drivers/scsi/ufs/ufshcd-pltfrm.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (c) 2015, The Linux Foundation. All rights reserved.
   3  */
   4
   5 #ifndef UFSHCD_PLTFRM_H_
   6 #define UFSHCD_PLTFRM_H_
   7
   8 #include "ufshcd.h"
   9
  10 #define UFS_PWM_MODE 1
  11 #define UFS_HS_MODE  2
  12
  13 struct ufs_dev_params {
  14         u32 pwm_rx_gear;        /* pwm rx gear to work in */
  15         u32 pwm_tx_gear;        /* pwm tx gear to work in */
  16         u32 hs_rx_gear;         /* hs rx gear to work in */
  17         u32 hs_tx_gear;         /* hs tx gear to work in */
  18         u32 rx_lanes;           /* number of rx lanes */
  19         u32 tx_lanes;           /* number of tx lanes */
  20         u32 rx_pwr_pwm;         /* rx pwm working pwr */
  21         u32 tx_pwr_pwm;         /* tx pwm working pwr */
  22         u32 rx_pwr_hs;          /* rx hs working pwr */
  23         u32 tx_pwr_hs;          /* tx hs working pwr */
  24         u32 hs_rate;            /* rate A/B to work in HS */
  25         u32 desired_working_mode;
  26 };
  27
  28 int ufshcd_get_pwr_dev_param(struct ufs_dev_params *dev_param,
  29                              struct ufs_pa_layer_attr *dev_max,
  30                              struct ufs_pa_layer_attr *agreed_pwr);
  31 void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param);
  32 int ufshcd_pltfrm_init(struct platform_device *pdev,
  33                        const struct ufs_hba_variant_ops *vops);
  34 void ufshcd_pltfrm_shutdown(struct platform_device *pdev);
  35
  36 #ifdef CONFIG_PM
  37
  38 int ufshcd_pltfrm_suspend(struct device *dev);
  39 int ufshcd_pltfrm_resume(struct device *dev);
  40 int ufshcd_pltfrm_runtime_suspend(struct device *dev);
  41 int ufshcd_pltfrm_runtime_resume(struct device *dev);
  42 int ufshcd_pltfrm_runtime_idle(struct device *dev);
  43
  44 #else /* !CONFIG_PM */
  45
  46 #define ufshcd_pltfrm_suspend   NULL
  47 #define ufshcd_pltfrm_resume    NULL
  48 #define ufshcd_pltfrm_runtime_suspend   NULL
  49 #define ufshcd_pltfrm_runtime_resume    NULL
  50 #define ufshcd_pltfrm_runtime_idle      NULL
  51
  52 #endif /* CONFIG_PM */
  53
  54 #endif /* UFSHCD_PLTFRM_H_ */