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Diffstat (limited to 'sound/soc/samsung/i2s.c')
-rw-r--r--sound/soc/samsung/i2s.c1427
1 files changed, 946 insertions, 481 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 7a1734697434..e9964f0e010a 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1,29 +1,23 @@
-/* sound/soc/samsung/i2s.c
- *
- * ALSA SoC Audio Layer - Samsung I2S Controller driver
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd.
- * 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
- * published by the Free Software Foundation.
- */
-
+// SPDX-License-Identifier: GPL-2.0
+//
+// ALSA SoC Audio Layer - Samsung I2S Controller driver
+//
+// Copyright (c) 2010 Samsung Electronics Co. Ltd.
+// Jaswinder Singh <jassisinghbrar@gmail.com>
+
+#include <dt-bindings/sound/samsung-i2s.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/clk.h>
+#include <linux/clk-provider.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 <mach/dma.h>
-
#include <linux/platform_data/asoc-s3c.h>
#include "dma.h"
@@ -33,68 +27,116 @@
#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
-enum samsung_dai_type {
- TYPE_PRI,
- TYPE_SEC,
+#define SAMSUNG_I2S_ID_PRIMARY 1
+#define SAMSUNG_I2S_ID_SECONDARY 2
+
+struct samsung_i2s_variant_regs {
+ unsigned int bfs_off;
+ unsigned int rfs_off;
+ unsigned int sdf_off;
+ unsigned int txr_off;
+ unsigned int rclksrc_off;
+ unsigned int mss_off;
+ unsigned int cdclkcon_off;
+ unsigned int lrp_off;
+ unsigned int bfs_mask;
+ unsigned int rfs_mask;
+ unsigned int ftx0cnt_off;
};
struct samsung_i2s_dai_data {
- int dai_type;
+ u32 quirks;
+ unsigned int pcm_rates;
+ const struct samsung_i2s_variant_regs *i2s_variant_regs;
+ void (*fixup_early)(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+ void (*fixup_late)(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
};
struct i2s_dai {
/* Platform device for this DAI */
struct platform_device *pdev;
- /* IOREMAP'd SFRs */
- void __iomem *addr;
- /* Physical base address of SFRs */
- u32 base;
- /* Rate of RCLK source clock */
- unsigned long rclk_srcrate;
- /* Frame Clock */
+
+ /* Frame clock */
unsigned frmclk;
/*
- * Specifically requested RCLK,BCLK by MACHINE Driver.
+ * Specifically requested RCLK, BCLK by machine driver.
* 0 indicates CPU driver is free to choose any value.
*/
unsigned rfs, bfs;
- /* I2S Controller's core clock */
- struct clk *clk;
- /* Clock for generating I2S signals */
- struct clk *op_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 */
struct i2s_dai *sec_dai;
-#define DAI_OPENED (1 << 0) /* Dai is opened */
-#define DAI_MANAGER (1 << 1) /* Dai is the manager */
+
+#define DAI_OPENED (1 << 0) /* DAI is opened */
+#define DAI_MANAGER (1 << 1) /* DAI is the manager */
unsigned mode;
+
/* Driver for this DAI */
- struct snd_soc_dai_driver i2s_dai_drv;
+ struct snd_soc_dai_driver *drv;
+
/* 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 */
+ struct snd_dmaengine_dai_dma_data dma_playback;
+ struct snd_dmaengine_dai_dma_data dma_capture;
+ struct snd_dmaengine_dai_dma_data idma_playback;
+ dma_filter_fn filter;
+
+ struct samsung_i2s_priv *priv;
};
-/* Lock for cross i/f checks */
-static DEFINE_SPINLOCK(lock);
+struct samsung_i2s_priv {
+ struct platform_device *pdev;
+ struct platform_device *pdev_sec;
-/* If this is the 'overlay' stereo DAI */
-static inline bool is_secondary(struct i2s_dai *i2s)
-{
- return i2s->pri_dai ? true : false;
-}
+ /* Lock for cross interface checks */
+ spinlock_t pcm_lock;
-/* If operating in SoC-Slave mode */
-static inline bool is_slave(struct i2s_dai *i2s)
+ /* CPU DAIs and their corresponding drivers */
+ struct i2s_dai *dai;
+ struct snd_soc_dai_driver *dai_drv;
+ int num_dais;
+
+ /* The I2S controller's core clock */
+ struct clk *clk;
+
+ /* Clock for generating I2S signals */
+ struct clk *op_clk;
+
+ /* Rate of RCLK source clock */
+ unsigned long rclk_srcrate;
+
+ /* Cache of selected I2S registers for system suspend */
+ u32 suspend_i2smod;
+ u32 suspend_i2scon;
+ u32 suspend_i2spsr;
+
+ const struct samsung_i2s_variant_regs *variant_regs;
+ void (*fixup_early)(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+ void (*fixup_late)(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+ u32 quirks;
+
+ /* The clock provider's data */
+ struct clk *clk_table[3];
+ struct clk_onecell_data clk_data;
+
+ /* Spinlock protecting member fields below */
+ spinlock_t lock;
+
+ /* Memory mapped SFR region */
+ void __iomem *addr;
+
+ /* A flag indicating the I2S slave mode operation */
+ bool slave_mode;
+};
+
+/* Returns true if this is the 'overlay' stereo DAI */
+static inline bool is_secondary(struct i2s_dai *i2s)
{
- return (readl(i2s->addr + I2SMOD) & MOD_SLAVE) ? true : false;
+ return i2s->drv->id == SAMSUNG_I2S_ID_SECONDARY;
}
/* If this interface of the controller is transmitting data */
@@ -105,7 +147,7 @@ static inline bool tx_active(struct i2s_dai *i2s)
if (!i2s)
return false;
- active = readl(i2s->addr + I2SCON);
+ active = readl(i2s->priv->addr + I2SCON);
if (is_secondary(i2s))
active &= CON_TXSDMA_ACTIVE;
@@ -115,10 +157,16 @@ static inline bool tx_active(struct i2s_dai *i2s)
return active ? true : false;
}
+/* Return pointer to the other DAI */
+static inline struct i2s_dai *get_other_dai(struct i2s_dai *i2s)
+{
+ return i2s->pri_dai ? : i2s->sec_dai;
+}
+
/* If the other interface of the controller is transmitting data */
static inline bool other_tx_active(struct i2s_dai *i2s)
{
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct i2s_dai *other = get_other_dai(i2s);
return tx_active(other);
}
@@ -137,7 +185,7 @@ static inline bool rx_active(struct i2s_dai *i2s)
if (!i2s)
return false;
- active = readl(i2s->addr + I2SCON) & CON_RXDMA_ACTIVE;
+ active = readl(i2s->priv->addr + I2SCON) & CON_RXDMA_ACTIVE;
return active ? true : false;
}
@@ -145,7 +193,7 @@ static inline bool rx_active(struct i2s_dai *i2s)
/* If the other interface of the controller is receiving data */
static inline bool other_rx_active(struct i2s_dai *i2s)
{
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct i2s_dai *other = get_other_dai(i2s);
return rx_active(other);
}
