[PATCH] ASoC: SOF: amd: Skip IRAM/DRAM size modification for Steam Deck OLED

[Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>]

The recent introduction of the ACP/PSP communication for IRAM/DRAM fence
register modification breaks the audio support on Valve's Steam Deck
OLED device.

It causes IPC timeout errors when trying to load DSP topology during
probing:

1707255557.688176 kernel: snd_sof_amd_vangogh 0000:04:00.5: ipc tx timed out for 0x30100000 (msg/reply size: 48/0)
1707255557.689035 kernel: snd_sof_amd_vangogh 0000:04:00.5: ------------[ IPC dump start ]------------
1707255557.689421 kernel: snd_sof_amd_vangogh 0000:04:00.5: dsp_msg = 0x0 dsp_ack = 0x91d14f6f host_msg = 0x1 host_ack = 0xead0f1a4 irq_stat >
1707255557.689730 kernel: snd_sof_amd_vangogh 0000:04:00.5: ------------[ IPC dump end ]------------
1707255557.690074 kernel: snd_sof_amd_vangogh 0000:04:00.5: ------------[ DSP dump start ]------------
1707255557.690376 kernel: snd_sof_amd_vangogh 0000:04:00.5: IPC timeout
1707255557.690744 kernel: snd_sof_amd_vangogh 0000:04:00.5: fw_state: SOF_FW_BOOT_COMPLETE (7)
1707255557.691037 kernel: snd_sof_amd_vangogh 0000:04:00.5: invalid header size 0xdb43fe7. FW oops is bogus
1707255557.694824 kernel: snd_sof_amd_vangogh 0000:04:00.5: unexpected fault 0x6942d3b3 trace 0x6942d3b3
1707255557.695392 kernel: snd_sof_amd_vangogh 0000:04:00.5: ------------[ DSP dump end ]------------
1707255557.695755 kernel: snd_sof_amd_vangogh 0000:04:00.5: Failed to setup widget PIPELINE.6.ACPHS1.IN
1707255557.696069 kernel: snd_sof_amd_vangogh 0000:04:00.5: error: tplg component load failed -110
1707255557.696374 kernel: snd_sof_amd_vangogh 0000:04:00.5: error: failed to load DSP topology -22
1707255557.697904 kernel: snd_sof_amd_vangogh 0000:04:00.5: ASoC: error at snd_soc_component_probe on 0000:04:00.5: -22
1707255557.698405 kernel: sof_mach nau8821-max: ASoC: failed to instantiate card -22
1707255557.701061 kernel: sof_mach nau8821-max: error -EINVAL: Failed to register card(sof-nau8821-max)
1707255557.701624 kernel: sof_mach: probe of nau8821-max failed with error -22

It's worth noting this is the only Vangogh compatible device for which
signed firmware support has been enabled in AMD ACP SOF driver via
acp_sof_quirk_table.

Hence, use this information and skip IRAM/DRAM size modification for Vangogh
platforms having the signed_fw_image field set.

Fixes: 55d7bbe43346 ("ASoC: SOF: amd: Add acp-psp mailbox interface for iram-dram fence register modification")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
---
 sound/soc/sof/amd/acp.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c
index 9b3c26210db3..71689d2a5b56 100644
--- a/sound/soc/sof/amd/acp.c
+++ b/sound/soc/sof/amd/acp.c
@@ -278,7 +278,14 @@ int configure_and_run_sha_dma(struct acp_dev_data *adata, void *image_addr,
 	}
 
 	/* psp_send_cmd only required for vangogh platform (rev - 5) */
-	if (desc->rev == 5) {
+	/*
+	 * FIXME: This causes IPC timeout when trying to load DSP topology
+	 * on the Steam Deck OLED device matching acp_sof_quirk_table above.
+	 * The quirk enables signed firmware support on this particular
+	 * Vangogh compatible device, hence skip IRAM/DRAM size modification
+	 * when signed_fw_image is set.
+	 */
+	if (desc->rev == 5 && !adata->signed_fw_image) {
 		/* Modify IRAM and DRAM size */
 		ret = psp_send_cmd(adata, MBOX_ACP_IRAM_DRAM_FENCE_COMMAND | IRAM_DRAM_FENCE_2);
 		if (ret)
-- 
2.43.0