aboutsummaryrefslogtreecommitdiff
path: root/sound/soc/samsung/i2s.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/samsung/i2s.c')
-rw-r--r--sound/soc/samsung/i2s.c630
1 files changed, 377 insertions, 253 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index ffa09b3b2ca..2ac76fa3e74 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -3,7 +3,7 @@
* ALSA SoC Audio Layer - Samsung I2S Controller driver
*
* Copyright (c) 2010 Samsung Electronics Co. Ltd.
- * Jaswinder Singh <jassi.brar@samsung.com>
+ * Jaswinder Singh <jassisinghbrar@gmail.com>
*
* 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
@@ -14,120 +14,33 @@
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/pm_runtime.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
-#include <plat/audio.h>
+#include <linux/platform_data/asoc-s3c.h>
#include "dma.h"
+#include "idma.h"
#include "i2s.h"
-
-#define I2SCON 0x0
-#define I2SMOD 0x4
-#define I2SFIC 0x8
-#define I2SPSR 0xc
-#define I2STXD 0x10
-#define I2SRXD 0x14
-#define I2SFICS 0x18
-#define I2STXDS 0x1c
-
-#define CON_RSTCLR (1 << 31)
-#define CON_FRXOFSTATUS (1 << 26)
-#define CON_FRXORINTEN (1 << 25)
-#define CON_FTXSURSTAT (1 << 24)
-#define CON_FTXSURINTEN (1 << 23)
-#define CON_TXSDMA_PAUSE (1 << 20)
-#define CON_TXSDMA_ACTIVE (1 << 18)
-
-#define CON_FTXURSTATUS (1 << 17)
-#define CON_FTXURINTEN (1 << 16)
-#define CON_TXFIFO2_EMPTY (1 << 15)
-#define CON_TXFIFO1_EMPTY (1 << 14)
-#define CON_TXFIFO2_FULL (1 << 13)
-#define CON_TXFIFO1_FULL (1 << 12)
-
-#define CON_LRINDEX (1 << 11)
-#define CON_TXFIFO_EMPTY (1 << 10)
-#define CON_RXFIFO_EMPTY (1 << 9)
-#define CON_TXFIFO_FULL (1 << 8)
-#define CON_RXFIFO_FULL (1 << 7)
-#define CON_TXDMA_PAUSE (1 << 6)
-#define CON_RXDMA_PAUSE (1 << 5)
-#define CON_TXCH_PAUSE (1 << 4)
-#define CON_RXCH_PAUSE (1 << 3)
-#define CON_TXDMA_ACTIVE (1 << 2)
-#define CON_RXDMA_ACTIVE (1 << 1)
-#define CON_ACTIVE (1 << 0)
-
-#define MOD_OPCLK_CDCLK_OUT (0 << 30)
-#define MOD_OPCLK_CDCLK_IN (1 << 30)
-#define MOD_OPCLK_BCLK_OUT (2 << 30)
-#define MOD_OPCLK_PCLK (3 << 30)
-#define MOD_OPCLK_MASK (3 << 30)
-#define MOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */
-
-#define MOD_BLCS_SHIFT 26
-#define MOD_BLCS_16BIT (0 << MOD_BLCS_SHIFT)
-#define MOD_BLCS_8BIT (1 << MOD_BLCS_SHIFT)
-#define MOD_BLCS_24BIT (2 << MOD_BLCS_SHIFT)
-#define MOD_BLCS_MASK (3 << MOD_BLCS_SHIFT)
-#define MOD_BLCP_SHIFT 24
-#define MOD_BLCP_16BIT (0 << MOD_BLCP_SHIFT)
-#define MOD_BLCP_8BIT (1 << MOD_BLCP_SHIFT)
-#define MOD_BLCP_24BIT (2 << MOD_BLCP_SHIFT)
-#define MOD_BLCP_MASK (3 << MOD_BLCP_SHIFT)
-
-#define MOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */
-#define MOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */
-#define MOD_C1DD_HHALF (1 << 19)
-#define MOD_C1DD_LHALF (1 << 18)
-#define MOD_DC2_EN (1 << 17)
-#define MOD_DC1_EN (1 << 16)
-#define MOD_BLC_16BIT (0 << 13)
-#define MOD_BLC_8BIT (1 << 13)
-#define MOD_BLC_24BIT (2 << 13)
-#define MOD_BLC_MASK (3 << 13)
-
-#define MOD_IMS_SYSMUX (1 << 10)
-#define MOD_SLAVE (1 << 11)
-#define MOD_TXONLY (0 << 8)
-#define MOD_RXONLY (1 << 8)
-#define MOD_TXRX (2 << 8)
-#define MOD_MASK (3 << 8)
-#define MOD_LR_LLOW (0 << 7)
-#define MOD_LR_RLOW (1 << 7)
-#define MOD_SDF_IIS (0 << 5)
-#define MOD_SDF_MSB (1 << 5)
-#define MOD_SDF_LSB (2 << 5)
-#define MOD_SDF_MASK (3 << 5)
-#define MOD_RCLK_256FS (0 << 3)
-#define MOD_RCLK_512FS (1 << 3)
