linux-kernel - [PATCH v5 1/2] dmaengine: fsl-edma: clean up unused "fsl,imx8qm-adma" compatible string

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Message-Id: <20240424064508.1886764-2-joy.zou@nxp.com>
Date: Wed, 24 Apr 2024 14:45:07 +0800
From: Joy Zou <joy.zou@....com>
To: frank.li@....com,
	peng.fan@....com,
	vkoul@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: imx@...ts.linux.dev,
	dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH v5 1/2] dmaengine: fsl-edma: clean up unused "fsl,imx8qm-adma" compatible string

The eDMA hardware issue only exist imx8QM A0. A0 never mass production.
So remove the workaround safely.

Signed-off-by: Joy Zou <joy.zou@....com>
---
Changes for v5:
1.remove FSL_EDMA_DRV_QUIRK_SWAPPED in fsl-edma-common.h

Changes for v4:
1.change the subject to keep consistent with the patchset.

Changes for v2:
1. Change the subject.
---
 drivers/dma/fsl-edma-common.c | 16 ++++------------
 drivers/dma/fsl-edma-common.h |  2 --
 drivers/dma/fsl-edma-main.c   |  8 --------
 3 files changed, 4 insertions(+), 22 deletions(-)

diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index f9144b015439..ed93e01282d5 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -75,18 +75,10 @@ static void fsl_edma3_enable_request(struct fsl_edma_chan *fsl_chan)
 
 	flags = fsl_edma_drvflags(fsl_chan);
 	val = edma_readl_chreg(fsl_chan, ch_sbr);
-	/* Remote/local swapped wrongly on iMX8 QM Audio edma */
-	if (flags & FSL_EDMA_DRV_QUIRK_SWAPPED) {
-		if (!fsl_chan->is_rxchan)
-			val |= EDMA_V3_CH_SBR_RD;
-		else
-			val |= EDMA_V3_CH_SBR_WR;
-	} else {
-		if (fsl_chan->is_rxchan)
-			val |= EDMA_V3_CH_SBR_RD;
-		else
-			val |= EDMA_V3_CH_SBR_WR;
-	}
+	if (fsl_chan->is_rxchan)
+		val |= EDMA_V3_CH_SBR_RD;
+	else
+		val |= EDMA_V3_CH_SBR_WR;
 
 	if (fsl_chan->is_remote)
 		val &= ~(EDMA_V3_CH_SBR_RD | EDMA_V3_CH_SBR_WR);
diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h
index 01157912bfd5..3f93ebb890b3 100644
--- a/drivers/dma/fsl-edma-common.h
+++ b/drivers/dma/fsl-edma-common.h
@@ -194,8 +194,6 @@ struct fsl_edma_desc {
 #define FSL_EDMA_DRV_HAS_PD		BIT(5)
 #define FSL_EDMA_DRV_HAS_CHCLK		BIT(6)
 #define FSL_EDMA_DRV_HAS_CHMUX		BIT(7)
-/* imx8 QM audio edma remote local swapped */
-#define FSL_EDMA_DRV_QUIRK_SWAPPED	BIT(8)
 /* control and status register is in tcd address space, edma3 reg layout */
 #define FSL_EDMA_DRV_SPLIT_REG		BIT(9)
 #define FSL_EDMA_DRV_BUS_8BYTE		BIT(10)
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index 755a3dc3b0a7..b06fa147d6ba 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -349,13 +349,6 @@ static struct fsl_edma_drvdata imx8qm_data = {
 	.setup_irq = fsl_edma3_irq_init,
 };
 
-static struct fsl_edma_drvdata imx8qm_audio_data = {
-	.flags = FSL_EDMA_DRV_QUIRK_SWAPPED | FSL_EDMA_DRV_HAS_PD | FSL_EDMA_DRV_EDMA3,
-	.chreg_space_sz = 0x10000,
-	.chreg_off = 0x10000,
-	.setup_irq = fsl_edma3_irq_init,
-};
-
 static struct fsl_edma_drvdata imx8ulp_data = {
 	.flags = FSL_EDMA_DRV_HAS_CHMUX | FSL_EDMA_DRV_HAS_CHCLK | FSL_EDMA_DRV_HAS_DMACLK |
 		 FSL_EDMA_DRV_EDMA3,
@@ -397,7 +390,6 @@ static const struct of_device_id fsl_edma_dt_ids[] = {
 	{ .compatible = "fsl,ls1028a-edma", .data = &ls1028a_data},
 	{ .compatible = "fsl,imx7ulp-edma", .data = &imx7ulp_data},
 	{ .compatible = "fsl,imx8qm-edma", .data = &imx8qm_data},
-	{ .compatible = "fsl,imx8qm-adma", .data = &imx8qm_audio_data},
 	{ .compatible = "fsl,imx8ulp-edma", .data = &imx8ulp_data},
 	{ .compatible = "fsl,imx93-edma3", .data = &imx93_data3},
 	{ .compatible = "fsl,imx93-edma4", .data = &imx93_data4},
-- 
2.37.1