(unknown),

(unknown),

[Sangbeom Kim]

[PATCH 0/2] Add WM8994 PCM Machine driver for Exynos4

Hi,

This is patchset for WM8994 pcm machine driver that supports
PCM audio on SMDKV310, SMDKC210 and test is done.

Based on these patches WM8994 pcm machine driver supports followings:
 o Playback supports 8kHz sampling rates.
 o Capture supports 8kHz sampling rates.

This patchset contains followings 

 o To Kukjin Kim and Ben Dooks,
[PATCH 1/2] ARM: EXYNOS4: Add PCM audio support for WM8994

 o To Jassi Brar, Mark Brown and Liam Girdwood,
[PATCH 2/2] ASoC: SAMSUNG: Add WM8580 PCM Machine driver 

Best Regards,
SB Kim (Sangbeom Kim)

[PATCH 2/2] ASoC: SAMSUNG: Add WM8994 PCM Machine driver

[Sangbeom Kim]

This patch add WM8994 PCM machine driver to support PCM audio
on SMDKV310, SMDKC210 boards.
Playback and Capture supports 8kHz sampling rates.
and It is tested on SMDKV310, SMDKC210.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
---
 sound/soc/samsung/Kconfig          |    8 ++
 sound/soc/samsung/Makefile         |    2 +
 sound/soc/samsung/smdk_wm8994pcm.c |  175 ++++++++++++++++++++++++++++++++++++
 3 files changed, 185 insertions(+), 0 deletions(-)
 create mode 100644 sound/soc/samsung/smdk_wm8994pcm.c

diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index b8c7a2e..db2bc49 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -170,3 +170,11 @@ config SND_SOC_SMDK_WM8580_PCM
 	select SND_SAMSUNG_PCM
 	help
 	  Say Y if you want to add support for SoC audio on the SMDK.
+
+config SND_SOC_SMDK_WM8994_PCM
+	tristate "SoC PCM Audio support for WM8994 on SMDK"
+	depends on SND_SOC_SAMSUNG && (MACH_SMDKC210 || MACH_SMDKV310)
+	select SND_SOC_WM8994
+	select SND_SAMSUNG_PCM
+	help
+	  Say Y if you want to add support for SoC audio on the SMDK.
diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile
index 6c598fc..4a3a428 100644
--- a/sound/soc/samsung/Makefile
+++ b/sound/soc/samsung/Makefile
@@ -35,6 +35,7 @@ snd-soc-s3c64xx-smartq-wm8987-objs := smartq_wm8987.o
 snd-soc-goni-wm8994-objs := goni_wm8994.o
 snd-soc-smdk-spdif-objs := smdk_spdif.o
 snd-soc-smdk-wm8580pcm-objs := smdk_wm8580pcm.o
+snd-soc-smdk-wm8994pcm-objs := smdk_wm8994pcm.o
 
 obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
 obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -53,3 +54,4 @@ obj-$(CONFIG_SND_SOC_SMARTQ) += snd-soc-s3c64xx-smartq-wm8987.o
 obj-$(CONFIG_SND_SOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o
 obj-$(CONFIG_SND_SOC_GONI_AQUILA_WM8994) += snd-soc-goni-wm8994.o
 obj-$(CONFIG_SND_SOC_SMDK_WM8580_PCM) += snd-soc-smdk-wm8580pcm.o
+obj-$(CONFIG_SND_SOC_SMDK_WM8994_PCM) += snd-soc-smdk-wm8994pcm.o
diff --git a/sound/soc/samsung/smdk_wm8994pcm.c b/sound/soc/samsung/smdk_wm8994pcm.c
new file mode 100644
index 0000000..756c228
--- /dev/null
+++ b/sound/soc/samsung/smdk_wm8994pcm.c
@@ -0,0 +1,175 @@
+/*
+ *  sound/soc/samsung/smdk_wm8994pcm.c
+ *
+ *  Copyright (c) 2011 Samsung Electronics Co. Ltd
+ *
+ *  This program is free software; you can redistribute  it and/or  modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+
+#include "../codecs/wm8994.h"
+#include "dma.h"
+#include "pcm.h"
+
+/*
+ * Board Settings:
+ *  o '1' means 'ON'
+ *  o '0' means 'OFF'
+ *  o 'X' means 'Don't care'
+ *
+ * SMDKC210, SMDKV310: CFG3- 1001, CFG5-1000, CFG7-111111
+ */
+
+/*
+ * Configure audio route as :-
+ * $ amixer sset 'DAC1' on,on
+ * $ amixer sset 'Right Headphone Mux' 'DAC'
+ * $ amixer sset 'Left Headphone Mux' 'DAC'
+ * $ amixer sset 'DAC1R Mixer AIF1.1' on
+ * $ amixer sset 'DAC1L Mixer AIF1.1' on
+ * $ amixer sset 'IN2L' on
+ * $ amixer sset 'IN2L PGA IN2LN' on
+ * $ amixer sset 'MIXINL IN2L' on
+ * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
+ * $ amixer sset 'IN2R' on
+ * $ amixer sset 'IN2R PGA IN2RN' on
+ * $ amixer sset 'MIXINR IN2R' on
+ * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
+ */
+
+/* SMDK has a 16.9344MHZ crystal attached to WM8994 */
+#define SMDK_WM8994_FREQ 16934400
+
+static int smdk_wm8994_pcm_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	unsigned long mclk_freq;
+	int rfs, ret;
+
+	switch(params_rate(params)) {
+	case 8000:
+		rfs = 512;
+		break;
+	default:
+		printk(KERN_ERR "%s:%d Sampling Rate %u not supported!\n",
+		__func__, __LINE__, params_rate(params));
+		return -EINVAL;
+	}
+
+	mclk_freq = params_rate(params) * rfs;
+
+	/* Set the codec DAI configuration */
+	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B
+				| SND_SOC_DAIFMT_IB_NF
+				| SND_SOC_DAIFMT_CBS_CFS);
+	if (ret < 0)
+		return ret;
+
+	/* Set the cpu DAI configuration */
+	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_B
+				| SND_SOC_DAIFMT_IB_NF
+				| SND_SOC_DAIFMT_CBS_CFS);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
+					mclk_freq, SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
+					SMDK_WM8994_FREQ, mclk_freq);
+	if (ret < 0)
+		return ret;
+
+	/* Set PCM source clock on CPU */
+	ret = snd_soc_dai_set_sysclk(cpu_dai, S3C_PCM_CLKSRC_MUX,
+					mclk_freq, SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	/* Set SCLK_DIV for making bclk */
+	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_PCM_SCLK_PER_FS, rfs);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static struct snd_soc_ops smdk_wm8994_pcm_ops = {
+	.hw_params = smdk_wm8994_pcm_hw_params,
+};
+
+static struct snd_soc_dai_link smdk_dai[] = {
+	{
+		.name = "WM8994 PAIF PCM",
+		.stream_name = "Primary PCM",
+		.cpu_dai_name = "samsung-pcm.0",
+		.codec_dai_name = "wm8994-aif1",
+		.platform_name = "samsung-audio",
+		.codec_name = "wm8994-codec",
+		.ops = &smdk_wm8994_pcm_ops,
+	},
+};
+
+static struct snd_soc_card smdk_pcm = {
+	.name = "SMDK-PCM",
+	.dai_link = smdk_dai,
+	.num_links = 1,
+};
+
+static int __devinit snd_smdk_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+
+	smdk_pcm.dev = &pdev->dev;
+	ret = snd_soc_register_card(&smdk_pcm);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int __devexit snd_smdk_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_card(&smdk_pcm);
+	platform_set_drvdata(pdev, NULL);
+	return 0;
+}
+
+static struct platform_driver snd_smdk_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "samsung-smdk-pcm",
+	},
+	.probe = snd_smdk_probe,
+	.remove = __devexit_p(snd_smdk_remove),
+};
+
+static int __init smdk_audio_init(void)
+{
+	return platform_driver_register(&snd_smdk_driver);
+}
+
+module_init(smdk_audio_init);
+
+static void __exit smdk_audio_exit(void)
+{
+	platform_driver_unregister(&snd_smdk_driver);
+}
+
+module_exit(smdk_audio_exit);
+
+MODULE_AUTHOR("Sangbeom Kim, <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("ALSA SoC SMDK WM8994 for PCM");
+MODULE_LICENSE("GPL");
-- 
1.7.1

[PATCH 1/2] ARM: EXYNOS4: Add PCM audio support for WM8994

[Sangbeom Kim]

