diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/ingenic/jz4740-cgu.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/clk/ingenic/jz4740-cgu.c b/drivers/clk/ingenic/jz4740-cgu.c index 0209ed6d412a..0e692ed632e5 100644 --- a/drivers/clk/ingenic/jz4740-cgu.c +++ b/drivers/clk/ingenic/jz4740-cgu.c @@ -26,6 +26,7 @@ #define CGU_REG_CPCCR 0x00 #define CGU_REG_LCR 0x04 #define CGU_REG_CPPCR 0x10 +#define CGU_REG_CLKGR 0x20 #define CGU_REG_SCR 0x24 #define CGU_REG_I2SCDR 0x60 #define CGU_REG_LPCDR 0x64 @@ -47,6 +48,9 @@ /* bits within the LCR register */ #define LCR_SLEEP (1 << 0) +/* bits within the CLKGR register */ +#define CLKGR_UDC (1 << 11) + static struct ingenic_cgu *cgu; static const s8 pll_od_encoding[4] = { @@ -242,3 +246,21 @@ void jz4740_clock_set_wait_mode(enum jz4740_wait_mode mode) writel(lcr, cgu->base + CGU_REG_LCR); } + +void jz4740_clock_udc_disable_auto_suspend(void) +{ + uint32_t clkgr = readl(cgu->base + CGU_REG_CLKGR); + + clkgr &= ~CLKGR_UDC; + writel(clkgr, cgu->base + CGU_REG_CLKGR); +} +EXPORT_SYMBOL_GPL(jz4740_clock_udc_disable_auto_suspend); + +void jz4740_clock_udc_enable_auto_suspend(void) +{ + uint32_t clkgr = readl(cgu->base + CGU_REG_CLKGR); + + clkgr |= CLKGR_UDC; + writel(clkgr, cgu->base + CGU_REG_CLKGR); +} +EXPORT_SYMBOL_GPL(jz4740_clock_udc_enable_auto_suspend); |