@@ -176,7 +224,9 @@ static inline bool any_active(struct i2s_dai *i2s)
static inline struct i2s_dai *to_info(struct snd_soc_dai *dai)
{
- return snd_soc_dai_get_drvdata(dai);
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+
+ return &priv->dai[dai->id - 1];
}
static inline bool is_opened(struct i2s_dai *i2s)
@@ -198,9 +248,17 @@ 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;
+ struct samsung_i2s_priv *priv = i2s->priv;
+ u32 rfs;
+
+ rfs = readl(priv->addr + I2SMOD) >> priv->variant_regs->rfs_off;
+ rfs &= priv->variant_regs->rfs_mask;
switch (rfs) {
+ case 7: return 192;
+ case 6: return 96;
+ case 5: return 128;
+ case 4: return 64;
case 3: return 768;
case 2: return 384;
case 1: return 512;
@@ -211,34 +269,57 @@ static inline unsigned get_rfs(struct i2s_dai *i2s)
/* Write RCLK of I2S (in multiples of LRCLK) */
static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
{
- u32 mod = readl(i2s->addr + I2SMOD);
+ struct samsung_i2s_priv *priv = i2s->priv;
+ u32 mod = readl(priv->addr + I2SMOD);
+ int rfs_shift = priv->variant_regs->rfs_off;
- mod &= ~MOD_RCLK_MASK;
+ mod &= ~(priv->variant_regs->rfs_mask << rfs_shift);
switch (rfs) {
+ case 192:
+ mod |= (EXYNOS7_MOD_RCLK_192FS << rfs_shift);
+ break;
+ case 96:
+ mod |= (EXYNOS7_MOD_RCLK_96FS << rfs_shift);
+ break;
+ case 128:
+ mod |= (EXYNOS7_MOD_RCLK_128FS << rfs_shift);
+ break;
+ case 64:
+ mod |= (EXYNOS7_MOD_RCLK_64FS << rfs_shift);
+ break;
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;
}
- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
}
-/* Read Bit-Clock of I2S (in multiples of LRCLK) */
+/* 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;
+ struct samsung_i2s_priv *priv = i2s->priv;
+ u32 bfs;
+
+ bfs = readl(priv->addr + I2SMOD) >> priv->variant_regs->bfs_off;
+ bfs &= priv->variant_regs->bfs_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;
@@ -246,38 +327,62 @@ static inline unsigned get_bfs(struct i2s_dai *i2s)
}
}
-/* Write Bit-Clock of I2S (in multiples of LRCLK) */
+/* Write bit-clock of I2S (in multiples of LRCLK) */
static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs)
{
- u32 mod = readl(i2s->addr + I2SMOD);
+ struct samsung_i2s_priv *priv = i2s->priv;
+ u32 mod = readl(priv->addr + I2SMOD);
+ int tdm = priv->quirks & QUIRK_SUPPORTS_TDM;
+ int bfs_shift = priv->variant_regs->bfs_off;
+
+ /* Non-TDM I2S controllers do not support BCLK > 48 * FS */
+ if (!tdm && bfs > 48) {
+ dev_err(&i2s->pdev->dev, "Unsupported BCLK divider\n");
+ return;
+ }
- mod &= ~MOD_BCLK_MASK;
+ mod &= ~(priv->variant_regs->bfs_mask << bfs_shift);
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");
return;
}
- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
}
-/* Sample-Size */
+/* Sample size */
static inline int get_blc(struct i2s_dai *i2s)
{
- int blc = readl(i2s->addr + I2SMOD);
+ int blc = readl(i2s->priv->addr + I2SMOD);
blc = (blc >> 13) & 0x3;
@@ -288,12 +393,14 @@ static inline int get_blc(struct i2s_dai *i2s)
}
}
-/* TX Channel Control */
+/* TX channel control */
static void i2s_txctrl(struct i2s_dai *i2s, int on)
{
- void __iomem *addr = i2s->addr;
+ struct samsung_i2s_priv *priv = i2s->priv;
+ void __iomem *addr = priv->addr;
+ int txr_off = priv->variant_regs->txr_off;
u32 con = readl(addr + I2SCON);
- u32 mod = readl(addr + I2SMOD) & ~MOD_MASK;
+ u32 mod = readl(addr + I2SMOD) & ~(3 << txr_off);
if (on) {
con |= CON_ACTIVE;
@@ -308,9 +415,9 @@ static void i2s_txctrl(struct i2s_dai *i2s, int on)
}
if (any_rx_active(i2s))
- mod |= MOD_TXRX;
+ mod |= 2 << txr_off;
else
- mod |= MOD_TXONLY;
+ mod |= 0 << txr_off;
} else {
if (is_secondary(i2s)) {
con |= CON_TXSDMA_PAUSE;
@@ -328,7 +435,7 @@ static void i2s_txctrl(struct i2s_dai *i2s, int on)
con |= CON_TXCH_PAUSE;
if (any_rx_active(i2s))
- mod |= MOD_RXONLY;
+ mod |= 1 << txr_off;
else
con &= ~CON_ACTIVE;
}
@@ -340,24 +447,26 @@ static void i2s_txctrl(struct i2s_dai *i2s, int on)
/* RX Channel Control */
static void i2s_rxctrl(struct i2s_dai *i2s, int on)
{
- void __iomem *addr = i2s->addr;
+ struct samsung_i2s_priv *priv = i2s->priv;
+ void __iomem *addr = priv->addr;
+ int txr_off = priv->variant_regs->txr_off;
u32 con = readl(addr + I2SCON);
- u32 mod = readl(addr + I2SMOD) & ~MOD_MASK;
+ u32 mod = readl(addr + I2SMOD) & ~(3 << txr_off);
if (on) {
con |= CON_RXDMA_ACTIVE | CON_ACTIVE;
con &= ~(CON_RXDMA_PAUSE | CON_RXCH_PAUSE);
if (any_tx_active(i2s))
- mod |= MOD_TXRX;
+ mod |= 2 << txr_off;
else
- mod |= MOD_RXONLY;
+ mod |= 1 << txr_off;
} else {
con |= CON_RXDMA_PAUSE | CON_RXCH_PAUSE;
con &= ~CON_RXDMA_ACTIVE;
if (any_tx_active(i2s))
- mod |= MOD_TXONLY;
+ mod |= 0 << txr_off;
else
con &= ~CON_ACTIVE;
}
@@ -376,9 +485,9 @@ static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush)
return;
if (is_secondary(i2s))
- fic = i2s->addr + I2SFICS;
+ fic = i2s->priv->addr + I2SFICS;
else
- fic = i2s->addr + I2SFIC;
+ fic = i2s->priv->addr + I2SFIC;
/* Flush the FIFO */
writel(readl(fic) | flush, fic);
@@ -391,120 +500,159 @@ static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush)
writel(readl(fic) & ~flush, fic);
}
-static int i2s_set_sysclk(struct snd_soc_dai *dai,
- int clk_id, unsigned int rfs, int dir)
+static int i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int rfs,
+ int dir)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
- u32 mod = readl(i2s->addr + I2SMOD);
+ struct i2s_dai *other = get_other_dai(i2s);
+ const struct samsung_i2s_variant_regs *i2s_regs = priv->variant_regs;
+ unsigned int cdcon_mask = 1 << i2s_regs->cdclkcon_off;
+ unsigned int rsrc_mask = 1 << i2s_regs->rclksrc_off;
+ u32 mod, mask, val = 0;
+ unsigned long flags;
+ int ret = 0;
+
+ pm_runtime_get_sync(dai->dev);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ mod = readl(priv->addr + I2SMOD);
+ spin_unlock_irqrestore(&priv->lock, flags);
switch (clk_id) {
+ case SAMSUNG_I2S_OPCLK:
+ mask = MOD_OPCLK_MASK;
+ val = (dir << MOD_OPCLK_SHIFT) & MOD_OPCLK_MASK;
+ break;
case SAMSUNG_I2S_CDCLK:
+ mask = 1 << i2s_regs->cdclkcon_off;
/* Shouldn't matter in GATING(CLOCK_IN) mode */
if (dir == SND_SOC_CLOCK_IN)
rfs = 0;
- if ((rfs && other->rfs && (other->rfs != rfs)) ||
