From 492001990f641b0d0df4dbd45c759785fda76f5b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 21 Feb 2020 06:08:11 -0800 Subject: [PATCH] scsi: ufshcd: remove unused quirks Remove various quirks that don't have users, as well as the dead code keyed off them. Link: https://lore.kernel.org/r/20200221140812.476338-2-hch@lst.de Reviewed-by: Bart Van Assche Signed-off-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 119 +++++----------------------------------------- drivers/scsi/ufs/ufshcd.h | 22 --------- 2 files changed, 12 insertions(+), 129 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index f4aa10f..b1387ea5 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -645,11 +645,7 @@ static inline int ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp) */ static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos) { - if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) - ufshcd_writel(hba, (1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR); - else - ufshcd_writel(hba, ~(1 << pos), - REG_UTP_TRANSFER_REQ_LIST_CLEAR); + ufshcd_writel(hba, ~(1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR); } /** @@ -659,10 +655,7 @@ static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos) */ static inline void ufshcd_utmrl_clear(struct ufs_hba *hba, u32 pos) { - if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) - ufshcd_writel(hba, (1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR); - else - ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR); + ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR); } /** @@ -2101,13 +2094,8 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) return sg_segments; if (sg_segments) { - if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) - lrbp->utr_descriptor_ptr->prd_table_length = - cpu_to_le16((u16)(sg_segments * - sizeof(struct ufshcd_sg_entry))); - else - lrbp->utr_descriptor_ptr->prd_table_length = - cpu_to_le16((u16) (sg_segments)); + lrbp->utr_descriptor_ptr->prd_table_length = + cpu_to_le16((u16)sg_segments); prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr; @@ -3436,21 +3424,11 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba) cpu_to_le32(upper_32_bits(cmd_desc_element_addr)); /* Response upiu and prdt offset should be in double words */ - if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { - utrdlp[i].response_upiu_offset = - cpu_to_le16(response_offset); - utrdlp[i].prd_table_offset = - cpu_to_le16(prdt_offset); - utrdlp[i].response_upiu_length = - cpu_to_le16(ALIGNED_UPIU_SIZE); - } else { - utrdlp[i].response_upiu_offset = - cpu_to_le16((response_offset >> 2)); - utrdlp[i].prd_table_offset = - cpu_to_le16((prdt_offset >> 2)); - utrdlp[i].response_upiu_length = - cpu_to_le16(ALIGNED_UPIU_SIZE >> 2); - } + utrdlp[i].response_upiu_offset = + cpu_to_le16(response_offset >> 2); + utrdlp[i].prd_table_offset = cpu_to_le16(prdt_offset >> 2); + utrdlp[i].response_upiu_length = + cpu_to_le16(ALIGNED_UPIU_SIZE >> 2); hba->lrb[i].utr_descriptor_ptr = (utrdlp + i); hba->lrb[i].utrd_dma_addr = hba->utrdl_dma_addr + @@ -3493,52 +3471,6 @@ static int ufshcd_dme_link_startup(struct ufs_hba *hba) "dme-link-startup: error code %d\n", ret); return ret; } -/** - * ufshcd_dme_reset - UIC command for DME_RESET - * @hba: per adapter instance - * - * DME_RESET command is issued in order to reset UniPro stack. - * This function now deal with cold reset. - * - * Returns 0 on success, non-zero value on failure - */ -static int ufshcd_dme_reset(struct ufs_hba *hba) -{ - struct uic_command uic_cmd = {0}; - int ret; - - uic_cmd.command = UIC_CMD_DME_RESET; - - ret = ufshcd_send_uic_cmd(hba, &uic_cmd); - if (ret) - dev_err(hba->dev, - "dme-reset: error code %d\n", ret); - - return ret; -} - -/** - * ufshcd_dme_enable - UIC command for DME_ENABLE - * @hba: per adapter instance - * - * DME_ENABLE command is issued in order to enable UniPro stack. - * - * Returns 0 on success, non-zero value on failure - */ -static int ufshcd_dme_enable(struct ufs_hba *hba) -{ - struct uic_command uic_cmd = {0}; - int ret; - - uic_cmd.command = UIC_CMD_DME_ENABLE; - - ret = ufshcd_send_uic_cmd(hba, &uic_cmd); - if (ret) - dev_err(hba->dev, - "dme-reset: error code %d\n", ret); - - return ret; -} static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba) { @@ -4250,7 +4182,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep) } /** - * ufshcd_hba_execute_hce - initialize the controller + * ufshcd_hba_enable - initialize the controller * @hba: per adapter instance * * The controller resets itself and controller firmware initialization @@ -4259,7 +4191,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba, bool can_sleep) * * Returns 0 on success, non-zero value on failure */ -static int ufshcd_hba_execute_hce(struct ufs_hba *hba) +int ufshcd_hba_enable(struct ufs_hba *hba) { int retry; @@ -4307,32 +4239,6 @@ static int ufshcd_hba_execute_hce(struct ufs_hba *hba) return 0; } - -int ufshcd_hba_enable(struct ufs_hba *hba) -{ - int ret; - - if (hba->quirks & UFSHCI_QUIRK_BROKEN_HCE) { - ufshcd_set_link_off(hba); - ufshcd_vops_hce_enable_notify(hba, PRE_CHANGE); - - /* enable UIC related interrupts */ - ufshcd_enable_intr(hba, UFSHCD_UIC_MASK); - ret = ufshcd_dme_reset(hba); - if (!ret) { - ret = ufshcd_dme_enable(hba); - if (!ret) - ufshcd_vops_hce_enable_notify(hba, POST_CHANGE); - if (ret) - dev_err(hba->dev, - "Host controller enable failed with non-hce\n"); - } - } else { - ret = ufshcd_hba_execute_hce(hba); - } - - return ret; -} EXPORT_SYMBOL_GPL(ufshcd_hba_enable); static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer) @@ -4909,8 +4815,7 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba) * false interrupt if device completes another request after resetting * aggregation and before reading the DB. */ - if (ufshcd_is_intr_aggr_allowed(hba) && - !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) + if (ufshcd_is_intr_aggr_allowed(hba)) ufshcd_reset_intr_aggr(hba); tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 8f516b2..6f22f466 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -613,28 +613,6 @@ struct ufs_hba { */ #define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION 0x20 - /* - * This quirk needs to be enabled if the host contoller regards - * resolution of the values of PRDTO and PRDTL in UTRD as byte. - */ - #define UFSHCD_QUIRK_PRDT_BYTE_GRAN 0x80 - - /* - * Clear handling for transfer/task request list is just opposite. - */ - #define UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR 0x100 - - /* - * This quirk needs to be enabled if host controller doesn't allow - * that the interrupt aggregation timer and counter are reset by s/w. - */ - #define UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR 0x200 - - /* - * This quirks needs to be enabled if host controller cannot be - * enabled via HCE register. - */ - #define UFSHCI_QUIRK_BROKEN_HCE 0x400 unsigned int quirks; /* Deviations from standard UFSHCI spec. */ /* Device deviations from standard UFS device spec. */ -- 2.7.4