could not find pctldev for node
[drivers/of/platform.c of_platform_device_create_pdata 190] of_device_add(device register) np->name = gpmc
[ 1.464175] omap-gpmc 50000000.gpmc: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_gpmc_pins, deferring probe
[ 1.477940] of_irq_parse_raw: /ocp/interrupt-controller@48200000:0000006d
[ 1.485269] of_irq_parse_raw: /ocp/interrupt-controller@48200000:0000006d
[ 1.492598] [drivers/of/platform.c of_platform_device_create_pdata 190] of_device_add(device register) np->name = sham
[ 1.503992] of_irq_parse_raw: /ocp/interrupt-controller@48200000:00000067
[ 1.511339] of_irq_parse_raw: /ocp/interrupt-controller@48200000:00000067
[ 1.518656] [drivers/of/platform.c of_platform_device_create_pdata 190] of_device_add(device register) np->name = aes
[ 1.529988] of_irq_parse_raw: /ocp/interrupt-controller@48200000:0000006f
[ 1.537304] of_irq_parse_raw: /ocp/interrupt-controller@48200000:0000006f
[ 1.544639] [drivers/of/platform.c of_platform_device_create_pdata 190] of_device_add(device register) np->name = rng
[ 1.556656] hw-breakpoint: debug architecture 0x4 unsupported.
[ 1.601836] of_irq_parse_raw: /ocp/interrupt-controller@48200000:0000000c
[ 1.609437] of_irq_parse_raw: /ocp/interrupt-controller@48200000:0000000e
[ 1.623345] edma 49000000.edma: TI EDMA DMA engine driver
[ 1.632334] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
[ 1.645906] media: Linux media interface: v0.10
[ 1.650737] Linux video capture interface: v2.00
[ 1.655623] pps_core: LinuxPPS API ver. 1 registered
am335x linux启动打印： could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_gpmc_pins, deferring probe ，是什么原因造成的？？？
