From 04a4fd0ae2c58943a7435de879b9714c96a1e96a Mon Sep 17 00:00:00 2001 From: Seungwhan Youn Date: Thu, 14 Oct 2010 10:35:23 +0900 Subject: ARM: S5PC100: Add SCLK_SPDIF clock This patch add SCLK_SPDIF clock to support source clock of S/PDIF on S5PC100. Signed-off-by: Seungwhan Youn Acked-by: Jassi Brar Acked-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/mach-s5pc100/clock.c | 59 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) (limited to 'arch/arm/mach-s5pc100') diff --git a/arch/arm/mach-s5pc100/clock.c b/arch/arm/mach-s5pc100/clock.c index 42b7138..306ae74 100644 --- a/arch/arm/mach-s5pc100/clock.c +++ b/arch/arm/mach-s5pc100/clock.c @@ -980,6 +980,64 @@ struct clksrc_sources clk_src_pwi = { .nr_sources = ARRAY_SIZE(clk_src_pwi_list), }; +static struct clk *clk_sclk_spdif_list[] = { + [0] = &clk_sclk_audio0.clk, + [1] = &clk_sclk_audio1.clk, + [2] = &clk_sclk_audio2.clk, +}; + +struct clksrc_sources clk_src_sclk_spdif = { + .sources = clk_sclk_spdif_list, + .nr_sources = ARRAY_SIZE(clk_sclk_spdif_list), +}; + +static int s5pc100_spdif_set_rate(struct clk *clk, unsigned long rate) +{ + struct clk *pclk; + int ret; + + pclk = clk_get_parent(clk); + if (IS_ERR(pclk)) + return -EINVAL; + + ret = pclk->ops->set_rate(pclk, rate); + clk_put(pclk); + + return ret; +} + +static unsigned long s5pc100_spdif_get_rate(struct clk *clk) +{ + struct clk *pclk; + int rate; + + pclk = clk_get_parent(clk); + if (IS_ERR(pclk)) + return -EINVAL; + + rate = pclk->ops->get_rate(clk); + clk_put(pclk); + + return rate; +} + +static struct clk_ops s5pc100_sclk_spdif_ops = { + .set_rate = s5pc100_spdif_set_rate, + .get_rate = s5pc100_spdif_get_rate, +}; + +static struct clksrc_clk clk_sclk_spdif = { + .clk = { + .name = "sclk_spdif", + .id = -1, + .ctrlbit = (1 << 11), + .enable = s5pc100_sclk1_ctrl, + .ops = &s5pc100_sclk_spdif_ops, + }, + .sources = &clk_src_sclk_spdif, + .reg_src = { .reg = S5P_CLK_SRC3, .shift = 24, .size = 2 }, +}; + static struct clksrc_clk clksrcs[] = { { .clk = { @@ -1185,6 +1243,7 @@ static struct clksrc_clk *sysclks[] = { &clk_sclk_audio0, &clk_sclk_audio1, &clk_sclk_audio2, + &clk_sclk_spdif, }; void __init_or_cpufreq s5pc100_setup_clocks(void) -- cgit v1.1