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| author | davidycchen <davidycchen@google.com> | 2021-10-15 11:36:24 +0800 |
|---|---|---|
| committer | David Chen <davidycchen@google.com> | 2021-10-21 09:19:57 +0000 |
| commit | bf9731c028f5959aa4e80834bd5579c906b894b9 (patch) | |
| tree | 368bc9e2cca3f68537aee65f4f339ff8a7fc37bc /syna_tcm2.c | |
| parent | 89fea965cf3ec4f058d9f4dec13ddc583db43673 (diff) | |
| download | synaptics_touch-bf9731c028f5959aa4e80834bd5579c906b894b9.tar.gz | |
synaptics: support more bus reference mode
Support force touch bus active and sysfs bus reference bit to make sure
the touch bus is avtive while transferring SPI data.
Bug: 199104466
Test: write the sysfs command successfully.
Signed-off-by: davidycchen <davidycchen@google.com>
Change-Id: Ic0ffe78917a749b5b1e9796972846b5e13440485
Diffstat (limited to 'syna_tcm2.c')
| -rw-r--r-- | syna_tcm2.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/syna_tcm2.c b/syna_tcm2.c index f43d6cd..96f4606 100644 --- a/syna_tcm2.c +++ b/syna_tcm2.c @@ -1947,6 +1947,13 @@ static int syna_pm_suspend(struct device *dev) if (tcm->pwr_state == PWR_ON) { LOGW("can't suspend because touch bus is in use!\n"); + if (tcm->bus_refmask == SYNA_BUS_REF_BUGREPORT && + ktime_ms_delta(ktime_get(), tcm->bugreport_ktime_start) > 30 * MSEC_PER_SEC) { + syna_set_bus_ref(tcm, SYNA_BUS_REF_BUGREPORT, false); + pm_relax(&tcm->pdev->dev); + tcm->bugreport_ktime_start = 0; + LOGE("Force release SYNA_BUS_REF_BUGREPORT reference bit."); + } return -EBUSY; } |