-#define MOD_RCLK_384FS (2 << 3)
-#define MOD_RCLK_768FS (3 << 3)
-#define MOD_RCLK_MASK (3 << 3)
-#define MOD_BCLK_32FS (0 << 1)
-#define MOD_BCLK_48FS (1 << 1)
-#define MOD_BCLK_16FS (2 << 1)
-#define MOD_BCLK_24FS (3 << 1)
-#define MOD_BCLK_MASK (3 << 1)
-#define MOD_8BIT (1 << 0)
-
-#define MOD_CDCLKCON (1 << 12)
-
-#define PSR_PSREN (1 << 15)
-
-#define FIC_TX2COUNT(x) (((x) >> 24) & 0xf)
-#define FIC_TX1COUNT(x) (((x) >> 16) & 0xf)
-
-#define FIC_TXFLUSH (1 << 15)
-#define FIC_RXFLUSH (1 << 7)
-#define FIC_TXCOUNT(x) (((x) >> 8) & 0xf)
-#define FIC_RXCOUNT(x) (((x) >> 0) & 0xf)
-#define FICS_TXCOUNT(x) (((x) >> 8) & 0x7f)
+#include "i2s-regs.h"
#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+enum samsung_dai_type {
+ TYPE_PRI,
+ TYPE_SEC,
+};
+
+struct samsung_i2s_dai_data {
+ int dai_type;
+ u32 quirks;
+};
+
struct i2s_dai {
/* Platform device for this DAI */
struct platform_device *pdev;
@@ -148,8 +61,6 @@ struct i2s_dai {
struct clk *clk;
/* Clock for generating I2S signals */
struct clk *op_clk;
- /* Array of clock names for op_clk */
- const char **src_clk;
/* Pointer to the Primary_Fifo if this is Sec_Fifo, NULL otherwise */
struct i2s_dai *pri_dai;
/* Pointer to the Secondary_Fifo if it has one, NULL otherwise */
@@ -162,10 +73,12 @@ struct i2s_dai {
/* DMA parameters */
struct s3c_dma_params dma_playback;
struct s3c_dma_params dma_capture;
+ struct s3c_dma_params idma_playback;
u32 quirks;
u32 suspend_i2smod;
u32 suspend_i2scon;
u32 suspend_i2spsr;
+ unsigned long gpios[7]; /* i2s gpio line numbers */
};
/* Lock for cross i/f checks */
@@ -191,7 +104,7 @@ static inline bool tx_active(struct i2s_dai *i2s)
if (!i2s)
return false;
- active = readl(i2s->addr + I2SMOD);
+ active = readl(i2s->addr + I2SCON);
if (is_secondary(i2s))
active &= CON_TXSDMA_ACTIVE;
@@ -223,7 +136,7 @@ static inline bool rx_active(struct i2s_dai *i2s)
if (!i2s)
return false;
- active = readl(i2s->addr + I2SMOD) & CON_RXDMA_ACTIVE;
+ active = readl(i2s->addr + I2SCON) & CON_RXDMA_ACTIVE;
return active ? true : false;
}
@@ -284,7 +197,13 @@ static inline bool is_manager(struct i2s_dai *i2s)
/* Read RCLK of I2S (in multiples of LRCLK) */
static inline unsigned get_rfs(struct i2s_dai *i2s)
{
- u32 rfs = (readl(i2s->addr + I2SMOD) >> 3) & 0x3;
+ u32 rfs;
+
+ if (i2s->quirks & QUIRK_SUPPORTS_TDM)
+ rfs = readl(i2s->addr + I2SMOD) >> EXYNOS5420_MOD_RCLK_SHIFT;
+ else
+ rfs = (readl(i2s->addr + I2SMOD) >> MOD_RCLK_SHIFT);
+ rfs &= MOD_RCLK_MASK;
switch (rfs) {
case 3: return 768;
@@ -298,21 +217,26 @@ static inline unsigned get_rfs(struct i2s_dai *i2s)
static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
{
u32 mod = readl(i2s->addr + I2SMOD);
+ int rfs_shift;
- mod &= ~MOD_RCLK_MASK;
+ if (i2s->quirks & QUIRK_SUPPORTS_TDM)
+ rfs_shift = EXYNOS5420_MOD_RCLK_SHIFT;
+ else
+ rfs_shift = MOD_RCLK_SHIFT;
+ mod &= ~(MOD_RCLK_MASK << rfs_shift);
switch (rfs) {
case 768:
- mod |= MOD_RCLK_768FS;
+ mod |= (MOD_RCLK_768FS << rfs_shift);
break;
case 512:
- mod |= MOD_RCLK_512FS;
+ mod |= (MOD_RCLK_512FS << rfs_shift);
break;
case 384:
- mod |= MOD_RCLK_384FS;
+ mod |= (MOD_RCLK_384FS << rfs_shift);
break;
default:
- mod |= MOD_RCLK_256FS;
+ mod |= (MOD_RCLK_256FS << rfs_shift);
break;
}
@@ -322,9 +246,22 @@ static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
/* Read Bit-Clock of I2S (in multiples of LRCLK) */
static inline unsigned get_bfs(struct i2s_dai *i2s)
{