+ if ((rfs && other && other->rfs && (other->rfs != rfs)) ||
(any_active(i2s) &&
(((dir == SND_SOC_CLOCK_IN)
- && !(mod & MOD_CDCLKCON)) ||
+ && !(mod & cdcon_mask)) ||
((dir == SND_SOC_CLOCK_OUT)
- && (mod & MOD_CDCLKCON))))) {
+ && (mod & cdcon_mask))))) {
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto err;
}
if (dir == SND_SOC_CLOCK_IN)
- mod |= MOD_CDCLKCON;
- else
- mod &= ~MOD_CDCLKCON;
+ val = 1 << i2s_regs->cdclkcon_off;
i2s->rfs = rfs;
break;
case SAMSUNG_I2S_RCLKSRC_0: /* clock corrsponding to IISMOD[10] := 0 */
case SAMSUNG_I2S_RCLKSRC_1: /* clock corrsponding to IISMOD[10] := 1 */
- if ((i2s->quirks & QUIRK_NO_MUXPSR)
+ mask = 1 << i2s_regs->rclksrc_off;
+
+ if ((priv->quirks & QUIRK_NO_MUXPSR)
|| (clk_id == SAMSUNG_I2S_RCLKSRC_0))
clk_id = 0;
else
clk_id = 1;
if (!any_active(i2s)) {
- if (i2s->op_clk) {
- if ((clk_id && !(mod & MOD_IMS_SYSMUX)) ||
- (!clk_id && (mod & MOD_IMS_SYSMUX))) {
- clk_disable_unprepare(i2s->op_clk);
- clk_put(i2s->op_clk);
+ if (priv->op_clk && !IS_ERR(priv->op_clk)) {
+ if ((clk_id && !(mod & rsrc_mask)) ||
+ (!clk_id && (mod & rsrc_mask))) {
+ clk_disable_unprepare(priv->op_clk);
+ clk_put(priv->op_clk);
} else {
- i2s->rclk_srcrate =
- clk_get_rate(i2s->op_clk);
- return 0;
+ priv->rclk_srcrate =
+ clk_get_rate(priv->op_clk);
+ goto done;
}
}
if (clk_id)
- i2s->op_clk = clk_get(&i2s->pdev->dev,
+ priv->op_clk = clk_get(&i2s->pdev->dev,
"i2s_opclk1");
else
- i2s->op_clk = clk_get(&i2s->pdev->dev,
+ priv->op_clk = clk_get(&i2s->pdev->dev,
"i2s_opclk0");
- clk_prepare_enable(i2s->op_clk);
- i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
- /* Over-ride the other's */
- if (other) {
- other->op_clk = i2s->op_clk;
- other->rclk_srcrate = i2s->rclk_srcrate;
+ if (WARN_ON(IS_ERR(priv->op_clk))) {
+ ret = PTR_ERR(priv->op_clk);
+ priv->op_clk = NULL;
+ goto err;
+ }
+
+ ret = clk_prepare_enable(priv->op_clk);
+ if (ret) {
+ clk_put(priv->op_clk);
+ priv->op_clk = NULL;
+ goto err;
}
- } else if ((!clk_id && (mod & MOD_IMS_SYSMUX))
- || (clk_id && !(mod & MOD_IMS_SYSMUX))) {
+ priv->rclk_srcrate = clk_get_rate(priv->op_clk);
+
+ } else if ((!clk_id && (mod & rsrc_mask))
+ || (clk_id && !(mod & rsrc_mask))) {
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto err;
} else {
/* Call can't be on the active DAI */
- i2s->op_clk = other->op_clk;
- i2s->rclk_srcrate = other->rclk_srcrate;
- return 0;
+ goto done;
}
- if (clk_id == 0)
- mod &= ~MOD_IMS_SYSMUX;
- else
- mod |= MOD_IMS_SYSMUX;
+ if (clk_id == 1)
+ val = 1 << i2s_regs->rclksrc_off;
break;
-
default:
dev_err(&i2s->pdev->dev, "We don't serve that!\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err;
}
- writel(mod, i2s->addr + I2SMOD);
+ spin_lock_irqsave(&priv->lock, flags);
+ mod = readl(priv->addr + I2SMOD);
+ mod = (mod & ~mask) | val;
+ writel(mod, priv->addr + I2SMOD);
+ spin_unlock_irqrestore(&priv->lock, flags);
+done:
+ pm_runtime_put(dai->dev);
return 0;
+err:
+ pm_runtime_put(dai->dev);
+ return ret;
}
-static int i2s_set_fmt(struct snd_soc_dai *dai,
- unsigned int fmt)
+static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- u32 mod = readl(i2s->addr + I2SMOD);
- u32 tmp = 0;
+ int lrp_shift, sdf_shift, sdf_mask, lrp_rlow, mod_slave;
+ u32 mod, tmp = 0;
+ unsigned long flags;
+
+ lrp_shift = priv->variant_regs->lrp_off;
+ sdf_shift = priv->variant_regs->sdf_off;
+ mod_slave = 1 << priv->variant_regs->mss_off;
+
+ 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");
@@ -519,23 +667,27 @@ 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");
return -EINVAL;
}
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- tmp |= MOD_SLAVE;
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_BC_FC:
+ tmp |= mod_slave;
break;
- case SND_SOC_DAIFMT_CBS_CFS:
- /* Set default source clock in Master mode */
- if (i2s->rclk_srcrate == 0)
+ case SND_SOC_DAIFMT_BP_FP:
+ /*
+ * Set default source clock in Master mode, only when the
+ * CLK_I2S_RCLK_SRC clock is not exposed so we ensure any
+ * clock configuration assigned in DT is not overwritten.
+ */
+ if (priv->rclk_srcrate == 0 && priv->clk_data.clks == NULL)
i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0,
0, SND_SOC_CLOCK_IN);
break;
@@ -544,17 +696,28 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
return -EINVAL;
}
+ pm_runtime_get_sync(dai->dev);
+ spin_lock_irqsave(&priv->lock, flags);
+ mod = readl(priv->addr + I2SMOD);
+ /*
+ * 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)) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ pm_runtime_put(dai->dev);
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);
+ writel(mod, priv->addr + I2SMOD);
+ priv->slave_mode = (mod & mod_slave);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ pm_runtime_put(dai->dev);
return 0;
}
@@ -562,29 +725,35 @@ static int i2s_set_fmt(struct snd_soc_dai *dai,
static int i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- u32 mod = readl(i2s->addr + I2SMOD);
+ u32 mod, mask = 0, val = 0;
+ struct clk *rclksrc;
+ unsigned long flags;
+
+ WARN_ON(!pm_runtime_active(dai->dev));
if (!is_secondary(i2s))
- mod &= ~(MOD_DC2_EN | MOD_DC1_EN);
+ mask |= (MOD_DC2_EN | MOD_DC1_EN);
switch (params_channels(params)) {
case 6:
- mod |= MOD_DC2_EN;
+ val |= MOD_DC2_EN;
+ fallthrough;
case 4:
- mod |= MOD_DC1_EN;
+ val |= MOD_DC1_EN;
break;
case 2:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- i2s->dma_playback.dma_size = 4;
+ i2s->dma_playback.addr_width = 4;
else
- i2s->dma_capture.dma_size = 4;
+ i2s->dma_capture.addr_width = 4;
break;
case 1:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- i2s->dma_playback.dma_size = 2;
+ i2s->dma_playback.addr_width = 2;
else
- i2s->dma_capture.dma_size = 2;
+ i2s->dma_capture.addr_width = 2;
break;
default:
@@ -594,66 +763,73 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
}
if (is_secondary(i2s))
- mod &= ~MOD_BLCS_MASK;
+ mask |= MOD_BLCS_MASK;
else
- mod &= ~MOD_BLCP_MASK;
+ mask |= MOD_BLCP_MASK;
if (is_manager(i2s))
- mod &= ~MOD_BLC_MASK;
+ mask |= 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;
+ val |= MOD_BLCS_8BIT;
else
- mod |= MOD_BLCP_8BIT;
+ val |= MOD_BLCP_8BIT;
if (is_manager(i2s))
- mod |= MOD_BLC_8BIT;
+ val |= MOD_BLC_8BIT;
