[oe-commits] org.oe.dev linux-smdk2443_2.6.20+git.bb : add a kernel for the smdk2443 board from
xora commit
openembedded-commits at lists.openembedded.org
Tue Apr 3 07:57:26 UTC 2007
linux-smdk2443_2.6.20+git.bb : add a kernel for the smdk2443 board from
samsung.
Author: xora at openembedded.org
Branch: org.openembedded.dev
Revision: 71681d3fff1dad632e82cdd62eb922aef485711f
ViewMTN: http://monotone.openembedded.org/revision.psp?id=71681d3fff1dad632e82cdd62eb922aef485711f
Files:
1
packages/linux/linux-smdk2443
packages/linux/linux-smdk2443/0020-Add-ASoC-S3C24xx-platform-support.patch
packages/linux/linux-smdk2443/0021-Add-Neo1973-ASoC-support.patch
packages/linux/linux-smdk2443/0022-Add-initial-ASoC-SMDK2440-support.patch
packages/linux/linux-smdk2443/0023-Add-ASoC-SMDK2440-support-for-WM8956-codec.patch
packages/linux/linux-smdk2443/0033-arch-hardware.h-is-no-longer-allowed-to-be-directly.patch
packages/linux/linux-smdk2443/0034-Export-ac97_dai.patch
packages/linux/linux-smdk2443/0035-Fix-power-and-PLL.patch
packages/linux/linux-smdk2443/0036-Move-s3c24xx_i2s_dai-and-add-dma_size.patch
packages/linux/linux-smdk2443/0037-Use-dma_size-parameter-and-fix-buffdone-oops.patch
packages/linux/linux-smdk2443/0038-Add-smdk2443-s3c2443-ac97-and-wm9710-support.patch
packages/linux/linux-smdk2443/asoc-mainline.patch
packages/linux/linux-smdk2443/defconfig-smdk2443
packages/linux/linux-smdk2443_2.6.20+git.bb
Diffs:
#
# mt diff -r50afe3723699241e9643b491fe79ee9f6dfabe2f -r71681d3fff1dad632e82cdd62eb922aef485711f
#
#
#
# add_dir "packages/linux/linux-smdk2443"
#
# add_file "packages/linux/linux-smdk2443/0020-Add-ASoC-S3C24xx-platform-support.patch"
# content [6d6e82ae5e2783aa99cc1e9b554172458238caa5]
#
# add_file "packages/linux/linux-smdk2443/0021-Add-Neo1973-ASoC-support.patch"
# content [0672dd6e5a91dee26c1909c4d7eb7eb5343c15b1]
#
# add_file "packages/linux/linux-smdk2443/0022-Add-initial-ASoC-SMDK2440-support.patch"
# content [004387774c91b1f6411219c7f25e3fecd716edd2]
#
# add_file "packages/linux/linux-smdk2443/0023-Add-ASoC-SMDK2440-support-for-WM8956-codec.patch"
# content [a2b30fa3d20843fd093db06d57db9369ae79c010]
#
# add_file "packages/linux/linux-smdk2443/0033-arch-hardware.h-is-no-longer-allowed-to-be-directly.patch"
# content [be7970c71e30296bb6e70ee7440c7e568d1a7966]
#
# add_file "packages/linux/linux-smdk2443/0034-Export-ac97_dai.patch"
# content [a143b206f85b6de898ba79a8720846b5b83c3024]
#
# add_file "packages/linux/linux-smdk2443/0035-Fix-power-and-PLL.patch"
# content [cb123196a49cee117a1be280ea25776e0c4c8a7d]
#
# add_file "packages/linux/linux-smdk2443/0036-Move-s3c24xx_i2s_dai-and-add-dma_size.patch"
# content [6f16df2a390d113d46cdc65e00c5f43452f486e5]
#
# add_file "packages/linux/linux-smdk2443/0037-Use-dma_size-parameter-and-fix-buffdone-oops.patch"
# content [17718ac96e7156c0edee0c93596be22745b43ed5]
#
# add_file "packages/linux/linux-smdk2443/0038-Add-smdk2443-s3c2443-ac97-and-wm9710-support.patch"
# content [4e18153c7902e1b9a42d4ab105b4d62bf5d11bfc]
#
# add_file "packages/linux/linux-smdk2443/asoc-mainline.patch"
# content [0f64f6c71290a0e6486509d5e0cf387b5a0d0e8c]
#
# add_file "packages/linux/linux-smdk2443/defconfig-smdk2443"
# content [e9be8dde2ca8dc808e7dda289b0a8d037d55e12d]
#
# add_file "packages/linux/linux-smdk2443_2.6.20+git.bb"
# content [a1840195b97c8cc47bdb27762c8a012f7766475c]
#
============================================================
