麻雀 d1s，又又开新坑之7701s

[soso90]

前期工作：
1.使用荔枝派d1的驱动，包含dts以及驱动，仅改linux部分，uboot部分没有修改；
2.关闭uboot的lcd驱动
3.目前已经能显示，但是显示的图像变成“双屏”。spi的初始化已经在树莓派上验证过。能正常显示。应该是全志平台哪里配置不对。
目前尝试：
a.关闭uboot的lcd驱动，修改uboot的lcd的配置,将分辨率调成一致，问题依旧
b.目前这个方屏跟荔枝派不是一个型号。但是都是7701s。480*480.

以下是lcd的dts

&lcd0 {
	lcd_used        = <1>;
	lcd_driver_name = "st7701s_rgb";

	lcd_if          = <0>;
	lcd_hv_if       = <0>;

	lcd_width       = <70>;
	lcd_height      = <72>;
	lcd_x           = <480>;
	lcd_y           = <480>;
	lcd_dclk_freq   = <19>;
	lcd_hbp         = <60>;
	lcd_ht          = <612>;
	lcd_hspw        = <12>;
	lcd_vbp         = <18>;
	lcd_vt          = <520>;
	lcd_vspw        = <4>;

	lcd_backlight   = <50>;
	lcd_pwm_used    = <1>;
	lcd_pwm_ch      = <7>;
	lcd_pwm_freq    = <20000>;
	lcd_pwm_pol     = <1>;
	lcd_bright_curve_en = <0>;

	lcd_frm         = <1>;
	lcd_io_phase    = <0x0000>;
	lcd_gamma_en    = <0>;
	lcd_cmap_en     = <0>;
	lcd_hv_clk_phase= <0>;
	lcd_hv_sync_polarity= <0>;
	lcd_rb_swap          = <1>;

	lcd_power       = "vcc-lcd";
	lcd_pin_power   = "vcc-pd";
	lcd_gpio_0      = <&pio PE 0 GPIO_ACTIVE_HIGH>;
	lcd_gpio_1      = <&pio PE 1 GPIO_ACTIVE_HIGH>;
	lcd_gpio_2      = <&pio PE 2 GPIO_ACTIVE_HIGH>;) 
	lcd_gpio_3      = <&pio PE 3 GPIO_ACTIVE_HIGH>;
	pinctrl-0       = <&rgb18_pins_a>;
	pinctrl-1       = <&rgb18_pins_b>;
};

[soso90]

目前调整了时序，能正常显示，但是有明显的波纹。屏厂家建议是修改clk极性。但是在dts里面还没找到配置。非sync_polarity以及clk_phase.这clk极性是指哪个配置？

[soso90]

调整了极性后。能出图。现在开始进入触摸的坑：
目前启动后，i2c报错。dts按照荔枝派86盒子的配置配置触摸
[ 13.835167] input: fts_ts as /devices/platform/soc@3000000/twi2/i2c-2/2-0048/input/input3
[ 13.875092] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 13.911070] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x48, dev addr: 0x48)
[ 13.948346] sunxi_set_cur_vol_work()394 WARN: get power supply failed
[ 13.955742] fts_ts 2-0048: 2-0048 supply not found, using dummy regulator
[ 13.995184] fts_ts 2-0048: 2-0048 supply not found, using dummy regulator
[ 14.002891] debugfs: Directory '2-0048-' with parent 'reg-dummy-regulator-dummy' already present!
[ 14.237069] sunxi_set_cur_vol_work()394 WARN: get power supply failed
[ 14.315243] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.355227] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.395316] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.415094] sunxi_set_cur_vol_work()394 WARN: get power supply failed
[ 14.435258] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.471104] android_work: sent uevent USB_STATE=CONNECTED
[ 14.477626] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.505999] sunxi_set_cur_vol_work()394 WARN: get power supply failed
[ 14.565333] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.605320] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.645250] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.685332] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.725351] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.765251] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.805276] sunxi_i2c_do_xfer()1816 - [i2c2] incomplete xfer (status: 0x20, dev addr: 0x48)
[ 14.855092]