This patch add pcm audio configuration for SMDKV310 and SMDKC210.
Platform device and pcm clock initialization code is added.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
---
 arch/arm/mach-exynos4/clock.c                   |  169 ++++++++++++++++++++++-
 arch/arm/mach-exynos4/cpu.c                     |    5 +
 arch/arm/mach-exynos4/dev-audio.c               |    5 +
 arch/arm/mach-exynos4/include/mach/map.h        |    3 +
 arch/arm/mach-exynos4/include/mach/regs-audss.h |   25 ++++
 arch/arm/mach-exynos4/mach-smdkc210.c           |    7 +
 arch/arm/mach-exynos4/mach-smdkv310.c           |    7 +
 arch/arm/plat-samsung/include/plat/audio.h      |    2 +
 8 files changed, 221 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/mach-exynos4/include/mach/regs-audss.h

diff --git a/arch/arm/mach-exynos4/clock.c b/arch/arm/mach-exynos4/clock.c
index 871f9d5..77cd81f 100644
--- a/arch/arm/mach-exynos4/clock.c
+++ b/arch/arm/mach-exynos4/clock.c
@@ -23,6 +23,7 @@
 
 #include <mach/map.h>
 #include <mach/regs-clock.h>
+#include <mach/regs-audss.h>
 #include <mach/sysmmu.h>
 
 static struct clk clk_sclk_hdmi27m = {
@@ -47,6 +48,31 @@ static struct clk clk_sclk_usbphy1 = {
 	.id		= -1,
 };
 
+static struct clk clk_sclk_xxti = {
+	.name		= "sclk_usbphy1",
+	.id		= -1,
+};
+
+static struct clk clk_sclk_xusbxti = {
+	.name		= "sclk_usbphy1",
+	.id		= -1,
+};
+
+static struct clk clk_audiocdclk0 = {
+	.name		= "audiocdclk",
+	.id		= 0,
+};
+
+static struct clk clk_audiocdclk1 = {
+	.name		= "audiocdclk",
+	.id		= 1,
+};
+
+static struct clk clk_audiocdclk2 = {
+	.name		= "audiocdclk",
+	.id		= 2,
+};
+
 static int exynos4_clksrc_mask_top_ctrl(struct clk *clk, int enable)
 {
 	return s5p_gatectrl(S5P_CLKSRC_MASK_TOP, clk, enable);
@@ -127,6 +153,16 @@ static int exynos4_clk_ip_perir_ctrl(struct clk *clk, int enable)
 	return s5p_gatectrl(S5P_CLKGATE_IP_PERIR, clk, enable);
 }
 
+static int exynos4_clksrc_mask_maudio_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLKSRC_MASK_MAUDIO, clk, enable);
+}
+
+static int exynos4_clk_audss_ctrl(struct clk *clk, int enable)
+{
+        return s5p_gatectrl(S5P_CLKGATE_AUDSS, clk, enable);
+}
+
 /* Core list of CMU_CPU side */
 
 static struct clksrc_clk clk_mout_apll = {
@@ -561,6 +597,21 @@ static struct clk init_clocks_off[] = {
 		.enable		= exynos4_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 27),
 	}, {
+		.name		= "pcm",
+		.id		= 0,
+		.enable		= exynos4_clk_audss_ctrl,
+		.ctrlbit	= S5P_AUDSS_CLKGATE_PCMSPECIAL,
+	}, {
+		.name		= "pcm",
+		.id		= 1,
+		.enable		= exynos4_clk_ip_peril_ctrl,
+		.ctrlbit	= (1 << 22),
+	}, {
+		.name		= "pcm",
+		.id		= 2,
+		.enable		= exynos4_clk_ip_peril_ctrl,
+		.ctrlbit	= (1 << 23),
+        }, {
 		.name		= "fimg2d",
 		.id		= -1,
 		.enable		= exynos4_clk_ip_image_ctrl,
@@ -686,6 +737,93 @@ static struct clk init_clocks_off[] = {
 	}
 };
 
