linux-kernel - Re: [PATCH v1 2/3] scsi: ufs: export some functions for vendor usage

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Date:   Sun, 19 Jan 2020 19:42:50 +0530
From:   Alim Akhtar <alim.akhtar@...il.com>
To:     Stanley Chu <stanley.chu@...iatek.com>
Cc:     linux-scsi@...r.kernel.org,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Avri Altman <avri.altman@....com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Bean Huo (beanhuo)" <beanhuo@...ron.com>, asutoshd@...eaurora.org,
        Can Guo <cang@...eaurora.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Bart Van Assche <bvanassche@....org>,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        open list <linux-kernel@...r.kernel.org>,
        Kuohong Wang <kuohong.wang@...iatek.com>,
        peter.wang@...iatek.com, chun-hung.wu@...iatek.com,
        andy.teng@...iatek.com
Subject: Re: [PATCH v1 2/3] scsi: ufs: export some functions for vendor usage

On Fri, Jan 17, 2020 at 9:45 AM Stanley Chu <stanley.chu@...iatek.com> wrote:
>
> Export below functions for vendor usage,
>
> int ufshcd_hba_enable(struct ufs_hba *hba);
> int ufshcd_make_hba_operational(struct ufs_hba *hba);
> int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
>
> Signed-off-by: Stanley Chu <stanley.chu@...iatek.com>
> ---
Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>

>  drivers/scsi/ufs/ufshcd.c | 11 +++++++----
>  drivers/scsi/ufs/ufshcd.h |  3 +++
>  2 files changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index bea036ab189a..1168baf358ea 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -250,7 +250,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba);
>  static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
>                                  bool skip_ref_clk);
>  static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
> -static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
>  static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
>  static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
>  static int ufshcd_host_reset_and_restore(struct ufs_hba *hba);
> @@ -3865,7 +3864,7 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)
>         return ret;
>  }
>
> -static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
> +int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
>  {
>         struct uic_command uic_cmd = {0};
>         int ret;
> @@ -3891,6 +3890,7 @@ static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
>
>         return ret;
>  }
> +EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_exit);
>
>  void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit)
>  {
> @@ -4162,7 +4162,7 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba)
>   *
>   * Returns 0 on success, non-zero value on failure
>   */
> -static int ufshcd_make_hba_operational(struct ufs_hba *hba)
> +int ufshcd_make_hba_operational(struct ufs_hba *hba)
>  {
>         int err = 0;
>         u32 reg;
> @@ -4208,6 +4208,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba *hba)
>  out:
>         return err;
>  }
> +EXPORT_SYMBOL_GPL(ufshcd_make_hba_operational);
>
>  /**
>   * ufshcd_hba_stop - Send controller to reset state
> @@ -4285,7 +4286,7 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba)
>         return 0;
>  }
>
> -static int ufshcd_hba_enable(struct ufs_hba *hba)
> +int ufshcd_hba_enable(struct ufs_hba *hba)
>  {
>         int ret;
>
> @@ -4310,6 +4311,8 @@ static int ufshcd_hba_enable(struct ufs_hba *hba)
>
>         return ret;
>  }
> +EXPORT_SYMBOL_GPL(ufshcd_hba_enable);
> +
>  static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer)
>  {
>         int tx_lanes, i, err = 0;
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index b1a1c65be8b1..fca372d98495 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -799,8 +799,11 @@ static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
>
>  int ufshcd_alloc_host(struct device *, struct ufs_hba **);
>  void ufshcd_dealloc_host(struct ufs_hba *);
> +int ufshcd_hba_enable(struct ufs_hba *hba);
>  int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
> +int ufshcd_make_hba_operational(struct ufs_hba *hba);
>  void ufshcd_remove(struct ufs_hba *);
> +int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
>  int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
>                                 u32 val, unsigned long interval_us,
>                                 unsigned long timeout_ms, bool can_sleep);
> --
> 2.18.0



-- 
Regards,
Alim