- u32 bfs = (readl(i2s->addr + I2SMOD) >> 1) & 0x3;
+ u32 bfs;
+
+ if (i2s->quirks & QUIRK_SUPPORTS_TDM) {
+ bfs = readl(i2s->addr + I2SMOD) >> EXYNOS5420_MOD_BCLK_SHIFT;
+ bfs &= EXYNOS5420_MOD_BCLK_MASK;
+ } else {
+ bfs = readl(i2s->addr + I2SMOD) >> MOD_BCLK_SHIFT;
+ bfs &= MOD_BCLK_MASK;
+ }
switch (bfs) {
+ case 8: return 256;
+ case 7: return 192;
+ case 6: return 128;
+ case 5: return 96;
+ case 4: return 64;
case 3: return 24;
case 2: return 16;
case 1: return 48;
@@ -336,21 +273,50 @@ static inline unsigned get_bfs(struct i2s_dai *i2s)
static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs)
{
u32 mod = readl(i2s->addr + I2SMOD);
+ int bfs_shift;
+ int tdm = i2s->quirks & QUIRK_SUPPORTS_TDM;
- mod &= ~MOD_BCLK_MASK;
+ if (i2s->quirks & QUIRK_SUPPORTS_TDM) {
+ bfs_shift = EXYNOS5420_MOD_BCLK_SHIFT;
+ mod &= ~(EXYNOS5420_MOD_BCLK_MASK << bfs_shift);
+ } else {
+ bfs_shift = MOD_BCLK_SHIFT;
+ mod &= ~(MOD_BCLK_MASK << bfs_shift);
+ }
+
+ /* Non-TDM I2S controllers do not support BCLK > 48 * FS */
+ if (!tdm && bfs > 48) {
+ dev_err(&i2s->pdev->dev, "Unsupported BCLK divider\n");
+ return;
+ }
switch (bfs) {
case 48:
- mod |= MOD_BCLK_48FS;
+ mod |= (MOD_BCLK_48FS << bfs_shift);
break;
case 32:
- mod |= MOD_BCLK_32FS;
+ mod |= (MOD_BCLK_32FS << bfs_shift);
break;
case 24:
- mod |= MOD_BCLK_24FS;
+ mod |= (MOD_BCLK_24FS << bfs_shift);
break;
case 16:
- mod |= MOD_BCLK_16FS;
+ mod |= (MOD_BCLK_16FS << bfs_shift);
+ break;
+ case 64:
+ mod |= (EXYNOS5420_MOD_BCLK_64FS << bfs_shift);
+ break;
+ case 96:
+ mod |= (EXYNOS5420_MOD_BCLK_96FS << bfs_shift);
+ break;
+ case 128:
+ mod |= (EXYNOS5420_MOD_BCLK_128FS << bfs_shift);
+ break;
+ case 192:
+ mod |= (EXYNOS5420_MOD_BCLK_192FS << bfs_shift);
+ break;
+ case 256:
+ mod |= (EXYNOS5420_MOD_BCLK_256FS << bfs_shift);
break;
default:
dev_err(&i2s->pdev->dev, "Wrong BCLK Divider!\n");
@@ -485,6 +451,10 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
u32 mod = readl(i2s->addr + I2SMOD);
switch (clk_id) {
+ case SAMSUNG_I2S_OPCLK:
+ mod &= ~MOD_OPCLK_MASK;
+ mod |= dir;
+ break;
case SAMSUNG_I2S_CDCLK:
/* Shouldn't matter in GATING(CLOCK_IN) mode */
if (dir == SND_SOC_CLOCK_IN)
@@ -518,10 +488,10 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
clk_id = 1;
if (!any_active(i2s)) {
- if (i2s->op_clk) {
+ if (i2s->op_clk && !IS_ERR(i2s->op_clk)) {
if ((clk_id && !(mod & MOD_IMS_SYSMUX)) ||
(!clk_id && (mod & MOD_IMS_SYSMUX))) {
- clk_disable(i2s->op_clk);
+ clk_disable_unprepare(i2s->op_clk);
clk_put(i2s->op_clk);
} else {
i2s->rclk_srcrate =
@@ -530,9 +500,17 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
}
}
- i2s->op_clk = clk_get(&i2s->pdev->dev,
- i2s->src_clk[clk_id]);
- clk_enable(i2s->op_clk);
+ if (clk_id)
+ i2s->op_clk = clk_get(&i2s->pdev->dev,
+ "i2s_opclk1");
+ else
+ i2s->op_clk = clk_get(&i2s->pdev->dev,
+ "i2s_opclk0");
+
+ if (WARN_ON(IS_ERR(i2s->op_clk)))
+ return PTR_ERR(i2s->op_clk);
+
+ clk_prepare_enable(i2s->op_clk);
i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
/* Over-ride the other's */
@@ -573,20 +551,32 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
{
struct i2s_dai *i2s = to_info(dai);
u32 mod = readl(i2s->addr + I2SMOD);
+ int lrp_shift, sdf_shift, sdf_mask, lrp_rlow;
u32 tmp = 0;
+ if (i2s->quirks & QUIRK_SUPPORTS_TDM) {
+ lrp_shift = EXYNOS5420_MOD_LRP_SHIFT;
+ sdf_shift = EXYNOS5420_MOD_SDF_SHIFT;
+ } else {
+ lrp_shift = MOD_LRP_SHIFT;
+ sdf_shift = MOD_SDF_SHIFT;
+ }
+
+ sdf_mask = MOD_SDF_MASK << sdf_shift;
+ lrp_rlow = MOD_LR_RLOW << lrp_shift;
+
/* Format is priority */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_RIGHT_J:
- tmp |= MOD_LR_RLOW;
- tmp |= MOD_SDF_MSB;
+ tmp |= lrp_rlow;
+ tmp |= (MOD_SDF_MSB << sdf_shift);
break;
case SND_SOC_DAIFMT_LEFT_J:
- tmp |= MOD_LR_RLOW;
- tmp |= MOD_SDF_LSB;
+ tmp |= lrp_rlow;
+ tmp |= (MOD_SDF_LSB << sdf_shift);
break;
case SND_SOC_DAIFMT_I2S:
- tmp |= MOD_SDF_IIS;
+ tmp |= (MOD_SDF_IIS << sdf_shift);
break;
default:
dev_err(&i2s->pdev->dev, "Format not supported\n");
@@ -601,10 +591,10 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_NB_IF:
- if (tmp & MOD_LR_RLOW)
- tmp &= ~MOD_LR_RLOW;
+ if (tmp & lrp_rlow)
+ tmp &= ~lrp_rlow;
else
- tmp |= MOD_LR_RLOW;
+ tmp |= lrp_rlow;
break;
default:
dev_err(&i2s->pdev->dev, "Polarity not supported\n");
@@ -626,15 +616,18 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
return -EINVAL;
}
+ /*
+ * Don't change the I2S mode if any controller is active on this
+ * channel.
+ */
if (any_active(i2s) &&
- ((mod & (MOD_SDF_MASK | MOD_LR_RLOW
- | MOD_SLAVE)) != tmp)) {
+ ((mod & (sdf_mask | lrp_rlow | MOD_SLAVE)) != tmp)) {
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
return -EAGAIN;
}
- mod &= ~(MOD_SDF_MASK | MOD_LR_RLOW | MOD_SLAVE);
+ mod &= ~(sdf_mask | lrp_rlow | MOD_SLAVE);
mod |= tmp;
writel(mod, i2s->addr + I2SMOD);
@@ -657,6 +650,17 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
mod |= MOD_DC1_EN;
break;
case 2:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ i2s->dma_playback.dma_size = 4;
+ else
+ i2s->dma_capture.dma_size = 4;
+ break;
+ case 1:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ i2s->dma_playback.dma_size = 2;
+ else
+ i2s->dma_capture.dma_size = 2;
+
break;
default:
dev_err(&i2s->pdev->dev, "%d channels not supported\n",
@@ -672,8 +676,8 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
if (is_manager(i2s))
mod &= ~MOD_BLC_MASK;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
+ switch (params_width(params)) {
+ case 8:
if (is_secondary(i2s))
mod |= MOD_BLCS_8BIT;
else
@@ -681,7 +685,7 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
if (is_manager(i2s))
mod |= MOD_BLC_8BIT;
break;
- case SNDRV_PCM_FORMAT_S16_LE:
+ case 16:
if (is_secondary(i2s))
mod |= MOD_BLCS_16BIT;
else
@@ -689,7 +693,7 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
if (is_manager(i2s))
mod |= MOD_BLC_16BIT;
break;
- case SNDRV_PCM_FORMAT_S24_LE:
+ case 24:
if (is_secondary(i2s))
mod |= MOD_BLCS_24BIT;
else
@@ -704,12 +708,7 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
}
writel(mod, i2s->addr + I2SMOD);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- snd_soc_dai_set_dma_data(dai, substream,
- (void *)&i2s->dma_playback);
- else
- snd_soc_dai_set_dma_data(dai, substream,
- (void *)&i2s->dma_capture);
+ samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
i2s->frmclk = params_rate(params);
@@ -733,8 +732,8 @@ static int i2s_startup(struct snd_pcm_substream *substream,
else
i2s->mode |= DAI_MANAGER;
- /* Enforce set_sysclk in Master mode */
- i2s->rclk_srcrate = 0;
+ if (!any_active(i2s) && (i2s->quirks & QUIRK_NEED_RSTCLR))
+ writel(CON_RSTCLR, i2s->addr + I2SCON);
spin_unlock_irqrestore(&lock, flags);
@@ -810,13 +809,13 @@ static int config_setup(struct i2s_dai *i2s)
return -EAGAIN;
}
- /* Don't bother RFS, BFS & PSR in Slave mode */
