linux-stable/drivers/scsi/ufs/ufshcd-pltfrm.h
Yaniv Gardi 47555a5c8a scsi: ufs: make the UFS variant a platform device
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.

Reviewed-by: Rob Herring <robherring2@gmail.com>
Reviewed-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-09 18:00:02 -05:00

41 lines
1.3 KiB
C

/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef UFSHCD_PLTFRM_H_
#define UFSHCD_PLTFRM_H_
#include "ufshcd.h"
int ufshcd_pltfrm_init(struct platform_device *pdev,
struct ufs_hba_variant_ops *vops);
void ufshcd_pltfrm_shutdown(struct platform_device *pdev);
#ifdef CONFIG_PM
int ufshcd_pltfrm_suspend(struct device *dev);
int ufshcd_pltfrm_resume(struct device *dev);
int ufshcd_pltfrm_runtime_suspend(struct device *dev);
int ufshcd_pltfrm_runtime_resume(struct device *dev);
int ufshcd_pltfrm_runtime_idle(struct device *dev);
#else /* !CONFIG_PM */
#define ufshcd_pltfrm_suspend NULL
#define ufshcd_pltfrm_resume NULL
#define ufshcd_pltfrm_runtime_suspend NULL
#define ufshcd_pltfrm_runtime_resume NULL
#define ufshcd_pltfrm_runtime_idle NULL
#endif /* CONFIG_PM */
#endif /* UFSHCD_PLTFRM_H_ */