From 4935933e07daaf829692fa54abe0c2ad9ac94ed9 Mon Sep 17 00:00:00 2001 From: Xiaofei Tan Date: Thu, 23 Mar 2017 01:25:39 +0800 Subject: [PATCH] scsi: hisi_sas: add is_sata_phy_v2_hw() Add helper function is_sata_phy_v2_hw() to judge whether the attached device is SATA disk for a root PHY. Signed-off-by: Xiaofei Tan Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index e9c7188..a3af380 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -1075,6 +1075,17 @@ static void enable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no) hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); } +static bool is_sata_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no) +{ + u32 context; + + context = hisi_sas_read32(hisi_hba, PHY_CONTEXT); + if (context & (1 << phy_no)) + return true; + + return false; +} + static void disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no) { u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); @@ -2286,7 +2297,7 @@ static int prep_abort_v2_hw(struct hisi_hba *hisi_hba, static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba) { int i, res = IRQ_HANDLED; - u32 context, port_id, link_rate, hard_phy_linkrate; + u32 port_id, link_rate, hard_phy_linkrate; struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; struct asd_sas_phy *sas_phy = &phy->sas_phy; struct device *dev = &hisi_hba->pdev->dev; @@ -2295,9 +2306,7 @@ static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba) hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1); - /* Check for SATA dev */ - context = hisi_sas_read32(hisi_hba, PHY_CONTEXT); - if (context & (1 << phy_no)) + if (is_sata_phy_v2_hw(hisi_hba, phy_no)) goto end; if (phy_no == 8) { -- 2.7.4