diff options
Diffstat (limited to 'arch/arm/mach-mx6/bus_freq.c')
| -rw-r--r-- | arch/arm/mach-mx6/bus_freq.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/mach-mx6/bus_freq.c b/arch/arm/mach-mx6/bus_freq.c index 9d18423c85c5..f25882bd40d1 100644 --- a/arch/arm/mach-mx6/bus_freq.c +++ b/arch/arm/mach-mx6/bus_freq.c @@ -110,7 +110,7 @@ static struct clk *pll1; static struct clk *pll1_sw_clk; static struct clk *pll3_sw_clk; static struct clk *pll2_200; -static struct clk *mmdc_ch0_axi; +struct clk *mmdc_ch0_axi; static struct clk *pll3_540; static struct delayed_work low_bus_freq_handler; @@ -155,8 +155,6 @@ void reduce_bus_freq(void) u32 div; unsigned long flags; - spin_lock_irqsave(&freq_lock, flags); - if (high_bus_freq_mode) { /* Set periph_clk to be sourced from OSC_CLK */ /* Set AXI to 24MHz. */ @@ -170,8 +168,11 @@ void reduce_bus_freq(void) if (lp_audio_freq) { /* PLL2 is on in this mode, as DDR is at 50MHz. */ /* Now change DDR freq while running from IRAM. */ + + spin_lock_irqsave(&freq_lock, flags); mx6sl_ddr_freq_change_iram(DDR_AUDIO_CLK, low_bus_freq_mode); + spin_unlock_irqrestore(&freq_lock, flags); if (low_bus_freq_mode) { /* Swtich ARM to run off PLL2_PFD2_400MHz @@ -213,14 +214,15 @@ void reduce_bus_freq(void) ; clk_set_parent(pll1_sw_clk, pll1); + spin_lock_irqsave(&freq_lock, flags); /* Now change DDR freq while running from IRAM. */ mx6sl_ddr_freq_change_iram(LPAPM_CLK, low_bus_freq_mode); + spin_unlock_irqrestore(&freq_lock, flags); low_bus_freq_mode = 1; audio_bus_freq_mode = 0; } - spin_unlock_irqrestore(&freq_lock, flags); } high_bus_freq_mode = 0; @@ -325,6 +327,7 @@ int set_high_bus_freq(int high_bus_freq) spin_lock_irqsave(&freq_lock, flags); /* Change DDR freq in IRAM. */ mx6sl_ddr_freq_change_iram(ddr_normal_rate, low_bus_freq_mode); + spin_unlock_irqrestore(&freq_lock, flags); /* Set periph_clk to be sourced from pll2_pfd2_400M */ /* First need to set the divider before changing the */ @@ -348,7 +351,6 @@ int set_high_bus_freq(int high_bus_freq) high_bus_freq_mode = 1; low_bus_freq_mode = 0; audio_bus_freq_mode = 0; - spin_unlock_irqrestore(&freq_lock, flags); } else { clk_enable(pll3); if (high_bus_freq) { |