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-rw-r--r--arch/arm/cpu/armv7/exynos/clock.c65
1 files changed, 37 insertions, 28 deletions
diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
index df4d473..1c6baa1 100644
--- a/arch/arm/cpu/armv7/exynos/clock.c
+++ b/arch/arm/cpu/armv7/exynos/clock.c
@@ -1362,7 +1362,7 @@ int exynos5_set_i2s_clk_prescaler(unsigned int src_frq,
}
clrsetbits_le32(&clk->div_mau, AUDIO_0_RATIO_MASK,
(div & AUDIO_0_RATIO_MASK));
- } else if(i2s_id == 1) {
+ } else if (i2s_id == 1) {
if (div > AUDIO_1_RATIO_MASK) {
debug("%s: Frequency ratio is out of range\n",
__func__);
@@ -1579,45 +1579,49 @@ unsigned long get_pll_clk(int pllreg)
if (proid_is_exynos5420() || proid_is_exynos5800())
return exynos542x_get_pll_clk(pllreg);
return exynos5_get_pll_clk(pllreg);
- } else {
+ } else if (cpu_is_exynos4()) {
if (proid_is_exynos4412())
return exynos4x12_get_pll_clk(pllreg);
return exynos4_get_pll_clk(pllreg);
}
+
+ return 0;
}
unsigned long get_arm_clk(void)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
return exynos5_get_arm_clk();
- else {
+ } else if (cpu_is_exynos4()) {
if (proid_is_exynos4412())
return exynos4x12_get_arm_clk();
return exynos4_get_arm_clk();
}
+
+ return 0;
}
unsigned long get_i2c_clk(void)
{
- if (cpu_is_exynos5()) {
+ if (cpu_is_exynos5())
return clock_get_periph_rate(PERIPH_ID_I2C0);
- } else if (cpu_is_exynos4()) {
+ else if (cpu_is_exynos4())
return exynos4_get_i2c_clk();
- } else {
- debug("I2C clock is not set for this CPU\n");
- return 0;
- }
+
+ return 0;
}
unsigned long get_pwm_clk(void)
{
if (cpu_is_exynos5()) {
return clock_get_periph_rate(PERIPH_ID_PWM0);
- } else {
+ } else if (cpu_is_exynos4()) {
if (proid_is_exynos4412())
return exynos4x12_get_pwm_clk();
return exynos4_get_pwm_clk();
}
+
+ return 0;
}
unsigned long get_uart_clk(int dev_index)
@@ -1644,11 +1648,13 @@ unsigned long get_uart_clk(int dev_index)
if (cpu_is_exynos5()) {
return clock_get_periph_rate(id);
- } else {
+ } else if (cpu_is_exynos4()) {
if (proid_is_exynos4412())
return exynos4x12_get_uart_clk(dev_index);
return exynos4_get_uart_clk(dev_index);
}
+
+ return 0;
}
unsigned long get_mmc_clk(int dev_index)
@@ -1673,11 +1679,12 @@ unsigned long get_mmc_clk(int dev_index)
return -1;
}
- if (cpu_is_exynos5()) {
+ if (cpu_is_exynos5())
return clock_get_periph_rate(id);
- } else {
+ else if (cpu_is_exynos4())
return exynos4_get_mmc_clk(dev_index);
- }
+
+ return 0;
}
void set_mmc_clk(int dev_index, unsigned int div)
@@ -1691,16 +1698,16 @@ void set_mmc_clk(int dev_index, unsigned int div)
exynos5420_set_mmc_clk(dev_index, div);
else
exynos5_set_mmc_clk(dev_index, div);
- } else {
+ } else if (cpu_is_exynos4()) {
exynos4_set_mmc_clk(dev_index, div);
}
}
unsigned long get_lcd_clk(void)
{
- if (cpu_is_exynos4())
+ if (cpu_is_exynos4()) {
return exynos4_get_lcd_clk();
- else {
+ } else if (cpu_is_exynos5()) {
if (proid_is_exynos5420())
return exynos5420_get_lcd_clk();
else if (proid_is_exynos5800())
@@ -1708,13 +1715,15 @@ unsigned long get_lcd_clk(void)
else
return exynos5_get_lcd_clk();
}
+
+ return 0;
}
void set_lcd_clk(void)
{
- if (cpu_is_exynos4())
+ if (cpu_is_exynos4()) {
exynos4_set_lcd_clk();
- else {
+ } else if (cpu_is_exynos5()) {
if (proid_is_exynos5250())
exynos5_set_lcd_clk();
else if (proid_is_exynos5420())
@@ -1736,9 +1745,9 @@ int set_spi_clk(int periph_id, unsigned int rate)
if (proid_is_exynos5420() || proid_is_exynos5800())
return exynos5420_set_spi_clk(periph_id, rate);
return exynos5_set_spi_clk(periph_id, rate);
- } else {
- return 0;
}
+
+ return 0;
}
int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq,
@@ -1746,22 +1755,22 @@ int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq,
{
if (cpu_is_exynos5())
return exynos5_set_i2s_clk_prescaler(src_frq, dst_frq, i2s_id);
- else
- return 0;
+
+ return 0;
}
int set_i2s_clk_source(unsigned int i2s_id)
{
if (cpu_is_exynos5())
return exynos5_set_i2s_clk_source(i2s_id);
- else
- return 0;
+
+ return 0;
}
int set_epll_clk(unsigned long rate)
{
if (cpu_is_exynos5())
return exynos5_set_epll_clk(rate);
- else
- return 0;
+
+ return 0;
}