- if (is_slave(i2s))
- return 0;
-
set_bfs(i2s, bfs);
set_rfs(i2s, rfs);
+ /* Don't bother with PSR in Slave mode */
+ if (is_slave(i2s))
+ return 0;
+
if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
psr = i2s->rclk_srcrate / i2s->frmclk / rfs;
writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);
@@ -859,15 +858,13 @@ static int i2s_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
local_irq_save(flags);
- if (capture)
+ if (capture) {
i2s_rxctrl(i2s, 0);
- else
- i2s_txctrl(i2s, 0);
-
- if (capture)
i2s_fifo(i2s, FIC_RXFLUSH);
- else
+ } else {
+ i2s_txctrl(i2s, 0);
i2s_fifo(i2s, FIC_TXFLUSH);
+ }
local_irq_restore(flags);
break;
@@ -954,8 +951,11 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
struct i2s_dai *i2s = to_info(dai);
struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
- if (other && other->clk) /* If this is probe on secondary */
+ if (other && other->clk) { /* If this is probe on secondary */
+ samsung_asoc_init_dma_data(dai, &other->sec_dai->dma_playback,
+ NULL);
goto probe_exit;
+ }
i2s->addr = ioremap(i2s->base, 0x100);
if (i2s->addr == NULL) {
@@ -969,7 +969,9 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
iounmap(i2s->addr);
return -ENOENT;
}
- clk_enable(i2s->clk);
+ clk_prepare_enable(i2s->clk);
+
+ samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
if (other) {
other->addr = i2s->addr;
@@ -979,10 +981,15 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
if (i2s->quirks & QUIRK_NEED_RSTCLR)
writel(CON_RSTCLR, i2s->addr + I2SCON);
+ if (i2s->quirks & QUIRK_SEC_DAI)
+ idma_reg_addr_init(i2s->addr,
+ i2s->sec_dai->idma_playback.dma_addr);
+
probe_exit:
/* Reset any constraint on RFS and BFS */
i2s->rfs = 0;
i2s->bfs = 0;
+ i2s->rclk_srcrate = 0;
i2s_txctrl(i2s, 0);
i2s_rxctrl(i2s, 0);
i2s_fifo(i2s, FIC_TXFLUSH);
@@ -1007,7 +1014,7 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
if (i2s->quirks & QUIRK_NEED_RSTCLR)
writel(0, i2s->addr + I2SCON);
- clk_disable(i2s->clk);
+ clk_disable_unprepare(i2s->clk);
clk_put(i2s->clk);
iounmap(i2s->addr);
@@ -1018,7 +1025,7 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
return 0;
}
-static struct snd_soc_dai_ops samsung_i2s_dai_ops = {
+static const struct snd_soc_dai_ops samsung_i2s_dai_ops = {
.trigger = i2s_trigger,
.hw_params = i2s_hw_params,
.set_fmt = i2s_set_fmt,
@@ -1029,18 +1036,22 @@ static struct snd_soc_dai_ops samsung_i2s_dai_ops = {
.delay = i2s_delay,
};
+static const struct snd_soc_component_driver samsung_i2s_component = {
+ .name = "samsung-i2s",
+};
+
#define SAMSUNG_I2S_RATES SNDRV_PCM_RATE_8000_96000
#define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE)
-static __devinit
-struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
+static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
{
struct i2s_dai *i2s;
+ int ret;
- i2s = kzalloc(sizeof(struct i2s_dai), GFP_KERNEL);
+ i2s = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dai), GFP_KERNEL);
if (i2s == NULL)
return NULL;
@@ -1053,75 +1064,142 @@ struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
i2s->i2s_dai_drv.ops = &samsung_i2s_dai_ops;
i2s->i2s_dai_drv.suspend = i2s_suspend;
i2s->i2s_dai_drv.resume = i2s_resume;
- i2s->i2s_dai_drv.playback.channels_min = 2;
+ i2s->i2s_dai_drv.playback.channels_min = 1;
i2s->i2s_dai_drv.playback.channels_max = 2;
i2s->i2s_dai_drv.playback.rates = SAMSUNG_I2S_RATES;
