Re: [PATCH 1/2] dmaengine: qcom_bam_dma: Add v1.3.0 driver support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Apr 18, 2014 at 02:01:19AM +0300, Stanimir Vabanov wrote:

<snip>

> >  
> >  static const struct of_device_id bam_of_match[] = {
> > +	{ .compatible = "qcom,bam-v1.3.0", },
> >  	{ .compatible = "qcom,bam-v1.4.0", },
> 
> you could use the of_device_id::data field to switch between different
> versions.
> 
> I mean this:
> 
> static const struct of_device_id bam_of_match[] = {
> 	{ .compatible = "qcom,bam-v1.3.0", .data = &reg_offs_v1_3 },
>   	{ .compatible = "qcom,bam-v1.4.0", .data = &reg_offs_v1_4 },
> }
> 
> and during .probe you will get the correct offsets per version. It then
> could be assigned to a variable in bdev.
> 
> Then the defines could be:
> 
> #define BAM_CTRL(bdev)	(bdev->reg_offs->ctrl_offs + 0x00)
> 
> I'm not sure how many additional code this will be but it looks clearer.


That's not a bad idea.  I'll try this out and see how it looks.

-- 
sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux