touch: offload fw boot up to workqueue
touch faststartup is consuming more than 700ms during power on, created workqueue to handle touch firmware boot up sequence. Change-Id: I67a288f41001052e5dcdb2ed465055b3a23d3233 Signed-off-by: Sachin Kumar Garg <quic_sachinku@quicinc.com>
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Sachin Kumar Garg
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Gerrit - the friendly Code Review server
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13fe897650
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a6675f0aee
194
pt/pt_core.c
194
pt/pt_core.c
@@ -41,6 +41,11 @@
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#define FT_I2C_VTG_MIN_UV 1800000
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#define FT_I2C_VTG_MAX_UV 1800000
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#define PWR_SUSPEND_LOAD_UA 165
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#define I2C_SUSPEND_LOAD_UA 100
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#define PWR_ACTIVE_LOAD_MA 12000
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#define I2C_ACTIVE_LOAD_MA 30000
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#define PT_CORE_STARTUP_RETRY_COUNT 3
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#define PT_STATUS_STR_LEN (50)
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@@ -51,6 +56,7 @@ static struct drm_panel *active_panel;
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MODULE_FIRMWARE(PT_FW_FILE_NAME);
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static int pt_lpm_regulator(struct regulator *reg, int load_uA);
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static const char *pt_driver_core_name = PT_CORE_NAME;
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static const char *pt_driver_core_version = PT_DRIVER_VERSION;
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static const char *pt_driver_core_date = PT_DRIVER_DATE;
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@@ -7660,7 +7666,7 @@ static int pt_core_sleep_(struct pt_core_data *cd)
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mutex_unlock(&cd->system_lock);
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pt_debug(cd->dev, DL_INFO,
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"%s - Skip slee[ state %d\n", __func__, cd->sleep_state);
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return 1;
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return 0;
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}
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mutex_unlock(&cd->system_lock);
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@@ -7714,11 +7720,11 @@ static int pt_core_easywake_on_(struct pt_core_data *cd)
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mutex_lock(&cd->system_lock);
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if (cd->sleep_state == SS_SLEEP_ON) {
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if (cd->sleep_state == SS_EASY_WAKING_ON) {
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mutex_unlock(&cd->system_lock);
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pt_debug(cd->dev, DL_INFO, "%s - Skip sleep state %d\n",
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__func__, cd->sleep_state);
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return 1;
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return 0;
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}
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mutex_unlock(&cd->system_lock);
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@@ -7733,6 +7739,9 @@ static int pt_core_easywake_on_(struct pt_core_data *cd)
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if (rc)
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pr_err("%s: Easy wakeup error detected :rc=%d\n", __func__, rc);
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}
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mutex_lock(&cd->system_lock);
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cd->sleep_state = SS_EASY_WAKING_ON;
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mutex_unlock(&cd->system_lock);
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return rc;
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}
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@@ -8499,7 +8508,7 @@ static int pt_read_input(struct pt_core_data *cd)
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mutex_lock(&cd->system_lock);
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if (IS_EASY_WAKE_CONFIGURED(cd->easy_wakeup_gesture)) {
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if (cd->sleep_state == SS_SLEEP_ON) {
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if (cd->sleep_state == SS_SLEEP_ON || cd->sleep_state == SS_EASY_WAKING_ON) {
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mutex_unlock(&cd->system_lock);
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if (!dev->power.is_suspended)
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goto read;
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@@ -9579,11 +9588,11 @@ static int pt_core_easywake_off_(struct pt_core_data *cd)
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int rc = 0;
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mutex_lock(&cd->system_lock);
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if (cd->sleep_state == SS_SLEEP_OFF) {
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if (cd->sleep_state == SS_EASY_WAKING_OFF) {
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mutex_unlock(&cd->system_lock);
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pt_debug(cd->dev, DL_INFO,
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"%s - %d skip wakeoff\n", __func__, cd->sleep_state);
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return 1;
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return 0;
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}
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mutex_unlock(&cd->system_lock);
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@@ -9595,6 +9604,9 @@ static int pt_core_easywake_off_(struct pt_core_data *cd)
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"%s - %d failed %d\n", __func__, rc);
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}
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mutex_lock(&cd->system_lock);
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cd->sleep_state = SS_EASY_WAKING_OFF;
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mutex_unlock(&cd->system_lock);
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pt_start_wd_timer(cd);
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return rc;
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}
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@@ -9660,7 +9672,7 @@ static int pt_core_wake_(struct pt_core_data *cd)
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mutex_unlock(&cd->system_lock);
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pt_debug(cd->dev, DL_INFO,
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"%s - skip wake sleep state %d\n", __func__, cd->sleep_state);
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return 1;
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return 0;
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}
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mutex_unlock(&cd->system_lock);
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@@ -9701,7 +9713,7 @@ static int pt_core_wake_(struct pt_core_data *cd)
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******************************************************************************/
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static int pt_core_wake(struct pt_core_data *cd)
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{
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int rc;
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int rc = 0;
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rc = request_exclusive(cd, cd->dev, PT_REQUEST_EXCLUSIVE_TIMEOUT);
