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authorPavankumar Kondeti <pkondeti@codeaurora.org>2010-12-07 17:53:58 +0530
committerGreg Kroah-Hartman <gregkh@suse.de>2010-12-10 14:23:32 -0800
commit87c0104af742af2acfcbd685f2b9a40f33770dc0 (patch)
treef17e999013e443ec70bb4c05a79a44c6ae52054f /include/linux/usb
parent8bb6a164b906bb7ca319202f85b30e3ef096cd65 (diff)
downloadop-kernel-dev-87c0104af742af2acfcbd685f2b9a40f33770dc0.zip
op-kernel-dev-87c0104af742af2acfcbd685f2b9a40f33770dc0.tar.gz
USB: OTG: msm: Add support for power management
Implement runtime and system pm ops to put hardware into low power mode (LPM). As part of LPM, USB clocks are turned off, PHY is put into suspend state and PHY comparators are turned off if VBUS/Id notifications are not required from PHY. Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/msm_hsusb.h4
-rw-r--r--include/linux/usb/msm_hsusb_hw.h3
2 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index b796df9..3675e03 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -88,6 +88,8 @@ struct msm_otg_platform_data {
* @regs: ioremapped register base address.
* @inputs: OTG state machine inputs(Id, SessValid etc).
* @sm_work: OTG state machine work.
+ * @in_lpm: indicates low power mode (LPM) state.
+ * @async_int: Async interrupt arrived.
*
*/
struct msm_otg {
@@ -103,6 +105,8 @@ struct msm_otg {
#define B_SESS_VLD 1
unsigned long inputs;
struct work_struct sm_work;
+ atomic_t in_lpm;
+ int async_int;
};
#endif
diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h
index b061cff..b92e173 100644
--- a/include/linux/usb/msm_hsusb_hw.h
+++ b/include/linux/usb/msm_hsusb_hw.h
@@ -44,6 +44,9 @@
#define ULPI_DATA(n) ((n) & 255)
#define ULPI_DATA_READ(n) (((n) >> 8) & 255)
+#define ASYNC_INTR_CTRL (1 << 29) /* Enable async interrupt */
+#define ULPI_STP_CTRL (1 << 30) /* Block communication with PHY */
+
/* OTG definitions */
#define OTGSC_INTSTS_MASK (0x7f << 16)
#define OTGSC_ID (1 << 8)
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