brcm2708: add linux 4.19 support

Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 111 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0404-ASoC-tlv320aic32x4-Properly-Set-Processing-Blocks.patch b/target/linux/brcm2708/patches-4.19/950-0404-ASoC-tlv320aic32x4-Properly-Set-Processing-Blocks.patch
new file mode 100644
index 0000000000..41675f7a53
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0404-ASoC-tlv320aic32x4-Properly-Set-Processing-Blocks.patch
@@ -0,0 +1,111 @@
+From d41102524cf14a1098a735add06aa4d67c631130 Mon Sep 17 00:00:00 2001
+From: Annaliese McDermond <nh6z@nh6z.net>
+Date: Wed, 20 Mar 2019 19:38:44 -0700
+Subject: [PATCH 404/703] ASoC: tlv320aic32x4: Properly Set Processing Blocks
+
+commit c95e3a4b96293403a427b5185e60fad28af51fdd upstream.
+
+Different processing blocks are required for different sampling
+rates and power parameters.  Set the processing blocks based
+on this information.
+
+Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
+Signed-off-by: Mark Brown <broonie@kernel.org>
+---
+ sound/soc/codecs/tlv320aic32x4.c | 56 ++++++++++++++++++++------------
+ 1 file changed, 36 insertions(+), 20 deletions(-)
+
+--- a/sound/soc/codecs/tlv320aic32x4.c
++++ b/sound/soc/codecs/tlv320aic32x4.c
+@@ -59,6 +59,8 @@ struct aic32x4_rate_divs {
+ 	u8 nadc;
+ 	u8 madc;
+ 	u8 blck_N;
++	u8 r_block;
++	u8 p_block;
+ };
+ 
+ struct aic32x4_priv {
+@@ -307,34 +309,34 @@ static const struct snd_kcontrol_new aic
+ 
+ static const struct aic32x4_rate_divs aic32x4_divs[] = {
+ 	/* 8k rate */
+-	{12000000, 8000, 1, 7, 6800, 768, 5, 3, 128, 5, 18, 24},
+-	{24000000, 8000, 2, 7, 6800, 768, 15, 1, 64, 45, 4, 24},
+-	{25000000, 8000, 2, 7, 3728, 768, 15, 1, 64, 45, 4, 24},
++	{12000000, 8000, 1, 7, 6800, 768, 5, 3, 128, 5, 18, 24, 1, 1},
++	{24000000, 8000, 2, 7, 6800, 768, 15, 1, 64, 45, 4, 24, 1, 1},
++	{25000000, 8000, 2, 7, 3728, 768, 15, 1, 64, 45, 4, 24, 1, 1},
+ 	/* 11.025k rate */
+-	{12000000, 11025, 1, 7, 5264, 512, 8, 2, 128, 8, 8, 16},
+-	{24000000, 11025, 2, 7, 5264, 512, 16, 1, 64, 32, 4, 16},
++	{12000000, 11025, 1, 7, 5264, 512, 8, 2, 128, 8, 8, 16, 1, 1},
++	{24000000, 11025, 2, 7, 5264, 512, 16, 1, 64, 32, 4, 16, 1, 1},
+ 	/* 16k rate */
+-	{12000000, 16000, 1, 7, 6800, 384, 5, 3, 128, 5, 9, 12},
+-	{24000000, 16000, 2, 7, 6800, 384, 15, 1, 64, 18, 5, 12},
+-	{25000000, 16000, 2, 7, 3728, 384, 15, 1, 64, 18, 5, 12},
++	{12000000, 16000, 1, 7, 6800, 384, 5, 3, 128, 5, 9, 12, 1, 1},
++	{24000000, 16000, 2, 7, 6800, 384, 15, 1, 64, 18, 5, 12, 1, 1},
++	{25000000, 16000, 2, 7, 3728, 384, 15, 1, 64, 18, 5, 12, 1, 1},
