The patch

ASoC: uniphier: add syscon property to binding document

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 8bde8fd64d1b8f8bc1577e28ff412553597b6adb Mon Sep 17 00:00:00 2001

From: Katsuhiro Suzuki suzuki.katsuhiro@socionext.com Date: Fri, 16 Mar 2018 16:08:12 +0900 Subject: [PATCH] ASoC: uniphier: add syscon property to binding document

This patch adds syscon property for specifying soc-glue core into DT binding documentation.

Currently, soc-glue core is used for changing the state of S/PDIF signal output pin to signal output state or Hi-Z state. If you don't need to use features on soc-glue described above you can ommit this property.

Signed-off-by: Katsuhiro Suzuki suzuki.katsuhiro@socionext.com Signed-off-by: Mark Brown broonie@kernel.org --- Documentation/devicetree/bindings/sound/uniphier,aio.txt | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/uniphier,aio.txt b/Documentation/devicetree/bindings/sound/uniphier,aio.txt index 65d71cf6ef0f..4ce68ed6f2f2 100644 --- a/Documentation/devicetree/bindings/sound/uniphier,aio.txt +++ b/Documentation/devicetree/bindings/sound/uniphier,aio.txt @@ -22,6 +22,12 @@ Required properties: entry in reset-names. - #sound-dai-cells: should be 1.

+Optional properties: +- socionext,syscon: a phandle, should contain soc-glue. + The soc-glue is used for changing mode of S/PDIF signal pin + to Output from Hi-Z. This property is optional if you use + I2S signal pins only. + Example: audio { compatible = "socionext,uniphier-ld20-aio"; @@ -34,4 +40,6 @@ Example: reset-names = "aio"; resets = <&sys_rst 40>; #sound-dai-cells = <1>; + + socionext,syscon = <&sg>; };

The patch

ASoC: uniphier: add syscon property for UniPhier sound system

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 7c3c20f2bec1e8bdaadd551a4b75f1834a7cb974 Mon Sep 17 00:00:00 2001

From: Katsuhiro Suzuki suzuki.katsuhiro@socionext.com Date: Fri, 16 Mar 2018 16:08:13 +0900 Subject: [PATCH] ASoC: uniphier: add syscon property for UniPhier sound system

This patch adds syscon property for specifying soc-glue core.

Currently, soc-glue core is used for changing the state of S/PDIF signal output pin to signal output state or Hi-Z state. After resetting of SoC Hi-Z state is selected. This driver set to signal output state when syscon property is available.

Signed-off-by: Katsuhiro Suzuki suzuki.katsuhiro@socionext.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/uniphier/aio-core.c | 21 +++++++++++++++++++++ sound/soc/uniphier/aio-cpu.c | 11 +++++++++++ sound/soc/uniphier/aio-reg.h | 3 +++ sound/soc/uniphier/aio.h | 2 ++ 4 files changed, 37 insertions(+)

diff --git a/sound/soc/uniphier/aio-core.c b/sound/soc/uniphier/aio-core.c index 1711361fc0c2..6d50042a4571 100644 --- a/sound/soc/uniphier/aio-core.c +++ b/sound/soc/uniphier/aio-core.c @@ -83,6 +83,27 @@ u64 aio_rb_space_to_end(struct uniphier_aio_sub *sub) return rb_space_to_end(sub->wr_offs, sub->rd_offs, sub->compr_bytes); }

+/** + * aio_iecout_set_enable - setup IEC output via SoC glue + * @chip: the AIO chip pointer + * @enable: false to stop the output, true to start + * + * Set enabled or disabled S/PDIF signal output to out of SoC via AOnIEC pins. + * This function need to call at driver startup. + * + * The regmap of SoC glue is specified by 'socionext,syscon' optional property + * of DT. This function has no effect if no property. + */ +void aio_iecout_set_enable(struct uniphier_aio_chip *chip, bool enable) +{ + struct regmap *r = chip->regmap_sg; + + if (!r) + return; + + regmap_write(r, SG_AOUTEN, (enable) ? ~0 : 0); +} + /** * aio_chip_set_pll - set frequency to audio PLL * @chip : the AIO chip pointer diff --git a/sound/soc/uniphier/aio-cpu.c b/sound/soc/uniphier/aio-cpu.c index 7cf2316c69a2..1e5eb8e6f8c7 100644 --- a/sound/soc/uniphier/aio-cpu.c +++ b/sound/soc/uniphier/aio-cpu.c @@ -20,6 +20,7 @@ #include <linux/clk.h> #include <linux/errno.h> #include <linux/kernel.h> +#include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> @@ -387,6 +388,7 @@ int uniphier_aio_dai_probe(struct snd_soc_dai *dai) sub->spec = spec; }

+ aio_iecout_set_enable(aio->chip, true); aio_chip_init(aio->chip); aio->chip->active = 1;

@@ -431,6 +433,7 @@ int uniphier_aio_dai_resume(struct snd_soc_dai *dai) if (ret) goto err_out_clock;

+ aio_iecout_set_enable(aio->chip, true); aio_chip_init(aio->chip);

for (i = 0; i < ARRAY_SIZE(aio->sub); i++) { @@ -477,6 +480,14 @@ int uniphier_aio_probe(struct platform_device *pdev) if (!chip->chip_spec) return -EINVAL;

+ chip->regmap_sg = syscon_regmap_lookup_by_phandle(dev->of_node, + "socionext,syscon"); + if (IS_ERR(chip->regmap_sg)) { + if (PTR_ERR(chip->regmap_sg) == -EPROBE_DEFER) + return -EPROBE_DEFER; + chip->regmap_sg = NULL; + } + chip->clk = devm_clk_get(dev, "aio"); if (IS_ERR(chip->clk)) return PTR_ERR(chip->clk); diff --git a/sound/soc/uniphier/aio-reg.h b/sound/soc/uniphier/aio-reg.h index eaf2c65acf14..136d3563cf44 100644 --- a/sound/soc/uniphier/aio-reg.h +++ b/sound/soc/uniphier/aio-reg.h @@ -23,6 +23,9 @@

#include <linux/bitops.h>

+/* soc-glue */ +#define SG_AOUTEN 0x1c04 + /* SW view */ #define A2CHNMAPCTR0(n) (0x00000 + 0x40 * (n)) #define A2RBNMAPCTR0(n) (0x01000 + 0x40 * (n)) diff --git a/sound/soc/uniphier/aio.h b/sound/soc/uniphier/aio.h index 793334675cb3..8cab4a553a97 100644 --- a/sound/soc/uniphier/aio.h +++ b/sound/soc/uniphier/aio.h @@ -296,6 +296,7 @@ struct uniphier_aio_chip { struct clk *clk; struct reset_control *rst; struct regmap *regmap; + struct regmap *regmap_sg; int active; };

@@ -323,6 +324,7 @@ u64 aio_rbt_cnt_to_end(struct uniphier_aio_sub *sub); u64 aio_rb_space(struct uniphier_aio_sub *sub); u64 aio_rb_space_to_end(struct uniphier_aio_sub *sub);

+void aio_iecout_set_enable(struct uniphier_aio_chip *chip, bool enable); int aio_chip_set_pll(struct uniphier_aio_chip *chip, int pll_id, unsigned int freq); void aio_chip_init(struct uniphier_aio_chip *chip);