Implementing the hardware recommendation to toggle the chipset reset.
Fixes: 566f5ca97680 ("mei: Add transport driver for IVSC device")
Cc: stable@xxxxxxxxxxxxxxx # for 6.8+
Signed-off-by: Wentong Wu <wentong.wu@xxxxxxxxx>
Tested-by: Jason Chen <jason.z.chen@xxxxxxxxx>
---
drivers/misc/mei/vsc-tp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/misc/mei/vsc-tp.c b/drivers/misc/mei/vsc-tp.c
index e6a98dba8a73..dcab5174bf00 100644
--- a/drivers/misc/mei/vsc-tp.c
+++ b/drivers/misc/mei/vsc-tp.c
@@ -350,6 +350,8 @@ void vsc_tp_reset(struct vsc_tp *tp)
disable_irq(tp->spi->irq);
/* toggle reset pin */
+ gpiod_set_value_cansleep(tp->resetfw, 1);
+ msleep(VSC_TP_RESET_PIN_TOGGLE_INTERVAL_MS);
gpiod_set_value_cansleep(tp->resetfw, 0);
msleep(VSC_TP_RESET_PIN_TOGGLE_INTERVAL_MS);
gpiod_set_value_cansleep(tp->resetfw, 1);
--
2.34.1
