LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc: Set HPD once at boot up

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- HPD has to be set only once during boot up.
- This also helps in use case where HPD is turned off
  (on purpose)through by adb shell for power testing
  and on suspend/resume, it gets re-enabled.

Change-Id: I7bf6fdd08e719432029c5d6e5756685d36cdca43
This commit is contained in:
Arun Kumar K.R
2014-12-02 15:52:41 -08:00
committed by Gerrit - the friendly Code Review server
parent 8921608ed8
commit 2225eaab7c
3 changed files with 5 additions and 1 deletions
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3
libhwcomposer/hwc.cpp
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@@ -475,10 +475,11 @@ static int hwc_setPowerMode(struct hwc_composer_device_1* dev, int dpy,
return -errno; return -errno;
} }
if(mode == HWC_POWER_MODE_NORMAL) { if(mode == HWC_POWER_MODE_NORMAL && !ctx->mHPDEnabled) {
// Enable HPD here, as during bootup POWER_MODE_NORMAL is set // Enable HPD here, as during bootup POWER_MODE_NORMAL is set
// when SF is completely initialized // when SF is completely initialized
ctx->mHDMIDisplay->setHPD(1); ctx->mHDMIDisplay->setHPD(1);
ctx->mHPDEnabled = true;
} }
ctx->dpyAttr[dpy].isActive = not(mode == HWC_POWER_MODE_OFF); ctx->dpyAttr[dpy].isActive = not(mode == HWC_POWER_MODE_OFF);

1
libhwcomposer/hwc_utils.cpp
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@@ -413,6 +413,7 @@ void initContext(hwc_context_t *ctx)
} }
memset(&(ctx->mPtorInfo), 0, sizeof(ctx->mPtorInfo)); memset(&(ctx->mPtorInfo), 0, sizeof(ctx->mPtorInfo));
ctx->mHPDEnabled = false;
ALOGI("Initializing Qualcomm Hardware Composer"); ALOGI("Initializing Qualcomm Hardware Composer");
ALOGI("MDP version: %d", ctx->mMDP.version); ALOGI("MDP version: %d", ctx->mMDP.version);
} }

2
libhwcomposer/hwc_utils.h
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@@ -644,6 +644,8 @@ struct hwc_context_t {
bool mBWCEnabled; bool mBWCEnabled;
// Provides a way for OEM's to disable setting dynfps via metadata. // Provides a way for OEM's to disable setting dynfps via metadata.
bool mUseMetaDataRefreshRate; bool mUseMetaDataRefreshRate;
// Stores the hpd enabled status- avoids re-enabling HDP on suspend resume.
bool mHPDEnabled;
}; };
namespace qhwc { namespace qhwc {