+static struct clk *clkset_sclk_audio0_list[] = {
+	[0] = &clk_audiocdclk0,
+	[1] = NULL,
+	[2] = &clk_sclk_hdmi27m,
+	[3] = &clk_sclk_usbphy0,
+	[4] = &clk_sclk_xxti,
+	[5] = &clk_sclk_xusbxti,
+	[6] = &clk_mout_mpll.clk,
+	[7] = &clk_mout_epll.clk,
+	[8] = &clk_sclk_vpll.clk,
+};
+
+static struct clksrc_sources clkset_sclk_audio0 = {
+	.sources	= clkset_sclk_audio0_list,
+	.nr_sources	= ARRAY_SIZE(clkset_sclk_audio0_list),
+};
+
+static struct clksrc_clk clk_sclk_audio0 = {
+	.clk	= {
+		.name		= "audio-bus",
+		.id		= 0,
+		.enable		= exynos4_clksrc_mask_maudio_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.sources = &clkset_sclk_audio0,
+	.reg_src = { .reg = S5P_CLKSRC_MAUDIO, .shift = 0, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_MAUDIO, .shift = 0, .size = 4 },
+};
+
+static struct clk *clkset_sclk_audio1_list[] = {
+	[0] = &clk_audiocdclk1,
+	[1] = NULL,
+	[2] = &clk_sclk_hdmi27m,
+	[3] = &clk_sclk_usbphy0,
+	[4] = &clk_sclk_xxti,
+	[5] = &clk_sclk_xusbxti,
+	[6] = &clk_mout_mpll.clk,
+	[7] = &clk_mout_epll.clk,
+	[8] = &clk_sclk_vpll.clk,
+};
+
+static struct clksrc_sources clkset_sclk_audio1 = {
+	.sources	= clkset_sclk_audio1_list,
+	.nr_sources	= ARRAY_SIZE(clkset_sclk_audio1_list),
+};
+
+static struct clksrc_clk clk_sclk_audio1 = {
+	.clk	= {
+		.name		= "audio-bus",
+		.id		= 1,
+		.enable		= exynos4_clksrc_mask_peril1_ctrl,
+		.ctrlbit	= (1 << 0),
+        },
+	.sources = &clkset_sclk_audio1,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 0, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL4, .shift = 4, .size = 8 },
+};
+
+static struct clk *clkset_sclk_audio2_list[] = {
+	[0] = &clk_audiocdclk2,
+	[1] = NULL,
+	[2] = &clk_sclk_hdmi27m,
+	[3] = &clk_sclk_usbphy0,
+	[4] = &clk_sclk_xxti,
+	[5] = &clk_sclk_xusbxti,
+	[6] = &clk_mout_mpll.clk,
+	[7] = &clk_mout_epll.clk,
+	[8] = &clk_sclk_vpll.clk,
+};
+
+static struct clksrc_sources clkset_sclk_audio2 = {
+	.sources        = clkset_sclk_audio2_list,
+	.nr_sources     = ARRAY_SIZE(clkset_sclk_audio2_list),
+};
+
+static struct clksrc_clk clk_sclk_audio2 = {
+	.clk	= {
+		.name		= "audio-bus",
+		.id		= 2,
+		.enable		= exynos4_clksrc_mask_peril1_ctrl,
+		.ctrlbit	= (1 << 4),
+	},
+	.sources = &clkset_sclk_audio2,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 4, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL4, .shift = 16, .size = 4 },
+};
+
 static struct clk init_clocks[] = {
 	{
 		.name		= "uart",
@@ -1079,7 +1217,28 @@ static struct clksrc_clk clksrcs[] = {
 			.ctrlbit	= (1 << 16),
 		},
 		.reg_div = { .reg = S5P_CLKDIV_FSYS3, .shift = 8, .size = 8 },
-	}
+	}, {
+		.clk		= {
+			.name		= "sclk_pcm",
+			.id		= 0,
+			.parent		= &clk_sclk_audio0.clk,
+                },
+                .reg_div = { .reg = S5P_CLKDIV_MAUDIO, .shift = 4, .size = 8 },
+        }, {
+                .clk            = {
+                        .name           = "sclk_pcm",
+                        .id             = 1,
+                        .parent         = &clk_sclk_audio1.clk,
+                },
+                .reg_div = { .reg = S5P_CLKDIV_PERIL4, .shift = 4, .size = 8 },
+        }, {
+                .clk            = {
+                        .name           = "sclk_pcm",
+                        .id             = 2,
+                        .parent         = &clk_sclk_audio2.clk,
+                },
+                .reg_div = { .reg = S5P_CLKDIV_PERIL4, .shift = 20, .size = 8 },
+        },
 };
 