--- packages/linux/linux-smdk2443/0020-Add-ASoC-S3C24xx-platform-support.patch 6d6e82ae5e2783aa99cc1e9b554172458238caa5
+++ packages/linux/linux-smdk2443/0020-Add-ASoC-S3C24xx-platform-support.patch 6d6e82ae5e2783aa99cc1e9b554172458238caa5
@@ -0,0 +1,1077 @@
+From a958d8bfdf4fd043471012560a7e9a089d81390e Mon Sep 17 00:00:00 2001
+From: Liam Girdwood <liam at localhost.localdomain>
+Date: Sun, 4 Mar 2007 16:56:28 +0000
+Subject: [PATCH] Add ASoC S3C24xx platform support.
+
+Signed-off-by: Ben Dooks <ben at simtec.co.uk>
+Signed-off-by: Graeme Gregory <gg at opensource.wolfsonmicro.com>
+Signed-off-by: Liam Girdwood <lg at opensource.wolfsonmicro.com>
+---
+ sound/soc/Kconfig | 1 +
+ sound/soc/Makefile | 2 +-
+ sound/soc/s3c24xx/Kconfig | 16 ++
+ sound/soc/s3c24xx/Makefile | 7 +
+ sound/soc/s3c24xx/s3c24xx-i2s.c | 439 +++++++++++++++++++++++++++++++++++++
+ sound/soc/s3c24xx/s3c24xx-i2s.h | 35 +++
+ sound/soc/s3c24xx/s3c24xx-pcm.c | 462 +++++++++++++++++++++++++++++++++++++++
+ sound/soc/s3c24xx/s3c24xx-pcm.h | 32 +++
+ 8 files changed, 993 insertions(+), 1 deletions(-)
+ create mode 100644 sound/soc/s3c24xx/Kconfig
+ create mode 100644 sound/soc/s3c24xx/Makefile
+ create mode 100644 sound/soc/s3c24xx/s3c24xx-i2s.c
+ create mode 100644 sound/soc/s3c24xx/s3c24xx-i2s.h
+ create mode 100644 sound/soc/s3c24xx/s3c24xx-pcm.c
+ create mode 100644 sound/soc/s3c24xx/s3c24xx-pcm.h
+
+diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
+index ec821a5..74a5f5f 100644
+--- a/sound/soc/Kconfig
++++ b/sound/soc/Kconfig
+@@ -24,6 +24,7 @@ menu "SoC Platforms"
+ depends on SND_SOC
+ source "sound/soc/at91/Kconfig"
+ source "sound/soc/pxa/Kconfig"
++source "sound/soc/s3c24xx/Kconfig"
+ endmenu
+
+ # Supported codecs
+diff --git a/sound/soc/Makefile b/sound/soc/Makefile
+index 98e6f49..0ae2e49 100644
+--- a/sound/soc/Makefile
++++ b/sound/soc/Makefile
+@@ -1,4 +1,4 @@
+ snd-soc-core-objs := soc-core.o soc-dapm.o
+
+ obj-$(CONFIG_SND_SOC) += snd-soc-core.o
+-obj-$(CONFIG_SND_SOC) += codecs/ at91/ pxa/
++obj-$(CONFIG_SND_SOC) += codecs/ at91/ pxa/ s3c24xx/
+diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig
+new file mode 100644
+index 0000000..433da9f
+--- /dev/null
++++ b/sound/soc/s3c24xx/Kconfig
+@@ -0,0 +1,16 @@
++menu "SoC Audio for the Samsung S3C24XX"
++
++config SND_S3C24XX_SOC
++ tristate "SoC Audio for the Samsung S3C24XX chips"
++ depends on ARCH_S3C2410 && SND
++ select SND_PCM
++ help
++ Say Y or M if you want to add support for codecs attached to
++ the S3C24XX AC97, I2S or SSP interface. You will also need
++ to select the audio interfaces to support below.