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if (rc < 0) {
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@@ -10512,6 +10524,49 @@ regulator_put:
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return rc;
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}
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static int pt_enable_vdd_regulator(struct pt_core_data *cd, bool en)
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{
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int rc;
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if (!en) {
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rc = 0;
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goto disable_vdd_reg;
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}
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if (cd->vdd) {
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if (regulator_count_voltages(cd->vdd) > 0) {
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rc = regulator_set_voltage(cd->vdd, FT_VTG_MIN_UV,
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FT_VTG_MAX_UV);
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if (rc) {
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dev_err(cd->dev,
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"Regulator set_vtg failed vdd rc=%d\n", rc);
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goto exit;
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}
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}
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rc = regulator_enable(cd->vdd);
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if (rc) {
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dev_err(cd->dev,
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"Regulator vdd enable failed rc=%d\n", rc);
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goto exit;
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}
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}
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return 0;
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disable_vdd_reg:
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if (cd->vdd) {
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if (regulator_count_voltages(cd->vdd) > 0)
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regulator_set_voltage(cd->vdd, FT_VTG_MIN_UV,
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FT_VTG_MAX_UV);
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regulator_disable(cd->vdd);
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}
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exit:
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return rc;
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}
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static int pt_enable_regulator(struct pt_core_data *cd, bool en)
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{
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int rc;
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@@ -10606,19 +10661,9 @@ exit:
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static int pt_core_rt_suspend(struct device *dev)
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{
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struct pt_core_data *cd = dev_get_drvdata(dev);
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int rc = 0;
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dev_info(dev, "%s: Entering into runtime suspend mode:\n",
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__func__);
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if (cd->cpdata->flags & PT_CORE_FLAG_SKIP_RUNTIME)
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return 0;
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rc = pt_core_easywake_on(cd);
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if (rc < 0) {
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pt_debug(dev, DL_ERROR, "%s: Error on sleep\n", __func__);
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return -EAGAIN;
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}
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pt_debug(dev, DL_DEBUG, "%s Skip - probe state %d\n",
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__func__, cd->core_probe_complete);
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return 0;
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}
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@@ -10638,18 +10683,8 @@ static int pt_core_rt_suspend(struct device *dev)
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static int pt_core_rt_resume(struct device *dev)
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{
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struct pt_core_data *cd = dev_get_drvdata(dev);
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int rc = 0;
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dev_info(dev, "%s: Entering into runtime resume mode:\n",
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__func__);
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if (cd->cpdata->flags & PT_CORE_FLAG_SKIP_RUNTIME)
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return 0;
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rc = pt_core_easywake_off(cd);
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if (rc < 0) {
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pt_debug(dev, DL_ERROR, "%s: Error on wake\n", __func__);
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return -EAGAIN;
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}
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pt_debug(dev, DL_DEBUG, "%s Skip - probe state %d\n",
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__func__, cd->core_probe_complete);
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return 0;
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}
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@@ -10683,11 +10718,17 @@ static int pt_core_suspend_(struct device *dev)
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return -EAGAIN;
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}
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#ifdef REGULATOR
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rc = pt_enable_regulator(cd, false);
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if (rc)
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dev_err(dev, "%s: Failed to disable regulators: rc=%d\n", __func__, rc);
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#endif
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rc = pt_enable_vdd_regulator(cd, false);
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if (rc) {
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dev_err(dev, "%s: Failed to disable vdd regulators: rc=%d\n",
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__func__, rc);
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}
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rc = pt_lpm_regulator(cd->vcc_i2c, I2C_ACTIVE_LOAD_MA);
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if (rc) {
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dev_err(dev, "%s: Failed to enter to lpm mode rc=%d\n",
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__func__, rc);
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}
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if (!IS_EASY_WAKE_CONFIGURED(cd->easy_wakeup_gesture))
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return 0;
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@@ -10708,6 +10749,13 @@ static int pt_core_suspend_(struct device *dev)
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return rc;
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}
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static int pt_lpm_regulator(struct regulator *reg, int load_uA)
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{
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return (regulator_count_voltages(reg) > 0) ?