break;
- case SNDRV_PCM_FORMAT_S16_LE:
+ case 16:
if (is_secondary(i2s))
- mod |= MOD_BLCS_16BIT;
+ val |= MOD_BLCS_16BIT;
else
- mod |= MOD_BLCP_16BIT;
+ val |= MOD_BLCP_16BIT;
if (is_manager(i2s))
- mod |= MOD_BLC_16BIT;
+ val |= MOD_BLC_16BIT;
break;
- case SNDRV_PCM_FORMAT_S24_LE:
+ case 24:
if (is_secondary(i2s))
- mod |= MOD_BLCS_24BIT;
+ val |= MOD_BLCS_24BIT;
else
- mod |= MOD_BLCP_24BIT;
+ val |= MOD_BLCP_24BIT;
if (is_manager(i2s))
- mod |= MOD_BLC_24BIT;
+ val |= MOD_BLC_24BIT;
break;
default:
dev_err(&i2s->pdev->dev, "Format(%d) not supported\n",
params_format(params));
return -EINVAL;
}
- 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);
+ spin_lock_irqsave(&priv->lock, flags);
+ mod = readl(priv->addr + I2SMOD);
+ mod = (mod & ~mask) | val;
+ writel(mod, priv->addr + I2SMOD);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
i2s->frmclk = params_rate(params);
+ rclksrc = priv->clk_table[CLK_I2S_RCLK_SRC];
+ if (rclksrc && !IS_ERR(rclksrc))
+ priv->rclk_srcrate = clk_get_rate(rclksrc);
+
return 0;
}
-/* We set constraints on the substream acc to the version of I2S */
+/* We set constraints on the substream according to the version of I2S */
static int i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct i2s_dai *other = get_other_dai(i2s);
unsigned long flags;
- spin_lock_irqsave(&lock, flags);
+ pm_runtime_get_sync(dai->dev);
+
+ spin_lock_irqsave(&priv->pcm_lock, flags);
i2s->mode |= DAI_OPENED;
@@ -662,13 +838,10 @@ 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);
+ if (!any_active(i2s) && (priv->quirks & QUIRK_NEED_RSTCLR))
+ writel(CON_RSTCLR, i2s->priv->addr + I2SCON);
- spin_unlock_irqrestore(&lock, flags);
+ spin_unlock_irqrestore(&priv->pcm_lock, flags);
return 0;
}
@@ -676,11 +849,12 @@ static int i2s_startup(struct snd_pcm_substream *substream,
static void i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct i2s_dai *other = get_other_dai(i2s);
unsigned long flags;
- spin_lock_irqsave(&lock, flags);
+ spin_lock_irqsave(&priv->pcm_lock, flags);
i2s->mode &= ~DAI_OPENED;
i2s->mode &= ~DAI_MANAGER;
@@ -692,17 +866,15 @@ static void i2s_shutdown(struct snd_pcm_substream *substream,
i2s->rfs = 0;
i2s->bfs = 0;
- spin_unlock_irqrestore(&lock, flags);
+ spin_unlock_irqrestore(&priv->pcm_lock, flags);
- /* Gate CDCLK by default */
- if (!is_opened(other))
- i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
- 0, SND_SOC_CLOCK_IN);
+ pm_runtime_put(dai->dev);
}
static int config_setup(struct i2s_dai *i2s)
{
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct samsung_i2s_priv *priv = i2s->priv;
+ struct i2s_dai *other = get_other_dai(i2s);
unsigned rfs, bfs, blc;
u32 psr;
@@ -742,19 +914,19 @@ 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);
- if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
- psr = i2s->rclk_srcrate / i2s->frmclk / rfs;
- writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);
+ /* Don't bother with PSR in Slave mode */
+ if (priv->slave_mode)
+ return 0;
+
+ if (!(priv->quirks & QUIRK_NO_MUXPSR)) {
+ psr = priv->rclk_srcrate / i2s->frmclk / rfs;
+ writel(((psr - 1) << 8) | PSR_PSREN, priv->addr + I2SPSR);
dev_dbg(&i2s->pdev->dev,
"RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n",
- i2s->rclk_srcrate, psr, rfs, bfs);
+ priv->rclk_srcrate, psr, rfs, bfs);
}
return 0;
@@ -763,33 +935,42 @@ static int config_setup(struct i2s_dai *i2s)
static int i2s_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct i2s_dai *i2s = to_info(rtd->cpu_dai);
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct i2s_dai *i2s = to_info(snd_soc_rtd_to_cpu(rtd, 0));
unsigned long flags;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- local_irq_save(flags);
+ pm_runtime_get_sync(dai->dev);
+
+ if (priv->fixup_early)
+ priv->fixup_early(substream, dai);
+
+ spin_lock_irqsave(&priv->lock, flags);
if (config_setup(i2s)) {
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&priv->lock, flags);
return -EINVAL;
}
+ if (priv->fixup_late)
+ priv->fixup_late(substream, dai);
+
if (capture)
i2s_rxctrl(i2s, 1);
else
i2s_txctrl(i2s, 1);
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&priv->lock, flags);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- local_irq_save(flags);
+ spin_lock_irqsave(&priv->lock, flags);
if (capture) {
i2s_rxctrl(i2s, 0);
@@ -799,7 +980,8 @@ static int i2s_trigger(struct snd_pcm_substream *substream,
i2s_fifo(i2s, FIC_TXFLUSH);
}
- local_irq_restore(flags);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ pm_runtime_put(dai->dev);
break;
}
@@ -810,17 +992,20 @@ static int i2s_set_clkdiv(struct snd_soc_dai *dai,
int div_id, int div)
{
struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct i2s_dai *other = get_other_dai(i2s);
switch (div_id) {
case SAMSUNG_I2S_DIV_BCLK:
+ pm_runtime_get_sync(dai->dev);
if ((any_active(i2s) && div && (get_bfs(i2s) != div))
|| (other && other->bfs && (other->bfs != div))) {
+ pm_runtime_put(dai->dev);
dev_err(&i2s->pdev->dev,
"%s:%d Other DAI busy\n", __func__, __LINE__);
return -EAGAIN;
}
i2s->bfs = div;
+ pm_runtime_put(dai->dev);
break;
default:
dev_err(&i2s->pdev->dev,
@@ -834,45 +1019,32 @@ static int i2s_set_clkdiv(struct snd_soc_dai *dai,
static snd_pcm_sframes_t
i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- u32 reg = readl(i2s->addr + I2SFIC);
+ u32 reg = readl(priv->addr + I2SFIC);
snd_pcm_sframes_t delay;
+ WARN_ON(!pm_runtime_active(dai->dev));
+
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
delay = FIC_RXCOUNT(reg);
else if (is_secondary(i2s))
- delay = FICS_TXCOUNT(readl(i2s->addr + I2SFICS));
+ delay = FICS_TXCOUNT(readl(priv->addr + I2SFICS));
else
- delay = FIC_TXCOUNT(reg);
+ delay = (reg >> priv->variant_regs->ftx0cnt_off) & 0x7f;
return delay;
}
#ifdef CONFIG_PM
-static int i2s_suspend(struct snd_soc_dai *dai)
+static int i2s_suspend(struct snd_soc_component *component)
{
- struct i2s_dai *i2s = to_info(dai);
-
- if (dai->active) {
- i2s->suspend_i2smod = readl(i2s->addr + I2SMOD);
- i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
- i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
- }
-
- return 0;
+ return pm_runtime_force_suspend(component->dev);
}
