Commit 10b0a455 authored by Hans de Goede's avatar Hans de Goede Committed by Dmitry Torokhov
Browse files

Input: hideep - silence error in SW_RESET() 



On some models the first HIDEEP_SYSCON_WDT_CON write alone is enough to
cause the controller to reset, causing the second write to fail:

i2c-hideep_ts: write to register 0x52000014 (0x000001) failed: -121

Switch this write to a raw hideep_pgm_w_mem() to avoid an error getting
logged in this case.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230311114726.182789-2-hdegoede@redhat.com


Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 5af7a77a

drivers/input/touchscreen/hideep.c

+6 −1
Original line number Diff line number Diff line
@@ -271,9 +271,14 @@ static int hideep_pgm_w_reg(struct hideep_ts *ts, u32 addr, u32 val) 


#define SW_RESET_IN_PGM(clk)					\

{								\

	__be32 data = cpu_to_be32(0x01);			\

	hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CNT, (clk));	\

	hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x03);	\

	hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x01);	\

	/*							\

	 * The first write may already cause a reset, use a raw	\

	 * write for the second write to avoid error logging.	\

	 */							\

	hideep_pgm_w_mem(ts, HIDEEP_SYSCON_WDT_CON, &data, 1);	\

}



#define SET_FLASH_PIO(ce)					\