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| author | Vivek Gautam <vivek.gautam@codeaurora.org> | 2017-10-12 11:49:36 +0530 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2017-10-23 11:19:27 +0530 |
| commit | 052553af6a31b459adfdc6fd1eebced75de332fc (patch) | |
| tree | df42d5791e9d0f36d53e76790baf99473aacc284 /drivers/scsi/ufs | |
| parent | e9dc42c70c003746f2b541114f1fa19dc0ab232d (diff) | |
| download | linux-052553af6a31b459adfdc6fd1eebced75de332fc.tar.gz | |
ufs/phy: qcom: Refactor to use phy_init call
Refactor ufs_qcom_power_up_sequence() to get rid of ugly exported phy APIs and use the phy_init() and phy_power_on() to do the phy initialization. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/scsi/ufs')
| -rw-r--r-- | drivers/scsi/ufs/ufs-qcom.c | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 44c21d5818ee..890eafeb8ad4 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -281,10 +281,10 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba) /* provide 1ms delay to let the reset pulse propagate */ usleep_range(1000, 1100); - ret = ufs_qcom_phy_calibrate_phy(phy, is_rate_B); - + /* phy initialization - calibrate the phy */ + ret = phy_init(phy); if (ret) { - dev_err(hba->dev, "%s: ufs_qcom_phy_calibrate_phy() failed, ret = %d\n", + dev_err(hba->dev, "%s: phy init failed, ret = %d\n", __func__, ret); goto out; } @@ -297,21 +297,22 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba) * voltage, current to settle down before starting serdes. */ usleep_range(1000, 1100); - ret = ufs_qcom_phy_start_serdes(phy); + + /* power on phy - start serdes and phy's power and clocks */ + ret = phy_power_on(phy); if (ret) { - dev_err(hba->dev, "%s: ufs_qcom_phy_start_serdes() failed, ret = %d\n", + dev_err(hba->dev, "%s: phy power on failed, ret = %d\n", __func__, ret); - goto out; + goto out_disable_phy; } - ret = ufs_qcom_phy_is_pcs_ready(phy); - if (ret) - dev_err(hba->dev, - "%s: is_physical_coding_sublayer_ready() failed, ret = %d\n", - __func__, ret); - ufs_qcom_select_unipro_mode(host); + return 0; + +out_disable_phy: + ufs_qcom_assert_reset(hba); + phy_exit(phy); out: return ret; } @@ -1276,14 +1277,9 @@ static int ufs_qcom_init(struct ufs_hba *hba) 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) - goto out_unregister_bus; - err = ufs_qcom_init_lane_clks(host); if (err) - goto out_disable_phy; + goto out_variant_clear; ufs_qcom_set_caps(hba); ufs_qcom_advertise_quirks(hba); @@ -1304,10 +1300,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) goto out; -out_disable_phy: - phy_power_off(host->generic_phy); -out_unregister_bus: - phy_exit(host->generic_phy); out_variant_clear: ufshcd_set_variant(hba, NULL); out: |