Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755116AbbBGCFw (ORCPT ); Fri, 6 Feb 2015 21:05:52 -0500 Received: from mail-ie0-f195.google.com ([209.85.223.195]:34207 "EHLO mail-ie0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752525AbbBGCFt (ORCPT ); Fri, 6 Feb 2015 21:05:49 -0500 MIME-Version: 1.0 In-Reply-To: References: <1423128277-10297-1-git-send-email-bintian.wang@huawei.com> <1423128277-10297-3-git-send-email-bintian.wang@huawei.com> Date: Sat, 7 Feb 2015 10:05:48 +0800 Message-ID: Subject: Re: [PATCH 2/3] clk: hi6220: Clock driver support for Hisilicon hi6220 SoC From: Brent Wang To: Tyler Baker Cc: Bintian Wang , linux-arm-kernel , "linux-kernel@vger.kernel.org" , Catalin Marinas , Will Deacon , "devicetree@vger.kernel.org" , Rob Herring , =?UTF-8?Q?Pawe=C5=82_Moll?= , Mark Rutland , Ian Campbell , Kumar Gala , Kevin Hilman , Mike Turquette , Rob Herring , Zhangfei Gao , Haojian Zhuang , Xu Wei , Jaehoon Chung , Olof Johansson , Haifeng Yan , Stephen Boyd , "xuejiancheng@huawei.com" , "sledge.yanwei@huawei.com" , Tomeu Vizoso , Russell King - ARM Linux , Guodong Xu , "dan.zhao@hisilicon.com" , "huxinwei@huawei.com" , "xuyiping@hisilicon.com" , "victor.lixin@hisilicon.com" , "btw@mail.itp.ac.cn" , "puck.chen@hisilicon.com" , "wangbinghui@hisilicon.com" , "zhenwei.wang@hisilicon.com" , "Liguozhu (Kenneth)" , XinWei Kong , "heyunlei@huawei.com" , "w.f@huawei.com" , "z.liuxinliang@huawei.com" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 48517 Lines: 1031 Hello Tyler, Thank you very much for helping test this patchset! 2015-02-07 2:10 GMT+08:00 Tyler Baker : > Hi Bintian, > > This patch applied to next-20150204 is producing build failures on > various ARM defconfigs[1]. I received the following error in all > cases: > > drivers/built-in.o: In function `hi6220_clk_register_divider': > :(.init.text+0x1a84c): undefined reference to `hi6220_register_clkdiv' > Makefile:925: recipe for target 'vmlinux' failed > make: *** [vmlinux] Error 1 It's my fault, I just test on ARM64, The following patch can fix this error: ===================== diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile index bbf0539..48f0116 100644 --- a/drivers/clk/hisilicon/Makefile +++ b/drivers/clk/hisilicon/Makefile @@ -2,9 +2,9 @@ # Hisilicon Clock specific Makefile # -obj-y += clk.o clkgate-separated.o +obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o 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) += clkdivider-hi6220.o clk-hi6220.o +obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o ====================== I will fix this problem in next version. Thanks, Bintian > > On 5 February 2015 at 01:24, Bintian Wang wrote: >> Add clock drivers for hi6220 SoC, this driver controls the SoC >> registers to supply different clocks to different IPs in the SoC. >> >> We add one divider clock for hi6220 because the divider in hi6220 >> also has a mask bit but it doesnot obey the rule defined by flag >> "CLK_DIVIDER_HIWORD_MASK", we can not get index of the mask bit by >> left shift fixed bits (e.g. 16 bits), so we add this divider clock >> to handle it. >> >> This patch also enables this clock driver for ARCH_HISI and document >> devicetree bindings. >> >> Signed-off-by: Bintian Wang >> Reviewed-by: Haojian Zhuang >> Reviewed-by: Zhangfei Gao >> --- >> .../devicetree/bindings/clock/hi6220-clock.txt | 30 +++ >> arch/arm64/Kconfig | 1 + >> drivers/clk/Kconfig | 2 + >> drivers/clk/Makefile | 4 +- >> drivers/clk/hisilicon/Kconfig | 5 + >> drivers/clk/hisilicon/Makefile | 1 + >> drivers/clk/hisilicon/clk-hi6220.c | 284 ++++++++++++++++++++ >> drivers/clk/hisilicon/clk.c | 29 ++ >> drivers/clk/hisilicon/clk.h | 17 ++ >> drivers/clk/hisilicon/clkdivider-hi6220.c | 273 +++++++++++++++++++ >> include/dt-bindings/clock/hi6220-clock.h | 172 ++++++++++++ >> 11 files changed, 815 insertions(+), 3 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/clock/hi6220-clock.txt >> create mode 100644 drivers/clk/hisilicon/Kconfig >> create mode 100644 