void s5p_i2s_do_resume(struct snd_soc_dai *dai)
{
struct s3c_i2sv2_info *i2s = to_info(dai);
if (!audio_pwr_stat) {
s5p_i2s_set_pwr_enabled(dai, 1);
s5p_i2s_set_clk_enabled(dai, 1);
} else {
s5p_i2s_set_clk_enabled(dai, 1);
}
if (audio_pwr_stat && audio_clk_stat) {
if (audio_reg_saved) {
writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD);
writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON);
writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR);
#ifdef CONFIG_SND_S5P_RP
if (s5p_rp_is_running) {
if (!(i2s->suspend_iisahb & (S5P_IISAHB_DMARLD | S5P_IISAHB_DMAEN))) {
pr_debug("iis: Warning!! Keep auto-reload & DMA En 0x%x\n", i2s->suspend_iisahb);
i2s->suspend_iisahb |= S5P_IISAHB_DMARLD | S5P_IISAHB_DMAEN;
}
} else {
if ((i2s->suspend_iisahb & S5P_IISAHB_DMARLD)) {
i2s->suspend_iisahb &= ~S5P_IISAHB_DMARLD;
pr_debug("iis: Warning!! Disable auto-reload 0x%x\n", i2s->suspend_iisahb);
}
}
#else
if ((i2s->suspend_iisahb & S5P_IISAHB_DMARLD)) {
i2s->suspend_iisahb &= ~S5P_IISAHB_DMARLD;
pr_debug("iis: Warning!! Disable auto-reload 0x%x\n", i2s->suspend_iisahb);
}
#endif
writel(i2s->suspend_iisahb, i2s->regs + S5P_IISAHB);
/* Is this dai for I2Sv5? (I2S0) */
if (dai->id == 0) {
writel(i2s->suspend_audss_clksrc,
S5P_CLKSRC_AUDSS);
writel(i2s->suspend_audss_clkdiv,
S5P_CLKDIV_AUDSS);
writel(i2s->suspend_audss_clkgate,
S5P_CLKGATE_AUDSS);
}
pr_debug("iis: Resume and registers restored.\n");
audio_reg_saved = false;
}
}
}
void s5p_i2s_do_resume(struct snd_soc_dai *dai)
{
struct s3c_i2sv2_info *i2s = to_info(dai);
unsigned long flags;
spin_lock_irqsave(&i2s_clk_lock, flags);
if (audio_clk_gated) { /* Clk/Pwr is gated? */
s5p_i2s_set_clk_enabled(dai, 1); /* Enable Clk/Pwr */
writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON);
writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD);
writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR);
writel(i2s->suspend_iisahb, i2s->regs + S5P_IISAHB);
/* Is this dai for I2Sv5? (I2S0) */
if (dai->id == 0) {
writel(i2s->suspend_audss_clkdiv, S5P_CLKDIV_AUDSS);
writel(i2s->suspend_audss_clksrc, S5P_CLKSRC_AUDSS);
writel(i2s->suspend_audss_clkgate, S5P_CLKGATE_AUDSS);
}
/* Flush FIFO */
writel(S3C2412_IISFIC_RXFLUSH | S3C2412_IISFIC_TXFLUSH,
i2s->regs + S3C2412_IISFIC);
writel(S3C2412_IISFIC_TXFLUSH, i2s->regs + S5P_IISFICS);
ndelay(250);
writel(0x0, i2s->regs + S3C2412_IISFIC);
writel(0x0, i2s->regs + S5P_IISFICS);
pr_debug("Resume and registers restored.\n");
}
spin_unlock_irqrestore(&i2s_clk_lock, flags);
}
void s5p_i2s_do_suspend(struct snd_soc_dai *dai)
{
struct s3c_i2sv2_info *i2s = to_info(dai);
unsigned long flags;
spin_lock_irqsave(&i2s_clk_lock, flags);
if (!audio_clk_gated) { /* Clk/Pwr is alive? */
i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON);
i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD);
i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR);
i2s->suspend_iisahb = readl(i2s->regs + S5P_IISAHB);
/* Is this dai for I2Sv5? (I2S0) */
if (dai->id == 0) {
i2s->suspend_audss_clkdiv = readl(S5P_CLKDIV_AUDSS);
i2s->suspend_audss_clksrc = readl(S5P_CLKSRC_AUDSS);
i2s->suspend_audss_clkgate = readl(S5P_CLKGATE_AUDSS);
/* CLKMUX_ASS & MUX_I2S as XUSBXTI to reduce power */
writel(0x0, S5P_CLKSRC_AUDSS);
}
s5p_i2s_set_clk_enabled(dai, 0); /* Gating Clk/Pwr */
pr_debug("Registers stored and suspend.\n");
}
spin_unlock_irqrestore(&i2s_clk_lock, flags);
}
void s5p_i2s_do_suspend(struct snd_soc_dai *dai)
{
struct s3c_i2sv2_info *i2s = to_info(dai);
#ifdef CONFIG_SND_S5P_RP
if (s5p_rp_is_running)
return;
#endif
if ((!audio_pwr_stat) && (!audio_clk_stat))
return;
if (!audio_reg_saved) {
i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD);
i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON);
i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR);
i2s->suspend_iisahb = readl(i2s->regs + S5P_IISAHB);
/* Is this dai for I2Sv5? (I2S0) */
if (dai->id == 0) {
i2s->suspend_audss_clksrc =
readl(S5P_CLKSRC_AUDSS);
i2s->suspend_audss_clkdiv =
readl(S5P_CLKDIV_AUDSS);
i2s->suspend_audss_clkgate =
readl(S5P_CLKGATE_AUDSS);
}
audio_reg_saved = true;
pr_debug("iis: Registers stored and suspend.\n");
}
#ifdef CONFIG_SND_S5P_RP
if (!s5p_rp_is_running)
#endif
s5p_i2s_set_clk_enabled(dai, 0);
#ifdef CONFIG_SND_S5P_RP
if (!s5p_rp_is_opened)
#endif
s5p_i2s_set_pwr_enabled(dai, 0);
}
