Input: ads7846 - ratelimit the spi_sync error message

[ Upstream commit ccbfea78adf75d3d9e87aa739dab83254f5333fa ]

In case the touch controller is not connected, this message keeps scrolling
on the console indefinitelly. Ratelimit it to avoid filling kernel logs.

"
ads7846 spi2.1: spi_sync --> -22
"

Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20240708211913.171243-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 1753288cedde7e602ddd2a6f78e5ba4a42115693..08a1eac2dfa215ba6d73558fbab10beea3e9467e 100644 (file)
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -819,7 +819,7 @@ static void ads7846_read_state(struct ads7846 *ts)
                m = &ts->msg[msg_idx];
                error = spi_sync(ts->spi, m);
                if (error) {
-                       dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);
+                       dev_err_ratelimited(&ts->spi->dev, "spi_sync --> %d\n", error);
                        packet->ignore = true;
                        return;
                }