Merge "input: misc: speed up suspend and resume for QTC800S panel" (90553de3) · Commits · e / devices / android_kernel_sony_msm8998

drivers/input/misc/hbtp_input.c

+112 −48

Original line number	Diff line number	Diff line
		@@ -98,9 +98,10 @@ static struct hbtp_data *hbtp;
		static struct kobject *sensor_kobject;

		#if defined(CONFIG_FB)
		static int hbtp_fb_early_suspend(struct hbtp_data *ts);
		static int hbtp_fb_suspend(struct hbtp_data *ts);
		static int hbtp_fb_early_resume(struct hbtp_data *ts);
		static int hbtp_fb_resume(struct hbtp_data *ts);
		static int hbtp_fb_revert_resume(struct hbtp_data *ts);
		#endif

		#if defined(CONFIG_FB)
		@@ -145,6 +146,7 @@ static int fb_notifier_callback(struct notifier_block *self,
		lcd_state <= FB_BLANK_NORMAL) {
		pr_debug("%s: receives EARLY_BLANK:POWERDOWN\n",
		__func__);
		hbtp_fb_early_suspend(hbtp_data);
		} else {
		pr_debug("%s: receives EARLY_BLANK:%d in %d state\n",
		__func__, blank, lcd_state);
		@@ -153,10 +155,12 @@ static int fb_notifier_callback(struct notifier_block *self,
		if (blank <= FB_BLANK_NORMAL) {
		pr_debug("%s: receives R_EARLY_BALNK:UNBLANK\n",
		__func__);
		hbtp_fb_early_suspend(hbtp_data);
		hbtp_fb_suspend(hbtp_data);
		} else if (blank == FB_BLANK_POWERDOWN) {
		pr_debug("%s: receives R_EARLY_BALNK:POWERDOWN\n",
		__func__);
		hbtp_fb_revert_resume(hbtp_data);
		} else {
		pr_debug("%s: receives R_EARLY_BALNK:%d in %d state\n",
		__func__, blank, lcd_state);
		@@ -175,7 +179,6 @@ static int fb_notifier_callback(struct notifier_block *self,
		} else if (blank <= FB_BLANK_NORMAL &&
		lcd_state == FB_BLANK_POWERDOWN) {
		pr_debug("%s: receives BLANK:UNBLANK\n", __func__);
		hbtp_fb_resume(hbtp_data);
		} else {
		pr_debug("%s: receives BLANK:%d in %d state\n",
		__func__, blank, lcd_state);
		@@ -1192,6 +1195,43 @@ error:
		return rc;
		}

		static int hbtp_fb_early_suspend(struct hbtp_data *ts)
		{
		int rc = 0;
		char *envp[2] = {HBTP_EVENT_TYPE_DISPLAY, NULL};

		mutex_lock(&hbtp->mutex);
		if (ts->pdev && (!ts->power_sync_enabled)) {
		pr_debug("%s: power_sync is not enabled\n", __func__);

		if (ts->input_dev) {
		kobject_uevent_env(&ts->input_dev->dev.kobj,
		KOBJ_OFFLINE, envp);

		if (ts->power_sig_enabled) {
		pr_debug("%s: power_sig is enabled, wait for signal\n",
		__func__);
		mutex_unlock(&hbtp->mutex);
		rc = wait_for_completion_interruptible(
		&hbtp->power_suspend_sig);
		if (rc != 0) {
		pr_err("%s: wait for early suspend is interrupted\n",
		__func__);
		}
		mutex_lock(&hbtp->mutex);
		pr_debug("%s: Wait is done for early suspend\n",
		__func__);
		} else {
		pr_debug("%s: power_sig is NOT enabled",
		__func__);
		}
		}
		}

		mutex_unlock(&hbtp->mutex);
		return rc;
		}

		static int hbtp_fb_suspend(struct hbtp_data *ts)
		{
		int rc;
		@@ -1217,7 +1257,6 @@ static int hbtp_fb_suspend(struct hbtp_data *ts)
		goto err_power_disable;
		}
		ts->power_suspended = true;
		}

		if (ts->input_dev) {
		kobject_uevent_env(&ts->input_dev->dev.kobj,
		@@ -1234,9 +1273,12 @@ static int hbtp_fb_suspend(struct hbtp_data *ts)
		__func__);
		}
		mutex_lock(&hbtp->mutex);
		pr_debug("%s: Wait is done for suspend\n", __func__);
		pr_debug("%s: Wait is done for suspend\n",
		__func__);
		} else {
		pr_debug("%s: power_sig is NOT enabled", __func__);
		pr_debug("%s: power_sig is NOT enabled",
		__func__);
		}
		}
		}

		@@ -1278,7 +1320,16 @@ static int hbtp_fb_early_resume(struct hbtp_data *ts)
		goto err_pin_enable;
		}

		if (ts->fb_resume_seq_delay) {
		usleep_range(ts->fb_resume_seq_delay,
		ts->fb_resume_seq_delay +
		HBTP_HOLD_DURATION_US);
		pr_debug("%s: fb_resume_seq_delay = %u\n",
		__func__, ts->fb_resume_seq_delay);
		}

		ts->power_suspended = false;
		}

		if (ts->input_dev) {

		@@ -1301,16 +1352,8 @@ static int hbtp_fb_early_resume(struct hbtp_data *ts)
		pr_debug("%s: power_sig is NOT enabled\n",
		__func__);
		}

		if (ts->fb_resume_seq_delay) {
		usleep_range(ts->fb_resume_seq_delay,
		ts->fb_resume_seq_delay +
		HBTP_HOLD_DURATION_US);
		pr_err("%s: fb_resume_seq_delay = %u\n",
		__func__, ts->fb_resume_seq_delay);
		}
		}
		}

		mutex_unlock(&hbtp->mutex);
		return 0;

		@@ -1321,20 +1364,41 @@ err_power_on:
		return rc;
		}

		static int hbtp_fb_resume(struct hbtp_data *ts)
		static int hbtp_fb_revert_resume(struct hbtp_data *ts)
		{
		char *envp[2] = {HBTP_EVENT_TYPE_DISPLAY, NULL};
		int rc = 0;

		mutex_lock(&hbtp->mutex);
		if (!ts->power_sync_enabled) {
		pr_debug("%s: power_sync is disabled, send uevent\n", __func__);

		pr_debug("%s: hbtp_fb_revert_resume\n", __func__);

		if (ts->pdev && (!ts->power_sync_enabled)) {
		pr_debug("%s: power_sync is not enabled\n", __func__);

		if (ts->input_dev) {
		kobject_uevent_env(&ts->input_dev->dev.kobj,
		KOBJ_ONLINE, envp);

		if (ts->power_sig_enabled) {
		pr_debug("%s: power_sig is enabled, wait for signal\n",
		__func__);
		mutex_unlock(&hbtp->mutex);
		rc = wait_for_completion_interruptible(
		&hbtp->power_resume_sig);
		if (rc != 0) {
		pr_warn("%s: wait for revert resume is interrupted\n",
		__func__);
		}
		pr_debug("%s: wait is done\n", __func__);
		} else {
		pr_debug("%s: power_sig is NOT enabled\n",
		__func__);
		}
		}
		mutex_unlock(&hbtp->mutex);
		return 0;
		}

		return rc;
		}

		static int hbtp_pdev_probe(struct platform_device *pdev)