i2s->i2s_dai_drv.playback.formats = SAMSUNG_I2S_FMTS;
if (!sec) {
- i2s->i2s_dai_drv.capture.channels_min = 2;
+ i2s->i2s_dai_drv.capture.channels_min = 1;
i2s->i2s_dai_drv.capture.channels_max = 2;
i2s->i2s_dai_drv.capture.rates = SAMSUNG_I2S_RATES;
i2s->i2s_dai_drv.capture.formats = SAMSUNG_I2S_FMTS;
+ dev_set_drvdata(&i2s->pdev->dev, i2s);
} else { /* Create a new platform_device for Secondary */
- i2s->pdev = platform_device_register_resndata(NULL,
- pdev->name, pdev->id + SAMSUNG_I2S_SECOFF,
- NULL, 0, NULL, 0);
- if (IS_ERR(i2s->pdev)) {
- kfree(i2s);
+ i2s->pdev = platform_device_alloc("samsung-i2s-sec", -1);
+ if (!i2s->pdev)
return NULL;
- }
- }
- /* Pre-assign snd_soc_dai_set_drvdata */
- dev_set_drvdata(&i2s->pdev->dev, i2s);
+ i2s->pdev->dev.parent = &pdev->dev;
+
+ platform_set_drvdata(i2s->pdev, i2s);
+ ret = platform_device_add(i2s->pdev);
+ if (ret < 0)
+ return NULL;
+ }
return i2s;
}
-static __devinit int samsung_i2s_probe(struct platform_device *pdev)
+static const struct of_device_id exynos_i2s_match[];
+
+static inline const struct samsung_i2s_dai_data *samsung_i2s_get_driver_data(
+ struct platform_device *pdev)
+{
+#ifdef CONFIG_OF
+ if (pdev->dev.of_node) {
+ const struct of_device_id *match;
+ match = of_match_node(exynos_i2s_match, pdev->dev.of_node);
+ return match->data;
+ } else
+#endif
+ return (struct samsung_i2s_dai_data *)
+ platform_get_device_id(pdev)->driver_data;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+static int i2s_runtime_suspend(struct device *dev)
+{
+ struct i2s_dai *i2s = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(i2s->clk);
+
+ return 0;
+}
+
+static int i2s_runtime_resume(struct device *dev)
+{
+ struct i2s_dai *i2s = dev_get_drvdata(dev);
+
+ clk_prepare_enable(i2s->clk);
+
+ return 0;
+}
+#endif /* CONFIG_PM_RUNTIME */
+
+static int samsung_i2s_probe(struct platform_device *pdev)
{
- u32 dma_pl_chan, dma_cp_chan, dma_pl_sec_chan;
struct i2s_dai *pri_dai, *sec_dai = NULL;
- struct s3c_audio_pdata *i2s_pdata;
- struct samsung_i2s *i2s_cfg;
+ struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data;
+ struct samsung_i2s *i2s_cfg = NULL;
struct resource *res;
- u32 regs_base, quirks;
+ u32 regs_base, quirks = 0, idma_addr = 0;
+ struct device_node *np = pdev->dev.of_node;
+ const struct samsung_i2s_dai_data *i2s_dai_data;
int ret = 0;
/* Call during Seconday interface registration */
- if (pdev->id >= SAMSUNG_I2S_SECOFF) {
+ i2s_dai_data = samsung_i2s_get_driver_data(pdev);
+
+ if (i2s_dai_data->dai_type == TYPE_SEC) {
sec_dai = dev_get_drvdata(&pdev->dev);
- snd_soc_register_dai(&sec_dai->pdev->dev,
- &sec_dai->i2s_dai_drv);
+ if (!sec_dai) {
+ dev_err(&pdev->dev, "Unable to get drvdata\n");
+ return -EFAULT;
+ }
+ devm_snd_soc_register_component(&sec_dai->pdev->dev,
+ &samsung_i2s_component,
+ &sec_dai->i2s_dai_drv, 1);
+ samsung_asoc_dma_platform_register(&pdev->dev);
return 0;
}
- i2s_pdata = pdev->dev.platform_data;
- if (i2s_pdata == NULL) {
- dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n");
- return -EINVAL;
+ pri_dai = i2s_alloc_dai(pdev, false);
+ if (!pri_dai) {
+ dev_err(&pdev->dev, "Unable to alloc I2S_pri\n");
+ return -ENOMEM;
}
- res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get I2S-TX dma resource\n");
- return -ENXIO;
- }
- dma_pl_chan = res->start;
+ if (!np) {
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!res) {
+ dev_err(&pdev->dev,
+ "Unable to get I2S-TX dma resource\n");
