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Date:	Sun, 8 Nov 2015 21:17:20 -0500
From:	Sinan Kaya <okaya@...eaurora.org>
To:	Timur Tabi <timur@...eaurora.org>, dmaengine@...r.kernel.org,
	cov@...eaurora.org, jcm@...hat.com
Cc:	agross@...eaurora.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 2/4] dma: add Qualcomm Technologies HIDMA management
 driver

On 11/8/2015 12:08 AM, Timur Tabi wrote:

On 11/8/2015 12:08 AM, Timur Tabi wrote:
> Sinan Kaya wrote:
>> +    val = val & ~(MAX_BUS_REQ_LEN_MASK << MAX_BUS_WR_REQ_BIT_POS);
>> +    val = val | (mgmtdev->max_write_request << MAX_BUS_WR_REQ_BIT_POS);
>> +    val = val & ~(MAX_BUS_REQ_LEN_MASK);
>> +    val = val | (mgmtdev->max_read_request);
>
> val &= ~MAX_BUS_REQ_LEN_MASK << MAX_BUS_WR_REQ_BIT_POS;
> val |= mgmtdev->max_write_request << MAX_BUS_WR_REQ_BIT_POS;
> val &= ~MAX_BUS_REQ_LEN_MASK;
> val |= mgmtdev->max_read_request;
>
>> +static const struct of_device_id hidma_mgmt_match[] = {
>> +    { .compatible = "qcom,hidma-mgmt", },
>> +    { .compatible = "qcom,hidma-mgmt-1.0", },
>> +    { .compatible = "qcom,hidma-mgmt-1.1", },
>> +    {},
>> +};
>
> I thought Rob said that he did NOT want to use version numbers in
> compatible strings.  And what's the difference between these three
> versions anyway?
>

This was already discussed here.

https://lkml.org/lkml/2015/11/2/689

The agreement was to use

compatible = "qcom,hidma-mgmt-1.1", "qcom,hidma-mgmt-1.0", 
"qcom,hidma-mgmt";

I'll be adding code for v1.1 specifically in the future.


-- 
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a 
Linux Foundation Collaborative Project
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