T113-S3执行poweroff关机后，如何关闭内部LDO?[T113_QA0007]

[tivon]

经测试poweroff命令关机后
AVCC 有 1.8V
LDOA 有 1.8V
LDOB 有 1.5V
我想关机后，这些内部LDO也自动关闭，该怎么做？

[tivon]

T113-S3关机最后一步，函数指针pm_power_off最终是调用哪个函数，大佬指点一下，谢谢

xen/enlighten.c:415:    pm_power_off = xen_power_off;
mach-iop32x/em7210.c:202:       pm_power_off = em7210_power_off;
mach-iop32x/n2100.c:356:        pm_power_off = n2100_power_off;
mach-iop32x/iq31244.c:296:              pm_power_off = ep80219_power_off;
mach-iop32x/glantank.c:202:     pm_power_off = glantank_power_off;
mach-highbank/highbank.c:146:   pm_power_off = highbank_power_off;
mach-u300/regulator.c:101:      pm_power_off = u300_pm_poweroff;
mach-s3c24xx/mach-jive.c:663:   pm_power_off = jive_power_off;
mach-s3c24xx/mach-gta02.c:528:  pm_power_off = gta02_poweroff;
mach-s3c24xx/mach-vr1000.c:304: pm_power_off = vr1000_power_off;
匹配到二进制文件 kernel/.reboot.c.swp
kernel/reboot.c:21:void (*pm_power_off)(void);
kernel/reboot.c:22:EXPORT_SYMBOL(pm_power_off);
kernel/reboot.c:123:    if (pm_power_off)
kernel/reboot.c:127:            pm_power_off();
mach-cns3xxx/core.c:393:        pm_power_off = cns3xxx_power_off;
mach-cns3xxx/cns3420vb.c:224:   pm_power_off = cns3xxx_power_off;
mach-orion5x/ts209-setup.c:317: pm_power_off = qnap_tsx09_power_off;
mach-orion5x/ls_hgl-setup.c:262:        pm_power_off = ls_hgl_power_off;
mach-orion5x/board-mss2.c:85:   pm_power_off = mss2_power_off;
mach-orion5x/dns323-setup.c:670:                pm_power_off = dns323a_power_off;
mach-orion5x/dns323-setup.c:687:                pm_power_off = dns323b_power_off;
mach-orion5x/dns323-setup.c:697:                pm_power_off = dns323c_power_off;
mach-orion5x/terastation_pro2-setup.c:352:      pm_power_off = tsp2_power_off;
mach-orion5x/ts409-setup.c:306: pm_power_off = qnap_tsx09_power_off;
mach-orion5x/kurobox_pro-setup.c:379:   pm_power_off = kurobox_pro_power_off;
mach-orion5x/net2big-setup.c:416:               pm_power_off = net2big_power_off;
mach-orion5x/mv2120-setup.c:228:        pm_power_off = mv2120_power_off;
mach-vt8500/vt8500.c:144:               pm_power_off = &vt8500_power_off;
mach-imx/mach-mx31moboard.c:524:        pm_power_off = mx31moboard_poweroff;
mach-imx/pm-imx6.c:631: if (pm_power_off) {
mach-imx/pm-imx6.c:632:         pr_warn("%s: pm_power_off already claimed  %p %ps!\n",
mach-imx/pm-imx6.c:633:                 __func__, pm_power_off, pm_power_off);
mach-imx/pm-imx6.c:637: pm_power_off = imx6_pm_stby_poweroff;
mach-ixp4xx/dsmg600-setup.c:289:        pm_power_off = dsmg600_power_off;
mach-ixp4xx/nslu2-setup.c:282:  pm_power_off = nslu2_power_off;
mach-ixp4xx/nas100d-setup.c:301:        pm_power_off = nas100d_power_off;
mach-s3c64xx/mach-smartq.c:305: pm_power_off = smartq_power_off;
mach-sa1100/simpad.c:395:       pm_power_off = simpad_power_off;
mach-sa1100/generic.c:322:      pm_power_off = sa1100_power_off;
mach-pxa/poodle.c:429:  pm_power_off = poodle_poweroff;
mach-pxa/tosa.c:911:    pm_power_off = tosa_poweroff;
mach-pxa/z2.c:730:      pm_power_off = z2_power_off;
mach-pxa/viper.c:942:   pm_power_off = viper_power_off;
mach-pxa/spitz.c:980:   pm_power_off = spitz_poweroff;
mach-pxa/corgi.c:720:   pm_power_off = corgi_poweroff;
mach-pxa/zeus.c:874:    pm_power_off = zeus_power_off;
mach-pxa/mioa701.c:751: pm_power_off = mioa701_poweroff;

[tivon]

@tivon 关不了，只能微调