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-rw-r--r--Documentation/devicetree/bindings/sound/fsl,esai.txt5
-rw-r--r--sound/soc/fsl/fsl_esai.c5
2 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,esai.txt b/Documentation/devicetree/bindings/sound/fsl,esai.txt
index d7b99fa637b5..aeb8c4a0b88d 100644
--- a/Documentation/devicetree/bindings/sound/fsl,esai.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,esai.txt
@@ -34,6 +34,10 @@ Required properties:
that ESAI would work in the synchronous mode, which means all the settings
for Receiving would be duplicated from Transmition related registers.
+ - big-endian : If this property is absent, the native endian mode will
+ be in use as default, or the big endian mode will be in use for all the
+ device registers.
+
Example:
esai: esai@02024000 {
@@ -46,5 +50,6 @@ esai: esai@02024000 {
dma-names = "rx", "tx";
fsl,fifo-depth = <128>;
fsl,esai-synchronous;
+ big-endian;
status = "disabled";
};
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index 4efe951b249d..0ba37005ab04 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -678,7 +678,7 @@ static bool fsl_esai_writeable_reg(struct device *dev, unsigned int reg)
}
}
-static const struct regmap_config fsl_esai_regmap_config = {
+static struct regmap_config fsl_esai_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
@@ -704,6 +704,9 @@ static int fsl_esai_probe(struct platform_device *pdev)
esai_priv->pdev = pdev;
strcpy(esai_priv->name, np->name);
+ if (of_property_read_bool(np, "big-endian"))
+ fsl_esai_regmap_config.val_format_endian = REGMAP_ENDIAN_BIG;
+
/* Get the addresses and IRQ */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(&pdev->dev, res);