++
++config SND_S3C24XX_SOC_I2S
++ tristate
++
++endmenu
++
+diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile
+new file mode 100644
+index 0000000..56200d7
+--- /dev/null
++++ b/sound/soc/s3c24xx/Makefile
+@@ -0,0 +1,7 @@
++# S3c24XX Platform Support
++snd-soc-s3c24xx-objs := s3c24xx-pcm.o
++snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o
++
++obj-$(CONFIG_SND_S3C24XX_SOC) += snd-soc-s3c24xx.o
++obj-$(CONFIG_SND_S3C24XX_SOC_I2S) += snd-soc-s3c24xx-i2s.o
++
+diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c
+new file mode 100644
+index 0000000..df655a5
+--- /dev/null
++++ b/sound/soc/s3c24xx/s3c24xx-i2s.c
+@@ -0,0 +1,439 @@
++/*
++ * s3c24xx-i2s.c -- ALSA Soc Audio Layer
++ *
++ * (c) 2006 Wolfson Microelectronics PLC.
++ * Graeme Gregory graeme.gregory at wolfsonmicro.com or linux at wolfsonmicro.com
++ *
++ * (c) 2004-2005 Simtec Electronics
++ * http://armlinux.simtec.co.uk/
++ * Ben Dooks <ben at simtec.co.uk>
++ *
++ * 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.
++ *
++ *
++ * Revision history
++ * 11th Dec 2006 Merged with Simtec driver
++ * 10th Nov 2006 Initial version.
++ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/device.h>
++#include <linux/delay.h>
++#include <linux/clk.h>
++#include <sound/driver.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/initval.h>
++#include <sound/soc.h>
++
++#include <asm/hardware.h>
++#include <asm/io.h>
++#include <asm/arch/regs-iis.h>
++#include <asm/arch/regs-gpio.h>
++#include <asm/arch/regs-clock.h>
++#include <asm/arch/audio.h>
++#include <asm/dma.h>
++#include <asm/arch/dma.h>
++
++#include "s3c24xx-pcm.h"
++#include "s3c24xx-i2s.h"
++
++#define S3C24XX_I2S_DEBUG 0
++#if S3C24XX_I2S_DEBUG
++#define DBG(x...) printk(KERN_DEBUG x)
++#else
++#define DBG(x...)
++#endif
++
++static struct s3c2410_dma_client s3c24xx_dma_client_out = {
++ .name = "I2S PCM Stereo out"
++};
++
++static struct s3c2410_dma_client s3c24xx_dma_client_in = {
++ .name = "I2S PCM Stereo in"
++};
++
++static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_out = {
++ .client = &s3c24xx_dma_client_out,
++ .channel = DMACH_I2S_OUT,
++ .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO
++};
++
++static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_in = {
++ .client = &s3c24xx_dma_client_in,
++ .channel = DMACH_I2S_IN,
++ .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO
++};
++
++struct s3c24xx_i2s_info {
++ void __iomem *regs;
++ struct clk *iis_clk;
++};
++static struct s3c24xx_i2s_info s3c24xx_i2s;
++
++static void s3c24xx_snd_txctrl(int on)
++{
++ u32 iisfcon;
++ u32 iiscon;
++ u32 iismod;
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
++ iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
++ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
++
++ DBG("r: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
++
++ if (on) {
++ iisfcon |= S3C2410_IISFCON_TXDMA | S3C2410_IISFCON_TXENABLE;
++ iiscon |= S3C2410_IISCON_TXDMAEN | S3C2410_IISCON_IISEN;
++ iiscon &= ~S3C2410_IISCON_TXIDLE;
++ iismod |= S3C2410_IISMOD_TXMODE;
++
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
++ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
++ } else {
++ /* note, we have to disable the FIFOs otherwise bad things
++ * seem to happen when the DMA stops. According to the
++ * Samsung supplied kernel, this should allow the DMA
++ * engine and FIFOs to reset. If this isn't allowed, the
++ * DMA engine will simply freeze randomly.
