This is a note to let you know that I've just added the patch titled
ASoC: rsnd: Fix "status check failed" spam for multi-SSI
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-rsnd-fix-status-check-failed-spam-for-multi-ssi.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 160fea7951354fe7c9020ad94065166e1308aa0c
Author: Matthias Blankertz <matthias.blankertz@xxxxxxxxxxx>
Date: Fri Apr 17 17:30:17 2020 +0200
ASoC: rsnd: Fix "status check failed" spam for multi-SSI
[ Upstream commit 54cb6221688660670a2e430892d7f4e6370263b8 ]
Fix the rsnd_ssi_stop function to skip disabling the individual SSIs of
a multi-SSI setup, as the actual stop is performed by rsnd_ssiu_stop_gen2
- the same logic as in rsnd_ssi_start. The attempt to disable these SSIs
was harmless, but caused a "status check failed" message to be printed
for every SSI in the multi-SSI setup.
The disabling of interrupts is still performed, as they are enabled for
all SSIs in rsnd_ssi_init, but care is taken to not accidentally set the
EN bit for an SSI where it was not set by rsnd_ssi_start.
Signed-off-by: Matthias Blankertz <matthias.blankertz@xxxxxxxxxxx>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200417153017.1744454-3-matthias.blankertz@xxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 9900a4f6f4e53..4a7d3413917fc 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -594,10 +594,16 @@ static int rsnd_ssi_stop(struct rsnd_mod *mod,
* Capture: It might not receave data. Do nothing
*/
if (rsnd_io_is_play(io)) {
- rsnd_mod_write(mod, SSICR, cr | EN);
+ rsnd_mod_write(mod, SSICR, cr | ssi->cr_en);
rsnd_ssi_status_check(mod, DIRQ);
}
+ /* In multi-SSI mode, stop is performed by setting ssi0129 in
+ * SSI_CONTROL to 0 (in rsnd_ssio_stop_gen2). Do nothing here.
+ */
+ if (rsnd_ssi_multi_slaves_runtime(io))
+ return 0;
+
/*
* disable SSI,
* and, wait idle state
