> On Sun, Aug 30, 2015 at 9:52 AM, Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
> wrote:
>> This change turns the UFS variant (SCSI_UFS_QCOM) into a UFS
>> a platform device.
>> In order to do so a few additional changes are required:
>> 1. The ufshcd-pltfrm is no longer serves as a platform device.
>> Now it only serves as a group of platform APIs such as PM APIs
>> (runtime suspend/resume, system suspend/resume etc), parsers of
>> clocks, regulators and pm_levels from DT.
>> 2. What used to be the old platform "probe" is now "only"
>> a pltfrm_init() routine, that does exactly the same, but only
>> being called by the new probe function of the UFS variant.
>>
>> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
>>
>> ---
>> Documentation/devicetree/bindings/ufs/ufs-qcom.txt | 57 ++++++++++++++
>> .../devicetree/bindings/ufs/ufshcd-pltfrm.txt | 4 +-
>
> For the binding:
>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
>
> A comment on the driver part still.
>
>> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
>> index 329ac84..8027435 100644
>> --- a/drivers/scsi/ufs/ufs-qcom.c
>> +++ b/drivers/scsi/ufs/ufs-qcom.c
>
> [...]
>
>> +static int ufs_qcom_probe(struct platform_device *pdev)
>> +{
>> + int err;
>> + struct device *dev = &pdev->dev;
>> + struct ufs_hba *hba;
>> +
>> + /* Perform generic probe */
>> + err = ufshcd_pltfrm_init(pdev, &ufs_hba_qcom_vops);
>> + if (err) {
>> + dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
>> + goto out;
>> + }
>> +
>> + hba = platform_get_drvdata(pdev);
>
> I thought this was not necessary?
skipped my eye. i'm uploading another version without this redundant check
>
>> + if (unlikely(!hba)) {
>> + dev_err(dev, "no hba structure after successful
>> probing\n");
>> + goto dealloc_host;
>> + }
>> +
>> + return 0;
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