lkml.org 
[lkml]   [2019]   [Feb]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 12/22] ASoC: samsung: i2s: Move SFR pointer to common driver data structure
Date
The SFR region is common for both DAIs so move related data structure
field from struct i2s_dai to the common driver data structure.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
sound/soc/samsung/i2s.c | 105 ++++++++++++++++++++++------------------
1 file changed, 58 insertions(+), 47 deletions(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index b0913cc488ab..9fae732bb620 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -60,8 +60,7 @@ struct samsung_i2s_dai_data {
struct i2s_dai {
/* Platform device for this DAI */
struct platform_device *pdev;
- /* Memory mapped SFR region */
- void __iomem *addr;
+
/* Frame Clock */
unsigned frmclk;
/*
@@ -100,6 +99,9 @@ struct samsung_i2s_priv {
struct platform_device *pdev;
struct platform_device *pdev_sec;

+ /* Memory mapped SFR region */
+ void __iomem *addr;
+
/* Spinlock protecting access to the device's registers */
spinlock_t spinlock;

@@ -143,7 +145,9 @@ static inline bool is_secondary(struct i2s_dai *i2s)
/* If operating in SoC-Slave mode */
static inline bool is_slave(struct i2s_dai *i2s)
{
- u32 mod = readl(i2s->addr + I2SMOD);
+ struct samsung_i2s_priv *priv = i2s->priv;
+
+ u32 mod = readl(priv->addr + I2SMOD);
return (mod & (1 << i2s->variant_regs->mss_off)) ? true : false;
}

@@ -155,7 +159,7 @@ 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;
@@ -193,7 +197,7 @@ 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;
}
@@ -256,8 +260,10 @@ 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)
{
+ struct samsung_i2s_priv *priv = i2s->priv;
u32 rfs;
- rfs = readl(i2s->addr + I2SMOD) >> i2s->variant_regs->rfs_off;
+
+ rfs = readl(priv->addr + I2SMOD) >> i2s->variant_regs->rfs_off;
rfs &= i2s->variant_regs->rfs_mask;

switch (rfs) {
@@ -275,7 +281,8 @@ 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 = i2s->variant_regs->rfs_off;

mod &= ~(i2s->variant_regs->rfs_mask << rfs_shift);
@@ -307,14 +314,16 @@ static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
break;
}

- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
}

/* Read Bit-Clock of I2S (in multiples of LRCLK) */
static inline unsigned get_bfs(struct i2s_dai *i2s)
{
+ struct samsung_i2s_priv *priv = i2s->priv;
u32 bfs;
- bfs = readl(i2s->addr + I2SMOD) >> i2s->variant_regs->bfs_off;
+
+ bfs = readl(priv->addr + I2SMOD) >> i2s->variant_regs->bfs_off;
bfs &= i2s->variant_regs->bfs_mask;

switch (bfs) {
@@ -333,7 +342,8 @@ static inline unsigned get_bfs(struct i2s_dai *i2s)
/* 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 = i2s->quirks & QUIRK_SUPPORTS_TDM;
int bfs_shift = i2s->variant_regs->bfs_off;

@@ -378,13 +388,13 @@ static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs)
return;
}

- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
}

/* 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;

@@ -398,7 +408,8 @@ static inline int get_blc(struct i2s_dai *i2s)
/* 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 = i2s->variant_regs->txr_off;
u32 con = readl(addr + I2SCON);
u32 mod = readl(addr + I2SMOD) & ~(3 << txr_off);
@@ -448,7 +459,8 @@ 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 = i2s->variant_regs->txr_off;
u32 con = readl(addr + I2SCON);
u32 mod = readl(addr + I2SMOD) & ~(3 << txr_off);
@@ -485,9 +497,9 @@ 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);
@@ -516,7 +528,7 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int rfs,
pm_runtime_get_sync(dai->dev);

spin_lock_irqsave(i2s->lock, flags);
- mod = readl(i2s->addr + I2SMOD);
+ mod = readl(priv->addr + I2SMOD);
spin_unlock_irqrestore(i2s->lock, flags);

switch (clk_id) {
@@ -613,9 +625,9 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int rfs,
}

spin_lock_irqsave(i2s->lock, flags);
- mod = readl(i2s->addr + I2SMOD);
+ mod = readl(priv->addr + I2SMOD);
mod = (mod & ~mask) | val;
- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
spin_unlock_irqrestore(i2s->lock, flags);
done:
pm_runtime_put(dai->dev);
@@ -698,7 +710,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)

pm_runtime_get_sync(dai->dev);
spin_lock_irqsave(i2s->lock, flags);
- mod = readl(i2s->addr + I2SMOD);
+ mod = readl(priv->addr + I2SMOD);
/*
* Don't change the I2S mode if any controller is active on this
* channel.
@@ -714,7 +726,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)

mod &= ~(sdf_mask | lrp_rlow | mod_slave);
mod |= tmp;
- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
spin_unlock_irqrestore(i2s->lock, flags);
pm_runtime_put(dai->dev);

@@ -801,9 +813,9 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
}

spin_lock_irqsave(i2s->lock, flags);
- mod = readl(i2s->addr + I2SMOD);
+ mod = readl(priv->addr + I2SMOD);
mod = (mod & ~mask) | val;
- writel(mod, i2s->addr + I2SMOD);
+ writel(mod, priv->addr + I2SMOD);
spin_unlock_irqrestore(i2s->lock, flags);

snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
@@ -837,7 +849,7 @@ static int i2s_startup(struct snd_pcm_substream *substream,
i2s->mode |= DAI_MANAGER;

if (!any_active(i2s) && (i2s->quirks & QUIRK_NEED_RSTCLR))
- writel(CON_RSTCLR, i2s->addr + I2SCON);
+ writel(CON_RSTCLR, i2s->priv->addr + I2SCON);

spin_unlock_irqrestore(&lock, flags);

