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From: Inki Dae <inki.dae@samsung.com>
To: Chanho Park <chanho61.park@samsung.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	"James E . J . Bottomley" <jejb@linux.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Bean Huo <beanhuo@micron.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Christoph Hellwig <hch@infradead.org>,
	Can Guo <cang@codeaurora.org>, Jaegeuk Kim <jaegeuk@kernel.org>,
	Gyunghoon Kwon <goodjob.kwon@samsung.com>,
	linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org,
	cpgs@samsung.com
Subject: Re: [PATCH v3 03/17] scsi: ufs: ufs-exynos: change pclk available max value
Date: Mon, 27 Sep 2021 14:25:58 +0900	[thread overview]
Message-ID: <878274034.81632720182984.JavaMail.epsvc@epcpadp4> (raw)
In-Reply-To: <20210917065436.145629-4-chanho61.park@samsung.com>

Hi Chanho,

21. 9. 17. 오후 3:54에 Chanho Park 이(가) 쓴 글:
> To support 167MHz PCLK, we need to adjust the maximum value.
> 
> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
> Signed-off-by: Chanho Park <chanho61.park@samsung.com>
> ---
>  drivers/scsi/ufs/ufs-exynos.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
> index dadf4fd10dd8..0a31f77a5f48 100644
> --- a/drivers/scsi/ufs/ufs-exynos.h
> +++ b/drivers/scsi/ufs/ufs-exynos.h
> @@ -99,7 +99,7 @@ struct exynos_ufs;
>  #define PA_HIBERN8TIME_VAL	0x20
>  
>  #define PCLK_AVAIL_MIN	70000000
> -#define PCLK_AVAIL_MAX	133000000
> +#define PCLK_AVAIL_MAX	167000000
>  

I'm not sure but doesn't the maximum clock frequency depend on a given machine? Is it true for all machines using different SoC?

Thanks,
Inki Dae

>  struct exynos_ufs_uic_attr {
>  	/* TX Attributes */
> 


  reply	other threads:[~2021-09-27  5:23 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20210917065522epcas2p2c9c7baccfc82b3798804c351dbf676eb@epcas2p2.samsung.com>
2021-09-17  6:54 ` [PATCH v3 00/17] introduce exynosauto v9 ufs driver Chanho Park
2021-09-17  6:54   ` [PATCH v3 01/17] scsi: ufs: add quirk to handle broken UIC command Chanho Park
2021-09-23  3:44     ` Alim Akhtar
2021-09-17  6:54   ` [PATCH v3 02/17] scsi: ufs: add quirk to enable host controller without ph configuration Chanho Park
2021-09-23  3:48     ` Alim Akhtar
2021-09-17  6:54   ` [PATCH v3 03/17] scsi: ufs: ufs-exynos: change pclk available max value Chanho Park
2021-09-27  5:25     ` Inki Dae [this message]
2021-09-27  6:46       ` Chanho Park
2021-09-27  7:11         ` Inki Dae
2021-09-27 11:08           ` Chanho Park
2021-09-28  2:18             ` Inki Dae
2021-09-17  6:54   ` [PATCH v3 04/17] scsi: ufs: ufs-exynos: simplify drv_data retrieval Chanho Park
2021-09-17  6:54   ` [PATCH v3 05/17] dt-bindings: ufs: exynos-ufs: add sysreg regmap property Chanho Park
2021-09-22 19:57     ` Rob Herring
2021-09-23  0:47       ` Chanho Park
2021-09-23 12:39         ` Rob Herring
2021-09-24  1:10           ` Chanho Park
2021-09-17  6:54   ` [PATCH v3 06/17] scsi: ufs: ufs-exynos: get sysreg regmap for io-coherency Chanho Park
2021-09-22 19:55     ` Rob Herring
2021-09-23  0:39       ` Chanho Park
2021-09-23 12:26         ` Rob Herring
2021-09-24  0:59           ` Chanho Park
2021-09-17  6:54   ` [PATCH v3 07/17] scsi: ufs: ufs-exynos: add refclkout_stop control Chanho Park
2021-09-17  6:54   ` [PATCH v3 08/17] scsi: ufs: ufs-exynos: add setup_clocks callback Chanho Park
2021-09-23  3:51     ` Alim Akhtar
2021-09-17  6:54   ` [PATCH v3 09/17] scsi: ufs: ufs-exynos: correct timeout value setting registers Chanho Park
2021-09-23  4:14     ` Alim Akhtar
2021-09-23  5:47       ` Chanho Park
2021-09-17  6:54   ` [PATCH v3 10/17] scsi: ufs: ufs-exynos: support custom version of ufs_hba_variant_ops Chanho Park
2021-09-23  4:28     ` Alim Akhtar
2021-09-17  6:54   ` [PATCH v3 11/17] scsi: ufs: ufs-exynos: add EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR option Chanho Park
2021-09-23  4:32     ` Alim Akhtar
2021-09-17  6:54   ` [PATCH v3 12/17] scsi: ufs: ufs-exynos: factor out priv data init Chanho Park
2021-09-17  6:54   ` [PATCH v3 13/17] scsi: ufs: ufs-exynos: add pre/post_hce_enable drv callbacks Chanho Park
2021-09-23  4:51     ` Alim Akhtar
2021-09-17  6:54   ` [PATCH v3 14/17] scsi: ufs: ufs-exynos: support exynosauto v9 ufs driver Chanho Park
2021-09-17  6:54   ` [PATCH v3 15/17] scsi: ufs: ufs-exynos: multi-host configuration for exynosauto Chanho Park
2021-09-27  5:31     ` Inki Dae
2021-09-27  6:56       ` Chanho Park
2021-09-17  6:54   ` [PATCH v3 16/17] scsi: ufs: ufs-exynos: introduce exynosauto v9 virtual host Chanho Park
2021-09-17  6:54   ` [PATCH v3 17/17] dt-bindings: ufs: exynos-ufs: add exynosautov9 compatible Chanho Park
2021-09-22 19:58     ` Rob Herring

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