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Commit 327de868 authored by Fenglin Wu's avatar Fenglin Wu
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input: qcom-hv-haptics: update drive waveform data format 



Use 2's complement data format for driving pattern waveform because
the pattern/FIFO samples used in the driver are all having unsigned
data type.

Change-Id: Ib0f7c1c7fe272068177237821debbd3cc1ad4ec8
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent e3ff6ae4

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

+7 −0
Original line number Diff line number Diff line
@@ -58,6 +58,7 @@ 
#define DEFAULT_VMAX_MV				5000



#define HAP_CFG_DRV_WF_SEL_REG			0x49

#define DRV_WF_FMT_BIT				BIT(4)

#define DRV_WF_SEL_MASK				GENMASK(1, 0)



#define HAP_CFG_AUTO_SHUTDOWN_CFG_REG		0x4A
@@ -1881,6 +1882,12 @@ static int haptics_hw_init(struct haptics_chip *chip) 
	if (rc < 0)

		return rc;



	/* Config to use 2's complement values for sample data */

	rc = haptics_masked_write(chip, chip->cfg_addr_base,

			HAP_CFG_DRV_WF_SEL_REG, DRV_WF_FMT_BIT, 0);

	if (rc < 0)

		return rc;



	/* preload effect */

	if (config->preload_effect != -EINVAL) {

		for (i = 0; i < chip->effects_count; i++)