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No i2c nodes coming in linux sysfs, required kernel configs?
How does the likely/unlikely macros in the Linux kernel works and what is their benefit?Why is Linux called a monolithic kernel?How is the Linux kernel tested ?I2C linux driversLinux device driver for multiple bussesSELinux rules for i2c files in sysfs in AndroidChange I2C address Linux driver kernelLinux I2C Kernel DriverLinux I2C kernel driver bindingI2C Kernel driver binding
I have a Hikey LeMaker 620 on which I am trying to enable I2C as currently I am not getting /dev/i2c* nodes.
I am using the docs here : https://github.com/96boards/documentation/blob/master/consumer/hikey/hikey620/build/linux-kernel.md
I see that
I2C_DESIGNWARE_PLATFORM
I2C_CHARDEV
are already enabled, still I do not see anything in /sys/bus/i2c/devices/ and as a result my i2cdetect fails saying “/dev/i2c/0 : No such file or directory”
Are there any kernel configs which I am missing?
EDIT
Here are the dmesg logs
/ # dmesg | grep i2c
[ 0.251154] i2c-core: driver [dummy] registered
[ 0.284233] i2c-core: driver [pca953x] registered
[ 0.286078] i2c-core: driver [sec_pmic] registered
[ 0.287137] i2c_designware f7100000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c0_pmx_func, deferring probe
[ 0.287167] i2c_designware f7101000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c1_pmx_func, deferring probe
[ 0.287188] i2c_designware f7102000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c2_pmx_func, deferring probe
[ 0.323590] i2c-core: driver [cs2000-cp] registered
[ 0.328647] i2c-core: driver [fan53555-regulator] registered
[ 0.340913] i2c-core: driver [cros-ec-i2c] registered
[ 0.341005] i2c-core: driver [max77620] registered
[ 0.341054] i2c-core: driver [rk808] registered
[ 0.351637] i2c-core: driver [usb3503] registered
[ 0.353610] i2c-core: driver [rtc-ds3232] registered
[ 0.354842] i2c /dev entries driver
[ 0.355782] i2c-core: driver [pca954x] registered
[ 0.356294] i2c-core: driver [bq27xxx-battery] registered
[ 0.501408] i2c-core: driver [hmc5843] registered
[ 2.209817] i2c_designware f7100000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.218809] i2c_designware f7101000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.227621] i2c_designware f7102000.i2c: Unknown Synopsys component type: 0x00000000
linux-kernel config i2c
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
add a comment |
I have a Hikey LeMaker 620 on which I am trying to enable I2C as currently I am not getting /dev/i2c* nodes.
I am using the docs here : https://github.com/96boards/documentation/blob/master/consumer/hikey/hikey620/build/linux-kernel.md
I see that
I2C_DESIGNWARE_PLATFORM
I2C_CHARDEV
are already enabled, still I do not see anything in /sys/bus/i2c/devices/ and as a result my i2cdetect fails saying “/dev/i2c/0 : No such file or directory”
Are there any kernel configs which I am missing?
EDIT
Here are the dmesg logs
/ # dmesg | grep i2c
[ 0.251154] i2c-core: driver [dummy] registered
[ 0.284233] i2c-core: driver [pca953x] registered
[ 0.286078] i2c-core: driver [sec_pmic] registered
[ 0.287137] i2c_designware f7100000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c0_pmx_func, deferring probe
[ 0.287167] i2c_designware f7101000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c1_pmx_func, deferring probe
[ 0.287188] i2c_designware f7102000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c2_pmx_func, deferring probe
[ 0.323590] i2c-core: driver [cs2000-cp] registered
[ 0.328647] i2c-core: driver [fan53555-regulator] registered
[ 0.340913] i2c-core: driver [cros-ec-i2c] registered
[ 0.341005] i2c-core: driver [max77620] registered
[ 0.341054] i2c-core: driver [rk808] registered
[ 0.351637] i2c-core: driver [usb3503] registered
[ 0.353610] i2c-core: driver [rtc-ds3232] registered
[ 0.354842] i2c /dev entries driver
[ 0.355782] i2c-core: driver [pca954x] registered
[ 0.356294] i2c-core: driver [bq27xxx-battery] registered
[ 0.501408] i2c-core: driver [hmc5843] registered
[ 2.209817] i2c_designware f7100000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.218809] i2c_designware f7101000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.227621] i2c_designware f7102000.i2c: Unknown Synopsys component type: 0x00000000
linux-kernel config i2c
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
There are quite a few things that could go wrong, and not much info to figure out what's happening here. Is there anything i2c related in kernel logs? In sysfs?
