From: Luca Weiss luca@z3ntu.xyz
[ Upstream commit efef661dfa6bf8cbafe4cd6a97433fcef0118967 ]
When doing the initial startup there's no need to poll without any delay and spam the I2C bus.
Let's sleep 15ms between each attempt, which is the same time as used in the vendor driver.
Fixes: 7132fe4f5687 ("Input: drv260x - add TI drv260x haptics driver") Signed-off-by: Luca Weiss luca@z3ntu.xyz Link: https://lore.kernel.org/r/20230430-drv260x-improvements-v1-2-1fb28b4cc698@z3... Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/misc/drv260x.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c index 8a9ebfc04a2d9..85371fa1a03ed 100644 --- a/drivers/input/misc/drv260x.c +++ b/drivers/input/misc/drv260x.c @@ -435,6 +435,7 @@ static int drv260x_init(struct drv260x_data *haptics) }
do { + usleep_range(15000, 15500); error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf); if (error) { dev_err(&haptics->client->dev,