The patch

ASoC: samsung: i2s: Drop spinlock pointer from i2s_dai data structure

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 9d7939c929413d0f9effef599a0ca73300b494be Mon Sep 17 00:00:00 2001

From: Sylwester Nawrocki s.nawrocki@samsung.com Date: Thu, 14 Feb 2019 10:37:36 +0100 Subject: [PATCH] ASoC: samsung: i2s: Drop spinlock pointer from i2s_dai data structure

As we now have the 'priv' pointer in most of the places we can use priv->lock directly, dropping extra indirection in the SFR region spinlock access.

Signed-off-by: Sylwester Nawrocki s.nawrocki@samsung.com Acked-by: Krzysztof Kozlowski krzk@kernel.org Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/samsung/i2s.c | 51 +++++++++++++++++++---------------------- 1 file changed, 24 insertions(+), 27 deletions(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 3f8955608a94..cf8615e23879 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -87,8 +87,6 @@ struct i2s_dai { u32 quirks; const struct samsung_i2s_variant_regs *variant_regs;

- spinlock_t *lock; - struct samsung_i2s_priv *priv; };

@@ -103,7 +101,7 @@ struct samsung_i2s_priv { void __iomem *addr;

/* Spinlock protecting access to the device's registers */ - spinlock_t spinlock; + spinlock_t lock;

/* CPU DAIs and their corresponding drivers */ struct i2s_dai *dai; @@ -527,9 +525,9 @@ 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); + spin_lock_irqsave(&priv->lock, flags); mod = readl(priv->addr + I2SMOD); - spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags);

switch (clk_id) { case SAMSUNG_I2S_OPCLK: @@ -624,11 +622,11 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int rfs, goto err; }

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

@@ -709,7 +707,7 @@ 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); + spin_lock_irqsave(&priv->lock, flags); mod = readl(priv->addr + I2SMOD); /* * Don't change the I2S mode if any controller is active on this @@ -717,7 +715,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) */ if (any_active(i2s) && ((mod & (sdf_mask | lrp_rlow | mod_slave)) != tmp)) { - spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); pm_runtime_put(dai->dev); dev_err(&i2s->pdev->dev, "%s:%d Other DAI busy\n", __func__, __LINE__); @@ -727,7 +725,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) mod &= ~(sdf_mask | lrp_rlow | mod_slave); mod |= tmp; writel(mod, priv->addr + I2SMOD); - spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); pm_runtime_put(dai->dev);

return 0; @@ -812,11 +810,11 @@ static int i2s_hw_params(struct snd_pcm_substream *substream, return -EINVAL; }

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

snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);

@@ -944,6 +942,7 @@ 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); @@ -954,10 +953,10 @@ static int i2s_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: pm_runtime_get_sync(dai->dev); - spin_lock_irqsave(i2s->lock, flags); + spin_lock_irqsave(&priv->lock, flags);

if (config_setup(i2s)) { - spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); return -EINVAL; }

@@ -966,12 +965,12 @@ static int i2s_trigger(struct snd_pcm_substream *substream, else i2s_txctrl(i2s, 1);

- spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - spin_lock_irqsave(i2s->lock, flags); + spin_lock_irqsave(&priv->lock, flags);

if (capture) { i2s_rxctrl(i2s, 0); @@ -981,7 +980,7 @@ static int i2s_trigger(struct snd_pcm_substream *substream, i2s_fifo(i2s, FIC_TXFLUSH); }

- spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); pm_runtime_put(dai->dev); break; } @@ -1081,13 +1080,13 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai) i2s->rfs = 0; i2s->bfs = 0;

- spin_lock_irqsave(i2s->lock, flags); + 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(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags);

/* Gate CDCLK by default */ if (!is_opened(other)) @@ -1108,9 +1107,9 @@ 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); + spin_lock_irqsave(&priv->lock, flags); writel(0, priv->addr + I2SCON); - spin_unlock_irqrestore(i2s->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); } }

@@ -1317,13 +1316,13 @@ static int i2s_register_clock_provider(struct samsung_i2s_priv *priv) ARRAY_SIZE(p_names), CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, priv->addr + I2SMOD, reg_info->rclksrc_off, - 1, 0, i2s->lock); + 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, i2s->lock); + priv->addr + I2SPSR, 8, 6, 0, &priv->lock);

p_names[0] = i2s_clk_name[CLK_I2S_RCLK_PSR]; priv->clk_data.clk_num = 2; @@ -1333,7 +1332,7 @@ static int i2s_register_clock_provider(struct samsung_i2s_priv *priv) 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, i2s->lock); + CLK_GATE_SET_TO_DISABLE, &priv->lock);

priv->clk_data.clk_num += 1; priv->clk_data.clks = priv->clk_table; @@ -1411,8 +1410,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)

pri_dai = &priv->dai[SAMSUNG_I2S_ID_PRIMARY - 1];

- spin_lock_init(&priv->spinlock); - pri_dai->lock = &priv->spinlock; + spin_lock_init(&priv->lock);

if (!np) { if (i2s_pdata == NULL) { @@ -1474,7 +1472,6 @@ static int samsung_i2s_probe(struct platform_device *pdev) if (quirks & QUIRK_SEC_DAI) { sec_dai = &priv->dai[SAMSUNG_I2S_ID_SECONDARY - 1];

- sec_dai->lock = &priv->spinlock; sec_dai->variant_regs = pri_dai->variant_regs; sec_dai->dma_playback.addr = regs_base + I2STXDS; sec_dai->dma_playback.chan_name = "tx-sec";