This patch adds code to switch to VDD1 OPP1 when DSP is hibernated.
Also some code cleanup.
Signed-off-by: Ameya Palande <ameya.palande@xxxxxxxxx>
---
drivers/dsp/bridge/wmd/tiomap3430_pwr.c | 51 +++++++++++++++++++++----------
1 files changed, 35 insertions(+), 16 deletions(-)
diff --git a/drivers/dsp/bridge/wmd/tiomap3430_pwr.c b/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
index b81df8c..20d3e23 100644
--- a/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
+++ b/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
@@ -207,17 +207,19 @@ DSP_STATUS SleepDSP(struct WMD_DEV_CONTEXT *pDevContext, IN u32 dwCmd,
enum HW_PwrState_t pwrState;
enum HW_PwrState_t targetPwrState;
- status = CFG_GetHostResources(
- (struct CFG_DEVNODE *)DRV_GetFirstDevExtension(), &resources);
- if (DSP_FAILED(status))
- return status;
DBG_Trace(DBG_LEVEL7, "SleepDSP- Enter function \n");
- /* next, check if sleep code is valid... */
+ /* Check if sleep code is valid */
if ((dwCmd != PWR_DEEPSLEEP) && (dwCmd != PWR_EMERGENCYDEEPSLEEP)) {
DBG_Trace(DBG_LEVEL7, "SleepDSP- Illegal sleep command\n");
return DSP_EINVALIDARG;
}
+
+ status = CFG_GetHostResources(
+ (struct CFG_DEVNODE *)DRV_GetFirstDevExtension(), &resources);
+ if (DSP_FAILED(status))
+ return status;
+
switch (pDevContext->dwBrdState) {
case BRD_RUNNING:
status = HW_MBOX_saveSettings(resources.dwMboxBase);
@@ -245,7 +247,6 @@ DSP_STATUS SleepDSP(struct WMD_DEV_CONTEXT *pDevContext, IN u32 dwCmd,
break;
case BRD_HIBERNATION:
case BRD_DSP_HIBERNATION:
- status = HW_MBOX_saveSettings(resources.dwMboxBase);
/* Already in Hibernation, so just return */
DBG_Trace(DBG_LEVEL7, "SleepDSP- DSP already in "
"hibernation\n");
@@ -259,17 +260,22 @@ DSP_STATUS SleepDSP(struct WMD_DEV_CONTEXT *pDevContext, IN u32 dwCmd,
"SleepDSP- Bridge in Illegal state\n");
return DSP_EFAIL;
}
+
/* Get the PRCM DSP power domain status */
HW_PWR_IVA2StateGet(resources.dwPrmBase, HW_PWR_DOMAIN_DSP,
- &pwrState);
- /* Wait for DSP to move into Standby state, how much time
- * should we wait?*/
+ &pwrState);
+
+ /*
+ * Wait for DSP to move into Standby state, how much time
+ * should we wait?
+ */
while ((pwrState != targetPwrState) && --usCount) {
udelay(500);
HW_PWR_IVA2StateGet(resources.dwPrmBase, HW_PWR_DOMAIN_DSP,
&pwrState);
}
- if (usCount == 0) {
+
+ if (!usCount) {
DBG_Trace(DBG_LEVEL7, "SleepDSP: Timed out Waiting for DSP"
" STANDBY %x \n", pwrState);
DEV_GetDehMgr(pDevContext->hDevObject, &hDehMgr);
@@ -278,17 +284,30 @@ DSP_STATUS SleepDSP(struct WMD_DEV_CONTEXT *pDevContext, IN u32 dwCmd,
} else {
DBG_Trace(DBG_LEVEL7, "SleepDSP: DSP STANDBY Pwr state %x \n",
pwrState);
+
/* Update the Bridger Driver state */
- if (enable_off_mode)
- pDevContext->dwBrdState = BRD_HIBERNATION;
- else
- pDevContext->dwBrdState = BRD_RETENTION;
+ pDevContext->dwBrdState = enable_off_mode ? BRD_HIBERNATION
+ : BRD_RETENTION;
+
/* Turn off DSP Peripheral clocks */
status = DSP_PeripheralClocks_Disable(pDevContext, NULL);
- if (DSP_FAILED(status))
+ if (DSP_FAILED(status)) {
DBG_Trace(DBG_LEVEL7, "SleepDSP- FAILED\n");
+ return status;
+ }
+#ifdef CONFIG_BRIDGE_DVFS
+ else if (targetPwrState == HW_PWR_STATE_OFF) {
+ struct dspbridge_platform_data *pdata =
+ omap_dspbridge_dev->dev.platform_data;
+ /*
+ * Set the OPP to low level before moving to OFF mode
+ */
+ if (pdata->dsp_set_min_opp)
+ (*pdata->dsp_set_min_opp)(VDD1_OPP1);
+ }
+#endif /* CONFIG_BRIDGE_DVFS */
}
-#endif
+#endif /* CONFIG_PM */
return status;
}
--
1.6.2.4
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