 /* Clock initialization code */
@@ -1112,6 +1271,9 @@ static struct clksrc_clk *sysclks[] = {
 	&clk_dout_mmc2,
 	&clk_dout_mmc3,
 	&clk_dout_mmc4,
+	&clk_sclk_audio0,
+	&clk_sclk_audio1,
+	&clk_sclk_audio2,
 };
 
 static int xtal_rate;
@@ -1191,10 +1353,13 @@ void __init_or_cpufreq exynos4_setup_clocks(void)
 
 	for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
 		s3c_set_clksrc(&clksrcs[ptr], true);
+
+	clk_audiocdclk0.rate = PCM_EXTCLK0;
+	clk_set_parent(&clk_sclk_audio0.clk, &clk_audiocdclk0);
 }
 
 static struct clk *clks[] __initdata = {
-	/* Nothing here yet */
+	&clk_audiocdclk0,
 };
 
 void __init exynos4_register_clocks(void)
diff --git a/arch/arm/mach-exynos4/cpu.c b/arch/arm/mach-exynos4/cpu.c
index 7930113..620b41f 100644
--- a/arch/arm/mach-exynos4/cpu.c
+++ b/arch/arm/mach-exynos4/cpu.c
@@ -97,6 +97,11 @@ static struct map_desc exynos4_iodesc[] __initdata = {
 		.pfn		= __phys_to_pfn(EXYNOS4_PA_SROMC),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S5P_VA_AUDSS,
+		.pfn		= __phys_to_pfn(EXYNOS4_PA_AUDSS),
+		.length		= SZ_1K,
+		.type		= MT_DEVICE,
 	},
 };
 
diff --git a/arch/arm/mach-exynos4/dev-audio.c b/arch/arm/mach-exynos4/dev-audio.c
index 1eed5f9..383a4aa 100644
--- a/arch/arm/mach-exynos4/dev-audio.c
+++ b/arch/arm/mach-exynos4/dev-audio.c
@@ -187,6 +187,11 @@ static int exynos4_pcm_cfg_gpio(struct platform_device *pdev)
 
 static struct s3c_audio_pdata s3c_pcm_pdata = {
 	.cfg_gpio = exynos4_pcm_cfg_gpio,
+	.type = {
+		.i2s = {
+			.quirks = QUIRK_NO_DIV,
+		},
+	},
 };
 
 static struct resource exynos4_pcm0_resource[] = {
diff --git a/arch/arm/mach-exynos4/include/mach/map.h b/arch/arm/mach-exynos4/include/mach/map.h
index 6330b73..063854e 100644
--- a/arch/arm/mach-exynos4/include/mach/map.h
+++ b/arch/arm/mach-exynos4/include/mach/map.h
@@ -30,6 +30,8 @@
 #define EXYNOS4_PA_FIMC2		0x11820000
 #define EXYNOS4_PA_FIMC3		0x11830000
 
+#define EXYNOS4_PA_AUDSS		0x03810000
+
 #define EXYNOS4_PA_I2S0			0x03830000
 #define EXYNOS4_PA_I2S1			0xE3100000
 #define EXYNOS4_PA_I2S2			0xE2A00000
@@ -143,6 +145,7 @@
 #define S5P_PA_SROMC			EXYNOS4_PA_SROMC
 #define S5P_PA_SYSCON			EXYNOS4_PA_SYSCON
 #define S5P_PA_TIMER			EXYNOS4_PA_TIMER
+#define S5P_PA_AUDSS			EXYNOS4_PA_AUDSS
 
 #define SAMSUNG_PA_KEYPAD		EXYNOS4_PA_KEYPAD
 
diff --git a/arch/arm/mach-exynos4/include/mach/regs-audss.h b/arch/arm/mach-exynos4/include/mach/regs-audss.h
new file mode 100644
index 0000000..23c1d3a
--- /dev/null
+++ b/arch/arm/mach-exynos4/include/mach/regs-audss.h
@@ -0,0 +1,25 @@
+/* arch/arm/mach-exynos4/include/mach/regs-audss.h
+ *
+ * Copyright (c) 2011 Samsung Electronics
+ *		http://www.samsung.com
+ *
+ * Exynos4 Audio SubSystem clock register definitions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __PLAT_REGS_AUDSS_H
+#define __PLAT_REGS_AUDSS_H __FILE__
+
+#define S5P_AUDSSREG(x)		(S5P_VA_AUDSS + (x))
+
+#define S5P_CLKGATE_AUDSS	S5P_AUDSSREG(0x8)
+
+#define PCM_EXTCLK0		16934400	
+
+/* IP Clock Gate 0 Registers */
+#define S5P_AUDSS_CLKGATE_PCMSPECIAL	(1<<5)
+
+#endif /* _PLAT_REGS_AUDSS_H */
diff --git a/arch/arm/mach-exynos4/mach-smdkc210.c b/arch/arm/mach-exynos4/mach-smdkc210.c
index e645f7a..ac53e49 100644
--- a/arch/arm/mach-exynos4/mach-smdkc210.c
+++ b/arch/arm/mach-exynos4/mach-smdkc210.c
@@ -142,6 +142,11 @@ static struct platform_device smdkc210_smsc911x = {
 	},
 };
 
