How to handle parameter variation across different boards but same platform
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From: Vaibhav Hiremath <hidden>
Date: 2012-07-05 05:42:32
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alsa-devel
On 7/4/2012 7:57 PM, Mark Brown wrote:
On Wed, Jul 04, 2012 at 02:17:48PM +0000, Hebbar, Gururaja wrote:quoted
On Wed, Jul 04, 2012 at 19:31:18, Mark Brown wrote:quoted
quoted
If these are totally different boards they should have different machine IDs set so machine_is_() should identify. If that isn't there then you need to do something custom to your products to identify the boards further.quoted
They are different boards with same SoC (AM33xx). So they both are true for machine_is_am33xx().
What if the device only supports Linux boot from DT, where we set machine_desc.nr = ~0 ?? Does machine ID still gets set? May be I am missing something... As part of my debugging, on AM335xEVM platform machine_is_am33xx() returns false, since the value of machine_desc.nr is set to ~0. Thanks, Vaibhav
That's not how this stuff is supposed to work - machine is the board, you should have cpu_is_() for identifying the SoC.quoted
We have a means to detect the type of board but in arch/arm/mach-omap2/ board file. However, I believe it is not recommended to call boards api inside drivers.Only for generic drivers, board specific drivers are obviously board specific. The point is that you shouldn't make something that could run on many boards depend on an API specific to a particular board. _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source at linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source