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, 210 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0408-ASoC-tlv320aic32x4-Model-BDIV-divider-in-CCF.patch b/target/linux/brcm2708/patches-4.19/950-0408-ASoC-tlv320aic32x4-Model-BDIV-divider-in-CCF.patch
new file mode 100644
index 0000000000..41e5e4bfd2
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0408-ASoC-tlv320aic32x4-Model-BDIV-divider-in-CCF.patch
@@ -0,0 +1,210 @@
+From f057c2ccc9c5fddca55fb42032395cf355f918e8 Mon Sep 17 00:00:00 2001
+From: Annaliese McDermond <nh6z@nh6z.net>
+Date: Thu, 21 Mar 2019 17:58:48 -0700
+Subject: [PATCH 408/703] ASoC: tlv320aic32x4: Model BDIV divider in CCF
+
+commit 9b484124ebd906c4d6bc826cc0d417e80cc1105c upstream.
+
+Model and manage BDIV divider as components in the Core
+Clock Framework.  This should allow us to do some more complex
+clock management and power control.  Also, some of the
+on-board chip clocks can be exposed to the outside, and this
+change will make those clocks easier to consume by other
+parts of the kernel.
+
+Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
+Signed-off-by: Mark Brown <broonie@kernel.org>
+---
+ sound/soc/codecs/tlv320aic32x4-clk.c | 36 ++++++++++++++++++
+ sound/soc/codecs/tlv320aic32x4.c     | 56 +++++++++++++---------------
+ 2 files changed, 62 insertions(+), 30 deletions(-)
+
+--- a/sound/soc/codecs/tlv320aic32x4-clk.c
++++ b/sound/soc/codecs/tlv320aic32x4-clk.c
+@@ -351,6 +351,34 @@ static const struct clk_ops aic32x4_div_
+ 	.recalc_rate = clk_aic32x4_div_recalc_rate,
+ };
+ 
++static int clk_aic32x4_bdiv_set_parent(struct clk_hw *hw, u8 index)
++{
++	struct clk_aic32x4 *mux = to_clk_aic32x4(hw);
++
++	return regmap_update_bits(mux->regmap, AIC32X4_IFACE3,
++				AIC32X4_BDIVCLK_MASK, index);
++}
++
++static u8 clk_aic32x4_bdiv_get_parent(struct clk_hw *hw)
++{
++	struct clk_aic32x4 *mux = to_clk_aic32x4(hw);
++	unsigned int val;
++
++	regmap_read(mux->regmap, AIC32X4_IFACE3, &val);
++
++	return val & AIC32X4_BDIVCLK_MASK;
++}
++
++static const struct clk_ops aic32x4_bdiv_ops = {
++	.prepare = clk_aic32x4_div_prepare,
++	.unprepare = clk_aic32x4_div_unprepare,
++	.set_parent = clk_aic32x4_bdiv_set_parent,
++	.get_parent = clk_aic32x4_bdiv_get_parent,
++	.set_rate = clk_aic32x4_div_set_rate,
++	.round_rate = clk_aic32x4_div_round_rate,
++	.recalc_rate = clk_aic32x4_div_recalc_rate,
++};
++
+ static struct aic32x4_clkdesc aic32x4_clkdesc_array[] = {
+ 	{
+ 		.name = "pll",
+@@ -396,6 +424,14 @@ static struct aic32x4_clkdesc aic32x4_cl
+ 		.ops = &aic32x4_div_ops,
+ 		.reg = AIC32X4_MADC,
+ 	},
++	{
