使用RTL8723BSwifi模块，驱动加载成功了，请问probe函数未被调用是怎么回事？

这个probe()函数，你是指hsmmc_omap.c里的mmc probe()函数么？

是WIFI的probe。
有些奇怪的是我在dts中配置的MMC电压是3.3v，为什么Log信息里是1.8V？会不会和这个有关系？
MMC的log如下
[ 1.795855] [huzz]mmc_of_parse
[ 1.798952] omap_hsmmc 481d8000.mmc: GPIO lookup for consumer cd
[ 1.798962] omap_hsmmc 481d8000.mmc: using device tree for GPIO lookup
[ 1.798976] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/ocp/mmc@481d8000[0]'
[ 1.798986] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/ocp/mmc@481d8000[0]'
[ 1.798994] omap_hsmmc 481d8000.mmc: using lookup tables for GPIO lookup
[ 1.799004] omap_hsmmc 481d8000.mmc: lookup for GPIO cd failed
[ 1.799016] omap_hsmmc 481d8000.mmc: GPIO lookup for consumer wp
[ 1.799025] omap_hsmmc 481d8000.mmc: using device tree for GPIO lookup
[ 1.799033] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@481d8000[0]'
[ 1.799042] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@481d8000[0]'
[ 1.799050] omap_hsmmc 481d8000.mmc: using lookup tables for GPIO lookup
[ 1.799058] omap_hsmmc 481d8000.mmc: lookup for GPIO wp failed
[ 1.799479] omap_hsmmc 481d8000.mmc: unable to get vmmc_aux regulator -19
[ 1.799502] omap_hsmmc 481d8000.mmc: unable to get pbias regulator -19
[ 1.799658] mmc1: clock 0Hz busmode 2 powermode 1 cs 0 Vdd 21 width 0 timing 0
[ 1.873713] omap_hsmmc 481d8000.mmc: Initial signal voltage of 1.8v
[ 1.893678] mmc1: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 21 width 0 timing 0
[ 1.913696] [huzz]drivers/mmc/core/core.c:mmc_rescan_try_freq
[ 1.919471] mmc1: mmc_rescan_try_freq: trying to init card at 400000 Hz
[ 1.926449] vdd_mpu: supplied by vmmcsd_fixed
mmc1: starting CMD52 arg 00000c00 flags 00000195
[ 2.488719] mmc1: req done (CMD52): -16: 00000000 00000000 00000000 00000000
[ 2.488738] mmc1: starting CMD52 arg 80000c08 flags 00000195
[ 2.987207] mmc1: req done (CMD52): -16: 00000000 00000000 00000000 00000000
[ 2.987223] mmc1: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 21 width 0 timing 0
[ 2.988241] mmc1: starting CMD0 arg 00000000 flags 000000c0
[ 2.988417] mmc1: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[ 2.989450] mmc1: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 21 width 0 timing 0
[ 2.990462] mmc1: starting CMD8 arg 000001aa flags 000002f5
[ 2.990826] mmc1: req done (CMD8): -110: 00000000 00000000 00000000 00000000
[ 2.990847] [huzz]drivers/mmc/core/sdio.c:mmc_attach_sdio
[ 2.996288] mmc1: starting CMD5 arg 00000000 flags 000002e1
[ 2.996654] mmc1: req failed (CMD5): -110, retrying...
[ 2.997017] mmc1: req failed (CMD5): -110, retrying...
[ 2.997379] mmc1: req failed (CMD5): -110, retrying...
[ 2.997734] mmc1: req done (CMD5): -110: 00000000 00000000 00000000 00000000
[ 2.997750] [huzz]drivers/mmc/core/sdio.c:mmc_attach_sdio:mmc_send_io_op_cond failed,-110
[ 3.006007] [huzz]drivers/mmc/core/sd.c:mmc_attach_sd
[ 3.011083] mmc1: starting CMD55 arg 00000000 flags 000000f5
[ 3.011442] mmc1: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 3.011463] mmc1: starting CMD55 arg 00000000 flags 000000f5
[ 3.011820] mmc1: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 3.011840] mmc1: starting CMD55 arg 00000000 flags 000000f5
[ 3.012196] mmc1: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 3.012219] mmc1: starting CMD55 arg 00000000 flags 000000f5
[ 3.012574] mmc1: req done (CMD55): -110: 00000000 00000000 00000000 00000000
[ 3.012594] [huzz]drivers/mmc/core/sd.c:mmc_attach_sd:mmc_send_app_op_cond failed -110
[ 3.020575] [huzz]drivers/mmc/core/mmc.c:mmc_attach_mmc
[ 3.025847] mmc1: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0
[ 3.025861] mmc1: starting CMD1 arg 00000000 flags 000000e1
[ 3.026220] mmc1: req done (CMD1): -110: 00000000 00000000 00000000 00000000
[ 3.026240] [huzz]drivers/mmc/core/mmc.c:mmc_attach_mmc:mmc_send_op_cond failed,-110
[ 3.034032] mmc1: clock 0Hz busmode 2 powermode 0 cs 0 Vdd 0 width 0 timing 0
[ 3.133682] omap_hsmmc 481d8000.mmc: disabled

这个wifi驱动文件ti,8723bs已经放到内核了吗？

是的，WIFI驱动由厂家提供。目前碰到的问题是
1.omap_hsmmc_set_capabilities这个函数中，val = OMAP_HSMMC_READ(host->base, CAPA)，寄存器CAPA的值MMC0和MMC2不一样，这个是为什么？
2.WIFI驱动加载过程中SDIO的数据通讯没问题，SD_CLK和SD_CMD都有信号，但是当初始化到CMD53这个命令的时候，没有返回值，卡住没响应了。
厂家说需要类似rescan的函数来控制，我移植了amlogic m805的sdio_reinit函数(我们另外的项目m805上，用的也是rtl8723bs的模块)，但是没有效果，依旧卡死在CMD53这个命令，Eggsy，请帮忙给分析一下，谢谢。
根据你发来的log，应该是在软件里面没有rescan,可参考platform_ARM_SUNnI_sdio.c
        
       rescan的代码需要找处理器的平台厂商要！
       有rescan的kernel的log参考如下：

      

这个问题和你另外一个帖子发的问题是一样的吧，我在那个帖子已经给你解释了，CMD53这个command 要看wifi能不能识别并且给出response。

zizhen 您好:
請問您GPIO3-14的接腳是接到RTL8723BSwifi模块的哪隻接腳呢?
至於SDIO的PINMUX部分想請問gpmc_csn3.mmc2_cmd為何是設定 0x88 ( PIN_OUTPUT | MUX_MODE3 ) ?
我GOOGLE到的資料都為 0x88 (PIN_INPUT_PULLUP | MUX_MODE3 )，想請問您其中的差別，感謝。