static int sun6i_i2s_suspend(struct snd_soc_dai *cpu_dai)
{
u32 reg_val;
printk("[IIS]Entered %s\n", __func__);
/*Global disable Digital Audio Interface*/
reg_val = readl(sun6i_iis.regs + SUN6I_IISCTL);
reg_val &= ~SUN6I_IISCTL_GEN;
writel(reg_val, sun6i_iis.regs + SUN6I_IISCTL);
iisregsave();
if ((NULL == i2s_moduleclk) ||(IS_ERR(i2s_moduleclk))) {
printk("i2s_moduleclk handle is invalid, just return\n");
return -EFAULT;
} else {
/*release the module clock*/
clk_disable(i2s_moduleclk);
}
if ((NULL == i2s_apbclk) ||(IS_ERR(i2s_apbclk))) {
printk("i2s_apbclk handle is invalid, just return\n");
return -EFAULT;
} else {
clk_disable(i2s_apbclk);
}
return 0;
}
static int sun7i_pcm_suspend(struct snd_soc_dai *cpu_dai)
{
u32 reg_val;
printk("[IIS]Entered %s\n", __func__);
//Global Enable Digital Audio Interface
reg_val = readl(sun7i_pcm.regs + SUN7I_IISCTL);
reg_val &= ~SUN7I_IISCTL_GEN;
writel(reg_val, sun7i_pcm.regs + SUN7I_IISCTL);
iisregsave();
if ((NULL == i2s_moduleclk) ||(IS_ERR(i2s_moduleclk))) {
printk("i2s_moduleclk handle is invalid, just return\n");
return -EFAULT;
} else {
//release the module clock
clk_disable(i2s_moduleclk);
}
if ((NULL == i2s_apbclk) ||(IS_ERR(i2s_apbclk))) {
printk("i2s_apbclk handle is invalid, just return\n");
return -EFAULT;
} else {
clk_disable(i2s_apbclk);
}
//printk("[IIS]PLL2 0x01c20008 = %#x\n", *(volatile int*)0xF1C20008);
/*printk("[IIS]SPECIAL CLK 0x01c20068 = %#x, line= %d\n", *(volatile int*)0xF1C20068, __LINE__);
printk("[IIS]SPECIAL CLK 0x01c200B8 = %#x, line = %d\n", *(volatile int*)0xF1C200B8, __LINE__);*/
return 0;
}
static int sun4i_i2s_suspend(struct snd_soc_dai *cpu_dai)
{
u32 reg_val;
printk("[IIS]Entered %s\n", __func__);
//Global Enable Digital Audio Interface
reg_val = readl(sun4i_iis.regs + SUN4I_IISCTL);
reg_val &= ~SUN4I_IISCTL_GEN;
writel(reg_val, sun4i_iis.regs + SUN4I_IISCTL);
iisregsave();
//release the module clock
clk_disable(i2s_moduleclk);
clk_disable(i2s_apbclk);
return 0;
}