-static int i2s_resume(struct snd_soc_dai *dai)
+static int i2s_resume(struct snd_soc_component *component)
{
- struct i2s_dai *i2s = to_info(dai);
-
- if (dai->active) {
- writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
- writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);
- writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR);
- }
-
- return 0;
+ return pm_runtime_force_resume(component->dev);
}
#else
#define i2s_suspend NULL
@@ -881,78 +1053,73 @@ static int i2s_resume(struct snd_soc_dai *dai)
static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
{
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ struct i2s_dai *other = get_other_dai(i2s);
+ unsigned long flags;
- if (other && other->clk) /* If this is probe on secondary */
- goto probe_exit;
+ pm_runtime_get_sync(dai->dev);
- i2s->addr = ioremap(i2s->base, 0x100);
- if (i2s->addr == NULL) {
- dev_err(&i2s->pdev->dev, "cannot ioremap registers\n");
- return -ENXIO;
- }
+ if (is_secondary(i2s)) {
+ /* If this is probe on the secondary DAI */
+ snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, NULL);
+ } else {
+ snd_soc_dai_init_dma_data(dai, &i2s->dma_playback,
+ &i2s->dma_capture);
- i2s->clk = clk_get(&i2s->pdev->dev, "iis");
- if (IS_ERR(i2s->clk)) {
- dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n");
- iounmap(i2s->addr);
- return -ENOENT;
- }
- clk_prepare_enable(i2s->clk);
+ if (priv->quirks & QUIRK_NEED_RSTCLR)
+ writel(CON_RSTCLR, priv->addr + I2SCON);
- if (other) {
- other->addr = i2s->addr;
- other->clk = i2s->clk;
+ if (priv->quirks & QUIRK_SUPPORTS_IDMA)
+ idma_reg_addr_init(priv->addr,
+ other->idma_playback.addr);
}
- 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;
+
+ spin_lock_irqsave(&priv->lock, flags);
i2s_txctrl(i2s, 0);
i2s_rxctrl(i2s, 0);
i2s_fifo(i2s, FIC_TXFLUSH);
i2s_fifo(other, FIC_TXFLUSH);
i2s_fifo(i2s, FIC_RXFLUSH);
+ spin_unlock_irqrestore(&priv->lock, flags);
/* Gate CDCLK by default */
if (!is_opened(other))
i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
0, SND_SOC_CLOCK_IN);
+ pm_runtime_put(dai->dev);
return 0;
}
static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
{
- struct i2s_dai *i2s = snd_soc_dai_get_drvdata(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
-
- if (!other || !other->clk) {
-
- if (i2s->quirks & QUIRK_NEED_RSTCLR)
- writel(0, i2s->addr + I2SCON);
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+ struct i2s_dai *i2s = to_info(dai);
+ unsigned long flags;
- clk_disable_unprepare(i2s->clk);
- clk_put(i2s->clk);
+ pm_runtime_get_sync(dai->dev);
- iounmap(i2s->addr);
+ if (!is_secondary(i2s)) {
+ if (priv->quirks & QUIRK_NEED_RSTCLR) {
+ spin_lock_irqsave(&priv->lock, flags);
+ writel(0, priv->addr + I2SCON);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
}
- i2s->clk = NULL;
+ pm_runtime_put(dai->dev);
return 0;
}
static const struct snd_soc_dai_ops samsung_i2s_dai_ops = {
+ .probe = samsung_i2s_dai_probe,
+ .remove = samsung_i2s_dai_remove,
.trigger = i2s_trigger,
.hw_params = i2s_hw_params,
.set_fmt = i2s_set_fmt,
@@ -963,300 +1130,600 @@ static const struct snd_soc_dai_ops samsung_i2s_dai_ops = {
.delay = i2s_delay,
};
+static const struct snd_soc_dapm_widget samsung_i2s_widgets[] = {
+ /* Backend DAI */
+ SND_SOC_DAPM_AIF_OUT("Mixer DAI TX", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("Mixer DAI RX", NULL, 0, SND_SOC_NOPM, 0, 0),
+
+ /* Playback Mixer */
+ SND_SOC_DAPM_MIXER("Playback Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route samsung_i2s_dapm_routes[] = {
+ { "Playback Mixer", NULL, "Primary Playback" },
+ { "Playback Mixer", NULL, "Secondary Playback" },
+
+ { "Mixer DAI TX", NULL, "Playback Mixer" },
+ { "Primary Capture", NULL, "Mixer DAI RX" },
+};
+
static const struct snd_soc_component_driver samsung_i2s_component = {
- .name = "samsung-i2s",
+ .name = "samsung-i2s",
+
+ .dapm_widgets = samsung_i2s_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(samsung_i2s_widgets),
+
+ .dapm_routes = samsung_i2s_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(samsung_i2s_dapm_routes),
+
+ .suspend = i2s_suspend,
+ .resume = i2s_resume,
+
+ .legacy_dai_naming = 1,
};
-#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 int i2s_alloc_dais(struct samsung_i2s_priv *priv,
+ const struct samsung_i2s_dai_data *i2s_dai_data,
+ int num_dais)
+{
+ static const char *dai_names[] = { "samsung-i2s", "samsung-i2s-sec" };
+ static const char *stream_names[] = { "Primary Playback",
+ "Secondary Playback" };
+ struct snd_soc_dai_driver *dai_drv;
+ int i;
+
+ priv->dai = devm_kcalloc(&priv->pdev->dev, num_dais,
+ sizeof(struct i2s_dai), GFP_KERNEL);
+ if (!priv->dai)
+ return -ENOMEM;
+
+ priv->dai_drv = devm_kcalloc(&priv->pdev->dev, num_dais,
+ sizeof(*dai_drv), GFP_KERNEL);
+ if (!priv->dai_drv)
+ return -ENOMEM;
+
+ for (i = 0; i < num_dais; i++) {
+ dai_drv = &priv->dai_drv[i];
+
+ dai_drv->symmetric_rate = 1;
+ dai_drv->ops = &samsung_i2s_dai_ops;
+
+ dai_drv->playback.channels_min = 1;
+ dai_drv->playback.channels_max = 2;
+ dai_drv->playback.rates = i2s_dai_data->pcm_rates;
+ dai_drv->playback.formats = SAMSUNG_I2S_FMTS;
+ dai_drv->playback.stream_name = stream_names[i];
+
+ dai_drv->id = i + 1;
+ dai_drv->name = dai_names[i];
-#define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
- SNDRV_PCM_FMTBIT_S16_LE | \
- SNDRV_PCM_FMTBIT_S24_LE)
+ priv->dai[i].drv = &priv->dai_drv[i];
+ priv->dai[i].pdev = priv->pdev;
+ }
+
+ /* Initialize capture only for the primary DAI */
+ dai_drv = &priv->dai_drv[SAMSUNG_I2S_ID_PRIMARY - 1];
+
+ dai_drv->capture.channels_min = 1;
+ dai_drv->capture.channels_max = 2;
+ dai_drv->capture.rates = i2s_dai_data->pcm_rates;
+ dai_drv->capture.formats = SAMSUNG_I2S_FMTS;
+ dai_drv->capture.stream_name = "Primary Capture";
+
+ return 0;
+}
+
+static int i2s_runtime_suspend(struct device *dev)
+{
+ struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
-static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
+ priv->suspend_i2smod = readl(priv->addr + I2SMOD);
+ priv->suspend_i2scon = readl(priv->addr + I2SCON);
+ priv->suspend_i2spsr = readl(priv->addr + I2SPSR);
+
+ clk_disable_unprepare(priv->op_clk);
