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

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Message-ID: <4dc0cb58-13f6-0678-dcf2-6b0394200157@codeaurora.org>
Date:   Mon, 20 Jan 2020 12:49:13 -0800
From:   "Asutosh Das (asd)" <asutoshd@...eaurora.org>
To:     Stanley Chu <stanley.chu@...iatek.com>, linux-scsi@...r.kernel.org,
        martin.petersen@...cle.com, avri.altman@....com,
        alim.akhtar@...sung.com, jejb@...ux.ibm.com
Cc:     beanhuo@...ron.com, cang@...eaurora.org, matthias.bgg@...il.com,
        bvanassche@....org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        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 1/16/2020 7:51 PM, Stanley Chu 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>
> ---

LGTM.

Reviewed-by: Asutosh Das <asutoshd@...eaurora.org>

>   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);
> 


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