On 10/24/2016 02:50 PM, David Lechner wrote:
On 10/24/2016 10:50 AM, David Lechner wrote:
On 10/24/2016 06:58 AM, Sekhar Nori wrote:
On Saturday 22 October 2016 12:06 AM, David Lechner wrote:
+&ehrpwm1 {
+ status = "disabled";
Hmm, disabled? Can you add this node when you actually use it?
Not sure why I have this disabled. Like the gpios, the pwms can be used
via sysfs, so I would like to leave them.
Now I remember why these are disabled. The clock matching is broken.
Only the first ehrpwm and the first ecap get clocks. The others fail.
I can change these to "okay". It will just result in a kernel error
message until the clocks are fixed.
correction: it is not the clocks that are broken. it is the device names.
In arch/arm/mach-davinci/da8xx-dt.c, we have...
OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f00000, "ehrpwm", NULL),
OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f02000, "ehrpwm", NULL),
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f06000, "ecap", NULL),
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap", NULL),
OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap", NULL),
Which causes each device to have the same device node name. This causes
sysfs errors because it is trying to register a second device at the
same sysfs path.
If you change the names here, then the device do not work because the
clock lookup fails.
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