diff options
Diffstat (limited to 'drivers/clk/rockchip')
| -rw-r--r-- | drivers/clk/rockchip/Kconfig | 78 | ||||
| -rw-r--r-- | drivers/clk/rockchip/Makefile | 42 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk-ddr.c | 1 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk-half-divider.c | 18 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk-rk3308.c | 1 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk-rk3399.c | 56 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk.c | 113 | ||||
| -rw-r--r-- | drivers/clk/rockchip/softrst.c | 7 |
8 files changed, 231 insertions, 85 deletions
diff --git a/drivers/clk/rockchip/Kconfig b/drivers/clk/rockchip/Kconfig new file mode 100644 index 000000000000..47cd6c5de837 --- /dev/null +++ b/drivers/clk/rockchip/Kconfig @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: GPL-2.0 +# common clock support for ROCKCHIP SoC family. + +config COMMON_CLK_ROCKCHIP + bool "Rockchip clock controller common support" + depends on ARCH_ROCKCHIP + default ARCH_ROCKCHIP + help + Say y here to enable common clock controller for Rockchip platforms. + +if COMMON_CLK_ROCKCHIP +config CLK_PX30 + bool "Rockchip PX30 clock controller support" + default y + help + Build the driver for PX30 Clock Driver. + +config CLK_RV110X + bool "Rockchip RV110x clock controller support" + default y + help + Build the driver for RV110x Clock Driver. + +config CLK_RK3036 + bool "Rockchip RK3036 clock controller support" + default y + help + Build the driver for RK3036 Clock Driver. + +config CLK_RK312X + bool "Rockchip RK312x clock controller support" + default y + help + Build the driver for RK312x Clock Driver. + +config CLK_RK3188 + bool "Rockchip RK3188 clock controller support" + default y + help + Build the driver for RK3188 Clock Driver. + +config CLK_RK322X + bool "Rockchip RK322x clock controller support" + default y + help + Build the driver for RK322x Clock Driver. + +config CLK_RK3288 + bool "Rockchip RK3288 clock controller support" + depends on ARM + default y + help + Build the driver for RK3288 Clock Driver. + +config CLK_RK3308 + bool "Rockchip RK3308 clock controller support" + default y + help + Build the driver for RK3308 Clock Driver. + +config CLK_RK3328 + bool "Rockchip RK3328 clock controller support" + default y + help + Build the driver for RK3328 Clock Driver. + +config CLK_RK3368 + bool "Rockchip RK3368 clock controller support" + default y + help + Build the driver for RK3368 Clock Driver. + +config CLK_RK3399 + tristate "Rockchip RK3399 clock controller support" + default y + help + Build the driver for RK3399 Clock Driver. +endif diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile index 7c5b5813a87c..a99e4d9bbae1 100644 --- a/drivers/clk/rockchip/Makefile +++ b/drivers/clk/rockchip/Makefile @@ -3,24 +3,26 @@ # Rockchip Clock specific Makefile # -obj-y += clk.o -obj-y += clk-pll.o -obj-y += clk-cpu.o -obj-y += clk-half-divider.o -obj-y += clk-inverter.o -obj-y += clk-mmc-phase.o -obj-y += clk-muxgrf.o -obj-y += clk-ddr.o -obj-$(CONFIG_RESET_CONTROLLER) += softrst.o +obj-$(CONFIG_COMMON_CLK_ROCKCHIP) += clk-rockchip.o -obj-y += clk-px30.o -obj-y += clk-rv1108.o -obj-y += clk-rk3036.o -obj-y += clk-rk3128.o -obj-y += clk-rk3188.o -obj-y += clk-rk3228.o -obj-y += clk-rk3288.o -obj-y += clk-rk3308.o -obj-y += clk-rk3328.o -obj-y += clk-rk3368.o -obj-y += clk-rk3399.o +clk-rockchip-y += clk.o +clk-rockchip-y += clk-pll.o +clk-rockchip-y += clk-cpu.o +clk-rockchip-y += clk-half-divider.o +clk-rockchip-y += clk-inverter.o +clk-rockchip-y += clk-mmc-phase.o +clk-rockchip-y += clk-muxgrf.o +clk-rockchip-y += clk-ddr.o +clk-rockchip-$(CONFIG_RESET_CONTROLLER) += softrst.o + +obj-$(CONFIG_CLK_PX30) += clk-px30.o +obj-$(CONFIG_CLK_RV110X) += clk-rv1108.o +obj-$(CONFIG_CLK_RK3036) += clk-rk3036.o +obj-$(CONFIG_CLK_RK312X) += clk-rk3128.o +obj-$(CONFIG_CLK_RK3188) += clk-rk3188.o +obj-$(CONFIG_CLK_RK322X) += clk-rk3228.o +obj-$(CONFIG_CLK_RK3288) += clk-rk3288.o +obj-$(CONFIG_CLK_RK3308) += clk-rk3308.o +obj-$(CONFIG_CLK_RK3328) += clk-rk3328.o +obj-$(CONFIG_CLK_RK3368) += clk-rk3368.o +obj-$(CONFIG_CLK_RK3399) += clk-rk3399.o diff --git a/drivers/clk/rockchip/clk-ddr.c b/drivers/clk/rockchip/clk-ddr.c index 9273bce4d7b6..86718c54e56b 100644 --- a/drivers/clk/rockchip/clk-ddr.c +++ b/drivers/clk/rockchip/clk-ddr.c @@ -136,3 +136,4 @@ struct clk *rockchip_clk_register_ddrclk(const char *name, int flags, return clk; } +EXPORT_SYMBOL_GPL(rockchip_clk_register_ddrclk); diff --git a/drivers/clk/rockchip/clk-half-divider.c b/drivers/clk/rockchip/clk-half-divider.c index b333fc28c94b..ccd5c270c213 100644 --- a/drivers/clk/rockchip/clk-half-divider.c +++ b/drivers/clk/rockchip/clk-half-divider.c @@ -166,7 +166,7 @@ struct clk *rockchip_clk_register_halfdiv(const char *name, unsigned long flags, spinlock_t *lock) { - struct clk *clk; + struct clk_hw *hw = ERR_PTR(-ENOMEM); struct clk_mux *mux = NULL; struct clk_gate *gate = NULL; struct clk_divider *div = NULL; @@ -212,16 +212,18 @@ struct clk *rockchip_clk_register_halfdiv(const char *name, div_ops = &clk_half_divider_ops; } - clk = clk_register_composite(NULL, name, parent_names, num_parents, - mux ? &mux->hw : NULL, mux_ops, - div ? &div->hw : NULL, div_ops, - gate ? &gate->hw : NULL, gate_ops, - flags); + hw = clk_hw_register_composite(NULL, name, parent_names, num_parents, + mux ? &mux->hw : NULL, mux_ops, + div ? &div->hw : NULL, div_ops, + gate ? &gate->hw : NULL, gate_ops, + flags); + if (IS_ERR(hw)) + goto err_div; - return clk; + return hw->clk; err_div: kfree(gate); err_gate: kfree(mux); - return ERR_PTR(-ENOMEM); + return ERR_CAST(hw); } diff --git a/drivers/clk/rockchip/clk-rk3308.c b/drivers/clk/rockchip/clk-rk3308.c index b0baf87a283e..5bf15f2a44b7 100644 --- a/drivers/clk/rockchip/clk-rk3308.c +++ b/drivers/clk/rockchip/clk-rk3308.c @@ -133,7 +133,6 @@ PNAME(mux_uart1_p) = { "clk_uart1_src", "dummy", "clk_uart1_frac" }; PNAME(mux_uart2_p) = { "clk_uart2_src", "dummy", "clk_uart2_frac" }; PNAME(mux_uart3_p) = { "clk_uart3_src", "dummy", "clk_uart3_frac" }; PNAME(mux_uart4_p) = { "clk_uart4_src", "dummy", "clk_uart4_frac" }; -PNAME(mux_timer_src_p) = { "xin24m", "clk_rtc32k" }; PNAME(mux_dclk_vop_p) = { "dclk_vop_src", "dclk_vop_frac", "xin24m" }; PNAME(mux_nandc_p) = { "clk_nandc_div", "clk_nandc_div50" }; PNAME(mux_sdmmc_p) = { "clk_sdmmc_div", "clk_sdmmc_div50" }; diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c index ce1d2446f142..7df2f1e00347 100644 --- a/drivers/clk/rockchip/clk-rk3399.c +++ b/drivers/clk/rockchip/clk-rk3399.c @@ -5,9 +5,11 @@ */ #include <linux/clk-provider.h> +#include <linux/module.