6.4-stable review patch. If anyone has any objections, please let me know.
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From: Vijendar Mukunda Vijendar.Mukunda@amd.com
[ Upstream commit 38592ae6dc9f84b7a994c43de2136b8115ca30f6 ]
DSP_SW_INTR_STAT_OFFSET is a common interrupt register which will be accessed by both ACP firmware and driver. This register contains register bits corresponds to host to dsp interrupts and vice versa.
when dsp to host interrupt is reported, only clear dsp to host interrupt bit in DSP_SW_INTR_STAT_OFFSET.
Fixes: 2e7c6652f9b8 ("ASoC: SOF: amd: Fix for handling spurious interrupts from DSP")
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com Link: https://lore.kernel.org/r/20230823073340.2829821-7-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/sof/amd/acp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c index 2ae76bcd3590c..973bd81059852 100644 --- a/sound/soc/sof/amd/acp.c +++ b/sound/soc/sof/amd/acp.c @@ -351,9 +351,9 @@ static irqreturn_t acp_irq_handler(int irq, void *dev_id) unsigned int val;
val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, base + DSP_SW_INTR_STAT_OFFSET); - if (val) { - val |= ACP_DSP_TO_HOST_IRQ; - snd_sof_dsp_write(sdev, ACP_DSP_BAR, base + DSP_SW_INTR_STAT_OFFSET, val); + if (val & ACP_DSP_TO_HOST_IRQ) { + snd_sof_dsp_write(sdev, ACP_DSP_BAR, base + DSP_SW_INTR_STAT_OFFSET, + ACP_DSP_TO_HOST_IRQ); return IRQ_WAKE_THREAD; }