diff options
| -rw-r--r-- | Documentation/devicetree/bindings/clock/rockchip.txt | 77 | ||||
| -rw-r--r-- | drivers/clk/rockchip/Makefile | 1 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk-rockchip.c | 98 | ||||
| -rw-r--r-- | drivers/clk/rockchip/clk.c | 16 |
4 files changed, 5 insertions, 187 deletions
diff --git a/Documentation/devicetree/bindings/clock/rockchip.txt b/Documentation/devicetree/bindings/clock/rockchip.txt deleted file mode 100644 index 22f6769e5d4a..000000000000 --- a/Documentation/devicetree/bindings/clock/rockchip.txt +++ /dev/null @@ -1,77 +0,0 @@ -Device Tree Clock bindings for arch-rockchip - -This binding uses the common clock binding[1]. - -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt - -== Gate clocks == - -These bindings are deprecated! -Please use the soc specific CRU bindings instead. - -The gate registers form a continuos block which makes the dt node -structure a matter of taste, as either all gates can be put into -one gate clock spanning all registers or they can be divided into -the 10 individual gates containing 16 clocks each. -The code supports both approaches. - -Required properties: -- compatible : "rockchip,rk2928-gate-clk" -- reg : shall be the control register address(es) for the clock. -- #clock-cells : from common clock binding; shall be set to 1 -- clock-output-names : the corresponding gate names that the clock controls -- clocks : should contain the parent clock for each individual gate, - therefore the number of clocks elements should match the number of - clock-output-names - -Example using multiple gate clocks: - - clk_gates0: gate-clk@200000d0 { - compatible = "rockchip,rk2928-gate-clk"; - reg = <0x200000d0 0x4>; - clocks = <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>; - - clock-output-names = - "gate_core_periph", "gate_cpu_gpll", - "gate_ddrphy", "gate_aclk_cpu", - "gate_hclk_cpu", "gate_pclk_cpu", - "gate_atclk_cpu", "gate_i2s0", - "gate_i2s0_frac", "gate_i2s1", - "gate_i2s1_frac", "gate_i2s2", - "gate_i2s2_frac", "gate_spdif", - "gate_spdif_frac", "gate_testclk"; - - #clock-cells = <1>; - }; - - clk_gates1: gate-clk@200000d4 { - compatible = "rockchip,rk2928-gate-clk"; - reg = <0x200000d4 0x4>; - clocks = <&xin24m>, <&xin24m>, - <&xin24m>, <&dummy>, - <&dummy>, <&xin24m>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>; - - clock-output-names = - "gate_timer0", "gate_timer1", - "gate_timer2", "gate_jtag", - "gate_aclk_lcdc1_src", "gate_otgphy0", - "gate_otgphy1", "gate_ddr_gpll", - "gate_uart0", "gate_frac_uart0", - "gate_uart1", "gate_frac_uart1", - "gate_uart2", "gate_frac_uart2", - "gate_uart3", "gate_frac_uart3"; - - #clock-cells = <1>; - }; diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile index 59b8d320960a..98e7b9429b83 100644 --- a/drivers/clk/rockchip/Makefile +++ b/drivers/clk/rockchip/Makefile @@ -3,7 +3,6 @@ # Rockchip Clock specific Makefile # -obj-y += clk-rockchip.o obj-y += clk.o obj-y += clk-pll.o obj-y += clk-cpu.o diff --git a/drivers/clk/rockchip/clk-rockchip.c b/drivers/clk/rockchip/clk-rockchip.c deleted file mode 100644 index 2c9bb81144c9..000000000000 --- a/drivers/clk/rockchip/clk-rockchip.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (c) 2013 MundoReader S.L. - * Author: Heiko Stuebner <heiko@sntech.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/clk-provider.h> -#include <linux/clkdev.h> -#include <linux/of.h> -#include <linux/of_address.h> - -static DEFINE_SPINLOCK(clk_lock); - -/* - * Gate clocks - */ - -static void __init rk2928_gate_clk_init(struct device_node *node) -{ - struct clk_onecell_data *clk_data; - const char *clk_parent; - const char *clk_name; - void __iomem *reg; - void __iomem *reg_idx; - int flags; - int qty; - int reg_bit; - int clkflags = CLK_SET_RATE_PARENT; - int i; - - qty = of_property_count_strings(node, "clock-output-names"); - if (qty < 0) { - pr_err("%s: error in clock-output-names %d\n", __func__, qty); - return; - } - - if (qty == 0) { - pr_info("%s: nothing to do\n", __func__); - return; - } - - reg = of_iomap(node, 0); - if (!reg) - return; - - clk_data = kzalloc(sizeof(struct clk_onecell_data), GFP_KERNEL); - if (!clk_data) { - iounmap(reg); - return; - } - - clk_data->clks = kzalloc(qty * sizeof(struct clk *), GFP_KERNEL); - if (!clk_data->clks) { - kfree(clk_data); - iounmap(reg); - return; - } - - flags = CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE; - - for (i = 0; i < qty; i++) { - of_property_read_string_index(node, "clock-output-names", - i, &clk_name); - - /* ignore empty slots */ - if (!strcmp("reserved", clk_name)) - continue; - - clk_parent = of_clk_get_parent_name(node, i); - - /* keep all gates untouched for now */ - clkflags |= CLK_IGNORE_UNUSED; - - reg_idx = reg + (4 * (i / 16)); - reg_bit = (i % 16); - - clk_data->clks[i] = clk_register_gate(NULL, clk_name, - clk_parent, clkflags, - reg_idx, reg_bit, - flags, - &clk_lock); - WARN_ON(IS_ERR(clk_data->clks[i])); - } - - clk_data->clk_num = qty; - - of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); -} -CLK_OF_DECLARE(rk2928_gate, "rockchip,rk2928-gate-clk", rk2928_gate_clk_init); diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index 3cd8ad59e0b7..326b3fa44f5d 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -274,18 +274,10 @@ static struct clk *rockchip_clk_register_frac_branch( struct clk_mux *frac_mux = &frac->mux; struct clk_init_data init; struct clk *mux_clk; - int i, ret; - - frac->mux_frac_idx = -1; - for (i = 0; i < child->num_parents; i++) { - if (!strcmp(name, child->parent_names[i])) { - pr_debug("%s: found fractional parent in mux at pos %d\n", - __func__, i); - frac->mux_frac_idx = i; - break; - } - } + int ret; + frac->mux_frac_idx = match_string(child->parent_names, + child->num_parents, name); frac->mux_ops = &clk_mux_ops; frac->clk_nb.notifier_call = rockchip_clk_frac_notifier_cb; @@ -312,6 +304,8 @@ static struct clk *rockchip_clk_register_frac_branch( /* notifier on the fraction divider to catch rate changes */ 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); if (ret) pr_err("%s: failed to register clock notifier for %s\n", |