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <dt-bindings/clock/rk3399-cru.h> @@ -1600,3 +1602,57 @@ static void __init rk3399_pmu_clk_init(struct device_node *np) rockchip_clk_of_add_provider(np, ctx); } CLK_OF_DECLARE(rk3399_cru_pmu, "rockchip,rk3399-pmucru", rk3399_pmu_clk_init); + +struct clk_rk3399_inits { + void (*inits)(struct device_node *np); +}; + +static const struct clk_rk3399_inits clk_rk3399_pmucru_init = { + .inits = rk3399_pmu_clk_init, +}; + +static const struct clk_rk3399_inits clk_rk3399_cru_init = { + .inits = rk3399_clk_init, +}; + +static const struct of_device_id clk_rk3399_match_table[] = { + { + .compatible = "rockchip,rk3399-cru", + .data = &clk_rk3399_cru_init, + }, { + .compatible = "rockchip,rk3399-pmucru", + .data = &clk_rk3399_pmucru_init, + }, + { } +}; +MODULE_DEVICE_TABLE(of, clk_rk3399_match_table); + +static int __init clk_rk3399_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + const struct of_device_id *match; + const struct clk_rk3399_inits *init_data; + + match = of_match_device(clk_rk3399_match_table, &pdev->dev); + if (!match || !match->data) + return -EINVAL; + + init_data = match->data; + if (init_data->inits) + init_data->inits(np); + + return 0; +} + +static struct platform_driver clk_rk3399_driver = { + .driver = { + .name = "clk-rk3399", + .of_match_table = clk_rk3399_match_table, + .suppress_bind_attrs = true, + }, +}; +builtin_platform_driver_probe(clk_rk3399_driver, clk_rk3399_probe); + +MODULE_DESCRIPTION("Rockchip RK3399 Clock Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:clk-rk3399"); diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index 546e810c3560..b443169dd408 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -43,7 +43,7 @@ static struct clk *rockchip_clk_register_branch(const char *name, u8 gate_shift, u8 gate_flags, unsigned long flags, spinlock_t *lock) { - struct clk *clk; + struct clk_hw *hw; struct clk_mux *mux = NULL; struct clk_gate *gate = NULL; struct clk_divider *div = NULL; @@ -100,20 +100,18 @@ static struct clk *rockchip_clk_register_branch(const char *name, : &clk_divider_ops; } - clk = clk_register_composite(NULL, name, parent_names, num_parents, - mux ? &mux->hw : NULL, mux_ops, - div ? &div->hw : NULL, div_ops, - gate ? &gate->hw : NULL, gate_ops, - flags); - - if (IS_ERR(clk)) { - ret = PTR_ERR(clk); - goto err_composite; + hw = clk_hw_register_composite(NULL, name, parent_names, num_parents, + mux ? &mux->hw : NULL, mux_ops, + div ? &div->hw : NULL, div_ops, + gate ? &gate->hw : NULL, gate_ops, + flags); + if (IS_ERR(hw)) { + kfree(div); + kfree(gate); + return ERR_CAST(hw); } - return clk; -err_composite: - kfree(div); + return hw->clk; err_div: kfree(gate); err_gate: @@ -214,8 +212,8 @@ static struct clk *rockchip_clk_register_frac_branch( unsigned long flags, struct rockchip_clk_branch *child, spinlock_t *lock) { + struct clk_hw *hw; struct rockchip_clk_frac *frac; - struct clk *clk; struct clk_gate *gate = NULL; struct clk_fractional_divider *div = NULL; const struct clk_ops *div_ops = NULL, *gate_ops = NULL; @@ -255,14 +253,14 @@ static struct clk *rockchip_clk_register_frac_branch( div->approximation = rockchip_fractional_approximation; div_ops = &clk_fractional_divider_ops; - clk = clk_register_composite(NULL, name, parent_names, num_parents, - NULL, NULL, - &div->hw, div_ops, - gate ? &gate->hw : NULL, gate_ops, - flags | CLK_SET_RATE_UNGATE); - if (IS_ERR(clk)) { + hw = clk_hw_register_composite(NULL, name, parent_names, num_parents, + NULL, NULL, + &div->hw, div_ops, + gate ? &gate->hw : NULL, gate_ops, + flags | CLK_SET_RATE_UNGATE); + if (IS_ERR(hw)) { kfree(frac); - return clk; + return ERR_CAST(hw); } if (child) { @@ -292,7 +290,7 @@ static struct clk *rockchip_clk_register_frac_branch( mux_clk = clk_register(NULL, &frac_mux->hw); if (IS_ERR(mux_clk)) { kfree(frac); - return clk; + return mux_clk; } rockchip_clk_add_lookup(ctx, mux_clk, child->id); @@ -301,7 +299,7 @@ static struct clk *rockchip_clk_register_frac_branch( if (frac->mux_frac_idx >= 0) { pr_debug("%s: found fractional parent in mux at pos %d\n", __func__, frac->mux_frac_idx); - ret = clk_notifier_register(clk, &frac->clk_nb); + ret = clk_notifier_register(hw->clk, &frac->clk_nb); if (ret) pr_err("%s: failed to register clock notifier for %s\n", __func__, name); @@ -311,7 +309,7 @@ static struct clk *rockchip_clk_register_frac_branch( } } - return clk; + return hw->clk; } static struct clk *rockchip_clk_register_factor_branch(const char *name, @@ -320,7 +318,7 @@ static struct clk *rockchip_clk_register_factor_branch(const char *name, int gate_offset, u8 gate_shift, u8 gate_flags, unsigned long flags, spinlock_t *lock) { - struct clk *clk; + struct clk_hw *hw; struct clk_gate *gate = NULL; struct clk_fixed_factor *fix = NULL; @@ -349,20 +347,22 @@ static struct clk *rockchip_clk_register_factor_branch(const char *name, fix->mult = mult; fix->div = div; - clk = clk_register_composite(NULL, name, parent_names, num_parents, - NULL, NULL, - &fix->hw, &clk_fixed_factor_ops, - &gate->hw, &clk_gate_ops, flags); - if (IS_ERR(clk)) { + hw = clk_hw_register_composite(NULL, name, parent_names, num_parents, + NULL, NULL, + &fix->hw, &clk_fixed_factor_ops, + &gate->hw, &clk_gate_ops, flags); + if (IS_ERR(hw)) { kfree(fix); kfree(gate); + return ERR_CAST(hw); } - return clk; + return hw->clk; } -struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np, - void __iomem *base, unsigned long nr_clks) +struct rockchip_clk_provider *rockchip_clk_init(struct device_node *np, + void __iomem *base, + unsigned long nr_clks) { struct rockchip_clk_provider *ctx; struct clk **clk_table; @@ -394,14 +394,16 @@ err_free: kfree(ctx); return ERR_PTR(-ENOMEM); } +EXPORT_SYMBOL_GPL(rockchip_clk_init); -void __init rockchip_clk_of_add_provider(struct device_node *np, - struct rockchip_clk_provider *ctx) +void rockchip_clk_of_add_provider(struct device_node *np, + struct rockchip_clk_provider *ctx) { if (of_clk_add_provider(np, of_clk_src_onecell_get, &ctx->clk_data)) pr_err("%s: could not register clk provider\n", __func__); } +EXPORT_SYMBOL_GPL(rockchip_clk_of_add_provider); void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx, struct clk *clk, unsigned int id) @@ -409,8 +411,9 @@ void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx, if (ctx->clk_data.clks && id) ctx->clk_data.clks[id] = clk; } +EXPORT_SYMBOL_GPL(rockchip_clk_add_lookup); -void __init rockchip_clk_register_plls(struct