diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-12-20 09:53:52 +0100 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-01-09 02:24:16 +0100 |
| commit | 916b1f8c81ea563611288d1a9b082df3f723e4fe (patch) | |
| tree | d83ab92f45c87d35c65c9f252ec69daa09fa4341 /arch | |
| parent | ARM: mach-shmobile: clock-r8a7779: add DIV4 clock support (diff) | |
| download | linux-916b1f8c81ea563611288d1a9b082df3f723e4fe.tar.xz linux-916b1f8c81ea563611288d1a9b082df3f723e4fe.zip | |
ARM: mach-shmobile: clock-r8a7779: clkz/clkzs support
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-shmobile/clock-r8a7779.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c index 29c33063dc92..b4b0e8cd096d 100644 --- a/arch/arm/mach-shmobile/clock-r8a7779.c +++ b/arch/arm/mach-shmobile/clock-r8a7779.c @@ -102,9 +102,35 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP014] = SH_CLK_MSTP32(&div4_clks[DIV4_P], MSTPCR0, 14, 0), /* TMU2 */ }; +static unsigned long mul4_recalc(struct clk *clk) +{ + return clk->parent->rate * 4; +} + +static struct clk_ops mul4_clk_ops = { + .recalc = mul4_recalc, +}; + +struct clk clkz_clk = { + .ops = &mul4_clk_ops, + .parent = &div4_clks[DIV4_S], +}; + +struct clk clkzs_clk = { + /* clks x 4 / 4 = clks */ + .parent = &div4_clks[DIV4_S], +}; + +static struct clk *late_main_clks[] = { + &clkz_clk, + &clkzs_clk, +}; + static struct clk_lookup lookups[] = { /* main clocks */ CLKDEV_CON_ID("plla_clk", &plla_clk), + CLKDEV_CON_ID("clkz_clk", &clkz_clk), + CLKDEV_CON_ID("clkzs_clk", &clkzs_clk), /* DIV4 clocks */ CLKDEV_CON_ID("shyway_clk", &div4_clks[DIV4_S]), @@ -138,6 +164,9 @@ void __init r8a7779_clock_init(void) if (!ret) ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++) + ret = clk_register(late_main_clks[k]); + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); if (!ret) |