+ clk_disable_unprepare(priv->clk);
+
+ return 0;
+}
+
+static int i2s_runtime_resume(struct device *dev)
{
- struct i2s_dai *i2s;
+ struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
int ret;
- i2s = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dai), GFP_KERNEL);
- if (i2s == NULL)
- return NULL;
-
- i2s->pdev = pdev;
- i2s->pri_dai = NULL;
- i2s->sec_dai = NULL;
- i2s->i2s_dai_drv.symmetric_rates = 1;
- i2s->i2s_dai_drv.probe = samsung_i2s_dai_probe;
- i2s->i2s_dai_drv.remove = samsung_i2s_dai_remove;
- 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_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 = 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_alloc("samsung-i2s-sec", -1);
- if (IS_ERR(i2s->pdev))
- return NULL;
-
- platform_set_drvdata(i2s->pdev, i2s);
- ret = platform_device_add(i2s->pdev);
- if (ret < 0)
- return NULL;
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
+
+ if (priv->op_clk) {
+ ret = clk_prepare_enable(priv->op_clk);
+ if (ret) {
+ clk_disable_unprepare(priv->clk);
+ return ret;
+ }
}
- return i2s;
+ writel(priv->suspend_i2scon, priv->addr + I2SCON);
+ writel(priv->suspend_i2smod, priv->addr + I2SMOD);
+ writel(priv->suspend_i2spsr, priv->addr + I2SPSR);
+
+ return 0;
}
-static const struct of_device_id exynos_i2s_match[];
+static void i2s_unregister_clocks(struct samsung_i2s_priv *priv)
+{
+ int i;
-static inline int samsung_i2s_get_driver_data(struct platform_device *pdev)
+ for (i = 0; i < priv->clk_data.clk_num; i++) {
+ if (!IS_ERR(priv->clk_table[i]))
+ clk_unregister(priv->clk_table[i]);
+ }
+}
+
+static void i2s_unregister_clock_provider(struct samsung_i2s_priv *priv)
{
-#ifdef CONFIG_OF
- struct samsung_i2s_dai_data *data;
- if (pdev->dev.of_node) {
- const struct of_device_id *match;
- match = of_match_node(exynos_i2s_match, pdev->dev.of_node);
- data = (struct samsung_i2s_dai_data *) match->data;
- return data->dai_type;
- } else
-#endif
- return platform_get_device_id(pdev)->driver_data;
+ of_clk_del_provider(priv->pdev->dev.of_node);
+ i2s_unregister_clocks(priv);
}
-#ifdef CONFIG_PM_RUNTIME
-static int i2s_runtime_suspend(struct device *dev)
+
+static int i2s_register_clock_provider(struct samsung_i2s_priv *priv)
{
- struct i2s_dai *i2s = dev_get_drvdata(dev);
- clk_disable_unprepare(i2s->clk);
+ const char * const i2s_clk_desc[] = { "cdclk", "rclk_src", "prescaler" };
+ const char *clk_name[2] = { "i2s_opclk0", "i2s_opclk1" };
+ const char *p_names[2] = { NULL };
+ struct device *dev = &priv->pdev->dev;
+ const struct samsung_i2s_variant_regs *reg_info = priv->variant_regs;
+ const char *i2s_clk_name[ARRAY_SIZE(i2s_clk_desc)];
+ struct clk *rclksrc;
+ int ret, i;
+
+ /* Register the clock provider only if it's expected in the DTB */
+ if (!of_property_present(dev->of_node, "#clock-cells"))
+ return 0;
- return 0;
+ /* Get the RCLKSRC mux clock parent clock names */
+ for (i = 0; i < ARRAY_SIZE(p_names); i++) {
+ rclksrc = clk_get(dev, clk_name[i]);
+ if (IS_ERR(rclksrc))
+ continue;
+ p_names[i] = __clk_get_name(rclksrc);
+ clk_put(rclksrc);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(i2s_clk_desc); i++) {
+ i2s_clk_name[i] = devm_kasprintf(dev, GFP_KERNEL, "%s_%s",
+ dev_name(dev), i2s_clk_desc[i]);
+ if (!i2s_clk_name[i])
+ return -ENOMEM;
+ }
+
+ if (!(priv->quirks & QUIRK_NO_MUXPSR)) {
+ /* Activate the prescaler */
+ u32 val = readl(priv->addr + I2SPSR);
+ writel(val | PSR_PSREN, priv->addr + I2SPSR);
+
+ priv->clk_table[CLK_I2S_RCLK_SRC] = clk_register_mux(dev,
+ i2s_clk_name[CLK_I2S_RCLK_SRC], p_names,
+ ARRAY_SIZE(p_names),
+ CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT,
+ priv->addr + I2SMOD, reg_info->rclksrc_off,
+ 1, 0, &priv->lock);
+
+ priv->clk_table[CLK_I2S_RCLK_PSR] = clk_register_divider(dev,
+ i2s_clk_name[CLK_I2S_RCLK_PSR],
+ i2s_clk_name[CLK_I2S_RCLK_SRC],
+ CLK_SET_RATE_PARENT,
+ priv->addr + I2SPSR, 8, 6, 0, &priv->lock);
+
+ p_names[0] = i2s_clk_name[CLK_I2S_RCLK_PSR];
+ priv->clk_data.clk_num = 2;
+ }
+
+ priv->clk_table[CLK_I2S_CDCLK] = clk_register_gate(dev,
+ i2s_clk_name[CLK_I2S_CDCLK], p_names[0],
+ CLK_SET_RATE_PARENT,
+ priv->addr + I2SMOD, reg_info->cdclkcon_off,
+ CLK_GATE_SET_TO_DISABLE, &priv->lock);
+
+ priv->clk_data.clk_num += 1;
+ priv->clk_data.clks = priv->clk_table;
+
+ ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get,
+ &priv->clk_data);
+ if (ret < 0) {
+ dev_err(dev, "failed to add clock provider: %d\n", ret);
+ i2s_unregister_clocks(priv);
+ }
+
+ return ret;
}
-static int i2s_runtime_resume(struct device *dev)
+/* Create platform device for the secondary PCM */
+static int i2s_create_secondary_device(struct samsung_i2s_priv *priv)
{
- struct i2s_dai *i2s = dev_get_drvdata(dev);
+ struct platform_device *pdev_sec;
+ const char *devname;
+ int ret;
+
+ devname = devm_kasprintf(&priv->pdev->dev, GFP_KERNEL, "%s-sec",
+ dev_name(&priv->pdev->dev));
+ if (!devname)
+ return -ENOMEM;
+
+ pdev_sec = platform_device_alloc(devname, -1);
+ if (!pdev_sec)
+ return -ENOMEM;
- clk_prepare_enable(i2s->clk);
+ pdev_sec->driver_override = kstrdup("samsung-i2s", GFP_KERNEL);
+ if (!pdev_sec->driver_override) {
+ platform_device_put(pdev_sec);
+ return -ENOMEM;
+ }
+
+ ret = platform_device_add(pdev_sec);
+ if (ret < 0) {
+ platform_device_put(pdev_sec);
+ return ret;
+ }
+
+ ret = device_attach(&pdev_sec->dev);
+ if (ret <= 0) {
+ platform_device_unregister(priv->pdev_sec);
+ dev_info(&pdev_sec->dev, "device_attach() failed\n");
+ return ret;
+ }
+
+ priv->pdev_sec = pdev_sec;
return 0;
}
-#endif /* CONFIG_PM_RUNTIME */
+
+static void i2s_delete_secondary_device(struct samsung_i2s_priv *priv)
+{
+ platform_device_unregister(priv->pdev_sec);
+ priv->pdev_sec = NULL;
+}
static int samsung_i2s_probe(struct platform_device *pdev)
{
struct i2s_dai *pri_dai, *sec_dai = NULL;
struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data;
- struct samsung_i2s *i2s_cfg = NULL;
- struct resource *res;
- u32 regs_base, quirks = 0, idma_addr = 0;
+ u32 regs_base, idma_addr = 0;
struct device_node *np = pdev->dev.of_node;
- enum samsung_dai_type samsung_dai_type;
- int ret = 0;
+ const struct samsung_i2s_dai_data *i2s_dai_data;
