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Commit b09f20aa authored by Fenglin Wu's avatar Fenglin Wu Committed by Fenglin Wu
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input: qcom-hv-haptics: use OL_TLRA if getting CL_TLRA failed 



If getting close-loop TLRA failed in driver probe, such as if there
is no valid value in SDAM register for CAL_TLRA_CL_STS because of the
bootloader had not run the frequency calibration successfully. Use
open-loop TLRA to program the hardware so the vibrator can still be
functional but just lose some efficiency because of unadjusted
frequency.

Change-Id: I8b8dd0906aa6b3fa882e2044cdbe579c746714a3
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent e51738b0

drivers/input/misc/qcom-hv-haptics.c

+6 −6
Original line number Diff line number Diff line
@@ -2721,15 +2721,15 @@ static int haptics_hw_init(struct haptics_chip *chip) 
		return rc;



	/* get calibrated close loop period */

	rc = haptics_get_closeloop_lra_period(chip, true);

	if (rc < 0)

		return rc;



	/* Config T_LRA */

	t_lra_us = chip->config.t_lra_us;

	if (chip->config.cl_t_lra_us != 0)

	rc = haptics_get_closeloop_lra_period(chip, true);

	if (!rc && chip->config.cl_t_lra_us != 0)

		t_lra_us = chip->config.cl_t_lra_us;

	else

		dev_warn(chip->dev, "get closeloop LRA period failed, rc=%d\n",

				rc);



	/* Config T_LRA */

	rc = haptics_config_openloop_lra_period(chip, t_lra_us);

	if (rc < 0)

		return rc;