+ return -ENXIO;
+ }
+ pri_dai->dma_playback.channel = res->start;
- res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get I2S-RX dma resource\n");
- return -ENXIO;
- }
- dma_cp_chan = res->start;
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!res) {
+ dev_err(&pdev->dev,
+ "Unable to get I2S-RX dma resource\n");
+ return -ENXIO;
+ }
+ pri_dai->dma_capture.channel = res->start;
- res = platform_get_resource(pdev, IORESOURCE_DMA, 2);
- if (res)
- dma_pl_sec_chan = res->start;
- else
- dma_pl_sec_chan = 0;
+ if (i2s_pdata == NULL) {
+ dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n");
+ return -EINVAL;
+ }
+
+ if (&i2s_pdata->type)
+ i2s_cfg = &i2s_pdata->type.i2s;
+
+ if (i2s_cfg) {
+ quirks = i2s_cfg->quirks;
+ idma_addr = i2s_cfg->idma_addr;
+ }
+ } else {
+ quirks = i2s_dai_data->quirks;
+ if (of_property_read_u32(np, "samsung,idma-addr",
+ &idma_addr)) {
+ if (quirks & QUIRK_SEC_DAI) {
+ dev_err(&pdev->dev, "idma address is not"\
+ "specified");
+ return -EINVAL;
+ }
+ }
+ }
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@@ -1136,25 +1214,14 @@ static __devinit int samsung_i2s_probe(struct platform_device *pdev)
}
regs_base = res->start;
- i2s_cfg = &i2s_pdata->type.i2s;
- quirks = i2s_cfg->quirks;
-
- pri_dai = i2s_alloc_dai(pdev, false);
- if (!pri_dai) {
- dev_err(&pdev->dev, "Unable to alloc I2S_pri\n");
- ret = -ENOMEM;
- goto err1;
- }
-
pri_dai->dma_playback.dma_addr = regs_base + I2STXD;
pri_dai->dma_capture.dma_addr = regs_base + I2SRXD;
pri_dai->dma_playback.client =
- (struct s3c2410_dma_client *)&pri_dai->dma_playback;
+ (struct s3c_dma_client *)&pri_dai->dma_playback;
+ pri_dai->dma_playback.ch_name = "tx";
pri_dai->dma_capture.client =
- (struct s3c2410_dma_client *)&pri_dai->dma_capture;
- pri_dai->dma_playback.channel = dma_pl_chan;
- pri_dai->dma_capture.channel = dma_cp_chan;
- pri_dai->src_clk = i2s_cfg->src_clk;
+ (struct s3c_dma_client *)&pri_dai->dma_capture;
+ pri_dai->dma_capture.ch_name = "rx";
pri_dai->dma_playback.dma_size = 4;
pri_dai->dma_capture.dma_size = 4;
pri_dai->base = regs_base;
@@ -1168,43 +1235,53 @@ static __devinit int samsung_i2s_probe(struct platform_device *pdev)
if (!sec_dai) {
dev_err(&pdev->dev, "Unable to alloc I2S_sec\n");
ret = -ENOMEM;
- goto err2;
+ goto err;
}
sec_dai->dma_playback.dma_addr = regs_base + I2STXDS;
sec_dai->dma_playback.client =
- (struct s3c2410_dma_client *)&sec_dai->dma_playback;
- /* Use iDMA always if SysDMA not provided */
- sec_dai->dma_playback.channel = dma_pl_sec_chan ? : -1;
- sec_dai->src_clk = i2s_cfg->src_clk;
+ (struct s3c_dma_client *)&sec_dai->dma_playback;
+ sec_dai->dma_playback.ch_name = "tx-sec";
+
+ if (!np) {
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 2);
+ if (res)
+ sec_dai->dma_playback.channel = res->start;
+ }
+
sec_dai->dma_playback.dma_size = 4;
sec_dai->base = regs_base;
sec_dai->quirks = quirks;
+ sec_dai->idma_playback.dma_addr = idma_addr;
sec_dai->pri_dai = pri_dai;
pri_dai->sec_dai = sec_dai;
}
- if (i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
+ if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
dev_err(&pdev->dev, "Unable to configure gpio\n");
ret = -EINVAL;
- goto err3;
+ goto err;
}
- snd_soc_register_dai(&pri_dai->pdev->dev, &pri_dai->i2s_dai_drv);
+ devm_snd_soc_register_component(&pri_dai->pdev->dev,
+ &samsung_i2s_component,
+ &pri_dai->i2s_dai_drv, 1);
+