+ const struct platform_device_id *id;
+ struct samsung_i2s_priv *priv;
+ struct resource *res;
+ int num_dais, ret;
- /* Call during Seconday interface registration */
- samsung_dai_type = samsung_i2s_get_driver_data(pdev);
+ if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+ i2s_dai_data = of_device_get_match_data(&pdev->dev);
+ } else {
+ id = platform_get_device_id(pdev);
- if (samsung_dai_type == TYPE_SEC) {
- sec_dai = dev_get_drvdata(&pdev->dev);
- if (!sec_dai) {
- dev_err(&pdev->dev, "Unable to get drvdata\n");
- return -EFAULT;
- }
- snd_soc_register_component(&sec_dai->pdev->dev,
- &samsung_i2s_component,
- &sec_dai->i2s_dai_drv, 1);
- asoc_dma_platform_register(&pdev->dev);
- return 0;
- }
+ /* Nothing to do if it is the secondary device probe */
+ if (!id)
+ return 0;
- pri_dai = i2s_alloc_dai(pdev, false);
- if (!pri_dai) {
- dev_err(&pdev->dev, "Unable to alloc I2S_pri\n");
- return -ENOMEM;
+ i2s_dai_data = (struct samsung_i2s_dai_data *)id->driver_data;
}
- 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;
- }
- pri_dai->dma_capture.channel = res->start;
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
- if (i2s_pdata == NULL) {
- dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n");
+ if (np) {
+ priv->quirks = i2s_dai_data->quirks;
+ priv->fixup_early = i2s_dai_data->fixup_early;
+ priv->fixup_late = i2s_dai_data->fixup_late;
+ } else {
+ if (!i2s_pdata) {
+ dev_err(&pdev->dev, "Missing platform data\n");
return -EINVAL;
}
+ priv->quirks = i2s_pdata->type.quirks;
+ }
- if (&i2s_pdata->type)
- i2s_cfg = &i2s_pdata->type.i2s;
+ num_dais = (priv->quirks & QUIRK_SEC_DAI) ? 2 : 1;
+ priv->pdev = pdev;
+ priv->variant_regs = i2s_dai_data->i2s_variant_regs;
- if (i2s_cfg) {
- quirks = i2s_cfg->quirks;
- idma_addr = i2s_cfg->idma_addr;
- }
- } else {
- if (of_find_property(np, "samsung,supports-6ch", NULL))
- quirks |= QUIRK_PRI_6CHAN;
+ ret = i2s_alloc_dais(priv, i2s_dai_data, num_dais);
+ if (ret < 0)
+ return ret;
- if (of_find_property(np, "samsung,supports-secdai", NULL))
- quirks |= QUIRK_SEC_DAI;
+ pri_dai = &priv->dai[SAMSUNG_I2S_ID_PRIMARY - 1];
- if (of_find_property(np, "samsung,supports-rstclr", NULL))
- quirks |= QUIRK_NEED_RSTCLR;
+ spin_lock_init(&priv->lock);
+ spin_lock_init(&priv->pcm_lock);
+ if (!np) {
+ pri_dai->dma_playback.filter_data = i2s_pdata->dma_playback;
+ pri_dai->dma_capture.filter_data = i2s_pdata->dma_capture;
+ pri_dai->filter = i2s_pdata->dma_filter;
+
+ idma_addr = i2s_pdata->type.idma_addr;
+ } else {
if (of_property_read_u32(np, "samsung,idma-addr",
&idma_addr)) {
- if (quirks & QUIRK_SEC_DAI) {
- dev_err(&pdev->dev, "idma address is not"\
+ if (priv->quirks & QUIRK_SUPPORTS_IDMA) {
+ dev_info(&pdev->dev, "idma address is not"\
"specified");
- return -EINVAL;
}
}
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get I2S SFR address\n");
- return -ENXIO;
+ priv->addr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+ if (IS_ERR(priv->addr))
+ return PTR_ERR(priv->addr);
+
+ regs_base = res->start;
+
+ priv->clk = devm_clk_get(&pdev->dev, "iis");
+ if (IS_ERR(priv->clk)) {
+ dev_err(&pdev->dev, "Failed to get iis clock\n");
+ return PTR_ERR(priv->clk);
}
- if (!request_mem_region(res->start, resource_size(res),
- "samsung-i2s")) {
- dev_err(&pdev->dev, "Unable to request SFR region\n");
- return -EBUSY;
+ ret = clk_prepare_enable(priv->clk);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "failed to enable clock: %d\n", ret);
+ return ret;
}
- regs_base = res->start;
+ pri_dai->dma_playback.addr = regs_base + I2STXD;
+ pri_dai->dma_capture.addr = regs_base + I2SRXD;
+ pri_dai->dma_playback.chan_name = "tx";
+ pri_dai->dma_capture.chan_name = "rx";
+ pri_dai->dma_playback.addr_width = 4;
+ pri_dai->dma_capture.addr_width = 4;
+ pri_dai->priv = priv;
- 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;
- pri_dai->dma_playback.ch_name = "tx";
- pri_dai->dma_capture.client =
- (struct s3c2410_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;
- pri_dai->quirks = quirks;
-
- if (quirks & QUIRK_PRI_6CHAN)
- pri_dai->i2s_dai_drv.playback.channels_max = 6;
-
- if (quirks & QUIRK_SEC_DAI) {
- sec_dai = i2s_alloc_dai(pdev, true);
- if (!sec_dai) {
- dev_err(&pdev->dev, "Unable to alloc I2S_sec\n");
- ret = -ENOMEM;
- goto err;
- }
- sec_dai->dma_playback.dma_addr = regs_base + I2STXDS;
- sec_dai->dma_playback.client =
- (struct s3c2410_dma_client *)&sec_dai->dma_playback;
- sec_dai->dma_playback.ch_name = "tx-sec";
+ if (priv->quirks & QUIRK_PRI_6CHAN)
+ pri_dai->drv->playback.channels_max = 6;
+
+ ret = samsung_asoc_dma_platform_register(&pdev->dev, pri_dai->filter,
+ "tx", "rx", NULL);
+ if (ret < 0)
+ goto err_disable_clk;
+
+ if (priv->quirks & QUIRK_SEC_DAI) {
+ sec_dai = &priv->dai[SAMSUNG_I2S_ID_SECONDARY - 1];
+
+ sec_dai->dma_playback.addr = regs_base + I2STXDS;
+ sec_dai->dma_playback.chan_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.filter_data = i2s_pdata->dma_play_sec;
+ sec_dai->filter = i2s_pdata->dma_filter;
}
- 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->dma_playback.addr_width = 4;
+ sec_dai->idma_playback.addr = idma_addr;
sec_dai->pri_dai = pri_dai;
+ sec_dai->priv = priv;
pri_dai->sec_dai = sec_dai;
+
+ ret = i2s_create_secondary_device(priv);
+ if (ret < 0)
+ goto err_disable_clk;
+
+ ret = samsung_asoc_dma_platform_register(&priv->pdev_sec->dev,
+ sec_dai->filter, "tx-sec", NULL,
+ &pdev->dev);
+ if (ret < 0)
+ goto err_del_sec;
+
}
if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
dev_err(&pdev->dev, "Unable to configure gpio\n");
ret = -EINVAL;
- goto err;
+ goto err_del_sec;
}
- snd_soc_register_component(&pri_dai->pdev->dev, &samsung_i2s_component,
- &pri_dai->i2s_dai_drv, 1);
+ dev_set_drvdata(&pdev->dev, priv);
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &samsung_i2s_component,
+ priv->dai_drv, num_dais);
+ if (ret < 0)
+ goto err_del_sec;
+
+ pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
- asoc_dma_platform_register(&pdev->dev);
+ ret = i2s_register_clock_provider(priv);
+ if (ret < 0)
+ goto err_disable_pm;
+
+ priv->op_clk = clk_get_parent(priv->clk_table[CLK_I2S_RCLK_SRC]);
return 0;
-err:
