diff options
| author | Rakesh Bodla <rbodla@nvidia.com> | 2012-07-30 15:16:18 +0530 |
|---|---|---|
| committer | Rohan Somvanshi <rsomvanshi@nvidia.com> | 2012-07-31 03:48:44 -0700 |
| commit | 2c752ad14af6316048bf8f06a170445f8e5f01a4 (patch) | |
| tree | 3d44717647e287f957f81caf76d47acf7c5a1662 /arch/arm/mach-tegra/usb_phy.c | |
| parent | b4e9ece3b32afea9ca8d761c285fc9bc4c70b967 (diff) | |
ARM: tegra: usb: keep usb vdd regulator on
Adding the conditions during which USB vdd
regulator should be kept ON.
Bug 1024425
Bug 1012078
Bug 1018538
Change-Id: I3319c91ecc02891ea4467f73be2b84a3817dab36
Signed-off-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-on: http://git-master/r/119279
Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/usb_phy.c')
| -rw-r--r-- | arch/arm/mach-tegra/usb_phy.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/arch/arm/mach-tegra/usb_phy.c b/arch/arm/mach-tegra/usb_phy.c index 00a44dd2536c..80a3337e58fe 100644 --- a/arch/arm/mach-tegra/usb_phy.c +++ b/arch/arm/mach-tegra/usb_phy.c @@ -136,7 +136,7 @@ static irqreturn_t usb_phy_dev_vbus_pmu_irq_thr(int irq, void *pdata) if (phy->vdd_reg && !phy->vdd_reg_on) { regulator_enable(phy->vdd_reg); - phy->vdd_reg_on = 1; + phy->vdd_reg_on = true; /* * Optimal time to get the regulator turned on * before detecting vbus interrupt. @@ -469,25 +469,30 @@ int tegra_usb_phy_power_off(struct tegra_usb_phy *phy) clk_disable(phy->sys_clk); if (phy->pdata->op_mode == TEGRA_USB_OPMODE_HOST) { if (!phy->pdata->u_data.host.hot_plug && - !phy->pdata->u_data.host.remote_wakeup_supported) + !phy->pdata->u_data.host.remote_wakeup_supported) { clk_disable(phy->ctrlr_clk); + phy->ctrl_clk_on = false; + if (phy->vdd_reg && phy->vdd_reg_on) { + regulator_disable(phy->vdd_reg); + phy->vdd_reg_on = false; + } + } } else { - /* In device mode clock is turned on by pmu irq handler - * if pmu irq is not available clocks will not be turned off/on + /* In device mode clock regulator/clocks will be turned off + * only if pmu interrupt is present on the board and host mode + * support through OTG is supported on the board. */ - if (phy->pdata->u_data.dev.vbus_pmu_irq) { + if (phy->pdata->u_data.dev.vbus_pmu_irq && + phy->pdata->builtin_host_disabled) { clk_disable(phy->ctrlr_clk); phy->ctrl_clk_on = false; + if (phy->vdd_reg && phy->vdd_reg_on) { + regulator_disable(phy->vdd_reg); + phy->vdd_reg_on = false; + } } } - if (phy->vdd_reg && phy->vdd_reg_on) - if (phy->pdata->has_hostpc || - phy->pdata->builtin_host_disabled) { - regulator_disable(phy->vdd_reg); - phy->vdd_reg_on = false; - } - phy->phy_power_on = false; return err; |