diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu-sun6i-a31.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun6i-a31.c | 98 |
1 files changed, 62 insertions, 36 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c index 3b97f60540ad..bab65cfe9501 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c +++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c @@ -1,22 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016 Chen-Yu Tsai * * Chen-Yu Tsai <wens@csie.org> * * Based on ccu-sun8i-h3.c by Maxime Ripard. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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/of_address.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> #include "ccu_common.h" #include "ccu_reset.h" @@ -264,9 +258,9 @@ static SUNXI_CCU_GATE(ahb1_mmc1_clk, "ahb1-mmc1", "ahb1", static SUNXI_CCU_GATE(ahb1_mmc2_clk, "ahb1-mmc2", "ahb1", 0x060, BIT(10), 0); static SUNXI_CCU_GATE(ahb1_mmc3_clk, "ahb1-mmc3", "ahb1", - 0x060, BIT(12), 0); + 0x060, BIT(11), 0); static SUNXI_CCU_GATE(ahb1_nand1_clk, "ahb1-nand1", "ahb1", - 0x060, BIT(13), 0); + 0x060, BIT(12), 0); static SUNXI_CCU_GATE(ahb1_nand0_clk, "ahb1-nand0", "ahb1", 0x060, BIT(13), 0); static SUNXI_CCU_GATE(ahb1_sdram_clk, "ahb1-sdram", "ahb1", @@ -962,21 +956,32 @@ static struct ccu_common *sun6i_a31_ccu_clks[] = { &out_c_clk.common, }; +static const struct clk_hw *clk_parent_pll_audio[] = { + &pll_audio_base_clk.common.hw +}; + /* We hardcode the divider to 1 for now */ -static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", - "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", - "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_audio_8x_clk, "pll-audio-8x", - "pll-audio-base", 1, 2, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_periph_2x_clk, "pll-periph-2x", - "pll-periph", 1, 2, 0); -static CLK_FIXED_FACTOR(pll_video0_2x_clk, "pll-video0-2x", - "pll-video0", 1, 2, CLK_SET_RATE_PARENT); -static CLK_FIXED_FACTOR(pll_video1_2x_clk, "pll-video1-2x", - "pll-video1", 1, 2, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_clk, "pll-audio", + clk_parent_pll_audio, + 1, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_2x_clk, "pll-audio-2x", + clk_parent_pll_audio, + 2, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_4x_clk, "pll-audio-4x", + clk_parent_pll_audio, + 1, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HWS(pll_audio_8x_clk, "pll-audio-8x", + clk_parent_pll_audio, + 1, 2, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HW(pll_periph_2x_clk, "pll-periph-2x", + &pll_periph_clk.common.hw, + 1, 2, 0); +static CLK_FIXED_FACTOR_HW(pll_video0_2x_clk, "pll-video0-2x", + &pll_video0_clk.common.hw, + 1, 2, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR_HW(pll_video1_2x_clk, "pll-video1-2x", + &pll_video1_clk.common.hw, + 1, 2, CLK_SET_RATE_PARENT); static struct clk_hw_onecell_data sun6i_a31_hw_clks = { .hws = { @@ -1141,7 +1146,7 @@ static struct clk_hw_onecell_data sun6i_a31_hw_clks = { .num = CLK_NUMBER, }; -static struct ccu_reset_map sun6i_a31_ccu_resets[] = { +static const struct ccu_reset_map sun6i_a31_ccu_resets[] = { [RST_USB_PHY0] = { 0x0cc, BIT(0) }, [RST_USB_PHY1] = { 0x0cc, BIT(1) }, [RST_USB_PHY2] = { 0x0cc, BIT(2) }, @@ -1222,16 +1227,15 @@ static struct ccu_mux_nb sun6i_a31_cpu_nb = { .bypass_index = 1, /* index of 24 MHz oscillator */ }; -static void __init sun6i_a31_ccu_setup(struct device_node *node) +static int sun6i_a31_ccu_probe(struct platform_device *pdev) { void __iomem *reg; + int ret; u32 val; - reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (IS_ERR(reg)) { - pr_err("%pOF: Could not map the clock registers\n", node); - return; - } + reg = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(reg)) + return PTR_ERR(reg); /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN6I_A31_PLL_AUDIO_REG); @@ -1253,10 +1257,32 @@ static void __init sun6i_a31_ccu_setup(struct device_node *node) val |= 0x3 << 12; writel(val, reg + SUN6I_A31_AHB1_REG); - sunxi_ccu_probe(node, reg, &sun6i_a31_ccu_desc); + ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun6i_a31_ccu_desc); + if (ret) + return ret; ccu_mux_notifier_register(pll_cpu_clk.common.hw.clk, &sun6i_a31_cpu_nb); + + return 0; } -CLK_OF_DECLARE(sun6i_a31_ccu, "allwinner,sun6i-a31-ccu", - sun6i_a31_ccu_setup); + +static const struct of_device_id sun6i_a31_ccu_ids[] = { + { .compatible = "allwinner,sun6i-a31-ccu" }, + { } +}; +MODULE_DEVICE_TABLE(of, sun6i_a31_ccu_ids); + +static struct platform_driver sun6i_a31_ccu_driver = { + .probe = sun6i_a31_ccu_probe, + .driver = { + .name = "sun6i-a31-ccu", + .suppress_bind_attrs = true, + .of_match_table = sun6i_a31_ccu_ids, + }, +}; +module_platform_driver(sun6i_a31_ccu_driver); + +MODULE_IMPORT_NS("SUNXI_CCU"); +MODULE_DESCRIPTION("Support for the Allwinner A31/A31s CCU"); +MODULE_LICENSE("GPL"); |