++ */
++
++ iisfcon &= ~S3C2410_IISFCON_TXENABLE;
++ iisfcon &= ~S3C2410_IISFCON_TXDMA;
++ iiscon |= S3C2410_IISCON_TXIDLE;
++ iiscon &= ~S3C2410_IISCON_TXDMAEN;
++ iismod &= ~S3C2410_IISMOD_TXMODE;
++
++ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
++ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ }
++
++ DBG("w: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
++}
++
++static void s3c24xx_snd_rxctrl(int on)
++{
++ u32 iisfcon;
++ u32 iiscon;
++ u32 iismod;
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
++ iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
++ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
++
++ DBG("r: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
++
++ if (on) {
++ iisfcon |= S3C2410_IISFCON_RXDMA | S3C2410_IISFCON_RXENABLE;
++ iiscon |= S3C2410_IISCON_RXDMAEN | S3C2410_IISCON_IISEN;
++ iiscon &= ~S3C2410_IISCON_RXIDLE;
++ iismod |= S3C2410_IISMOD_RXMODE;
++
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
++ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
++ } else {
++ /* note, we have to disable the FIFOs otherwise bad things
++ * seem to happen when the DMA stops. According to the
++ * Samsung supplied kernel, this should allow the DMA
++ * engine and FIFOs to reset. If this isn't allowed, the
++ * DMA engine will simply freeze randomly.
++ */
++
++ iisfcon &= ~S3C2410_IISFCON_RXENABLE;
++ iisfcon &= ~S3C2410_IISFCON_RXDMA;
++ iiscon |= S3C2410_IISCON_RXIDLE;
++ iiscon &= ~S3C2410_IISCON_RXDMAEN;
++ iismod &= ~S3C2410_IISMOD_RXMODE;
++
++ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
++ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ }
++
++ DBG("w: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
++}
++
++/*
++ * Wait for the LR signal to allow synchronisation to the L/R clock
++ * from the codec. May only be needed for slave mode.
++ */
++static int s3c24xx_snd_lrsync(void)
++{
++ u32 iiscon;
++ unsigned long timeout = jiffies + msecs_to_jiffies(5);
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ while (1) {
++ iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
++ if (iiscon & S3C2410_IISCON_LRINDEX)
++ break;
++
++ if (timeout < jiffies)
++ return -ETIMEDOUT;
++ }
++
++ return 0;
++}
++
++/*
++ * Check whether CPU is the master or slave
++ */
++static inline int s3c24xx_snd_is_clkmaster(void)
++{
++ DBG("Entered %s\n", __FUNCTION__);
++
++ return (readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & S3C2410_IISMOD_SLAVE) ? 0:1;
++}
++
++/*
++ * Set S3C24xx I2S DAI format
++ */
++static int s3c24xx_i2s_set_fmt(struct snd_soc_cpu_dai *cpu_dai,
++ unsigned int fmt)
++{
++ u32 iismod;
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
++ DBG("hw_params r: IISMOD: %lx \n", iismod);
++
++ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++ case SND_SOC_DAIFMT_CBM_CFM:
++ iismod |= S3C2410_IISMOD_SLAVE;
++ break;
++ case SND_SOC_DAIFMT_CBS_CFS:
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
++ case SND_SOC_DAIFMT_LEFT_J:
++ iismod |= S3C2410_IISMOD_MSB;
++ break;
++ case SND_SOC_DAIFMT_I2S:
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ DBG("hw_params w: IISMOD: %lx \n", iismod);
++ return 0;
++}
++
++static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params)
++{
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ u32 iismod;
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
++ rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_out;
++ else
++ rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_in;
++
++ /* Working copies of register */
++ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
++ DBG("hw_params r: IISMOD: %lx\n", iismod);
