步步高S3平板GPIO映射

 GPIOs 0-31, platform/ff770000.pinctrl, gpio0:		0xb8
 gpio-4   (pt7c4337            ) in  hi
 gpio-5   (power               ) in  hi
 gpio-6   (CHARGER_INT         ) in  hi
 gpio-7   (?                   ) in  lo
 gpio-10  (act8846_pmic_hold   ) out hi
 gpio-11  (CHARGE_CTR1         ) out hi
 gpio-12  (OTG_DRVVBUS         ) out lo
 gpio-13  (CHG_EN              ) out lo
 gpio-14  (host_drv_gpio       ) out hi
 gpio-15  (?                   ) in  hi
 gpio-16  (?                   ) in  hi
 gpio-17  (camera power        ) out lo
 gpio-18  (PWRIN_DET           ) in  hi

GPIOs 32-63, platform/ff770000.pinctrl, gpio1:		0x2

GPIOs 64-95, platform/ff770000.pinctrl, gpio2:		0xb9
 gpio-66  (camsys_gpio         ) out lo		2
 gpio-73  (camsys_gpio         ) out lo		9
 gpio-76  (camera powerdown    ) in  lo		12
 gpio-78  (camsys_gpio         ) out lo		14
 gpio-79  (camsys_gpio         ) out lo		15
 gpio-80  (?                   ) in  lo		16
 gpio-81  (?                   ) in  lo		17

GPIOs 96-127, platform/ff770000.pinctrl, gpio3:		0x11f
 gpio-125 (touchkey_led        ) out lo		29

GPIOs 128-159, platform/ff770000.pinctrl, gpio4:	0x11b
 gpio-147 (bcm4334_rts         ) in  hi		19
 gpio-154 (bcm4334_wake        ) in  hi		26
 gpio-155 (bcm4334_poweron     ) out lo		27
 gpio-156 (wlan_default_wlan_po) out hi		28
 gpio-159 (bcm4334_wake_host   ) in  hi		31

GPIOs 160-191, platform/ff770000.pinctrl, gpio5:	0xd4
 gpio-177 (lcd_enmp            ) in  lo		17
 gpio-178 (lcd_vsmp            ) in  hi		18

GPIOs 192-223, platform/ff770000.pinctrl, gpio6:	0x87
 gpio-201 (?                   ) in  hi		9
 gpio-202 (?                   ) in  hi		10

GPIOs 224-255, platform/ff770000.pinctrl, gpio7:	0x3
 gpio-226 (spkamp_1            ) out lo		2
 gpio-227 (spkamp_2            ) out lo		3
 gpio-228 (GTP_ID_PORT         ) in  lo		4
 gpio-229 (GTP_RST_PORT        ) in  hi		5
 gpio-230 (GTP_INT_IRQ         ) in  lo		6
 gpio-231 (headset_gpio        ) in  hi		7
 gpio-233 (rfkill-power-gpio   ) out lo		9
 gpio-234 (mipi_lcd_enz        ) out hi		10
 gpio-235 (mipi_lcd_enf        ) out hi		11
 gpio-236 (MICBIAS1_EN         ) in  lo		12
 gpio-237 (camsys_gpio         ) out hi		13
 gpio-238 (codec_ldo1_en       ) in  hi		14
 gpio-239 (codec_1v8_en        ) out hi		15
 gpio-240 (boardid             ) in  hi		16
 gpio-241 (?                   ) in  hi		17
 gpio-242 (?                   ) in  hi		18
 gpio-243 (ls_ap3220           ) in  hi		19
 gpio-244 (gs_lis3dh           ) in  lo		20
 gpio-245 (hall wakeup         ) in  hi		21

GPIOs 256-287, platform/ff770000.pinctrl, gpio8:	0xbd
 gpio-258 (mipi_lcd_te         ) in  hi		2
 gpio-260 (?                   ) in  hi		4
 gpio-261 (?                   ) in  hi		5
 gpio-263 (mipi_lcd_rst        ) in  hi		7
 gpio-264 (lcd_en              ) out hi		8
 gpio-265 (lcd_vsys            ) out lo		9

GPIOs 288-319, platform/ff770000.pinctrl, gpio15: