Re: [PATCH v2 4/6] clk: hi6220: Clock driver support for Hisilicon hi6220 SoC

From: Paul Bolle
Date: Mon Apr 13 2015 - 07:56:58 EST

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On Mon, 2015-04-13 at 17:17 +0800, Bintian Wang wrote:
> --- /dev/null
> +++ b/drivers/clk/hisilicon/Kconfig
> @@ -0,0 +1,5 @@
> +config COMMON_CLK_HI6220
> + tristate "Hi6220 Clock Driver"
> + depends on OF && ARCH_HISI
> + help
> + Build the Hisilicon Hi6220 clock driver based on the common clock framework.

In 5/6 you make arm64's ARCH_HISI (a bool) select COMMON_CLK_HI6220. So
for arm64 this driver will always be built-in.

For arm's ARCH_HISI it's possible to set COMMON_CLK_HI6220 to 'm'.

> --- a/drivers/clk/hisilicon/Makefile
> +++ b/drivers/clk/hisilicon/Makefile
> @@ -2,8 +2,9 @@
> # Hisilicon Clock specific Makefile
> #
>
> -obj-y += clk.o clkgate-separated.o
> +obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o

These objects will always be built-in, right?

> obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o
> obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o
> obj-$(CONFIG_ARCH_HIX5HD2) += clk-hix5hd2.o
> +obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o

If CONFIG_COMMON_CLK_HI6220 is 'm' this will build a module named
clk-hi6220.ko. If I try to do that I get:
$ make -C ../../.. ARCH=arm CROSS_COMPILE=arm-linux-gnu- M=$PWD clk-hi6220.ko
make: Entering directory `[...]'
CC [M] [...]/drivers/clk/hisilicon/clk-hi6220.o
MODPOST 1 modules
WARNING: "hisi_clk_register_gate" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
WARNING: "hi6220_clk_register_divider" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
WARNING: "hisi_clk_register_mux" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
WARNING: "hisi_clk_register_gate_sep" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
WARNING: "hisi_clk_register_fixed_factor" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
WARNING: "hisi_clk_register_fixed_rate" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
WARNING: "hisi_clk_init" [[...]/drivers/clk/hisilicon/clk-hi6220.ko] undefined!
CC [...]/drivers/clk/hisilicon/clk-hi6220.mod.o
LDFINAL [M] [...]/drivers/clk/hisilicon/clk-hi6220.ko
make: Leaving directory `[...]'

That is, I think, because nothing exports these symbols.

> --- /dev/null
> +++ b/drivers/clk/hisilicon/clk-hi6220.c
> @@ -0,0 +1,292 @@
> +/*
> + * Hisilicon Hi6220 clock driver
> + *
> + * Copyright (c) 2015 Hisilicon Limited.
> + *
> + * Author: Bintian Wang <bintian.wang@xxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/clk-provider.h>
> +#include <linux/clkdev.h>
> +#include <linux/io.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_device.h>
> +#include <linux/slab.h>
> +#include <linux/clk.h>
> +
> +#include <dt-bindings/clock/hi6220-clock.h>
> +
> +#include "clk.h"
> +
> +
> +/* clocks in AO (always on) controller */
> +static struct hisi_fixed_rate_clock hi6220_fixed_rate_clks[] __initdata = {
> + { HI6220_REF32K, "ref32k", NULL, CLK_IS_ROOT, 32764, },
> + { HI6220_CLK_TCXO, "clk_tcxo", NULL, CLK_IS_ROOT, 19200000, },
> + { HI6220_MMC1_PAD, "mmc1_pad", NULL, CLK_IS_ROOT, 100000000, },
> + { HI6220_MMC2_PAD, "mmc2_pad", NULL, CLK_IS_ROOT, 100000000, },
> + { HI6220_MMC0_PAD, "mmc0_pad", NULL, CLK_IS_ROOT, 200000000, },
> + { HI6220_PLL_BBP, "bbppll0", NULL, CLK_IS_ROOT, 245760000, },
> + { HI6220_PLL_GPU, "gpupll", NULL, CLK_IS_ROOT, 1000000000,},
> + { HI6220_PLL1_DDR, "ddrpll1", NULL, CLK_IS_ROOT, 1066000000,},
> + { HI6220_PLL_SYS, "syspll", NULL, CLK_IS_ROOT, 1200000000,},
> + { HI6220_PLL_SYS_MEDIA, "media_syspll", NULL, CLK_IS_ROOT, 1200000000,},
> + { HI6220_DDR_SRC, "ddr_sel_src", NULL, CLK_IS_ROOT, 1200000000,},
> + { HI6220_PLL_MEDIA, "media_pll", NULL, CLK_IS_ROOT, 1440000000,},
> + { HI6220_PLL_DDR, "ddrpll0", NULL, CLK_IS_ROOT, 1600000000,},
> +};
> +
> +static struct hisi_fixed_factor_clock hi6220_fixed_factor_clks[] __initdata = {
> + { HI6220_300M, "clk_300m", "syspll", 1, 4, 0, },
> + { HI6220_150M, "clk_150m", "clk_300m", 1, 2, 0, },
> + { HI6220_PICOPHY_SRC, "picophy_src", "clk_150m", 1, 4, 0, },
> + { HI6220_MMC0_SRC_SEL, "mmc0srcsel", "mmc0_sel", 1, 8, 0, },
> + { HI6220_MMC1_SRC_SEL, "mmc1srcsel", "mmc1_sel", 1, 8, 0, },
> + { HI6220_MMC2_SRC_SEL, "mmc2srcsel", "mmc2_sel", 1, 8, 0, },
> + { HI6220_VPU_CODEC, "vpucodec", "codec_jpeg_aclk", 1, 2, 0, },
> + { HI6220_MMC0_SMP, "mmc0_sample", "mmc0_sel", 1, 8, 0, },
> + { HI6220_MMC1_SMP, "mmc1_sample", "mmc1_sel", 1, 8, 0, },
> + { HI6220_MMC2_SMP, "mmc2_sample", "mmc2_sel", 1, 8, 0, },
> +};
> +
> +static struct hisi_gate_clock hi6220_separated_gate_clks_ao[] __initdata = {
> + { HI6220_WDT0_PCLK, "wdt0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 12, 0, },
> + { HI6220_WDT1_PCLK, "wdt1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 13, 0, },
> + { HI6220_WDT2_PCLK, "wdt2_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 14, 0, },
> + { HI6220_TIMER0_PCLK, "timer0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 15, 0, },
> + { HI6220_TIMER1_PCLK, "timer1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 16, 0, },
> + { HI6220_TIMER2_PCLK, "timer2_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 17, 0, },
> + { HI6220_TIMER3_PCLK, "timer3_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 18, 0, },
> + { HI6220_TIMER4_PCLK, "timer4_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 19, 0, },
> + { HI6220_TIMER5_PCLK, "timer5_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 20, 0, },
> + { HI6220_TIMER6_PCLK, "timer6_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 21, 0, },
> + { HI6220_TIMER7_PCLK, "timer7_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 22, 0, },
> + { HI6220_TIMER8_PCLK, "timer8_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 23, 0, },
> + { HI6220_UART0_PCLK, "uart0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 24, 0, },
> +};
> +
> +static struct hisi_clock_data *clk_data_ao;
> +
> +static void __init hi6220_clk_ao_init(struct device_node *np)
> +{
> + clk_data_ao = hisi_clk_init(np, HI6220_AO_NR_CLKS);
> + if (!clk_data_ao)
> + return;
> +
> + hisi_clk_register_fixed_rate(hi6220_fixed_rate_clks,
> + ARRAY_SIZE(hi6220_fixed_rate_clks), clk_data_ao);
> +
> + hisi_clk_register_fixed_factor(hi6220_fixed_factor_clks,
> + ARRAY_SIZE(hi6220_fixed_factor_clks), clk_data_ao);
> +
> + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_ao,
> + ARRAY_SIZE(hi6220_separated_gate_clks_ao), clk_data_ao);
> +}
> +CLK_OF_DECLARE(hi6220_clk_ao, "hisilicon,aoctrl", hi6220_clk_ao_init);
> +
> +
> +/* clocks in sysctrl */
> +static const char *mmc0_mux0_p[] __initconst = { "pll_ddr_gate", "syspll", };
> +static const char *mmc0_mux1_p[] __initconst = { "mmc0_mux0", "pll_media_gate", };
> +static const char *mmc0_src_p[] __initconst = { "mmc0srcsel", "mmc0_div", };
> +static const char *mmc1_mux0_p[] __initconst = { "pll_ddr_gate", "syspll", };
> +static const char *mmc1_mux1_p[] __initconst = { "mmc1_mux0", "pll_media_gate", };
> +static const char *mmc1_src_p[] __initconst = { "mmc1srcsel", "mmc1_div", };
> +static const char *mmc2_mux0_p[] __initconst = { "pll_ddr_gate", "syspll", };
> +static const char *mmc2_mux1_p[] __initconst = { "mmc2_mux0", "pll_media_gate", };
> +static const char *mmc2_src_p[] __initconst = { "mmc2srcsel", "mmc2_div", };
> +static const char *mmc0_sample_in[] __initconst = { "mmc0_sample", "mmc0_pad", };
> +static const char *mmc1_sample_in[] __initconst = { "mmc1_sample", "mmc1_pad", };
> +static const char *mmc2_sample_in[] __initconst = { "mmc2_sample", "mmc2_pad", };
> +static const char *uart1_src[] __initconst = { "clk_tcxo", "clk_150m", };
> +static const char *uart2_src[] __initconst = { "clk_tcxo", "clk_150m", };
> +static const char *uart3_src[] __initconst = { "clk_tcxo", "clk_150m", };
> +static const char *uart4_src[] __initconst = { "clk_tcxo", "clk_150m", };
> +static const char *hifi_src[] __initconst = { "syspll", "pll_media_gate", };
> +
> +static struct hisi_gate_clock hi6220_separated_gate_clks_sys[] __initdata = {
> + { HI6220_MMC0_CLK, "mmc0_clk", "mmc0_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 0, 0, },
> + { HI6220_MMC0_CIUCLK, "mmc0_ciuclk", "mmc0_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 0, 0, },
> + { HI6220_MMC1_CLK, "mmc1_clk", "mmc1_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 1, 0, },
> + { HI6220_MMC1_CIUCLK, "mmc1_ciuclk", "mmc1_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 1, 0, },
> + { HI6220_MMC2_CLK, "mmc2_clk", "mmc2_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 2, 0, },
> + { HI6220_MMC2_CIUCLK, "mmc2_ciuclk", "mmc2_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 2, 0, },
> + { HI6220_USBOTG_HCLK, "usbotg_hclk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 4, 0, },
> + { HI6220_CLK_PICOPHY, "clk_picophy", "cs_dapb", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 5, 0, },
> + { HI6220_HIFI, "hifi_clk", "hifi_div", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x210, 0, 0, },
> + { HI6220_DACODEC_PCLK, "dacodec_pclk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x210, 5, 0, },
> + { HI6220_EDMAC_ACLK, "edmac_aclk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x220, 2, 0, },
> + { HI6220_CS_ATB, "cs_atb", "cs_atb_div", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 0, 0, },
> + { HI6220_I2C0_CLK, "i2c0_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 1, 0, },
> + { HI6220_I2C1_CLK, "i2c1_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 2, 0, },
> + { HI6220_I2C2_CLK, "i2c2_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 3, 0, },
> + { HI6220_I2C3_CLK, "i2c3_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 4, 0, },
> + { HI6220_UART1_PCLK, "uart1_pclk", "uart1_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 5, 0, },
> + { HI6220_UART2_PCLK, "uart2_pclk", "uart2_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 6, 0, },
> + { HI6220_UART3_PCLK, "uart3_pclk", "uart3_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 7, 0, },
> + { HI6220_UART4_PCLK, "uart4_pclk", "uart4_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 8, 0, },
> + { HI6220_SPI_CLK, "spi_clk", "clk_150m", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 9, 0, },
> + { HI6220_TSENSOR_CLK, "tsensor_clk", "clk_bus", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x230, 12, 0, },
> + { HI6220_MMU_CLK, "mmu_clk", "ddrc_axi1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x240, 11, 0, },
> + { HI6220_HIFI_SEL, "hifi_sel", "hifi_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 0, 0, },
> + { HI6220_MMC0_SYSPLL, "mmc0_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 1, 0, },
> + { HI6220_MMC1_SYSPLL, "mmc1_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 2, 0, },
> + { HI6220_MMC2_SYSPLL, "mmc2_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 3, 0, },
> + { HI6220_MMC0_SEL, "mmc0_sel", "mmc0_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 6, 0, },
> + { HI6220_MMC1_SEL, "mmc1_sel", "mmc1_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 7, 0, },
> + { HI6220_BBPPLL_SEL, "bbppll_sel", "pll0_bbp_gate", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 9, 0, },
> + { HI6220_MEDIA_PLL_SRC, "media_pll_src", "pll_media_gate", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 10, 0, },
> + { HI6220_MMC2_SEL, "mmc2_sel", "mmc2_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 11, 0, },
> + { HI6220_CS_ATB_SYSPLL, "cs_atb_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 12, 0, },
> +};
> +
> +static struct hisi_mux_clock hi6220_mux_clks_sys[] __initdata = {
> + { HI6220_MMC0_SRC, "mmc0_src", mmc0_src_p, ARRAY_SIZE(mmc0_src_p), CLK_SET_RATE_PARENT, 0x4, 0, 1, 0, },
> + { HI6220_MMC0_SMP_IN, "mmc0_smp_in", mmc0_sample_in, ARRAY_SIZE(mmc0_sample_in), CLK_SET_RATE_PARENT, 0x4, 0, 1, 0, },
> + { HI6220_MMC1_SRC, "mmc1_src", mmc1_src_p, ARRAY_SIZE(mmc1_src_p), CLK_SET_RATE_PARENT, 0x4, 2, 1, 0, },
> + { HI6220_MMC1_SMP_IN, "mmc1_smp_in", mmc1_sample_in, ARRAY_SIZE(mmc1_sample_in), CLK_SET_RATE_PARENT, 0x4, 2, 1, 0, },
> + { HI6220_MMC2_SRC, "mmc2_src", mmc2_src_p, ARRAY_SIZE(mmc2_src_p), CLK_SET_RATE_PARENT, 0x4, 4, 1, 0, },
> + { HI6220_MMC2_SMP_IN, "mmc2_smp_in", mmc2_sample_in, ARRAY_SIZE(mmc2_sample_in), CLK_SET_RATE_PARENT, 0x4, 4, 1, 0, },
> + { HI6220_HIFI_SRC, "hifi_src", hifi_src, ARRAY_SIZE(hifi_src), CLK_SET_RATE_PARENT, 0x400, 0, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_UART1_SRC, "uart1_src", uart1_src, ARRAY_SIZE(uart1_src), CLK_SET_RATE_PARENT, 0x400, 1, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_UART2_SRC, "uart2_src", uart2_src, ARRAY_SIZE(uart2_src), CLK_SET_RATE_PARENT, 0x400, 2, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_UART3_SRC, "uart3_src", uart3_src, ARRAY_SIZE(uart3_src), CLK_SET_RATE_PARENT, 0x400, 3, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_UART4_SRC, "uart4_src", uart4_src, ARRAY_SIZE(uart4_src), CLK_SET_RATE_PARENT, 0x400, 4, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_MMC0_MUX0, "mmc0_mux0", mmc0_mux0_p, ARRAY_SIZE(mmc0_mux0_p), CLK_SET_RATE_PARENT, 0x400, 5, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_MMC1_MUX0, "mmc1_mux0", mmc1_mux0_p, ARRAY_SIZE(mmc1_mux0_p), CLK_SET_RATE_PARENT, 0x400, 11, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_MMC2_MUX0, "mmc2_mux0", mmc2_mux0_p, ARRAY_SIZE(mmc2_mux0_p), CLK_SET_RATE_PARENT, 0x400, 12, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_MMC0_MUX1, "mmc0_mux1", mmc0_mux1_p, ARRAY_SIZE(mmc0_mux1_p), CLK_SET_RATE_PARENT, 0x400, 13, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_MMC1_MUX1, "mmc1_mux1", mmc1_mux1_p, ARRAY_SIZE(mmc1_mux1_p), CLK_SET_RATE_PARENT, 0x400, 14, 1, CLK_MUX_HIWORD_MASK,},
> + { HI6220_MMC2_MUX1, "mmc2_mux1", mmc2_mux1_p, ARRAY_SIZE(mmc2_mux1_p), CLK_SET_RATE_PARENT, 0x400, 15, 1, CLK_MUX_HIWORD_MASK,},
> +};
> +
> +static struct hi6220_divider_clock hi6220_div_clks_sys[] __initdata = {
> + { HI6220_CLK_BUS, "clk_bus", "clk_300m", CLK_SET_RATE_PARENT, 0x490, 0, 4, 7, },
> + { HI6220_MMC0_DIV, "mmc0_div", "mmc0_syspll", CLK_SET_RATE_PARENT, 0x494, 0, 6, 7, },
> + { HI6220_MMC1_DIV, "mmc1_div", "mmc1_syspll", CLK_SET_RATE_PARENT, 0x498, 0, 6, 7, },
> + { HI6220_MMC2_DIV, "mmc2_div", "mmc2_syspll", CLK_SET_RATE_PARENT, 0x49c, 0, 6, 7, },
> + { HI6220_HIFI_DIV, "hifi_div", "hifi_sel", CLK_SET_RATE_PARENT, 0x4a0, 0, 4, 7, },
> + { HI6220_BBPPLL0_DIV, "bbppll0_div", "bbppll_sel", CLK_SET_RATE_PARENT, 0x4a0, 8, 6, 15,},
> + { HI6220_CS_DAPB, "cs_dapb", "picophy_src", CLK_SET_RATE_PARENT, 0x4a0, 24, 2, 31,},
> + { HI6220_CS_ATB_DIV, "cs_atb_div", "cs_atb_syspll", CLK_SET_RATE_PARENT, 0x4a4, 0, 4, 7, },
> +};
> +
> +static void __init hi6220_clk_sys_init(struct device_node *np)
> +{
> + struct hisi_clock_data *clk_data;
> +
> + clk_data = hisi_clk_init(np, HI6220_SYS_NR_CLKS);
> + if (!clk_data)
> + return;
> +
> + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_sys,
> + ARRAY_SIZE(hi6220_separated_gate_clks_sys), clk_data);
> +
> + hisi_clk_register_mux(hi6220_mux_clks_sys,
> + ARRAY_SIZE(hi6220_mux_clks_sys), clk_data);
> +
> + hi6220_clk_register_divider(hi6220_div_clks_sys,
> + ARRAY_SIZE(hi6220_div_clks_sys), clk_data);
> +
> + if (!clk_data_ao)
> + return;
> +
> + /* enable high speed clock on UART1 mux */
> + clk_set_parent(clk_data->clk_data.clks[HI6220_UART1_SRC],
> + clk_data_ao->clk_data.clks[HI6220_150M]);
> +}
> +CLK_OF_DECLARE(hi6220_clk_sys, "hisilicon,sysctrl", hi6220_clk_sys_init);
> +
> +
> +/* clocks in media controller */
> +static const char *clk_1000_1200_src[] __initconst = { "pll_gpu_gate", "media_syspll_src", };
> +static const char *clk_1440_1200_src[] __initconst = { "media_syspll_src", "media_pll_src", };
> +static const char *clk_1000_1440_src[] __initconst = { "pll_gpu_gate", "media_pll_src", };
> +
> +static struct hisi_gate_clock hi6220_separated_gate_clks_media[] __initdata = {
> + { HI6220_DSI_PCLK, "dsi_pclk", "vpucodec", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 0, 0, },
> + { HI6220_G3D_PCLK, "g3d_pclk", "vpucodec", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 1, 0, },
> + { HI6220_ACLK_CODEC_VPU, "aclk_codec_vpu", "ade_core_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 3, 0, },
> + { HI6220_ISP_SCLK, "isp_sclk", "isp_sclk_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 5, 0, },
> + { HI6220_ADE_CORE, "ade_core", "ade_core_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 6, 0, },
> + { HI6220_MED_MMU, "media_mmu", "mmu_clk", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 8, 0, },
> + { HI6220_CFG_CSI4PHY, "cfg_csi4phy", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 9, 0, },
> + { HI6220_CFG_CSI2PHY, "cfg_csi2phy", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 10, 0, },
> + { HI6220_ISP_SCLK_GATE, "isp_sclk_gate", "media_pll_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 11, 0, },
> + { HI6220_ISP_SCLK_GATE1, "isp_sclk_gate1", "media_pll_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 12, 0, },
> + { HI6220_ADE_CORE_GATE, "ade_core_gate", "media_pll_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 14, 0, },
> + { HI6220_CODEC_VPU_GATE, "codec_vpu_gate", "clk_1000_1440", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 15, 0, },
> + { HI6220_MED_SYSPLL, "media_syspll_src", "media_syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 17, 0, },
> +};
> +
> +static struct hisi_mux_clock hi6220_mux_clks_media[] __initdata = {
> + { HI6220_1440_1200, "clk_1440_1200", clk_1440_1200_src, ARRAY_SIZE(clk_1440_1200_src), CLK_SET_RATE_PARENT, 0x51c, 0, 1, 0, },
> + { HI6220_1000_1200, "clk_1000_1200", clk_1000_1200_src, ARRAY_SIZE(clk_1000_1200_src), CLK_SET_RATE_PARENT, 0x51c, 1, 1, 0, },
> + { HI6220_1000_1440, "clk_1000_1440", clk_1000_1440_src, ARRAY_SIZE(clk_1000_1440_src), CLK_SET_RATE_PARENT, 0x51c, 6, 1, 0, },
> +};
> +
> +static struct hi6220_divider_clock hi6220_div_clks_media[] __initdata = {
> + { HI6220_CODEC_JPEG, "codec_jpeg_aclk", "media_pll_src", CLK_SET_RATE_PARENT, 0xcbc, 0, 4, 23, },
> + { HI6220_ISP_SCLK_SRC, "isp_sclk_src", "isp_sclk_gate", CLK_SET_RATE_PARENT, 0xcbc, 8, 4, 15, },
> + { HI6220_ISP_SCLK1, "isp_sclk1", "isp_sclk_gate1", CLK_SET_RATE_PARENT, 0xcbc, 24, 4, 31, },
> + { HI6220_ADE_CORE_SRC, "ade_core_src", "ade_core_gate", CLK_SET_RATE_PARENT, 0xcc0, 16, 3, 23, },
> + { HI6220_ADE_PIX_SRC, "ade_pix_src", "clk_1440_1200", CLK_SET_RATE_PARENT, 0xcc0, 24, 6, 31, },
> + { HI6220_G3D_CLK, "g3d_clk", "clk_1000_1200", CLK_SET_RATE_PARENT, 0xcc4, 8, 4, 15, },
> + { HI6220_CODEC_VPU_SRC, "codec_vpu_src", "codec_vpu_gate", CLK_SET_RATE_PARENT, 0xcc4, 24, 6, 31, },
> +};
> +
> +static void __init hi6220_clk_media_init(struct device_node *np)
> +{
> + struct hisi_clock_data *clk_data;
> +
> + clk_data = hisi_clk_init(np, HI6220_MEDIA_NR_CLKS);
> + if (!clk_data)
> + return;
> +
> + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_media,
> + ARRAY_SIZE(hi6220_separated_gate_clks_media), clk_data);
> +
> + hisi_clk_register_mux(hi6220_mux_clks_media,
> + ARRAY_SIZE(hi6220_mux_clks_media), clk_data);
> +
> + hi6220_clk_register_divider(hi6220_div_clks_media,
> + ARRAY_SIZE(hi6220_div_clks_media), clk_data);
> +}
> +CLK_OF_DECLARE(hi6220_clk_media, "hisilicon,mediactrl", hi6220_clk_media_init);
> +
> +
> +/* clocks in pmctrl */
> +static struct hisi_gate_clock hi6220_gate_clks_power[] __initdata = {
> + { HI6220_PLL_GPU_GATE, "pll_gpu_gate", "gpupll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x8, 0, 0, },
> + { HI6220_PLL1_DDR_GATE, "pll1_ddr_gate", "ddrpll1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x10, 0, 0, },
> + { HI6220_PLL_DDR_GATE, "pll_ddr_gate", "ddrpll0", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x18, 0, 0, },
> + { HI6220_PLL_MEDIA_GATE, "pll_media_gate", "media_pll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x38, 0, 0, },
> + { HI6220_PLL0_BBP_GATE, "pll0_bbp_gate", "bbppll0", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x48, 0, 0, },
> +};
> +
> +static struct hi6220_divider_clock hi6220_div_clks_power[] __initdata = {
> + { HI6220_DDRC_SRC, "ddrc_src", "ddr_sel_src", CLK_SET_RATE_PARENT, 0x5a8, 0, 4, 0, },
> + { HI6220_DDRC_AXI1, "ddrc_axi1", "ddrc_src", CLK_SET_RATE_PARENT, 0x5a8, 8, 2, 0, },
> +};
> +
> +static void __init hi6220_clk_power_init(struct device_node *np)
> +{
> + struct hisi_clock_data *clk_data;
> +
> + clk_data = hisi_clk_init(np, HI6220_POWER_NR_CLKS);
> + if (!clk_data)
> + return;
> +
> + hisi_clk_register_gate(hi6220_gate_clks_power,
> + ARRAY_SIZE(hi6220_gate_clks_power), clk_data);
> +
> + hi6220_clk_register_divider(hi6220_div_clks_power,
> + ARRAY_SIZE(hi6220_div_clks_power), clk_data);
> +}
> +CLK_OF_DECLARE(hi6220_clk_power, "hisilicon,pmctrl", hi6220_clk_power_init);

There's nothing module specific in this file. And the lack of a
MODULE_LICENSE() macro is also telling. If this was built as a module
loading that module - ignoring the undefined symbols - would taint the
kernel.

It seems to me that COMMON_CLK_HI6220 is meant to be a bool symbol.

Paul Bolle

I wonder what checkpatch had to say about the length of the lines seen
in this patch.

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