++
++ switch (params_format(params)) {
++ case SNDRV_PCM_FORMAT_S8:
++ break;
++ case SNDRV_PCM_FORMAT_S16_LE:
++ iismod |= S3C2410_IISMOD_16BIT;
++ break;
++ }
++
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ DBG("hw_params w: IISMOD: %lx\n", iismod);
++ return 0;
++}
++
++static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd)
++{
++ int ret = 0;
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ switch (cmd) {
++ case SNDRV_PCM_TRIGGER_START:
++ case SNDRV_PCM_TRIGGER_RESUME:
++ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++ if (!s3c24xx_snd_is_clkmaster()) {
++ ret = s3c24xx_snd_lrsync();
++ if (ret)
++ goto exit_err;
++ }
++
++ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
++ s3c24xx_snd_rxctrl(1);
++ else
++ s3c24xx_snd_txctrl(1);
++ break;
++ case SNDRV_PCM_TRIGGER_STOP:
++ case SNDRV_PCM_TRIGGER_SUSPEND:
++ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
++ s3c24xx_snd_rxctrl(0);
++ else
++ s3c24xx_snd_txctrl(0);
++ break;
++ default:
++ ret = -EINVAL;
++ break;
++ }
++
++exit_err:
++ return ret;
++}
++
++/*
++ * Set S3C24xx Clock source
++ */
++static int s3c24xx_i2s_set_sysclk(struct snd_soc_cpu_dai *cpu_dai,
++ int clk_id, unsigned int freq, int dir)
++{
++ u32 iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ iismod &= ~S3C2440_IISMOD_MPLL;
++
++ switch (clk_id) {
++ case S3C24XX_CLKSRC_PCLK:
++ break;
++ case S3C24XX_CLKSRC_MPLL:
++ iismod |= S3C2440_IISMOD_MPLL;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ return 0;
++}
++
++/*
++ * Set S3C24xx Clock dividers
++ */
++static int s3c24xx_i2s_set_clkdiv(struct snd_soc_cpu_dai *cpu_dai,
++ int div_id, int div)
++{
++ u32 reg;
++
++ DBG("Entered %s\n", __FUNCTION__);
++
++ switch (div_id) {
++ case S3C24XX_DIV_MCLK:
++ reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~S3C2410_IISMOD_FS_MASK;
++ writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ break;
++ case S3C24XX_DIV_BCLK:
++ reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~(S3C2410_IISMOD_384FS);
++ writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
++ break;
++ case S3C24XX_DIV_PRESCALER:
++ writel(div, s3c24xx_i2s.regs + S3C2410_IISPSR);
++ reg = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
++ writel(reg | S3C2410_IISCON_PSCEN, s3c24xx_i2s.regs + S3C2410_IISCON);
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++/*
++ * To avoid duplicating clock code, allow machine driver to
++ * get the clockrate from here.
++ */
++u32 s3c24xx_i2s_get_clockrate(void)
++{
++ return clk_get_rate(s3c24xx_i2s.iis_clk);
++}
++EXPORT_SYMBOL_GPL(s3c24xx_i2s_get_clockrate);
++
++static int s3c24xx_i2s_probe(struct platform_device *pdev)
++{
++ DBG("Entered %s\n", __FUNCTION__);
++
++ s3c24xx_i2s.regs = ioremap(S3C2410_PA_IIS, 0x100);
++ if (s3c24xx_i2s.regs == NULL)
++ return -ENXIO;
++
++ s3c24xx_i2s.iis_clk=clk_get(&pdev->dev, "iis");
++ if (s3c24xx_i2s.iis_clk == NULL) {
++ DBG("failed to get iis_clock\n");
++ return -ENODEV;
++ }
++ clk_enable(s3c24xx_i2s.iis_clk);
++
++ /* Configure the I2S pins in correct mode */
++ s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
++ s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
++ s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
++ s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
++ s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
++
++ writel(S3C2410_IISCON_IISEN, s3c24xx_i2s.regs + S3C2410_IISCON);
++
++ s3c24xx_snd_txctrl(0);
++ s3c24xx_snd_rxctrl(0);
++
++ return 0;
++}
++
++#define S3C24XX_I2S_RATES \
++ (SNDRV_PCM_RATE_8000 | SN%s
>>> DIFF TRUNCATED @ 16K
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