIT.\n"); spi_register_board_info(spi_board_devs, ARRAY_SIZE(spi_board_devs)); return spi_register_driver(&spi_test_driver); } static struct spi_driver spi_test_driver = { .driver = { .name = "test_spi", .bus = &spi_bus_type, .owner = THIS_MODULE, }, .probe = spi_test_probe, .remove = spi_test_remove, .id_table = &spi_id_table, }; 14_5.DTS-Light1.dts中 1.1 mt6735m.dtsi led0:led@0 { compatible = "mediatek,red"; led_mode = <0>; //mt65xx_led_mode 之 MT65XX_LED_MODE_NONE data = <1>; //mt65xx_led_pmic 之 MT65XX_LED_MODE_PWM pwm_config = <0 0 0 0 0>; }; ... led6:led@6 { compatible = "mediatek,lcd-backlight"; led_mode = <5>; //MT65XX_LED_MODE_CUST_LCM data = <1>; pwm_config = <0 0 0 0 0>; }; 1.2 Y:\code8\mt6737_M0_MP1_V2_84\vendor\mediatek\proprietary\bootable\bootloader\lk\target\len6737m_35_m0\cust_leds.c static struct cust_mt65xx_led cust_led_list[MT65XX_LED_TYPE_TOTAL] = { {"red", MT65XX_LED_MODE_NONE, -1,{0,0,0,0,0}}, {"green", MT65XX_LED_MODE_NONE, -1,{0,0,0,0,0}}, {"blue", MT65XX_LED_MODE_NONE, -1,{0,0,0,0,0}}, {"jogball-backlight", MT65XX_LED_MODE_NONE, -1,{0,0,0,0,0}}, {"keyboard-backlight",MT65XX_LED_MODE_NONE, -1,{0,0,0,0,0}}, {"button-backlight", MT65XX_LED_MODE_NONE, -1,{0,0,0,0,0}}, {"lcd-backlight", MT65XX_LED_MODE_CUST_BLS_PWM, (int)disp_bls_set_backlight,{0}}, }; 1.3 Y:\code8\mt6737_M0_MP1_V2_84\vendor\mediatek\proprietary\bootable\bootloader\lk\target\len6737m_35_m0\inc\cust_leds.h enum mt65xx_led_mode { MT65XX_LED_MODE_NONE, //0 MT65XX_LED_MODE_PWM, //1 MT65XX_LED_MODE_GPIO, //2 MT65XX_LED_MODE_PMIC, //3 MT65XX_LED_MODE_CUST, //4 MT65XX_LED_MODE_CUST_LCM, //5 MT65XX_LED_MODE_CUST_BLS_PWM//6 }; enum mt65xx_led_pmic { MT65XX_LED_PMIC_BUTTON=0, //0 MT65XX_LED_PMIC_LCD, //1 MT65XX_LED_PMIC_LCD_ISINK, MT65XX_LED_PMIC_LCD_BOOST, MT65XX_LED_PMIC_NLED_ISINK4, MT65XX_LED_PMIC_NLED_ISINK5, MT65XX_LED_PMIC_NLED_ISINK0, MT65XX_LED_PMIC_NLED_ISINK1, MT65XX_LED_PMIC_NLED_ISINK2, MT65XX_LED_PMIC_NLED_ISINK3, MT65XX_LED_PMIC_NLED_ISINK01 }; 阅读全文
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