+ 	/* 22.05k rate */
+-	{12000000, 22050, 1, 7, 5264, 256, 4, 4, 128, 4, 8, 8},
+-	{24000000, 22050, 2, 7, 5264, 256, 16, 1, 64, 16, 4, 8},
+-	{25000000, 22050, 2, 7, 2253, 256, 16, 1, 64, 16, 4, 8},
++	{12000000, 22050, 1, 7, 5264, 256, 4, 4, 128, 4, 8, 8, 1, 1},
++	{24000000, 22050, 2, 7, 5264, 256, 16, 1, 64, 16, 4, 8, 1, 1},
++	{25000000, 22050, 2, 7, 2253, 256, 16, 1, 64, 16, 4, 8, 1, 1},
+ 	/* 32k rate */
+-	{12000000, 32000, 1, 7, 1680, 192, 2, 7, 64, 2, 21, 6},
+-	{24000000, 32000, 2, 7, 1680, 192, 7, 2, 64, 7, 6, 6},
++	{12000000, 32000, 1, 7, 1680, 192, 2, 7, 64, 2, 21, 6, 1, 1},
++	{24000000, 32000, 2, 7, 1680, 192, 7, 2, 64, 7, 6, 6, 1, 1},
+ 	/* 44.1k rate */
+-	{12000000, 44100, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4},
+-	{24000000, 44100, 2, 7, 5264, 128, 8, 2, 64, 8, 4, 4},
+-	{25000000, 44100, 2, 7, 2253, 128, 8, 2, 64, 8, 4, 4},
++	{12000000, 44100, 1, 7, 5264, 128, 2, 8, 128, 2, 8, 4, 1, 1},
++	{24000000, 44100, 2, 7, 5264, 128, 8, 2, 64, 8, 4, 4, 1, 1},
++	{25000000, 44100, 2, 7, 2253, 128, 8, 2, 64, 8, 4, 4, 1, 1},
+ 	/* 48k rate */
+-	{12000000, 48000, 1, 8, 1920, 128, 2, 8, 128, 2, 8, 4},
+-	{24000000, 48000, 2, 8, 1920, 128, 8, 2, 64, 8, 4, 4},
+-	{25000000, 48000, 2, 7, 8643, 128, 8, 2, 64, 8, 4, 4},
++	{12000000, 48000, 1, 8, 1920, 128, 2, 8, 128, 2, 8, 4, 1, 1},
++	{24000000, 48000, 2, 8, 1920, 128, 8, 2, 64, 8, 4, 4, 1, 1},
++	{25000000, 48000, 2, 7, 8643, 128, 8, 2, 64, 8, 4, 4, 1, 1},
+ 
+ 	/* 96k rate */
+-	{25000000, 96000, 2, 7, 8643, 64, 4, 4, 64, 4, 4, 1},
++	{25000000, 96000, 2, 7, 8643, 64, 4, 4, 64, 4, 4, 1, 1, 9},
+ };
+ 
+ static const struct snd_kcontrol_new hpl_output_mixer_controls[] = {
+@@ -698,6 +700,18 @@ static int aic32x4_set_dai_fmt(struct sn
+ 	return 0;
+ }
+ 
++static int aic32x4_set_processing_blocks(struct snd_soc_component *component,
++						u8 r_block, u8 p_block)
++{
++	if (r_block > 18 || p_block > 25)
++		return -EINVAL;
++
++	snd_soc_component_write(component, AIC32X4_ADCSPB, r_block);
++	snd_soc_component_write(component, AIC32X4_DACSPB, p_block);
++
++	return 0;
++}
++
+ static int aic32x4_setup_clocks(struct snd_soc_component *component,
+ 				unsigned int sample_rate,
+ 				unsigned int parent_rate)
+@@ -710,6 +724,8 @@ static int aic32x4_setup_clocks(struct s
+ 		return i;
+ 	}
+ 
++	aic32x4_set_processing_blocks(component, aic32x4_divs[i].r_block, aic32x4_divs[i].p_block);
++
+ 	/* MCLK as PLL_CLKIN */
+ 	snd_soc_component_update_bits(component, AIC32X4_CLKMUX, AIC32X4_PLL_CLKIN_MASK,
+ 			    AIC32X4_PLL_CLKIN_MCLK << AIC32X4_PLL_CLKIN_SHIFT);