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path: root/drivers/scsi/ufs/ufs-qcom.c
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Diffstat (limited to 'drivers/scsi/ufs/ufs-qcom.c')
-rw-r--r--drivers/scsi/ufs/ufs-qcom.c36
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 9217af9bf734..6652a8171de6 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -214,8 +214,6 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
struct ufs_qcom_host *host = hba->priv;
struct phy *phy = host->generic_phy;
int ret = 0;
- u8 major;
- u16 minor, step;
bool is_rate_B = (UFS_QCOM_LIMIT_HS_RATE == PA_HS_MODE_B)
? true : false;
@@ -224,8 +222,6 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
/* provide 1ms delay to let the reset pulse propagate */
usleep_range(1000, 1100);
- ufs_qcom_get_controller_revision(hba, &major, &minor, &step);
- ufs_qcom_phy_save_controller_version(phy, major, minor, step);
ret = ufs_qcom_phy_calibrate_phy(phy, is_rate_B);
if (ret) {
dev_err(hba->dev, "%s: ufs_qcom_phy_calibrate_phy() failed, ret = %d\n",
@@ -698,16 +694,24 @@ out:
*/
static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
{
- u8 major;
- u16 minor, step;
+ struct ufs_qcom_host *host = hba->priv;
- ufs_qcom_get_controller_revision(hba, &major, &minor, &step);
+ if (host->hw_ver.major == 0x1)
+ hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS;
- /*
- * TBD
- * here we should be advertising controller quirks according to
- * controller version.
- */
+ if (host->hw_ver.major >= 0x2) {
+ if (!ufs_qcom_cap_qunipro(host))
+ /* Legacy UniPro mode still need following quirks */
+ hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS;
+ }
+}
+
+static void ufs_qcom_set_caps(struct ufs_hba *hba)
+{
+ struct ufs_qcom_host *host = hba->priv;
+
+ if (host->hw_ver.major >= 0x2)
+ host->caps = UFS_QCOM_CAP_QUNIPRO;
}
static int ufs_qcom_get_bus_vote(struct ufs_qcom_host *host,
@@ -929,6 +933,13 @@ static int ufs_qcom_init(struct ufs_hba *hba)
if (err)
goto out_host_free;
+ ufs_qcom_get_controller_revision(hba, &host->hw_ver.major,
+ &host->hw_ver.minor, &host->hw_ver.step);
+
+ /* update phy revision information before calling phy_init() */
+ ufs_qcom_phy_save_controller_version(host->generic_phy,
+ host->hw_ver.major, host->hw_ver.minor, host->hw_ver.step);
+
phy_init(host->generic_phy);
err = phy_power_on(host->generic_phy);
if (err)
@@ -938,6 +949,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
if (err)
goto out_disable_phy;
+ ufs_qcom_set_caps(hba);
ufs_qcom_advertise_quirks(hba);
hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_CLK_SCALING;