++		.name = "bdiv",
++		.parent_names =
++			(const char *[]) { "ndac", "mdac", "nadc", "madc" },
++		.num_parents = 4,
++		.ops = &aic32x4_bdiv_ops,
++		.reg = AIC32X4_BCLKN,
++	},
+ };
+ 
+ static struct clk *aic32x4_register_clk(struct device *dev,
+--- a/sound/soc/codecs/tlv320aic32x4.c
++++ b/sound/soc/codecs/tlv320aic32x4.c
+@@ -57,7 +57,7 @@ struct aic32x4_rate_divs {
+ 	u8 aosr;
+ 	unsigned long nadc_rate;
+ 	unsigned long madc_rate;
+-	u8 blck_N;
++	unsigned long bdiv_rate;
+ 	u8 r_block;
+ 	u8 p_block;
+ };
+@@ -310,53 +310,53 @@ static const struct snd_kcontrol_new aic
+ static const struct aic32x4_rate_divs aic32x4_divs[] = {
+ 	/* 8k rate */
+ 	{ 12000000, 8000, 57120000, 768, 18432000, 6144000, 128, 18432000,
+-		1024000, 24, 1, 1 },
++		1024000, 256000, 1, 1 },
+ 	{ 24000000, 8000, 57120000, 768, 6144000, 6144000, 64, 2048000,
+-		512000, 24, 1, 1 },
++		512000, 256000, 1, 1 },
+ 	{ 25000000, 8000, 32620000, 768, 6144000, 6144000, 64, 2048000,
+-		512000, 24, 1, 1 },
++		512000, 256000, 1, 1 },
+ 	/* 11.025k rate */
+ 	{ 12000000, 11025, 44217600, 512, 11289600, 5644800, 128, 11289600,
+-		1411200, 16, 1, 1 },
++		1411200, 352800, 1, 1 },
+ 	{ 24000000, 11025, 44217600, 512, 5644800, 5644800, 64, 2822400,
+-		705600, 16, 1, 1 },
++		705600, 352800, 1, 1 },
+ 	/* 16k rate */
+ 	{ 12000000, 16000, 57120000, 384, 18432000, 6144000, 128, 18432000,
+-		2048000, 12, 1, 1 },
++		2048000, 512000, 1, 1 },
+ 	{ 24000000, 16000, 57120000, 384, 6144000, 6144000, 64, 5120000,
+-		1024000, 12, 1, 1 },
++		1024000, 512000, 1, 1 },
+ 	{ 25000000, 16000, 32620000, 384, 6144000, 6144000, 64, 5120000,
+-		1024000, 12, 1, 1 },
++		1024000, 512000, 1, 1 },
+ 	/* 22.05k rate */
+ 	{ 12000000, 22050, 44217600, 256, 22579200, 5644800, 128, 22579200,
+-		2822400, 8, 1, 1 },
++		2822400, 705600, 1, 1 },
+ 	{ 24000000, 22050, 44217600, 256, 5644800, 5644800, 64, 5644800,
+-		1411200, 8, 1, 1 },
++		1411200, 705600, 1, 1 },
+ 	{ 25000000, 22050, 19713750, 256, 5644800, 5644800, 64, 5644800,
+-		1411200, 8, 1, 1 },
++		1411200, 705600, 1, 1 },
+ 	/* 32k rate */
+ 	{ 12000000, 32000, 14112000, 192, 43008000, 6144000, 64, 43008000,
+-		2048000, 6, 1, 1 },
++		2048000, 1024000, 1, 1 },
+ 	{ 24000000, 32000, 14112000, 192, 12288000, 6144000, 64, 12288000,
+-		2048000, 6, 1, 1 },
++		2048000, 1024000, 1, 1 },
+ 	/* 44.1k rate */
+ 	{ 12000000, 44100, 44217600, 128, 45158400, 5644800, 128, 45158400,
+-		5644800, 4, 1, 1 },
++		5644800, 1411200, 1, 1 },
+ 	{ 24000000, 44100, 44217600, 128, 11289600, 5644800, 64, 11289600,
+-		2822400, 4, 1, 1 },
++		2822400, 1411200, 1, 1 },