– domen
Mar 7 at 9:13
@domen : Please see the edit
– Insane Coder
Mar 7 at 10:06
Could be some pinmux configuration error, device tree error/mismatch, or just an issue with the driver. Quick web search of those errors doesn't seem to produce much here. Hopefully someone with experience on this platform comes across this.
– domen
Mar 7 at 10:25
add a comment |
I have a Hikey LeMaker 620 on which I am trying to enable I2C as currently I am not getting /dev/i2c* nodes.
I am using the docs here : https://github.com/96boards/documentation/blob/master/consumer/hikey/hikey620/build/linux-kernel.md
I see that
I2C_DESIGNWARE_PLATFORM
I2C_CHARDEV
are already enabled, still I do not see anything in /sys/bus/i2c/devices/ and as a result my i2cdetect fails saying “/dev/i2c/0 : No such file or directory”
Are there any kernel configs which I am missing?
EDIT
Here are the dmesg logs
/ # dmesg | grep i2c
[ 0.251154] i2c-core: driver [dummy] registered
[ 0.284233] i2c-core: driver [pca953x] registered
[ 0.286078] i2c-core: driver [sec_pmic] registered
[ 0.287137] i2c_designware f7100000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c0_pmx_func, deferring probe
[ 0.287167] i2c_designware f7101000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c1_pmx_func, deferring probe
[ 0.287188] i2c_designware f7102000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c2_pmx_func, deferring probe
[ 0.323590] i2c-core: driver [cs2000-cp] registered
[ 0.328647] i2c-core: driver [fan53555-regulator] registered
[ 0.340913] i2c-core: driver [cros-ec-i2c] registered
[ 0.341005] i2c-core: driver [max77620] registered
[ 0.341054] i2c-core: driver [rk808] registered
[ 0.351637] i2c-core: driver [usb3503] registered
[ 0.353610] i2c-core: driver [rtc-ds3232] registered
[ 0.354842] i2c /dev entries driver
[ 0.355782] i2c-core: driver [pca954x] registered
[ 0.356294] i2c-core: driver [bq27xxx-battery] registered
[ 0.501408] i2c-core: driver [hmc5843] registered
[ 2.209817] i2c_designware f7100000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.218809] i2c_designware f7101000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.227621] i2c_designware f7102000.i2c: Unknown Synopsys component type: 0x00000000
linux-kernel config i2c
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
I have a Hikey LeMaker 620 on which I am trying to enable I2C as currently I am not getting /dev/i2c* nodes.
I am using the docs here : https://github.com/96boards/documentation/blob/master/consumer/hikey/hikey620/build/linux-kernel.md
I see that
I2C_DESIGNWARE_PLATFORM
I2C_CHARDEV
are already enabled, still I do not see anything in /sys/bus/i2c/devices/ and as a result my i2cdetect fails saying “/dev/i2c/0 : No such file or directory”
Are there any kernel configs which I am missing?
