sysfs gpio name correspond to actual GPIO port

Hi all :

We want to use gpio15 -18 to control external logic, but we do not know how the sysfs GPIO name corresponds to the actual GPIO port.

as list:
gpio 184 corresponds to GPIO16_MDM_WAKE_AP ,how about GPIO15、GPIO17 and GPIO18 ?

Pin 13 - gpio38 - GPIO_PE6 - pe6
Pin 16 - gpio37 - AO_DMIC_IN_DAT_LVL - dmic3_dat_pe5
Pin 18 - gpio184 - GPIO16_MDM_WAKE_AP - modem_wake_ap_px0
Pin 29 - gpio219 - GPIO19_AUD_RST - gpio_x1_aud_pbb3
Pin 31 - gpio186 - GPIO9_MOTION_INT - motion_int_px2
Pin 32 - gpio36 - AO_DMIC_IN_CLK - dmic3_dat_pe5
Pin 33 - gpio63 - GPIO11_AP_WAKE_BT - ap_wake_nfc_ph7
pin 37 - gpio187 - GPIO8_ALS_PROX_INT - als_prox_int_px3

thank you very much!

See the kernel source file:

arch/arm/mach-tegra/gpio-names.h
#define TEGRA_GPIO_PB7          15
#define TEGRA_GPIO_PC1          17
#define TEGRA_GPIO_PC2          18

find it !!
thank you very much!!