- release_mem_region(regs_base, resource_size(res));
+err_disable_pm:
+ pm_runtime_disable(&pdev->dev);
+err_del_sec:
+ i2s_delete_secondary_device(priv);
+err_disable_clk:
+ clk_disable_unprepare(priv->clk);
return ret;
}
-static int samsung_i2s_remove(struct platform_device *pdev)
+static void samsung_i2s_remove(struct platform_device *pdev)
{
- struct i2s_dai *i2s, *other;
- struct resource *res;
+ struct samsung_i2s_priv *priv = dev_get_drvdata(&pdev->dev);
- i2s = dev_get_drvdata(&pdev->dev);
- other = i2s->pri_dai ? : i2s->sec_dai;
+ /* The secondary device has no driver data assigned */
+ if (!priv)
+ return;
- if (other) {
- other->pri_dai = NULL;
- other->sec_dai = NULL;
- } else {
- pm_runtime_disable(&pdev->dev);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res)
- release_mem_region(res->start, resource_size(res));
- }
+ pm_runtime_get_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
+ i2s_unregister_clock_provider(priv);
+ i2s_delete_secondary_device(priv);
+ clk_disable_unprepare(priv->clk);
- i2s->pri_dai = NULL;
- i2s->sec_dai = NULL;
+ pm_runtime_put_noidle(&pdev->dev);
+}
- asoc_dma_platform_unregister(&pdev->dev);
- snd_soc_unregister_component(&pdev->dev);
+static void fsd_i2s_fixup_early(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct i2s_dai *i2s = to_info(snd_soc_rtd_to_cpu(rtd, 0));
+ struct i2s_dai *other = get_other_dai(i2s);
- return 0;
+ if (!is_opened(other)) {
+ i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK, 0, SND_SOC_CLOCK_OUT);
+ i2s_set_sysclk(dai, SAMSUNG_I2S_OPCLK, 0, MOD_OPCLK_PCLK);
+ }
}
-static struct platform_device_id samsung_i2s_driver_ids[] = {
+static void fsd_i2s_fixup_late(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+ struct i2s_dai *i2s = to_info(snd_soc_rtd_to_cpu(rtd, 0));
+ struct i2s_dai *other = get_other_dai(i2s);
+
+ if (!is_opened(other))
+ writel(PSR_PSVAL(2) | PSR_PSREN, priv->addr + I2SPSR);
+}
+
+static const struct samsung_i2s_variant_regs i2sv3_regs = {
+ .bfs_off = 1,
+ .rfs_off = 3,
+ .sdf_off = 5,
+ .txr_off = 8,
+ .rclksrc_off = 10,
+ .mss_off = 11,
+ .cdclkcon_off = 12,
+ .lrp_off = 7,
+ .bfs_mask = 0x3,
+ .rfs_mask = 0x3,
+ .ftx0cnt_off = 8,
+};
+
+static const struct samsung_i2s_variant_regs i2sv6_regs = {
+ .bfs_off = 0,
+ .rfs_off = 4,
+ .sdf_off = 6,
+ .txr_off = 8,
+ .rclksrc_off = 10,
+ .mss_off = 11,
+ .cdclkcon_off = 12,
+ .lrp_off = 15,
+ .bfs_mask = 0xf,
+ .rfs_mask = 0x3,
+ .ftx0cnt_off = 8,
+};
+
+static const struct samsung_i2s_variant_regs i2sv7_regs = {
+ .bfs_off = 0,
+ .rfs_off = 4,
+ .sdf_off = 7,
+ .txr_off = 9,
+ .rclksrc_off = 11,
+ .mss_off = 12,
+ .cdclkcon_off = 22,
+ .lrp_off = 15,
+ .bfs_mask = 0xf,
+ .rfs_mask = 0x7,
+ .ftx0cnt_off = 0,
+};
+
+static const struct samsung_i2s_variant_regs i2sv5_i2s1_regs = {
+ .bfs_off = 0,
+ .rfs_off = 3,
+ .sdf_off = 6,
+ .txr_off = 8,
+ .rclksrc_off = 10,
+ .mss_off = 11,
+ .cdclkcon_off = 12,
+ .lrp_off = 15,
+ .bfs_mask = 0x7,
+ .rfs_mask = 0x7,
+ .ftx0cnt_off = 8,
+};
+
+static const struct samsung_i2s_dai_data i2sv3_dai_type = {
+ .quirks = QUIRK_NO_MUXPSR,
+ .pcm_rates = SNDRV_PCM_RATE_8000_96000,
+ .i2s_variant_regs = &i2sv3_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv5_dai_type __maybe_unused = {
+ .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+ QUIRK_SUPPORTS_IDMA,
+ .pcm_rates = SNDRV_PCM_RATE_8000_96000,
+ .i2s_variant_regs = &i2sv3_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv6_dai_type __maybe_unused = {
+ .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+ QUIRK_SUPPORTS_TDM | QUIRK_SUPPORTS_IDMA,
+ .pcm_rates = SNDRV_PCM_RATE_8000_96000,
+ .i2s_variant_regs = &i2sv6_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv7_dai_type __maybe_unused = {
+ .quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+ QUIRK_SUPPORTS_TDM,
+ .pcm_rates = SNDRV_PCM_RATE_8000_192000,
+ .i2s_variant_regs = &i2sv7_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv5_dai_type_i2s1 __maybe_unused = {
+ .quirks = QUIRK_PRI_6CHAN | QUIRK_NEED_RSTCLR,
+ .pcm_rates = SNDRV_PCM_RATE_8000_96000,
+ .i2s_variant_regs = &i2sv5_i2s1_regs,
+};
+
+static const struct samsung_i2s_dai_data fsd_dai_type __maybe_unused = {
+ .quirks = QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR | QUIRK_SUPPORTS_TDM,
+ .pcm_rates = SNDRV_PCM_RATE_8000_192000,
+ .i2s_variant_regs = &i2sv7_regs,
+ .fixup_early = fsd_i2s_fixup_early,
+ .fixup_late = fsd_i2s_fixup_late,
+};
+
+static const struct platform_device_id samsung_i2s_driver_ids[] = {
{
.name = "samsung-i2s",
- .driver_data = TYPE_PRI,
- }, {
- .name = "samsung-i2s-sec",
- .driver_data = TYPE_SEC,
+ .driver_data = (kernel_ulong_t)&i2sv3_dai_type,
},
{},
};
MODULE_DEVICE_TABLE(platform, samsung_i2s_driver_ids);
#ifdef CONFIG_OF
-static struct samsung_i2s_dai_data samsung_i2s_dai_data_array[] = {
- [TYPE_PRI] = { TYPE_PRI },
- [TYPE_SEC] = { TYPE_SEC },
-};
-
static const struct of_device_id exynos_i2s_match[] = {
- { .compatible = "samsung,i2s-v5",
- .data = &samsung_i2s_dai_data_array[TYPE_PRI],
+ {
+ .compatible = "samsung,s3c6410-i2s",
+ .data = &i2sv3_dai_type,
+ }, {
+ .compatible = "samsung,s5pv210-i2s",
+ .data = &i2sv5_dai_type,
+ }, {
+ .compatible = "samsung,exynos5420-i2s",
+ .data = &i2sv6_dai_type,
+ }, {
+ .compatible = "samsung,exynos7-i2s",
+ .data = &i2sv7_dai_type,
+ }, {
+ .compatible = "samsung,exynos7-i2s1",
+ .data = &i2sv5_dai_type_i2s1,
+ }, {
+ .compatible = "tesla,fsd-i2s",
+ .data = &fsd_dai_type,
},
{},
};
@@ -1264,8 +1731,8 @@ 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)
+ RUNTIME_PM_OPS(i2s_runtime_suspend, i2s_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume)
};
static struct platform_driver samsung_i2s_driver = {
@@ -1274,9 +1741,8 @@ static struct platform_driver samsung_i2s_driver = {
.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,
+ .pm = pm_ptr(&samsung_i2s_pm),
},
};
@@ -1285,5 +1751,4 @@ module_platform_driver(samsung_i2s_driver);
/* Module information */
MODULE_AUTHOR("Jaswinder Singh, <jassisinghbrar@gmail.com>");
MODULE_DESCRIPTION("Samsung I2S Interface");
-MODULE_ALIAS("platform:samsung-i2s");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 18:43:30 +0000