diff options
Diffstat (limited to 'drivers/clk/samsung/clk-exynos3250.c')
| -rw-r--r-- | drivers/clk/samsung/clk-exynos3250.c | 217 |
1 files changed, 47 insertions, 170 deletions
diff --git a/drivers/clk/samsung/clk-exynos3250.c b/drivers/clk/samsung/clk-exynos3250.c index 6e6cca392082..cc4c348d8a24 100644 --- a/drivers/clk/samsung/clk-exynos3250.c +++ b/drivers/clk/samsung/clk-exynos3250.c @@ -104,27 +104,6 @@ #define PWR_CTRL1_USE_CORE1_WFI (1 << 1) #define PWR_CTRL1_USE_CORE0_WFI (1 << 0) -/* list of PLLs to be registered */ -enum exynos3250_plls { - apll, mpll, vpll, upll, - nr_plls -}; - -/* list of PLLs in DMC block to be registered */ -enum exynos3250_dmc_plls { - bpll, epll, - nr_dmc_plls -}; - -static void __iomem *reg_base; -static void __iomem *dmc_reg_base; - -/* - * Support for CMU save/restore across system suspends - */ -#ifdef CONFIG_PM_SLEEP -static struct samsung_clk_reg_dump *exynos3250_clk_regs; - static unsigned long exynos3250_cmu_clk_regs[] __initdata = { SRC_LEFTBUS, DIV_LEFTBUS, @@ -195,43 +174,6 @@ static unsigned long exynos3250_cmu_clk_regs[] __initdata = { PWR_CTRL2, }; -static int exynos3250_clk_suspend(void) -{ - samsung_clk_save(reg_base, exynos3250_clk_regs, - ARRAY_SIZE(exynos3250_cmu_clk_regs)); - return 0; -} - -static void exynos3250_clk_resume(void) -{ - samsung_clk_restore(reg_base, exynos3250_clk_regs, - ARRAY_SIZE(exynos3250_cmu_clk_regs)); -} - -static struct syscore_ops exynos3250_clk_syscore_ops = { - .suspend = exynos3250_clk_suspend, - .resume = exynos3250_clk_resume, -}; - -static void exynos3250_clk_sleep_init(void) -{ - exynos3250_clk_regs = - samsung_clk_alloc_reg_dump(exynos3250_cmu_clk_regs, - ARRAY_SIZE(exynos3250_cmu_clk_regs)); - if (!exynos3250_clk_regs) { - pr_warn("%s: Failed to allocate sleep save data\n", __func__); - goto err; - } - - register_syscore_ops(&exynos3250_clk_syscore_ops); - return; -err: - kfree(exynos3250_clk_regs); -} -#else -static inline void exynos3250_clk_sleep_init(void) { } -#endif - /* list of all parent clock list */ PNAME(mout_vpllsrc_p) = { "fin_pll", }; @@ -782,18 +724,18 @@ static struct samsung_pll_rate_table exynos3250_vpll_rates[] = { { /* sentinel */ } }; -static struct samsung_pll_clock exynos3250_plls[nr_plls] __initdata = { - [apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", - APLL_LOCK, APLL_CON0, NULL), - [mpll] = PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", - MPLL_LOCK, MPLL_CON0, NULL), - [vpll] = PLL(pll_36xx, CLK_FOUT_VPLL, "fout_vpll", "fin_pll", - VPLL_LOCK, VPLL_CON0, NULL), - [upll] = PLL(pll_35xx, CLK_FOUT_UPLL, "fout_upll", "fin_pll", - UPLL_LOCK, UPLL_CON0, NULL), +static struct samsung_pll_clock exynos3250_plls[] __initdata = { + PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", + APLL_LOCK, APLL_CON0, exynos3250_pll_rates), + PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", + MPLL_LOCK, MPLL_CON0, exynos3250_pll_rates), + PLL(pll_36xx, CLK_FOUT_VPLL, "fout_vpll", "fin_pll", + VPLL_LOCK, VPLL_CON0, exynos3250_vpll_rates), + PLL(pll_35xx, CLK_FOUT_UPLL, "fout_upll", "fin_pll", + UPLL_LOCK, UPLL_CON0, exynos3250_pll_rates), }; -static