@@ -920,7 +932,7 @@ static int config_setup(struct i2s_dai *i2s)

if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
psr = priv->rclk_srcrate / i2s->frmclk / rfs;
- writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);
+ writel(((psr - 1) << 8) | PSR_PSREN, priv->addr + I2SPSR);
dev_dbg(&i2s->pdev->dev,
"RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n",
priv->rclk_srcrate, psr, rfs, bfs);
@@ -1008,8 +1020,9 @@ 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;
const struct samsung_i2s_variant_regs *i2s_regs = i2s->variant_regs;

@@ -1018,7 +1031,7 @@ i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
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 = (reg >> i2s_regs->ftx0cnt_off) & 0x7f;

@@ -1042,6 +1055,7 @@ 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 = get_other_dai(i2s);
unsigned long flags;
@@ -1056,10 +1070,10 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
&i2s->dma_capture);

if (i2s->quirks & QUIRK_NEED_RSTCLR)
- writel(CON_RSTCLR, i2s->addr + I2SCON);
+ writel(CON_RSTCLR, priv->addr + I2SCON);

if (i2s->quirks & QUIRK_SUPPORTS_IDMA)
- idma_reg_addr_init(i2s->addr,
+ idma_reg_addr_init(priv->addr,
i2s->sec_dai->idma_playback.addr);
}

@@ -1094,7 +1108,7 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
if (!is_secondary(i2s)) {
if (i2s->quirks & QUIRK_NEED_RSTCLR) {
spin_lock_irqsave(i2s->lock, flags);
- writel(0, i2s->addr + I2SCON);
+ writel(0, i2s->priv->addr + I2SCON);
spin_unlock_irqrestore(i2s->lock, flags);
}
}
@@ -1205,11 +1219,10 @@ static int i2s_alloc_dais(struct samsung_i2s_priv *priv,
static int i2s_runtime_suspend(struct device *dev)
{
struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
- struct i2s_dai *i2s = samsung_i2s_get_pri_dai(dev);

- priv->suspend_i2smod = readl(i2s->addr + I2SMOD);
- priv->suspend_i2scon = readl(i2s->addr + I2SCON);
- priv->suspend_i2spsr = readl(i2s->addr + I2SPSR);
+ priv->suspend_i2smod = readl(priv->addr + I2SMOD);
+ priv->suspend_i2scon = readl(priv->addr + I2SCON);
+ priv->suspend_i2spsr = readl(priv->addr + I2SPSR);

if (priv->op_clk)
clk_disable_unprepare(priv->op_clk);
@@ -1221,7 +1234,6 @@ static int i2s_runtime_suspend(struct device *dev)
static int i2s_runtime_resume(struct device *dev)
{
struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
- struct i2s_dai *i2s = samsung_i2s_get_pri_dai(dev);
int ret;

ret = clk_prepare_enable(priv->clk);
@@ -1236,9 +1248,9 @@ static int i2s_runtime_resume(struct device *dev)
}
}

- writel(priv->suspend_i2scon, i2s->addr + I2SCON);
- writel(priv->suspend_i2smod, i2s->addr + I2SMOD);
- writel(priv->suspend_i2spsr, i2s->addr + I2SPSR);
+ writel(priv->suspend_i2scon, priv->addr + I2SCON);
+ writel(priv->suspend_i2smod, priv->addr + I2SMOD);
+ writel(priv->suspend_i2spsr, priv->addr + I2SPSR);

return 0;
}
@@ -1296,21 +1308,21 @@ static int i2s_register_clock_provider(struct samsung_i2s_priv *priv)

if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
/* Activate the prescaler */
- u32 val = readl(i2s->addr + I2SPSR);
- writel(val | PSR_PSREN, i2s->addr + I2SPSR);
+ 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,
- i2s->addr + I2SMOD, reg_info->rclksrc_off,
+ priv->addr + I2SMOD, reg_info->rclksrc_off,
1, 0, i2s->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,
- i2s->addr + I2SPSR, 8, 6, 0, i2s->lock);
+ priv->addr + I2SPSR, 8, 6, 0, i2s->lock);

p_names[0] = i2s_clk_name[CLK_I2S_RCLK_PSR];
priv->clk_data.clk_num = 2;
@@ -1319,7 +1331,7 @@ static int i2s_register_clock_provider(struct samsung_i2s_priv *priv)
priv->clk_table[CLK_I2S_CDCLK] = clk_register_gate(dev,
i2s_clk_name[CLK_I2S_CDCLK], p_names[0],
CLK_SET_RATE_PARENT,
- i2s->addr + I2SMOD, reg_info->cdclkcon_off,
+ priv->addr + I2SMOD, reg_info->cdclkcon_off,
CLK_GATE_SET_TO_DISABLE, i2s->lock);

priv->clk_data.clk_num += 1;
@@ -1423,9 +1435,9 @@ static int samsung_i2s_probe(struct platform_device *pdev)
}

res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- pri_dai->addr = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(pri_dai->addr))
- return PTR_ERR(pri_dai->addr);
+ priv->addr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->addr))
+ return PTR_ERR(priv->addr);

regs_base = res->start;

@@ -1472,7 +1484,6 @@ static int samsung_i2s_probe(struct platform_device *pdev)
}

sec_dai->dma_playback.addr_width = 4;
- sec_dai->addr = pri_dai->addr;
sec_dai->quirks = quirks;
sec_dai->idma_playback.addr = idma_addr;
sec_dai->pri_dai = pri_dai;
--
2.20.1
\
 
 \ /
  Last update: 2019-02-07 18:02    [W:0.249 / U:2.620 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site