From: Can Guo <cang@codeaurora.org>
To: Stanley Chu <stanley.chu@mediatek.com>
Cc: linux-scsi@vger.kernel.org, martin.petersen@oracle.com,
andy.teng@mediatek.com, jejb@linux.ibm.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
linux-kernel@vger.kernel.org, avri.altman@wdc.com,
linux-mediatek@lists.infradead.org, peter.wang@mediatek.com,
alim.akhtar@samsung.com, matthias.bgg@gmail.com,
asutoshd@codeaurora.org, bvanassche@acm.org,
linux-arm-kernel@lists.infradead.org, beanhuo@micron.com
Subject: Re: [PATCH v1 2/2] scsi: ufs: introduce common function to disable host TX LCC
Date: Fri, 07 Feb 2020 19:10:14 +0800 [thread overview]
Message-ID: <fedd167b5cd8b5dcfc107b48c0770b6a@codeaurora.org> (raw)
In-Reply-To: <20200207070357.17169-3-stanley.chu@mediatek.com>
On 2020-02-07 15:03, Stanley Chu wrote:
> Many vendors would like to disable host TX LCC during initialization
> flow. Introduce a common function for all users to make drivers easier
> to
> read and maintained. This patch does not change any functionality.
>
> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
> ---
> drivers/scsi/ufs/cdns-pltfrm.c | 2 +-
> drivers/scsi/ufs/ufs-hisi.c | 2 +-
> drivers/scsi/ufs/ufs-mediatek.c | 2 +-
> drivers/scsi/ufs/ufs-qcom.c | 4 +---
> drivers/scsi/ufs/ufshcd-pci.c | 2 +-
> drivers/scsi/ufs/ufshcd.h | 5 +++++
> 6 files changed, 10 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/scsi/ufs/cdns-pltfrm.c
> b/drivers/scsi/ufs/cdns-pltfrm.c
> index 56a6a1ed5ec2..da065a259f6e 100644
> --- a/drivers/scsi/ufs/cdns-pltfrm.c
> +++ b/drivers/scsi/ufs/cdns-pltfrm.c
> @@ -192,7 +192,7 @@ static int cdns_ufs_link_startup_notify(struct
> ufs_hba *hba,
> * and device TX LCC are disabled once link startup is
> * completed.
> */
> - ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
> + ufshcd_disable_host_tx_lcc(hba);
>
> /*
> * Disabling Autohibern8 feature in cadence UFS
> diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
> index 5d6487350a6c..074a6a055a4c 100644
> --- a/drivers/scsi/ufs/ufs-hisi.c
> +++ b/drivers/scsi/ufs/ufs-hisi.c
> @@ -235,7 +235,7 @@ static int ufs_hisi_link_startup_pre_change(struct
> ufs_hba *hba)
> ufshcd_writel(hba, reg, REG_AUTO_HIBERNATE_IDLE_TIMER);
>
> /* Unipro PA_Local_TX_LCC_Enable */
> - ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x155E, 0x0), 0x0);
> + ufshcd_disable_host_tx_lcc(hba);
> /* close Unipro VS_Mk2ExtnSupport */
> ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), 0x0);
> ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), &value);
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c
> b/drivers/scsi/ufs/ufs-mediatek.c
> index 8f73c860f423..9d05962feb15 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -318,7 +318,7 @@ static int ufs_mtk_pre_link(struct ufs_hba *hba)
> * to make sure that both host and device TX LCC are disabled
> * once link startup is completed.
> */
> - ret = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
> + ret = ufshcd_disable_host_tx_lcc(hba);
> if (ret)
> return ret;
>
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> index c69c29a1ceb9..c2e703d58f63 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -554,9 +554,7 @@ static int ufs_qcom_link_startup_notify(struct
> ufs_hba *hba,
> * completed.
> */
> if (ufshcd_get_local_unipro_ver(hba) != UFS_UNIPRO_VER_1_41)
> - err = ufshcd_dme_set(hba,
> - UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE),
> - 0);
> + err = ufshcd_disable_host_tx_lcc(hba);
>
> break;
> case POST_CHANGE:
> diff --git a/drivers/scsi/ufs/ufshcd-pci.c
> b/drivers/scsi/ufs/ufshcd-pci.c
> index 3b19de3ae9a3..8f78a8151499 100644
> --- a/drivers/scsi/ufs/ufshcd-pci.c
> +++ b/drivers/scsi/ufs/ufshcd-pci.c
> @@ -44,7 +44,7 @@ static int ufs_intel_disable_lcc(struct ufs_hba *hba)
>
> ufshcd_dme_get(hba, attr, &lcc_enable);
> if (lcc_enable)
> - ufshcd_dme_set(hba, attr, 0);
> + ufshcd_disable_host_tx_lcc(hba);
>
> return 0;
> }
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index 81c71a3e3474..8f516b205c32 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -914,6 +914,11 @@ static inline bool ufshcd_is_hs_mode(struct
> ufs_pa_layer_attr *pwr_info)
> pwr_info->pwr_tx == FASTAUTO_MODE);
> }
>
> +static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
> +{
> + return ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
> +}
> +
> /* Expose Query-Request API */
> int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
> enum query_opcode opcode,
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
next prev parent reply other threads:[~2020-02-07 11:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 7:03 [PATCH v1 0/2] scsi: ufs: introduce common function to disable host TX LCC Stanley Chu
2020-02-07 7:03 ` [PATCH v1 1/2] scsi: ufs: ufs-mediatek: fix TX LCC disabling timing Stanley Chu
2020-02-07 11:51 ` Avri Altman
2020-02-07 7:03 ` [PATCH v1 2/2] scsi: ufs: introduce common function to disable host TX LCC Stanley Chu
2020-02-07 11:10 ` Can Guo [this message]
2020-02-07 11:55 ` Avri Altman
2020-02-07 18:14 ` Asutosh Das (asd)
2020-02-09 7:03 ` Avri Altman
2020-02-13 0:33 ` [PATCH v1 0/2] " Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=fedd167b5cd8b5dcfc107b48c0770b6a@codeaurora.org \
--to=cang@codeaurora.org \
--cc=alim.akhtar@samsung.com \
--cc=andy.teng@mediatek.com \
--cc=asutoshd@codeaurora.org \
--cc=avri.altman@wdc.com \
--cc=beanhuo@micron.com \
--cc=bvanassche@acm.org \
--cc=chun-hung.wu@mediatek.com \
--cc=jejb@linux.ibm.com \
--cc=kuohong.wang@mediatek.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-scsi@vger.kernel.org \
--cc=martin.petersen@oracle.com \
--cc=matthias.bgg@gmail.com \
--cc=peter.wang@mediatek.com \
--cc=stanley.chu@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).