diff options
| author | Gilad Broner <gbroner@codeaurora.org> | 2014-12-21 10:48:42 +0200 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 10:58:26 -0700 |
| commit | 5cdbfe11ca75af09b97123498075b56a7fa02b8d (patch) | |
| tree | fbd8d7c3d3806f5db17665296553d38a8f06128e /drivers/phy | |
| parent | f6786d1fec861506b3e3339cd4f6066c75cdb203 (diff) | |
scsi: ufs-qcom: set device ref. clk bit
As of HW major version 2, a new bit 'UFS_DEV_REF_CLK_EN' was added
to UFS_CFG1 register which needs to be set as part of hibernate
enter/exit sequences during suspend/resume.
Change-Id: I66a6a75dc5a1cf130b1cee90ae20f9f950edfb3a
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
[imaund@codeaurora.org: Resolved context conflicts and updated a
conditional in ufs_qcom_advertise_quirks to use the ufs_qcom_host
struct when querying major hw versions]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
[subhashj@codeaurora.org: resolved trivial merge conflicts]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
[venkatg@codeaurora.org: resolved trivial merge conflicts,
drop changes to include/linux/phy/phy-qcom-ufs.h]
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/phy-qcom-ufs.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index 2a053c3cd30b..1e6d1835f44d 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -144,7 +144,6 @@ int ufs_qcom_phy_base_init(struct platform_device *pdev, phy_common->mmio = NULL; dev_err(dev, "%s: ioremap for phy_mem resource failed %d\n", __func__, err); - goto out; } /* "dev_ref_clk_ctrl_mem" is optional resource */ @@ -445,38 +444,6 @@ void ufs_qcom_phy_disable_ref_clk(struct phy *generic_phy) } } -#define UFS_REF_CLK_EN (1 << 5) - -static void ufs_qcom_phy_dev_ref_clk_ctrl(struct phy *generic_phy, bool enable) -{ - struct ufs_qcom_phy *phy = get_ufs_qcom_phy(generic_phy); - - if (phy->dev_ref_clk_ctrl_mmio && - (enable ^ phy->is_dev_ref_clk_enabled)) { - u32 temp = readl_relaxed(phy->dev_ref_clk_ctrl_mmio); - - if (enable) - temp |= UFS_REF_CLK_EN; - else - temp &= ~UFS_REF_CLK_EN; - - writel_relaxed(temp, phy->dev_ref_clk_ctrl_mmio); - /* ensure that ref_clk is enabled/disabled before we return */ - wmb(); - phy->is_dev_ref_clk_enabled = enable; - } -} - -void ufs_qcom_phy_enable_dev_ref_clk(struct phy *generic_phy) -{ - ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, true); -} - -void ufs_qcom_phy_disable_dev_ref_clk(struct phy *generic_phy) -{ - ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, false); -} - /* Turn ON M-PHY RMMI interface clocks */ int ufs_qcom_phy_enable_iface_clk(struct phy *generic_phy) { |