simple.patch

--- a/sound/soc/bcm/bcm2835-i2s.c	2016-05-13 19:49:44.236844756 +0100
+++ b/sound/soc/bcm/bcm2835-i2s.c	2016-05-13 20:15:04.063569480 +0100
@@ -110,6 +110,8 @@
 #define BCM2835_I2S_INT_RXR		BIT(1)
 #define BCM2835_I2S_INT_TXW		BIT(0)
 
+static bool bclk_ratio_integer_div = false;
+
 /* General device struct */
 struct bcm2835_i2s_dev {
 	struct device				*dev;
@@ -296,6 +298,20 @@
 	/* If bclk_ratio already set, use that one. */
 	if (dev->bclk_ratio)
 		bclk_ratio = dev->bclk_ratio;
+	else if (bclk_ratio_integer_div && sampling_rate >= 8000 &&
+			sampling_rate < 192000 && sampling_rate % 8000 == 0) {
+		switch(data_length) {
+		case 16:
+		case 24:
+			bclk_ratio = 50;
+			break;
+		case 32:
+			bclk_ratio = 100;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
 	else
 		/* otherwise calculate a fitting block ratio */
 		bclk_ratio = 2 * data_length;
@@ -752,6 +768,9 @@
 	dev->dma_data[SNDRV_PCM_STREAM_CAPTURE].flags =
 		SND_DMAENGINE_PCM_DAI_FLAG_PACK;
 
+	bclk_ratio_integer_div = of_property_read_bool(pdev->dev.of_node,
+						"brcm,bclk_ratio_integer_div");
+
 	/* BCLK ratio - use default */
 	dev->bclk_ratio = 0;
 
--- a/arch/arm/boot/dts/overlays/Makefile	2016-05-14 08:12:02.162552494 +0100
+++ b/arch/arm/boot/dts/overlays/Makefile	2016-05-14 08:12:02.179552658 +0100
@@ -75,6 +75,8 @@
 dtbo-$(RPI_DT_OVERLAYS) += sdio.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += sdio-1bit.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += sdtweak.dtbo
+dtbo-$(RPI_DT_OVERLAYS) += simple-es9023-dac.dtbo
+dtbo-$(RPI_DT_OVERLAYS) += simple-pcm5102a-dac.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += smi-dev.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += smi-nand.dtbo
 dtbo-$(RPI_DT_OVERLAYS) += smi.dtbo
--- a/arch/arm/boot/dts/overlays/README	2016-05-14 08:12:02.166552533 +0100
+++ b/arch/arm/boot/dts/overlays/README	2016-05-14 08:12:02.179552658 +0100
@@ -988,6 +988,26 @@
         debug                   Enable debug output (default off)
 
 
+Name:   simple-es9023-dac
+Info:   Configures a generic board or HAT using ESS Sabre ES9023 DAC
+Load:   dtoverlay=simple-es9023-dac,<param>,<param>=<val>
+Params: 384k                    Instructs the es9023 codec driver to support
+                                352k8 and 384k sample rates.
+        bclk_ratio_integer_div  Use bclk_ratio=50 for 16 and 24 bps and
+                                bclk_ratio=100 for 32 bps media when sample rate
+                                is a multiple of 8000 and less than 192kHz,
+                                which allows the use of the OSC with integer
+                                divider rather than PLL with fractional (MASH)
+                                divider.
+        card-name               Override the default, "es9023", card name.
+
+
+Name:   simple-pcm5102a-dac
+Info:   Configures a generic board or HAT using the TI PCM510x DAC
+Load:   dtoverlay=simple-pcm5102a-dac,<param>=<val>
+Params: card-name               Override the default, "pcm5102a", card name.
+
+
 Name:   smi
 Info:   Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
 Load:   dtoverlay=smi
--- /dev/null	2016-05-10 03:25:07.508683409 +0100
+++ b/arch/arm/boot/dts/overlays/simple-es9023-dac-overlay.dts	2016-05-15 01:48:29.153985281 +0100
@@ -0,0 +1,47 @@
+// Definitions for a generic board or HAT using ESS Sabre ES9023 DAC
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target = <&i2s>;
+		i2s_overlay: __overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+			es9023_codec: es9023-codec {
+				#sound-dai-cells = <0>;
+				compatible = "ess,es9023";
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sound>;
+		sound_overlay: __overlay__ {
+			compatible = "simple-audio-card";
+			simple-audio-card,format = "i2s";
+			simple-audio-card,name = "es9023";
+			status = "okay";
+			simple-audio-card,cpu {
+				sound-dai = <&i2s>;
+			};
+			simple-audio-card,codec {
+				sound-dai = <&es9023_codec>;
+			};
+		};
+	};
+
+	__overrides__ {
+		384k = <&es9023_codec>,"es9023,384k?";
+		bclk_ratio_integer_div = <&i2s_overlay>,"brcm,bclk_ratio_integer_div?";
+		card-name = <&sound_overlay>,"simple-audio-card,name";
+	};
+};
--- /dev/null	2016-05-10 03:25:07.508683409 +0100
+++ b/arch/arm/boot/dts/overlays/simple-pcm5102a-dac-overlay.dts	2016-05-15 01:42:07.645365639 +0100
@@ -0,0 +1,46 @@
+// Definitions for a generic board or HAT using TI PCM510x
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708";
+
+	fragment@0 {
+		target = <&i2s>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target-path = "/";
+		__overlay__ {
+			pcm5102a_codec: pcm5102a-codec {
+				#sound-dai-cells = <0>;
+				compatible = "ti,pcm5102a";
+				pcm5102a,384k;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sound>;
+		sound_overlay: __overlay__ {
+			compatible = "simple-audio-card";
+			simple-audio-card,format = "i2s";
+			simple-audio-card,name = "pcm5102a";
+			status = "okay";
+			simple-audio-card,cpu {
+				sound-dai = <&i2s>;
+			};
+			simple-audio-card,codec {
+				sound-dai = <&pcm5102a_codec>;
+			};
+		};
+	};
+
+	__overrides__ {
+		card-name = <&sound_overlay>,"simple-audio-card,name";
+	};
+};