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FAILED: patch "[PATCH] ASoC: fsl_ssi: Fix TDM slot setup for I2S mode" failed to apply to 4.9-stable tree

PATCH [email protected] 1 participant 1 message Mar 20, 2021

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Stable branch Sound ASoC Freescale SoC sound drivers
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The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 87263968516fb9507d6215d53f44052627fae8d8 Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <[email protected]>
Date: Tue, 16 Feb 2021 14:42:21 +0300
Subject: [PATCH] ASoC: fsl_ssi: Fix TDM slot setup for I2S mode

When using the driver in I2S TDM mode, the _fsl_ssi_set_dai_fmt() function rewrites the number of slots previously set by the fsl_ssi_set_dai_tdm_slot() function to 2 by default.
To fix this, let's use the saved slot count value or, if TDM is not used and the slot count is not set, proceed as before.

Fixes 4f14f5c11db1 ("ASoC: fsl_ssi: Fix number of words per frame for I2S-slave mode")
Signed-off-by Alexander Shiyan <[email protected]>
Acked-by Nicolin Chen <[email protected]>
Link https://lore.kernel.org/r/[email protected] open here
Signed-off-by Mark Brown <[email protected]>
sound/soc/fsl/fsl_ssi.c +4 -2
index 57811743c294..ad8af3f450e2 100644
@@ -878,6 +878,7 @@ static int fsl_ssi_hw_free(struct snd_pcm_substream *substream,
 static int _fsl_ssi_set_dai_fmt(struct fsl_ssi *ssi, unsigned int fmt)
 {
 	u32 strcr = 0, scr = 0, stcr, srcr, mask;
+	unsigned int slots;
 
 	ssi->dai_fmt = fmt;
 

@@ -909,10 +910,11 @@ static int _fsl_ssi_set_dai_fmt(struct fsl_ssi *ssi, unsigned int fmt)
 			return -EINVAL;
 		}
 
+		slots = ssi->slots ? : 2;
 		regmap_update_bits(ssi->regs, REG_SSI_STCCR,
-				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(2));
+				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(slots));
 		regmap_update_bits(ssi->regs, REG_SSI_SRCCR,
-				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(2));
+				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(slots));
 
 		/* Data on rising edge of bclk, frame low, 1clk before data */
 		strcr |= SSI_STCR_TFSI | SSI_STCR_TSCKP | SSI_STCR_TEFS;