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regulator_set_load(reg, load_uA) : 0;
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}
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/*******************************************************************************
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* FUNCTION: pt_core_suspend
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*
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@@ -10732,7 +10780,7 @@ static int pt_core_suspend(struct device *dev)
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rc = pt_core_suspend_(dev);
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pt_debug(dev, DL_WARN, "%s Exit - rc = %d\n", __func__, rc);
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return rc;
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return 0;
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}
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/*******************************************************************************
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@@ -10756,13 +10804,17 @@ static int pt_core_resume_(struct device *dev)
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dev_info(dev, "%s: Entering into resume mode:\n",
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__func__);
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#ifdef REGULATOR
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rc = pt_enable_regulator(cd, true);
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rc = pt_lpm_regulator(cd->vcc_i2c, I2C_ACTIVE_LOAD_MA);
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if (rc < 0) {
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dev_err(dev, "%s: Failed to enable regulators: rc=%d\n",
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dev_err(dev, "%s: Failed to exit lpm mode: rc=%d\n",
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__func__, rc);
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}
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rc = pt_enable_vdd_regulator(cd, true);
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if (rc < 0) {
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dev_err(dev, "%s: Failed to enable vdd regulators: rc=%d\n",
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__func__, rc);
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}
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#endif
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dev_info(dev, "%s: Voltage regulator enabled: rc=%d\n",
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__func__, rc);
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@@ -10799,9 +10851,53 @@ exit:
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return -EAGAIN;
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}
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return 0;
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return rc;
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}
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/*******************************************************************************
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* FUNCTION: resume_offload_work
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*
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* SUMMARY: Wrapper function of pt_core_resume_() to avoid TP to be waken/slept
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* along with kernel power state even the display is off based on the check of
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* TTDL core platform flag.
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*
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* RETURN:
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* 0 = success
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* !0 = failure
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*
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* PARAMETERS:
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* *dev - pointer to core device
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******************************************************************************/
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static void pt_resume_offload_work(struct work_struct *work)
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{
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int rc = 0;
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int retry_count = 10;
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struct pt_core_data *pt_data = container_of(work, struct pt_core_data,
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resume_offload_work);
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do {
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retry_count--;
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rc = pt_core_resume_(pt_data->dev);
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if (rc < 0)
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pt_debug(pt_data->dev, DL_ERROR,
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"%s: Error on wake\n", __func__);
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} while (retry_count && rc < 0);
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#ifdef TOUCH_TO_WAKE_POWER_FEATURE_WORK_AROUND
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rc = pt_core_easywake_on(pt_data);
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if (rc < 0) {
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pt_debug(pt_data->dev, DL_ERROR,
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"%s: Error on enable touch to wake key\n",
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__func__);
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return;
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}
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pt_data->fb_state = FB_OFF;
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pt_debug(pt_data->dev, DL_INFO, "%s End\n", __func__);
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#endif
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}
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/*******************************************************************************
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* FUNCTION: pt_core_resume
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*
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@@ -10819,10 +10915,14 @@ exit:
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static int pt_core_resume(struct device *dev)
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{
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struct pt_core_data *cd = dev_get_drvdata(dev);
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int rc = 0;
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if (cd->cpdata->flags & PT_CORE_FLAG_SKIP_SYS_SLEEP)
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return 0;
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return pt_core_resume_(dev);
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queue_work(cd->pt_workqueue, &cd->resume_offload_work);
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pt_debug(cd->dev, DL_ERROR, "%s End\n", __func__);
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return rc;
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}
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#endif
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@@ -12587,9 +12687,8 @@ static void pt_resume_work(struct work_struct *work)
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if (rc < 0) {
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pt_debug(pt_data->dev, DL_ERROR,
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"%s: Error on wake\n", __func__);
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return;
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}
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return;
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}
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static void pt_suspend_work(struct work_struct *work)
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@@ -12609,7 +12708,7 @@ static void pt_suspend_work(struct work_struct *work)
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return;
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}
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pt_debug(pt_data->dev, DL_INFO, "%s Exit\n", __func__);
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return;
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}
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/*******************************************************************************
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@@ -17649,6 +17748,7 @@ skip_enum:
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#elif defined(CONFIG_DRM)
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pt_debug(dev, DL_ERROR, "%s: Probe: Setup drm notifier\n", __func__);
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pt_setup_drm_notifier(cd);
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INIT_WORK(&cd->resume_offload_work, pt_resume_offload_work);
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#elif defined(CONFIG_FB)
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pt_setup_fb_notifier(cd);
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#endif
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