EDIT
Here are the dmesg logs
/ # dmesg | grep i2c
[ 0.251154] i2c-core: driver [dummy] registered
[ 0.284233] i2c-core: driver [pca953x] registered
[ 0.286078] i2c-core: driver [sec_pmic] registered
[ 0.287137] i2c_designware f7100000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c0_pmx_func, deferring probe
[ 0.287167] i2c_designware f7101000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c1_pmx_func, deferring probe
[ 0.287188] i2c_designware f7102000.i2c: could not find pctldev for node /soc/pinmux@f7010000/i2c2_pmx_func, deferring probe
[ 0.323590] i2c-core: driver [cs2000-cp] registered
[ 0.328647] i2c-core: driver [fan53555-regulator] registered
[ 0.340913] i2c-core: driver [cros-ec-i2c] registered
[ 0.341005] i2c-core: driver [max77620] registered
[ 0.341054] i2c-core: driver [rk808] registered
[ 0.351637] i2c-core: driver [usb3503] registered
[ 0.353610] i2c-core: driver [rtc-ds3232] registered
[ 0.354842] i2c /dev entries driver
[ 0.355782] i2c-core: driver [pca954x] registered
[ 0.356294] i2c-core: driver [bq27xxx-battery] registered
[ 0.501408] i2c-core: driver [hmc5843] registered
[ 2.209817] i2c_designware f7100000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.218809] i2c_designware f7101000.i2c: Unknown Synopsys component type: 0x00000000
[ 2.227621] i2c_designware f7102000.i2c: Unknown Synopsys component type: 0x00000000
linux-kernel config i2c
linux-kernel config i2c
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
edited Mar 7 at 10:06
Insane Coder
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
asked Mar 7 at 4:13
Insane CoderInsane Coder
3,072743101
3,072743101
There are quite a few things that could go wrong, and not much info to figure out what's happening here. Is there anything i2c related in kernel logs? In sysfs?
– domen
Mar 7 at 9:13
@domen : Please see the edit
– Insane Coder
Mar 7 at 10:06
Could be some pinmux configuration error, device tree error/mismatch, or just an issue with the driver. Quick web search of those errors doesn't seem to produce much here. Hopefully someone with experience on this platform comes across this.
– domen
Mar 7 at 10:25
add a comment |
There are quite a few things that could go wrong, and not much info to figure out what's happening here. Is there anything i2c related in kernel logs? In sysfs?
– domen
Mar 7 at 9:13
@domen : Please see the edit
– Insane Coder
Mar 7 at 10:06
Could be some pinmux configuration error, device tree error/mismatch, or just an issue with the driver. Quick web search of those errors doesn't seem to produce much here. Hopefully someone with experience on this platform comes across this.
– domen
Mar 7 at 10:25
There are quite a few things that could go wrong, and not much info to figure out what's happening here. Is there anything i2c related in kernel logs? In sysfs?
– domen
Mar 7 at 9:13
There are quite a few things that could go wrong, and not much info to figure out what's happening here. Is there anything i2c related in kernel logs? In sysfs?
– domen
Mar 7 at 9:13
@domen : Please see the edit
– Insane Coder
Mar 7 at 10:06
@domen : Please see the edit
– Insane Coder
Mar 7 at 10:06
Could be some pinmux configuration error, device tree error/mismatch, or just an issue with the driver. Quick web search of those errors doesn't seem to produce much here. Hopefully someone with experience on this platform comes across this.
– domen
Mar 7 at 10:25
Could be some pinmux configuration error, device tree error/mismatch, or just an issue with the driver. Quick web search of those errors doesn't seem to produce much here. Hopefully someone with experience on this platform comes across this.
– domen
Mar 7 at 10:25
add a comment |
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There are quite a few things that could go wrong, and not much info to figure out what's happening here. Is there anything i2c related in kernel logs? In sysfs?
– domen
Mar 7 at 9:13
@domen : Please see the edit
– Insane Coder
Mar 7 at 10:06
Could be some pinmux configuration error, device tree error/mismatch, or just an issue with the driver. Quick web search of those errors doesn't seem to produce much here. Hopefully someone with experience on this platform comes across this.
– domen
Mar 7 at 10:25