Messages in this thread Patch in this message | | | From | Geert Uytterhoeven <> | Subject | [PATCH] Input: st1232 - Fix NORMAL vs. IDLE state handling | Date | Tue, 23 Feb 2021 10:02:01 +0100 |
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NORMAL (0x0) and IDLE (0x4) are really two different states. Hence you cannot check for both using a bitmask, as that checks for IDLE only, breaking operation for devices that are in NORMAL state.
Fix the wait function to report either state as ready.
Fixes: 6524d8eac258452e ("Input: st1232 - add IDLE state as ready condition") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- drivers/input/touchscreen/st1232.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c index 885f0572488dd061..6abae665ca71d8ec 100644 --- a/drivers/input/touchscreen/st1232.c +++ b/drivers/input/touchscreen/st1232.c @@ -94,8 +94,13 @@ static int st1232_ts_wait_ready(struct st1232_ts_data *ts) for (retries = 10; retries; retries--) { error = st1232_ts_read_data(ts, REG_STATUS, 1); - if (!error && ts->read_buf[0] == (STATUS_NORMAL | STATUS_IDLE | ERROR_NONE)) - return 0; + if (!error) { + switch (ts->read_buf[0]) { + case STATUS_NORMAL | ERROR_NONE: + case STATUS_IDLE | ERROR_NONE: + return 0; + } + } usleep_range(1000, 2000); } -- 2.25.1
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