+ 	{ 25000000, 44100, 19713750, 128, 11289600, 5644800, 64, 11289600,
+-		2822400, 4, 1, 1 },
++		2822400, 1411200, 1, 1 },
+ 	/* 48k rate */
+ 	{ 12000000, 48000, 18432000, 128, 49152000, 6144000, 128, 49152000,
+-		6144000, 4, 1, 1 },
++		6144000, 1536000, 1, 1 },
+ 	{ 24000000, 48000, 18432000, 128, 12288000, 6144000, 64, 12288000,
+-		3072000, 4, 1, 1 },
++		3072000, 1536000, 1, 1 },
+ 	{ 25000000, 48000, 75626250, 128, 12288000, 6144000, 64, 12288000,
+-		3072000, 4, 1, 1 },
++		3072000, 1536000, 1, 1 },
+ 
+ 	/* 96k rate */
+ 	{ 25000000, 96000, 75626250, 64, 24576000, 6144000, 64, 24576000,
+-		6144000, 1, 1, 9 },
++		6144000, 3072000, 1, 9 },
+ };
+ 
+ static const struct snd_kcontrol_new hpl_output_mixer_controls[] = {
+@@ -745,6 +745,7 @@ static int aic32x4_setup_clocks(struct s
+ 		{ .id = "madc" },
+ 		{ .id = "ndac" },
+ 		{ .id = "mdac" },
++		{ .id = "bdiv" },
+ 	};
+ 
+ 	i = aic32x4_get_divs(parent_rate, sample_rate);
+@@ -762,14 +763,10 @@ static int aic32x4_setup_clocks(struct s
+ 	clk_set_rate(clocks[2].clk, aic32x4_divs[i].madc_rate);
+ 	clk_set_rate(clocks[3].clk, aic32x4_divs[i].ndac_rate);
+ 	clk_set_rate(clocks[4].clk, aic32x4_divs[i].mdac_rate);
++	clk_set_rate(clocks[5].clk, aic32x4_divs[i].bdiv_rate);
+ 
+ 	aic32x4_set_processing_blocks(component, aic32x4_divs[i].r_block, aic32x4_divs[i].p_block);
+ 
+-	/* DAC_MOD_CLK as BDIV_CLKIN */
+-	snd_soc_component_update_bits(component, AIC32X4_IFACE3,
+-				AIC32X4_BDIVCLK_MASK,
+-				AIC32X4_DACMOD2BCLK << AIC32X4_BDIVCLK_SHIFT);
+-
+ 	/* DOSR MSB & LSB values */
+ 	snd_soc_component_write(component, AIC32X4_DOSRMSB, aic32x4_divs[i].dosr >> 8);
+ 	snd_soc_component_write(component, AIC32X4_DOSRLSB, (aic32x4_divs[i].dosr & 0xff));
+@@ -777,10 +774,6 @@ static int aic32x4_setup_clocks(struct s
+ 	/* AOSR value */
+ 	snd_soc_component_write(component, AIC32X4_AOSR, aic32x4_divs[i].aosr);
+ 
+-	/* BCLK N divider */
+-	snd_soc_component_update_bits(component, AIC32X4_BCLKN,
+-				AIC32X4_BCLK_MASK, aic32x4_divs[i].blck_N);
+-
+ 	return 0;
+ }
+ 
+@@ -1003,6 +996,8 @@ static int aic32x4_component_probe(struc
+ 	struct clk_bulk_data clocks[] = {
+ 		{ .id = "codec_clkin" },
+ 		{ .id = "pll" },
++		{ .id = "bdiv" },
++		{ .id = "mdac" },
+ 	};
+ 
+ 	ret = devm_clk_bulk_get(component->dev, ARRAY_SIZE(clocks), clocks);
+@@ -1020,6 +1015,7 @@ static int aic32x4_component_probe(struc
+ 		aic32x4_setup_gpios(component);
+ 
+ 	clk_set_parent(clocks[0].clk, clocks[1].clk);
++	clk_set_parent(clocks[2].clk, clocks[3].clk);
+ 
+ 	/* Power platform configuration */
+ 	if (aic32x4->power_cfg & AIC32X4_PWR_MICBIAS_2075_LDOIN) {