[PATCH 1/7] HID: hid-steam: Avoid overwriting smoothing parameter

[Vicki Pfau <vi@endrift.com>]

The original implementation of this driver incorrectly guessed the function of
this register. It's not only unnecessary to write to this register for lizard
mode but actually counter-productive since it overwrites whatever previous
value was intentionally set, for example by Steam.

Signed-off-by: Vicki Pfau <vi@endrift.com>
---
 drivers/hid/hid-steam.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c
index b110818fc945..7aefd52e945a 100644
--- a/drivers/hid/hid-steam.c
+++ b/drivers/hid/hid-steam.c
@@ -340,9 +340,6 @@ static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
 		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MAPPINGS);
 		/* enable mouse */
 		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MOUSE);
-		steam_write_registers(steam,
-			STEAM_REG_RPAD_MARGIN, 0x01, /* enable margin */
-			0);
 
 		cancel_delayed_work_sync(&steam->heartbeat);
 	} else {
@@ -351,7 +348,6 @@ static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
 
 		if (steam->quirks & STEAM_QUIRK_DECK) {
 			steam_write_registers(steam,
-				STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
 				STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
 				STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
 				STEAM_REG_LPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
@@ -365,7 +361,6 @@ static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
 				schedule_delayed_work(&steam->heartbeat, 5 * HZ);
 		} else {
 			steam_write_registers(steam,
-				STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
 				STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
 				STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
 				0);
-- 
2.42.0