diff options
Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-ufs.c')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-ufs.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs.c b/drivers/phy/qualcomm/phy-qcom-ufs.c index c5493ea51282..f2979ccad00a 100644 --- a/drivers/phy/qualcomm/phy-qcom-ufs.c +++ b/drivers/phy/qualcomm/phy-qcom-ufs.c @@ -431,56 +431,6 @@ static void ufs_qcom_phy_disable_ref_clk(struct ufs_qcom_phy *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; - - /* - * If we are here to disable this clock immediately after - * entering into hibern8, we need to make sure that device - * ref_clk is active atleast 1us after the hibern8 enter. - */ - if (!enable) - udelay(1); - - writel_relaxed(temp, phy->dev_ref_clk_ctrl_mmio); - /* ensure that ref_clk is enabled/disabled before we return */ - wmb(); - /* - * If we call hibern8 exit after this, we need to make sure that - * device ref_clk is stable for atleast 1us before the hibern8 - * exit command. - */ - if (enable) - udelay(1); - - 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); -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_dev_ref_clk); - -void ufs_qcom_phy_disable_dev_ref_clk(struct phy *generic_phy) -{ - ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, false); -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_dev_ref_clk); - /* Turn ON M-PHY RMMI interface clocks */ static int ufs_qcom_phy_enable_iface_clk(struct ufs_qcom_phy *phy) { |