void __init exynos3_core_down_clock(void) +static void __init exynos3_core_down_clock(void __iomem *reg_base) { unsigned int tmp; @@ -814,38 +756,31 @@ static void __init exynos3_core_down_clock(void) __raw_writel(0x0, reg_base + PWR_CTRL2); } +static struct samsung_cmu_info cmu_info __initdata = { + .pll_clks = exynos3250_plls, + .nr_pll_clks = ARRAY_SIZE(exynos3250_plls), + .mux_clks = mux_clks, + .nr_mux_clks = ARRAY_SIZE(mux_clks), + .div_clks = div_clks, + .nr_div_clks = ARRAY_SIZE(div_clks), + .gate_clks = gate_clks, + .nr_gate_clks = ARRAY_SIZE(gate_clks), + .fixed_factor_clks = fixed_factor_clks, + .nr_fixed_factor_clks = ARRAY_SIZE(fixed_factor_clks), + .nr_clk_ids = CLK_NR_CLKS, + .clk_regs = exynos3250_cmu_clk_regs, + .nr_clk_regs = ARRAY_SIZE(exynos3250_cmu_clk_regs), +}; + static void __init exynos3250_cmu_init(struct device_node *np) { struct samsung_clk_provider *ctx; - reg_base = of_iomap(np, 0); - if (!reg_base) - panic("%s: failed to map registers\n", __func__); - - ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); + ctx = samsung_cmu_register_one(np, &cmu_info); if (!ctx) - panic("%s: unable to allocate context.\n", __func__); - - samsung_clk_register_fixed_factor(ctx, fixed_factor_clks, - ARRAY_SIZE(fixed_factor_clks)); - - exynos3250_plls[apll].rate_table = exynos3250_pll_rates; - exynos3250_plls[mpll].rate_table = exynos3250_pll_rates; - exynos3250_plls[vpll].rate_table = exynos3250_vpll_rates; - exynos3250_plls[upll].rate_table = exynos3250_pll_rates; - - samsung_clk_register_pll(ctx, exynos3250_plls, - ARRAY_SIZE(exynos3250_plls), reg_base); - - samsung_clk_register_mux(ctx, mux_clks, ARRAY_SIZE(mux_clks)); - samsung_clk_register_div(ctx, div_clks, ARRAY_SIZE(div_clks)); - samsung_clk_register_gate(ctx, gate_clks, ARRAY_SIZE(gate_clks)); - - exynos3_core_down_clock(); + return; - exynos3250_clk_sleep_init(); - - samsung_clk_of_add_provider(np, ctx); + exynos3_core_down_clock(ctx->reg_base); } CLK_OF_DECLARE(exynos3250_cmu, "samsung,exynos3250-cmu", exynos3250_cmu_init); @@ -872,12 +807,6 @@ CLK_OF_DECLARE(exynos3250_cmu, "samsung,exynos3250-cmu", exynos3250_cmu_init); #define EPLL_CON2 0x111c #define SRC_EPLL 0x1120 -/* - * Support for CMU save/restore across system suspends - */ -#ifdef CONFIG_PM_SLEEP -static struct samsung_clk_reg_dump *exynos3250_dmc_clk_regs; - static unsigned long exynos3250_cmu_dmc_clk_regs[] __initdata = { BPLL_LOCK, BPLL_CON0, @@ -899,43 +828,6 @@ static unsigned long exynos3250_cmu_dmc_clk_regs[] __initdata = { SRC_EPLL, }; -static int exynos3250_dmc_clk_suspend(void) -{ - samsung_clk_save(dmc_reg_base, exynos3250_dmc_clk_regs, - ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs)); - return 0; -} - -static void exynos3250_dmc_clk_resume(void) -{ - samsung_clk_restore(dmc_reg_base, exynos3250_dmc_clk_regs, - ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs)); -} - -static struct syscore_ops exynos3250_dmc_clk_syscore_ops = { - .suspend = exynos3250_dmc_clk_suspend, - .resume = exynos3250_dmc_clk_resume, -}; - -static void exynos3250_dmc_clk_sleep_init(void) -{ - exynos3250_dmc_clk_regs = - samsung_clk_alloc_reg_dump(exynos3250_cmu_dmc_clk_regs, - ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs)); - if (!exynos3250_dmc_clk_regs) { - pr_warn("%s: Failed to allocate sleep save data\n", __func__); - goto err; - } - - register_syscore_ops(&exynos3250_dmc_clk_syscore_ops); - return; -err: - kfree(exynos3250_dmc_clk_regs); -} -#else -static inline void exynos3250_dmc_clk_sleep_init(void) { } -#endif - PNAME(mout_epll_p) = { "fin_pll", "fout_epll", }; PNAME(mout_bpll_p) = { "fin_pll", "fout_bpll", }; PNAME(mout_mpll_mif_p) = { "fin_pll", "sclk_mpll_mif", }; @@ -977,43 +869,28 @@ static struct samsung_div_clock dmc_div_clks[] __initdata = { DIV(CLK_DIV_DMCD, "div_dmcd", "div_dmc", DIV_DMC1, 11, 3), }; -static struct samsung_pll_clock exynos3250_dmc_plls[nr_dmc_plls] __initdata = { - [bpll] = PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll", - BPLL_LOCK, BPLL_CON0, NULL), - [epll] = PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll", - EPLL_LOCK, EPLL_CON0, NULL), +static struct samsung_pll_clock exynos3250_dmc_plls[] __initdata = { + PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll", + BPLL_LOCK, BPLL_CON0, exynos3250_pll_rates), + PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll", + EPLL_LOCK, EPLL_CON0, exynos3250_epll_rates), +}; + +static struct samsung_cmu_info dmc_cmu_info __initdata = { + .pll_clks = exynos3250_dmc_plls, + .nr_pll_clks = ARRAY_SIZE(exynos3250_dmc_plls), + .mux_clks = dmc_mux_clks, + .nr_mux_clks = ARRAY_SIZE(dmc_mux_clks), + .div_clks = dmc_div_clks, + .nr_div_clks = ARRAY_SIZE(dmc_div_clks), + .nr_clk_ids = NR_CLKS_DMC, + .clk_regs = exynos3250_cmu_dmc_clk_regs, + .nr_clk_regs = ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs), }; static void __init exynos3250_cmu_dmc_init(struct device_node *np) { - struct samsung_clk_provider *ctx; - - dmc_reg_base = of_iomap(np, 0); - if (!dmc_reg_base) - panic("%s: failed to map registers\n", __func__); - - ctx = samsung_clk_init(np, dmc_reg_base, NR_CLKS_DMC); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); - - exynos3250_dmc_plls[bpll].rate_table = exynos3250_pll_rates; - exynos3250_dmc_plls[epll].rate_table = exynos3250_epll_rates; - - pr_err("CLK registering epll bpll: %d, %d, %d, %d\n", - exynos3250_dmc_plls[bpll].rate_table[0].rate, - exynos3250_dmc_plls[bpll].rate_table[0].mdiv, - exynos3250_dmc_plls[bpll].rate_table[0].pdiv, - exynos3250_dmc_plls[bpll].rate_table[0].sdiv - ); - samsung_clk_register_pll(ctx, exynos3250_dmc_plls, - ARRAY_SIZE(exynos3250_dmc_plls), dmc_reg_base); - - samsung_clk_register_mux(ctx, dmc_mux_clks, ARRAY_SIZE(dmc_mux_clks)); - samsung_clk_register_div(ctx, dmc_div_clks, ARRAY_SIZE(dmc_div_clks)); - - exynos3250_dmc_clk_sleep_init(); - - samsung_clk_of_add_provider(np, ctx); + samsung_cmu_register_one(np, &dmc_cmu_info); } CLK_OF_DECLARE(exynos3250_cmu_dmc, "samsung,exynos3250-cmu-dmc", exynos3250_cmu_dmc_init); |