From: Jaecheol Lee <[email protected]> FOUT APLL clock is used as a source of ARM core clock. So we need that the clock source can be changed dynamically by using CPUFREQ driver. This patch can give correct frequency when calling clk_get_rate() function.
Signed-off-by: Jaecheol Lee <[email protected]> Signed-off-by: Sangwook Ju <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> --- arch/arm/mach-s5pv310/clock.c | 16 +++++++++++++++- 1 files changed, 15 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-s5pv310/clock.c b/arch/arm/mach-s5pv310/clock.c index fdce2b4..752a07e 100644 --- a/arch/arm/mach-s5pv310/clock.c +++ b/arch/arm/mach-s5pv310/clock.c @@ -990,6 +990,17 @@ static struct clksrc_clk *sysclks[] = { &clk_dout_mmc4, }; +static int xtal_rate; + +static unsigned long s5pv310_fout_apll_get_rate(struct clk *clk) +{ + return s5p_get_pll45xx(xtal_rate, __raw_readl(S5P_APLL_CON0), pll_4508); +} + +static struct clk_ops s5pv310_fout_apll_ops = { + .get_rate = s5pv310_fout_apll_get_rate, +}; + void __init_or_cpufreq s5pv310_setup_clocks(void) { struct clk *xtal_clk; @@ -1013,6 +1024,9 @@ void __init_or_cpufreq s5pv310_setup_clocks(void) BUG_ON(IS_ERR(xtal_clk)); xtal = clk_get_rate(xtal_clk); + + xtal_rate = xtal; + clk_put(xtal_clk); printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal); @@ -1026,7 +1040,7 @@ void __init_or_cpufreq s5pv310_setup_clocks(void) vpll = s5p_get_pll46xx(vpllsrc, __raw_readl(S5P_VPLL_CON0), __raw_readl(S5P_VPLL_CON1), pll_4650); - clk_fout_apll.rate = apll; + clk_fout_apll.ops = &s5pv310_fout_apll_ops; clk_fout_mpll.rate = mpll; clk_fout_epll.rate = epll; clk_fout_vpll.rate = vpll; -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
