diff options
| author | Manu Gautam <mgautam@codeaurora.org> | 2016-06-24 12:30:37 +0530 |
|---|---|---|
| committer | Vamsi Krishna Samavedam <vskrishn@codeaurora.org> | 2017-02-02 14:20:44 -0800 |
| commit | a4f63f1693dd85a9e597cdb8466c78fe658db14b (patch) | |
| tree | a1ff2ff2dd4bba4797c911908eb19d8844c32e89 /include/linux/usb | |
| parent | af883d4db0b398542bb561808a11019f0998d129 (diff) | |
usb: xhci-plat: Add DT parameter to program xhci imod_interval
XHCI allows interrupt moderation using imod_interval at 250ns
increments. Add DT parameter to specify this imod_value for
targets mainly with single CPU to reduce CPU interrupt loads.
This allows better balance between CPU usage and performance.
CRs-fixed: 1019219
Change-Id: Id479c162da6492caff4dd83de4054fee63b6abc5
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/xhci_pdriver.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/usb/xhci_pdriver.h b/include/linux/usb/xhci_pdriver.h index 376654b5b0f7..a44b53c33e75 100644 --- a/include/linux/usb/xhci_pdriver.h +++ b/include/linux/usb/xhci_pdriver.h @@ -19,9 +19,13 @@ * @usb3_lpm_capable: determines if this xhci platform supports USB3 * LPM capability * + * @imod_interval: minimum inter-interrupt interval. Specified in + * 250nsec increments. + * */ struct usb_xhci_pdata { unsigned usb3_lpm_capable:1; + unsigned imod_interval; }; #endif /* __USB_CORE_XHCI_PDRIVER_H */ |