+ pm_runtime_enable(&pdev->dev);
+
+ samsung_asoc_dma_platform_register(&pdev->dev);
return 0;
-err3:
- kfree(sec_dai);
-err2:
- kfree(pri_dai);
-err1:
- release_mem_region(regs_base, resource_size(res));
+err:
+ if (res)
+ release_mem_region(regs_base, resource_size(res));
return ret;
}
-static __devexit int samsung_i2s_remove(struct platform_device *pdev)
+static int samsung_i2s_remove(struct platform_device *pdev)
{
struct i2s_dai *i2s, *other;
+ struct resource *res;
i2s = dev_get_drvdata(&pdev->dev);
other = i2s->pri_dai ? : i2s->sec_dai;
@@ -1213,7 +1290,7 @@ static __devexit int samsung_i2s_remove(struct platform_device *pdev)
other->pri_dai = NULL;
other->sec_dai = NULL;
} else {
- struct resource *res;
+ pm_runtime_disable(&pdev->dev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res)
release_mem_region(res->start, resource_size(res));
@@ -1222,36 +1299,83 @@ static __devexit int samsung_i2s_remove(struct platform_device *pdev)
i2s->pri_dai = NULL;
i2s->sec_dai = NULL;
- kfree(i2s);
-
- snd_soc_unregister_dai(&pdev->dev);
-
return 0;
}
+static const struct samsung_i2s_dai_data i2sv3_dai_type = {
+ .dai_type = TYPE_PRI,
+ .quirks = QUIRK_NO_MUXPSR,
+};
+
+static const struct samsung_i2s_dai_data i2sv5_dai_type = {
+ .dai_type = TYPE_PRI,
+ .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR,
+};
+
+static const struct samsung_i2s_dai_data i2sv6_dai_type = {
+ .dai_type = TYPE_PRI,
+ .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+ QUIRK_SUPPORTS_TDM,
+};
+
+static const struct samsung_i2s_dai_data samsung_dai_type_pri = {
+ .dai_type = TYPE_PRI,
+};
+
+static const struct samsung_i2s_dai_data samsung_dai_type_sec = {
+ .dai_type = TYPE_SEC,
+};
+
+static struct platform_device_id samsung_i2s_driver_ids[] = {
+ {
+ .name = "samsung-i2s",
+ .driver_data = (kernel_ulong_t)&samsung_dai_type_pri,
+ }, {
+ .name = "samsung-i2s-sec",
+ .driver_data = (kernel_ulong_t)&samsung_dai_type_sec,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(platform, samsung_i2s_driver_ids);
+
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_i2s_match[] = {
+ {
+ .compatible = "samsung,s3c6410-i2s",
+ .data = &i2sv3_dai_type,
+ }, {
+ .compatible = "samsung,s5pv210-i2s",
+ .data = &i2sv5_dai_type,
+ }, {
+ .compatible = "samsung,exynos5420-i2s",
+ .data = &i2sv6_dai_type,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_i2s_match);
+#endif
+
+static const struct dev_pm_ops samsung_i2s_pm = {
+ SET_RUNTIME_PM_OPS(i2s_runtime_suspend,
+ i2s_runtime_resume, NULL)
+};
+
static struct platform_driver samsung_i2s_driver = {
.probe = samsung_i2s_probe,
.remove = samsung_i2s_remove,
+ .id_table = samsung_i2s_driver_ids,
.driver = {
.name = "samsung-i2s",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(exynos_i2s_match),
+ .pm = &samsung_i2s_pm,
},
};
-static int __init samsung_i2s_init(void)
-{
- return platform_driver_register(&samsung_i2s_driver);
-}
-module_init(samsung_i2s_init);
-
-static void __exit samsung_i2s_exit(void)
-{
- platform_driver_unregister(&samsung_i2s_driver);
-}
-module_exit(samsung_i2s_exit);
+module_platform_driver(samsung_i2s_driver);
/* Module information */
-MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
+MODULE_AUTHOR("Jaswinder Singh, <jassisinghbrar@gmail.com>");
MODULE_DESCRIPTION("Samsung I2S Interface");
MODULE_ALIAS("platform:samsung-i2s");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 00:46:43 +0000