+static struct platform_device smdkc210_pcm_device = {
+	.name		= "samsung-smdk-pcm",
+	.id		= -1,
+};
+
 static struct i2c_board_info i2c_devs1[] __initdata = {
 	{I2C_BOARD_INFO("wm8994", 0x1a),},
 };
@@ -156,6 +161,7 @@ static struct platform_device *smdkc210_devices[] __initdata = {
 	&s3c_device_wdt,
 	&exynos4_device_ac97,
 	&exynos4_device_i2s0,
+	&exynos4_device_pcm0,
 	&exynos4_device_pd[PD_MFC],
 	&exynos4_device_pd[PD_G3D],
 	&exynos4_device_pd[PD_LCD0],
@@ -166,6 +172,7 @@ static struct platform_device *smdkc210_devices[] __initdata = {
 	&exynos4_device_sysmmu,
 	&samsung_asoc_dma,
 	&smdkc210_smsc911x,
+	&smdkc210_pcm_device,
 };
 
 static void __init smdkc210_smsc911x_init(void)
diff --git a/arch/arm/mach-exynos4/mach-smdkv310.c b/arch/arm/mach-exynos4/mach-smdkv310.c
index 1526764..7e3ee6c 100644
--- a/arch/arm/mach-exynos4/mach-smdkv310.c
+++ b/arch/arm/mach-exynos4/mach-smdkv310.c
@@ -163,6 +163,11 @@ static struct samsung_keypad_platdata smdkv310_keypad_data __initdata = {
 	.cols		= 8,
 };
 
+static struct platform_device smdkv310_pcm_device = {
+	.name		= "samsung-smdk-pcm",
+	.id		= -1,
+};
+
 static struct i2c_board_info i2c_devs1[] __initdata = {
 	{I2C_BOARD_INFO("wm8994", 0x1a),},
 };
@@ -186,8 +191,10 @@ static struct platform_device *smdkv310_devices[] __initdata = {
 	&exynos4_device_pd[PD_TV],
 	&exynos4_device_pd[PD_GPS],
 	&exynos4_device_sysmmu,
+	&exynos4_device_pcm0,
 	&samsung_asoc_dma,
 	&smdkv310_smsc911x,
+	&smdkv310_pcm_device,
 };
 
 static void __init smdkv310_smsc911x_init(void)
diff --git a/arch/arm/plat-samsung/include/plat/audio.h b/arch/arm/plat-samsung/include/plat/audio.h
index a0826ed..1310547 100644
--- a/arch/arm/plat-samsung/include/plat/audio.h
+++ b/arch/arm/plat-samsung/include/plat/audio.h
@@ -36,6 +36,8 @@ struct samsung_i2s {
  */
 #define QUIRK_NO_MUXPSR		(1 << 2)
 #define QUIRK_NEED_RSTCLR	(1 << 3)
+/* If the PCM block has no internal prescalar or MUX */
+#define QUIRK_NO_DIV		(1 << 4)
 	/* Quirks of the I2S controller */
 	u32 quirks;
 
-- 
1.7.1

Re: [PATCH 1/2] ARM: EXYNOS4: Add PCM audio support for WM8994

[Jassi Brar]

On Mon, Apr 25, 2011 at 12:24 PM, Sangbeom Kim <sbkim73@samsung.com> wrote:

> --- a/arch/arm/plat-samsung/include/plat/audio.h
> +++ b/arch/arm/plat-samsung/include/plat/audio.h
> @@ -36,6 +36,8 @@ struct samsung_i2s {
>  */
>  #define QUIRK_NO_MUXPSR                (1 << 2)
>  #define QUIRK_NEED_RSTCLR      (1 << 3)
> +/* If the PCM block has no internal prescalar or MUX */
> +#define QUIRK_NO_DIV           (1 << 4)
>        /* Quirks of the I2S controller */
>        u32 quirks;

I think the I2S and PCM configuration don't share enough.
So maybe a separate 'struct samsung_pcm' is warranted here.
Also, if new SoC PCM blocks are going to _not_ have the divider
may be it's a good idea to make that as 'norm' and having divider
as a 'quirk' ?  That way, new code wouldn't have to bother adding
the quirk every time.