rockchip_clk_provider *ctx, +void rockchip_clk_register_plls(struct rockchip_clk_provider *ctx, struct rockchip_pll_clock *list, unsigned int nr_pll, int grf_lock_offset) { @@ -433,11 +436,11 @@ void __init rockchip_clk_register_plls(struct rockchip_clk_provider *ctx, rockchip_clk_add_lookup(ctx, clk, list->id); } } +EXPORT_SYMBOL_GPL(rockchip_clk_register_plls); -void __init rockchip_clk_register_branches( - struct rockchip_clk_provider *ctx, - struct rockchip_clk_branch *list, - unsigned int nr_clk) +void rockchip_clk_register_branches(struct rockchip_clk_provider *ctx, + struct rockchip_clk_branch *list, + unsigned int nr_clk) { struct clk *clk = NULL; unsigned int idx; @@ -566,14 +569,15 @@ void __init rockchip_clk_register_branches( rockchip_clk_add_lookup(ctx, clk, list->id); } } - -void __init rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx, - unsigned int lookup_id, - const char *name, const char *const *parent_names, - u8 num_parents, - const struct rockchip_cpuclk_reg_data *reg_data, - const struct rockchip_cpuclk_rate_table *rates, - int nrates) +EXPORT_SYMBOL_GPL(rockchip_clk_register_branches); + +void rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx, + unsigned int lookup_id, + const char *name, const char *const *parent_names, + u8 num_parents, + const struct rockchip_cpuclk_reg_data *reg_data, + const struct rockchip_cpuclk_rate_table *rates, + int nrates) { struct clk *clk; @@ -588,9 +592,10 @@ void __init rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx, rockchip_clk_add_lookup(ctx, clk, lookup_id); } +EXPORT_SYMBOL_GPL(rockchip_clk_register_armclk); -void __init rockchip_clk_protect_critical(const char *const clocks[], - int nclocks) +void rockchip_clk_protect_critical(const char *const clocks[], + int nclocks) { int i; @@ -602,6 +607,7 @@ void __init rockchip_clk_protect_critical(const char *const clocks[], clk_prepare_enable(clk); } } +EXPORT_SYMBOL_GPL(rockchip_clk_protect_critical); static void __iomem *rst_base; static unsigned int reg_restart; @@ -621,10 +627,10 @@ static struct notifier_block rockchip_restart_handler = { .priority = 128, }; -void __init +void rockchip_register_restart_notifier(struct rockchip_clk_provider *ctx, - unsigned int reg, - void (*cb)(void)) + unsigned int reg, + void (*cb)(void)) { int ret; @@ -636,3 +642,4 @@ rockchip_register_restart_notifier(struct rockchip_clk_provider *ctx, pr_err("%s: cannot register restart handler, %d\n", __func__, ret); } +EXPORT_SYMBOL_GPL(rockchip_register_restart_notifier); diff --git a/drivers/clk/rockchip/softrst.c b/drivers/clk/rockchip/softrst.c index 5f1ff5e47c4f..5d07266745b8 100644 --- a/drivers/clk/rockchip/softrst.c +++ b/drivers/clk/rockchip/softrst.c @@ -77,9 +77,9 @@ static const struct reset_control_ops rockchip_softrst_ops = { .deassert = rockchip_softrst_deassert, }; -void __init rockchip_register_softrst(struct device_node *np, - unsigned int num_regs, - void __iomem *base, u8 flags) +void rockchip_register_softrst(struct device_node *np, + unsigned int num_regs, + void __iomem *base, u8 flags) { struct rockchip_softrst *softrst; int ret; @@ -107,3 +107,4 @@ void __init rockchip_register_softrst(struct device_node *np, kfree(softrst); } }; +EXPORT_SYMBOL_GPL(rockchip_register_softrst); |