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scsi: ufs: introduce common function to disable host TX LCC

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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.

Link: https://lore.kernel.org/r/20200207070357.17169-3-stanley.chu@mediatek.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2020-02-07 15:03:57 +08:00 committed by Martin K. Petersen
parent 618b4d07a4
commit 984eaac133
6 changed files with 10 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/scsi/ufs/cdns-pltfrm.c
View file

@ -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

2
drivers/scsi/ufs/ufs-hisi.c
View file

@ -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);

2
drivers/scsi/ufs/ufs-mediatek.c
View file

@ -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;

4
drivers/scsi/ufs/ufs-qcom.c
View file

@ -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:

2
drivers/scsi/ufs/ufshcd-pci.c
View file

@ -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;
}

5
drivers/scsi/ufs/ufshcd.h
View file

@ -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,