-j

RE: [alsa-devel] [PATCH 1/2] ARM: EXYNOS4: Add PCM audio support for WM8994

[Sangbeom Kim]

Hi Jassi,

Thanks for your advisor.
Currently, Only Exynos4210 pcm block is different.
And There is no rule to design in Future AP.
I will discuss with ap design team and try to
change pcm block like a previous one for the future AP.
Because, I think that it is more desirable to include
SCLK divider in the pcm block like old Samsung APs.
So, In the exynos4 case, I want to handle it by quirk.
What do you think about my opinion?

SB Kim


On Tuesday, April 26, 2011 1:10 AM, Jassi Brar <jassisinghbrar@gmail.com> wrote:
> To: Sangbeom Kim
> Cc: kgene.kim@samsung.com; alsa-devel@alsa-project.org; linux-samsung-
> soc@vger.kernel.org; broonie@opensource.wolfsonmicro.com;
> lrg@slimlogic.co.uk
> Subject: Re: [alsa-devel] [PATCH 1/2] ARM: EXYNOS4: Add PCM audio support
> for WM8994
> 
> On Mon, Apr 25, 2011 at 12:24 PM, Sangbeom Kim <sbkim73@samsung.com> wrote:
> 
> > --- a/arch/arm/plat-samsung/include/plat/audio.h
> > +++ b/arch/arm/plat-samsung/include/plat/audio.h
> > @@ -36,6 +36,8 @@ struct samsung_i2s {
> >  */
> >  #define QUIRK_NO_MUXPSR                (1 << 2)
> >  #define QUIRK_NEED_RSTCLR      (1 << 3)
> > +/* If the PCM block has no internal prescalar or MUX */
> > +#define QUIRK_NO_DIV           (1 << 4)
> >        /* Quirks of the I2S controller */
> >        u32 quirks;
> 
> I think the I2S and PCM configuration don't share enough.
> So maybe a separate 'struct samsung_pcm' is warranted here.
> Also, if new SoC PCM blocks are going to _not_ have the divider
> may be it's a good idea to make that as 'norm' and having divider
> as a 'quirk' ?  That way, new code wouldn't have to bother adding
> the quirk every time.
> 
> -j
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Re: [alsa-devel] [PATCH 1/2] ARM: EXYNOS4: Add PCM audio support for WM8994

[Jassi Brar]

On Tue, Apr 26, 2011 at 7:36 AM, Sangbeom Kim <sbkim73@samsung.com> wrote:
> Hi Jassi,
>
> Thanks for your advisor.
> Currently, Only Exynos4210 pcm block is different.
> And There is no rule to design in Future AP.
> I will discuss with ap design team and try to
> change pcm block like a previous one for the future AP.
> Because, I think that it is more desirable to include
> SCLK divider in the pcm block like old Samsung APs.
> So, In the exynos4 case, I want to handle it by quirk.
> What do you think about my opinion?

Ok. If the block is not going to change for sure, maybe
handling by quirk is ok.

Re: [alsa-devel] (no subject)

[Liam Girdwood]

On Mon, 2011-04-25 at 15:54 +0900, Sangbeom Kim wrote:
> [PATCH 0/2] Add WM8994 PCM Machine driver for Exynos4
> 
> Hi,
> 
> This is patchset for WM8994 pcm machine driver that supports
> PCM audio on SMDKV310, SMDKC210 and test is done.
> 
> Based on these patches WM8994 pcm machine driver supports followings:
>  o Playback supports 8kHz sampling rates.
>  o Capture supports 8kHz sampling rates.
> 
> This patchset contains followings 
> 
>  o To Kukjin Kim and Ben Dooks,
> [PATCH 1/2] ARM: EXYNOS4: Add PCM audio support for WM8994
> 
>  o To Jassi Brar, Mark Brown and Liam Girdwood,
> [PATCH 2/2] ASoC: SAMSUNG: Add WM8580 PCM Machine driver 
> 
> Best Regards,
> SB Kim (Sangbeom Kim)
> 

Both

Acked-by: Liam Girdwood <lrg@ti.com>