diff options
| author | Ajay Gupta <ajayg@nvidia.com> | 2013-05-17 14:29:06 -0700 |
|---|---|---|
| committer | Harshada Kale <hkale@nvidia.com> | 2013-06-03 04:07:10 -0700 |
| commit | 8c59ce76e72d88eecaafeaf6ea31b2f7152310b3 (patch) | |
| tree | 4b2f6492916bb62f83a95c31eebe9c48fef7f729 /drivers/usb | |
| parent | 5207879cca8fcf1be59a530fc15a0aa611570084 (diff) | |
usb: xhci: tegra: enable SS VCORE only for active ports
Enabling SS VCORE only for active ports as passed by board file.
Bug 1268244
Change-Id: Ifd2a04340c2b17d3e1410f233c3a6949050818a6
Signed-off-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-on: http://git-master/r/229990
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-tegra.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index 582794120985..105b59ba886b 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -888,15 +888,20 @@ tegra_xhci_ss_vcore(struct tegra_xhci_hcd *tegra, bool enable) { u32 elpg_program0; - /* Assert vcore_off signal */ elpg_program0 = readl(tegra->padctl_base + ELPG_PROGRAM_0); - if (enable) - elpg_program0 |= (SSP0_ELPG_VCORE_DOWN|SSP1_ELPG_VCORE_DOWN); - else - elpg_program0 &= ~(SSP0_ELPG_VCORE_DOWN|SSP1_ELPG_VCORE_DOWN); - + if (enable) { + if (tegra->bdata->portmap & TEGRA_XUSB_SS_P0) + elpg_program0 |= SSP0_ELPG_VCORE_DOWN; + if (tegra->bdata->portmap & TEGRA_XUSB_SS_P1) + elpg_program0 |= SSP1_ELPG_VCORE_DOWN; + } else { + if (tegra->bdata->portmap & TEGRA_XUSB_SS_P0) + elpg_program0 &= ~SSP0_ELPG_VCORE_DOWN; + if (tegra->bdata->portmap & TEGRA_XUSB_SS_P1) + elpg_program0 &= ~SSP1_ELPG_VCORE_DOWN; + } writel(elpg_program0, tegra->padctl_base + ELPG_PROGRAM_0); } |