UPSTREAM: scsi: ufs: introduce common function to disable host TX LCC
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. Bug: 151050916 (cherry picked from commit 984eaac133e3d6d993ffd4de9e4bdc2c94de742b) 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> Change-Id: Ib40f9228475e74377178b41f0ffa6f46470c52e3
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@ -97,7 +97,7 @@ static int cdns_ufs_link_startup_notify(struct ufs_hba *hba,
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* and device TX LCC are disabled once link startup is
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* completed.
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*/
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ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
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ufshcd_disable_host_tx_lcc(hba);
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/*
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* Disabling Autohibern8 feature in cadence UFS
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@ -235,7 +235,7 @@ static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba)
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ufshcd_writel(hba, reg, REG_AUTO_HIBERNATE_IDLE_TIMER);
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/* Unipro PA_Local_TX_LCC_Enable */
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ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x155E, 0x0), 0x0);
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ufshcd_disable_host_tx_lcc(hba);
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/* close Unipro VS_Mk2ExtnSupport */
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ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), 0x0);
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ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(0xD0AB, 0x0), &value);
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@ -318,7 +318,7 @@ static int ufs_mtk_pre_link(struct ufs_hba *hba)
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* to make sure that both host and device TX LCC are disabled
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* once link startup is completed.
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*/
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ret = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
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ret = ufshcd_disable_host_tx_lcc(hba);
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if (ret)
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return ret;
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@ -553,9 +553,7 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba,
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* completed.
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*/
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if (ufshcd_get_local_unipro_ver(hba) != UFS_UNIPRO_VER_1_41)
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err = ufshcd_dme_set(hba,
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UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE),
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0);
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err = ufshcd_disable_host_tx_lcc(hba);
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break;
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case POST_CHANGE:
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@ -44,7 +44,7 @@ static int ufs_intel_disable_lcc(struct ufs_hba *hba)
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ufshcd_dme_get(hba, attr, &lcc_enable);
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if (lcc_enable)
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ufshcd_dme_set(hba, attr, 0);
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ufshcd_disable_host_tx_lcc(hba);
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return 0;
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}
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@ -977,6 +977,11 @@ static inline bool ufshcd_is_hs_mode(struct ufs_pa_layer_attr *pwr_info)
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pwr_info->pwr_tx == FASTAUTO_MODE);
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}
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static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
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{
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return ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
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}
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/* Expose Query-Request API */
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int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
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enum query_opcode opcode,
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