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From: Brian Norris <computersforpeace@gmail.com>
Date: Thu, 15 Dec 2022 01:33:45 -0800
Subject: [PATCH] ASoC: qcom: lpass-cpu: Fix fallback SD line index handling

[[ Submitted upstream as:
   https://lore.kernel.org/all/20221231061545.2110253-1-computersforpeace@gmail.com/
   Currently queued for -next (v6.3?) as:
   000bca8d706d ASoC: qcom: lpass-cpu: Fix fallback SD line index handling
]]

These indices should reference the ID placed within the dai_driver
array, not the indices of the array itself.

This fixes commit 4ff028f6c108 ("ASoC: qcom: lpass-cpu: Make I2S SD
lines configurable"), which among others, broke IPQ8064 audio
(sound/soc/qcom/lpass-ipq806x.c) because it uses ID 4 but we'd stop
initializing the mi2s_playback_sd_mode and mi2s_capture_sd_mode arrays
at ID 0.

Fixes: 4ff028f6c108 ("ASoC: qcom: lpass-cpu: Make I2S SD lines configurable")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 sound/soc/qcom/lpass-cpu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -851,10 +851,11 @@ static void of_lpass_cpu_parse_dai_data(
 					struct lpass_data *data)
 {
 	struct device_node *node;
-	int ret, id;
+	int ret, i, id;
 
 	/* Allow all channels by default for backwards compatibility */
-	for (id = 0; id < data->variant->num_dai; id++) {
+	for (i = 0; i < data->variant->num_dai; i++) {
+		id = data->variant->dai_driver[i].id;
 		data->mi2s_playback_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH;
 		data->mi2s_capture_sd_mode[id] = LPAIF_I2SCTL_MODE_8CH;
 	}