linux-kernel - Re: [PATCH v6 2/2] mmc: sdhci-msm: Initial support for MSM chipsets

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Date:	Sun, 6 Oct 2013 15:45:53 +0300
From:	"Georgi Djakov" <gdjakov@...sol.com>
To:	"Bjorn Andersson" <bjorn@...o.se>
Cc:	"Georgi Djakov" <gdjakov@...sol.com>, linux-mmc@...r.kernel.org,
	"Chris Ball" <cjb@...top.org>,
	"Grant Likely" <grant.likely@...aro.org>,
	"Rob Herring" <rob.herring@...xeda.com>,
	devicetree@...r.kernel.org, mark.rutland@....com,
	swarren@...dotorg.org, ian.campbell@...rix.com, rob@...dley.net,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	"Asutosh Das" <asutoshd@...eaurora.org>,
	"Venkat Gopalakrishnan" <venkatg@...eaurora.org>,
	"Sahitya Tummala" <stummala@...eaurora.org>,
	"Subhash Jadavani" <subhashj@...eaurora.org>
Subject: Re: [PATCH v6 2/2] mmc: sdhci-msm: Initial support for MSM chipsets

Hi Bjorn,

> Hi Georgi,
>
> Thanks for working on this, unfortunately it seems like I need to port
> the rpm regulators to be able to test this.
> But I did find that...
>

Yes, the regulators support is still missing upstream. Until then, a basic
testing can be done by bypassing the regulators init part in order to use
the power on defaults for regulators and maybe also clocks.

> On Fri, Sep 27, 2013 at 9:57 AM, Georgi Djakov <gdjakov@...sol.com> wrote:
>> ...
>> +static irqreturn_t sdhci_msm_pwr_irq(int irq, void *data)
>> +{
>> +       struct sdhci_msm_host *msm_host = (struct sdhci_msm_host *)data;
>> ...
>> +static int sdhci_msm_probe(struct platform_device *pdev)
>> +{
>> +       struct sdhci_host *host;
>> +       struct sdhci_msm_host *msm_host;
>> ...
>> +       ret = devm_request_threaded_irq(&pdev->dev, msm_host->pwr_irq,
>> NULL,
>> +                                       sdhci_msm_pwr_irq, IRQF_ONESHOT,
>> +                                       dev_name(&pdev->dev), host);
>> ...
>
> ...sdhci_msm_pwr_irq() expects the data pointer to be msm_host, not
> sdhci_host, so right now I only get a panic. So I suspect you mean
> msm_host as the last param here.

Yes, you are right, I have also noticed this and it is fixed in the next
version which i will be posting in the next few days. Thanks!

BR,
Georgi

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