diff options
author | Peter De Schrijver <pdeschrijver@nvidia.com> | 2013-09-02 14:22:02 +0200 |
---|---|---|
committer | Peter De Schrijver <pdeschrijver@nvidia.com> | 2013-11-26 17:46:18 +0100 |
commit | 343a607cb79259429afbb9820bf524d33084e66c (patch) | |
tree | 508757a525821d7aad6c6d24caa72447c95907bf /drivers/clk/tegra/clk-tegra20.c | |
parent | clk: tegra: simplify periph clock data (diff) | |
download | linux-343a607cb79259429afbb9820bf524d33084e66c.tar.xz linux-343a607cb79259429afbb9820bf524d33084e66c.zip |
clk: tegra: common periph_clk_enb_refcnt and clks
This patch makes periph_clk_enb_refcnt a global array, dynamically allocated
at boottime. It simplifies the macros somewhat and allows clocks common to
several Tegra SoCs to be defined in a separate files. Also the clks array
becomes global and dynamically allocated which allows the DT registration to
be moved to a generic funcion.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra/clk-tegra20.c')
-rw-r--r-- | drivers/clk/tegra/clk-tegra20.c | 36 |
1 files changed, 9 insertions, 27 deletions
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c index 929a46278d83..6bf5c339ab43 100644 --- a/drivers/clk/tegra/clk-tegra20.c +++ b/drivers/clk/tegra/clk-tegra20.c @@ -25,8 +25,6 @@ #include "clk.h" -#define CLK_OUT_ENB_NUM 3 - #define OSC_CTRL 0x50 #define OSC_CTRL_OSC_FREQ_MASK (3<<30) #define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) @@ -170,8 +168,6 @@ static struct cpu_clk_suspend_context { } tegra20_cpu_clk_sctx; #endif -static int periph_clk_enb_refcnt[CLK_OUT_ENB_NUM * 32]; - static void __iomem *clk_base; static void __iomem *pmc_base; @@ -182,21 +178,21 @@ static DEFINE_SPINLOCK(sysrate_lock); _clk_num, _gate_flags, _clk_id) \ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \ 30, 2, 0, 0, 8, 1, TEGRA_DIVIDER_ROUND_UP, \ - _clk_num, periph_clk_enb_refcnt, \ + _clk_num, \ _gate_flags, _clk_id) #define TEGRA_INIT_DATA_INT(_name, _con_id, _dev_id, _parents, _offset, \ _clk_num, _gate_flags, _clk_id) \ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \ 30, 2, 0, 0, 8, 1, TEGRA_DIVIDER_INT, \ - _clk_num, periph_clk_enb_refcnt, _gate_flags, \ + _clk_num, _gate_flags, \ _clk_id) #define TEGRA_INIT_DATA_DIV16(_name, _con_id, _dev_id, _parents, _offset, \ _clk_num, _gate_flags, _clk_id) \ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \ 30, 2, 0, 0, 16, 0, TEGRA_DIVIDER_ROUND_UP, \ - _clk_num, periph_clk_enb_refcnt, _gate_flags, \ + _clk_num, _gate_flags, \ _clk_id) #define TEGRA_INIT_DATA_NODIV(_name, _con_id, _dev_id, _parents, _offset, \ @@ -204,7 +200,7 @@ static DEFINE_SPINLOCK(sysrate_lock); _gate_flags, _clk_id) \ TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parents, _offset, \ _mux_shift, _mux_width, 0, 0, 0, 0, 0, \ - _clk_num, periph_clk_enb_refcnt, _gate_flags, \ + _clk_num, _gate_flags, \ _clk_id) /* IDs assigned here must be in sync with DT bindings definition @@ -226,8 +222,7 @@ enum tegra20_clk { pll_x, cop, audio, pll_ref, twd, clk_max, }; -static struct clk *clks[clk_max]; -static struct clk_onecell_data clk_data; +static struct clk **clks; static struct tegra_clk_pll_freq_table pll_c_freq_table[] = { { 12000000, 600000000, 600, 12, 0, 8 }, @@ -808,7 +803,7 @@ static struct tegra_periph_init_data tegra_periph_clk_list[] = { TEGRA_INIT_DATA_DIV16("i2c3", "div-clk", "tegra-i2c.2", mux_pllpcm_clkm, CLK_SOURCE_I2C3, 67, TEGRA_PERIPH_ON_APB, i2c3), TEGRA_INIT_DATA_DIV16("dvc", "div-clk", "tegra-i2c.3", mux_pllpcm_clkm, CLK_SOURCE_DVC, 47, TEGRA_PERIPH_ON_APB, dvc), TEGRA_INIT_DATA_MUX("hdmi", NULL, "hdmi", mux_pllpdc_clkm, CLK_SOURCE_HDMI, 51, 0, hdmi), - TEGRA_INIT_DATA("pwm", NULL, "tegra-pwm", pwm_parents, CLK_SOURCE_PWM, 28, 3, 0, 0, 8, 1, 0, 17, periph_clk_enb_refcnt, TEGRA_PERIPH_ON_APB, pwm), + TEGRA_INIT_DATA("pwm", NULL, "tegra-pwm", pwm_parents, CLK_SOURCE_PWM, 28, 3, 0, 0, 8, 1, 0, 17, TEGRA_PERIPH_ON_APB, pwm), }; static struct tegra_periph_init_data tegra_periph_nodiv_clk_list[] = { @@ -1232,7 +1227,6 @@ static const struct of_device_id pmc_match[] __initconst = { static void __init tegra20_clock_init(struct device_node *np) { - int i; struct device_node *node; clk_base = of_iomap(np, 0); @@ -1253,7 +1247,8 @@ static void __init tegra20_clock_init(struct device_node *np) BUG(); } - if (tegra_clk_set_periph_banks(TEGRA20_CLK_PERIPH_BANKS) < 0) + clks = tegra_clk_init(clk_max, TEGRA20_CLK_PERIPH_BANKS); + if (!clks) return; tegra20_osc_clk_init(); @@ -1264,22 +1259,9 @@ static void __init tegra20_clock_init(struct device_node *np) tegra20_periph_clk_init(); tegra20_audio_clk_init(); - - for (i = 0; i < ARRAY_SIZE(clks); i++) { - if (IS_ERR(clks[i])) { - pr_err("Tegra20 clk %d: register failed with %ld\n", - i, PTR_ERR(clks[i])); - BUG(); - } - if (!clks[i]) - clks[i] = ERR_PTR(-EINVAL); - } - tegra_init_dup_clks(tegra_clk_duplicates, clks, clk_max); - clk_data.clks = clks; - clk_data.clk_num = ARRAY_SIZE(clks); - of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + tegra_add_of_provider(np); tegra_clk_apply_init_table = tegra20_clock_apply_init_table; |