drivers/clk/hisilicon/clk-hi6220.c >> create mode 100644 drivers/clk/hisilicon/clkdivider-hi6220.c >> create mode 100644 include/dt-bindings/clock/hi6220-clock.h >> >> diff --git a/Documentation/devicetree/bindings/clock/hi6220-clock.txt b/Documentation/devicetree/bindings/clock/hi6220-clock.txt >> new file mode 100644 >> index 0000000..a3ddda1 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/clock/hi6220-clock.txt >> @@ -0,0 +1,30 @@ >> +* Hisilicon Hi6220 Clock Controller >> + >> +The hi6220 clock controller generates and supplies clock to various >> +controllers within the hi6220 SoC. >> + >> +Required Properties: >> + >> +- compatible: should be one of the following: >> + - "hisilicon,hi6220-clock-ao" - controller for those clocks under SoC >> + power always on(AO) domain, it is the sub node of SoC power AO >> + controller in dts file. >> + - "hisilicon,hi6220-clock-sys" - controller for those clocks under SoC >> + system control domain, it is the sub node of SoC system controller >> + in dts file. >> + - "hisilicon,hi6220-clock-media" - controller for those clocks under >> + SoC media control domain, it is the sub node of SoC media controller >> + in dts file. >> + - "hisilicon,hi6220-clock-power" - controller for those clocks under >> + SoC power control domain, it is the sub node of SoC power controller >> + in dts file. >> + >> +- reg: physical base address of the controller and length of memory mapped >> + region. >> + >> +- #clock-cells: should be 1. >> + >> +Each clock is assigned an identifier and client nodes use this identifier >> +to specify the clock which they consume. >> + >> +All these identifier could be found in . >> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig >> index 78cd41c8..6efc3e3 100644 >> --- a/arch/arm64/Kconfig >> +++ b/arch/arm64/Kconfig >> @@ -175,6 +175,7 @@ config ARCH_XGENE >> >> config ARCH_HISI >> bool "Hisilicon SoC Family" >> + select COMMON_CLK_HI6220 >> help >> This enables support for Hisilicon ARMv8 Family of SoCs. >> >> diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig >> index 3f44f29..b52c95c 100644 >> --- a/drivers/clk/Kconfig >> +++ b/drivers/clk/Kconfig >> @@ -136,6 +136,8 @@ config COMMON_CLK_PXA >> >> source "drivers/clk/qcom/Kconfig" >> >> +source "drivers/clk/hisilicon/Kconfig" >> + >> endmenu >> >> source "drivers/clk/bcm/Kconfig" >> diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile >> index d5fba5b..c58703b 100644 >> --- a/drivers/clk/Makefile >> +++ b/drivers/clk/Makefile >> @@ -43,9 +43,7 @@ obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o >> obj-$(CONFIG_COMMON_CLK_AT91) += at91/ >> obj-$(CONFIG_ARCH_BCM_MOBILE) += bcm/ >> obj-$(CONFIG_ARCH_BERLIN) += berlin/ >> -obj-$(CONFIG_ARCH_HI3xxx) += hisilicon/ >> -obj-$(CONFIG_ARCH_HIP04) += hisilicon/ >> -obj-$(CONFIG_ARCH_HIX5HD2) += hisilicon/ >> +obj-$(CONFIG_ARCH_HISI) += hisilicon/ >> obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/ >> ifeq ($(CONFIG_COMMON_CLK), y) >> obj-$(CONFIG_ARCH_MMP) += mmp/ >> diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig >> new file mode 100644 >> index 0000000..e3ead46 >> --- /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. >> diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile >> index 038c02f..bbf0539 100644 >> --- a/drivers/clk/hisilicon/Makefile >> +++ b/drivers/clk/hisilicon/Makefile >> @@ -7,3 +7,4 @@ obj-y += clk.o clkgate-separated.o >> 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) += clkdivider-hi6220.o clk-hi6220.o >> diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c >> new file mode 100644 >> index 0000000..01d0c46 >> --- /dev/null >> +++ b/drivers/clk/hisilicon/clk-hi6220.c >> @@ -0,0 +1,284 @@ >> +/* >> + * Hisilicon Hi6220 clock driver >> + * >> + * Copyright (c) 2015 Hisilicon Limited. >> + * >> + * Author: Bintian Wang >> + * >> + * 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 >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> + >> +#include >> + >> +#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 void __init hi6220_clk_ao_init(struct device_node *np) >> +{ >> + struct hisi_clock_data *clk_data; >> + >> + clk_data = hisi_clk_init(np, HI6220_AO_NR_CLKS); >> + if (!clk_data) >> + return; >> + >> + hisi_clk_register_fixed_rate(hi6220_fixed_rate_clks, >> + ARRAY_SIZE(hi6220_fixed_rate_clks), clk_data); >> + >> + hisi_clk_register_fixed_factor(hi6220_fixed_factor_clks, >> + ARRAY_SIZE(hi6220_fixed_factor_clks), clk_data); >> + >> + hisi_clk_register_gate_sep(hi6220_separated_gate_clks_ao, >> + ARRAY_SIZE(hi6220_separated_gate_clks_ao), clk_data); >> +} >> +CLK_OF_DECLARE(hi6220_clk_ao, "hisilicon,hi6220-clock-ao", 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_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); >> +} >> +CLK_OF_DECLARE(hi6220_clk_sys, "hisilicon,hi6220-clock-sys", 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,hi6220-clock-media", 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,hi6220-clock-power", hi6220_clk_power_init); >> diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c >> index a078e84..5d2305c 100644 >> --- a/drivers/clk/hisilicon/clk.c >> +++ b/drivers/clk/hisilicon/clk.c >> @@ -232,3 +232,32 @@ void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *clks, >> data->clk_data.clks[clks[i].id] = clk; >> } >> } >> + >> +void __init hi6220_clk_register_divider(struct hi6220_divider_clock *clks, >> + int nums, struct hisi_clock_data *data) >> +{ >> + struct clk *clk; >> + void __iomem *base = data->base; >> + int i; >> + >> + for (i = 0; i < nums; i++) { >> + clk = hi6220_register_clkdiv(NULL, clks[i].name, >> + clks[i].parent_name, >> + clks[i].flags, >> + base + clks[i].offset, >> + clks[i].shift, >> + clks[i].width, >> + clks[i].mask_bit, >> + &hisi_clk_lock); >> + if (IS_ERR(clk)) { >> + pr_err("%s: failed to register clock %s\n", >> + __func__, clks[i].name); >> + continue; >> + } >> + >> + if (clks[i].alias) >> + clk_register_clkdev(clk, clks[i].alias, NULL); >> + >> + data->clk_data.clks[clks[i].id] = clk; >> + } >> +} >> diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h >> index 31083ff..462a570 100644 >> --- a/drivers/clk/hisilicon/clk.h >> +++ b/drivers/clk/hisilicon/clk.h >> @@ -79,6 +79,18 @@ struct hisi_divider_clock { >> const char *alias; >> }; >> >> +struct hi6220_divider_clock { >> + unsigned int id; >> + const char *name; >> + const char *parent_name; >> + unsigned long flags; >> + unsigned long offset; >> + u8 shift; >> + u8 width; >> + u32 mask_bit; >> + const char *alias; >> +}; >> + >> struct hisi_gate_clock { >> unsigned int id; >> const char *name; >> @@ -94,6 +106,9 @@ struct clk *hisi_register_clkgate_sep(struct device *, const char *, >> const char *, unsigned long, >> void __iomem *, u8, >> u8, spinlock_t *); >> +struct clk *hi6220_register_clkdiv(struct device *dev, const char *name, >> + const char *parent_name, unsigned long flags, void __iomem *reg, >> + u8 shift, u8 width, u32 mask_bit, spinlock_t *lock); >> >> struct hisi_clock_data __init *hisi_clk_init(struct device_node *, int); >> void __init hisi_clk_register_fixed_rate(struct hisi_fixed_rate_clock *, >> @@ -108,4 +123,6 @@ void __init hisi_clk_register_gate(struct hisi_gate_clock *, >> int, struct hisi_clock_data *); >> void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *, >> int, struct hisi_clock_data *); >> +void __init hi6220_clk_register_divider(struct hi6220_divider_clock *, >> + int, struct hisi_clock_data *); >> #endif /* __HISI_CLK_H */ >> diff --git a/drivers/clk/hisilicon/clkdivider-hi6220.c b/drivers/clk/hisilicon/clkdivider-hi6220.c >> new file mode 100644 >> index 0000000..9e3825b >> --- /dev/null >> +++ b/drivers/clk/hisilicon/clkdivider-hi6220.c >> @@ -0,0 +1,273 @@ >> +/* >> + * Hisilicon hi6220 SoC divider clock driver >> + * >> + * Copyright (c) 2015 Hisilicon Limited. >> + * >> + * Author: Bintian Wang >> + * >> + * 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 >> +#include >> +#include >> +#include >> +#include >> + >> +#define div_mask(width) ((1 << (width)) - 1) >> + >> +/* >> + * The reverse of DIV_ROUND_UP: The maximum number which >> + * divided by m is r >> + */ >> +#define MULT_ROUND_UP(r, m) ((r) * (m) + (m) - 1) >> + >> +/** >> + * struct hi6220_clk_divider - divider clock for hi6220 >> + * >> + * @hw: handle between common and hardware-specific interfaces >> + * @reg: register containing divider >> + * @shift: shift to the divider bit field >> + * @width: width of the divider bit field >> + * @mask: mask for setting divider rate >> + * @table: the div table that the divider supports >> + * @lock: register lock >> + */ >> +struct hi6220_clk_divider { >> + struct clk_hw hw; >> + void __iomem *reg; >> + u8 shift; >> + u8 width; >> + u32 mask; >> + const struct clk_div_table *table; >> + spinlock_t *lock; >> +}; >> + >> +#define to_hi6220_clk_divider(_hw) \ >> + container_of(_hw, struct hi6220_clk_divider, hw) >> + >> +static unsigned int hi6220_get_table_maxdiv(const struct clk_div_table *table) >> +{ >> + unsigned int maxdiv = 0; >> + const struct clk_div_table *clkt; >> + >> + for (clkt = table; clkt->div; clkt++) >> + if (clkt->div > maxdiv) >> + maxdiv = clkt->div; >> + return maxdiv; >> +} >> + >> +static unsigned int hi6220_get_table_div(const struct clk_div_table *table, >> + unsigned int val) >> +{ >> + const struct clk_div_table *clkt; >> + >> + for (clkt = table; clkt->div; clkt++) >> + if (clkt->val == val) >> + return clkt->div; >> + >> + return 0; >> +} >> + >> +static unsigned int hi6220_get_table_val(const struct clk_div_table *table, >> + unsigned int div) >> +{ >> + const struct clk_div_table *clkt; >> + >> + for (clkt = table; clkt->div; clkt++) >> + if (clkt->div == div) >> + return clkt->val; >> + return 0; >> +} >> + >> +static unsigned long hi6220_clkdiv_recalc_rate(struct clk_hw *hw, >> + unsigned long parent_rate) >> +{ >> + unsigned int div, val; >> + struct hi6220_clk_divider *dclk = to_hi6220_clk_divider(hw); >> + >> + val = readl_relaxed(dclk->reg) >> dclk->shift; >> + val &= div_mask(dclk->width); >> + >> + div = hi6220_get_table_div(dclk->table, val); >> + if (!div) { >> + pr_warn("%s: Invalid divisor for clock %s\n", __func__, >> + __clk_get_name(hw->clk)); >> + return parent_rate; >> + } >> + >> + return parent_rate / div; >> +} >> + >> +static bool hi6220_is_valid_div(const struct clk_div_table *table, >> + unsigned int div) >> +{ >> + const struct clk_div_table *clkt; >> + >> + for (clkt = table; clkt->div; clkt++) >> + if (clkt->div == div) >> + return true; >> + return false; >> +} >> + >> +static int hi6220_clkdiv_bestdiv(struct clk_hw *hw, unsigned long rate, >> + unsigned long *best_parent_rate) >> +{ >> + unsigned int i, bestdiv = 0; >> + unsigned long parent_rate, best = 0, now, maxdiv; >> + >> + struct hi6220_clk_divider *dclk = to_hi6220_clk_divider(hw); >> + struct clk *clk_parent = __clk_get_parent(hw->clk); >> + >> + maxdiv = hi6220_get_table_maxdiv(dclk->table); >> + >> + if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) { >> + parent_rate = *best_parent_rate; >> + bestdiv = DIV_ROUND_UP(parent_rate, rate); >> + bestdiv = (bestdiv == 0) ? 1 : bestdiv; >> + bestdiv = (bestdiv > maxdiv) ? maxdiv : bestdiv; >> + return bestdiv; >> + } >> + >> + /* >> + * The maximum divider we can use without overflowing >> + * unsigned long in rate * i below >> + */ >> + maxdiv = min(ULONG_MAX / rate, maxdiv); >> + >> + for (i = 1; i <= maxdiv; i++) { >> + if (!hi6220_is_valid_div(dclk->table, i)) >> + continue; >> + parent_rate = __clk_round_rate(clk_parent, >> + MULT_ROUND_UP(rate, i)); >> + now = parent_rate / i; >> + if (now <= rate && now > best) { >> + bestdiv = i; >> + best = now; >> + *best_parent_rate = parent_rate; >> + } >> + } >> + >> + if (!bestdiv) { >> + bestdiv = hi6220_get_table_maxdiv(dclk->table); >> + *best_parent_rate = __clk_round_rate(clk_parent, 1); >> + } >> + >> + return bestdiv; >> +} >> + >> +static long hi6220_clkdiv_round_rate(struct clk_hw *hw, unsigned long rate, >> + unsigned long *prate) >> +{ >> + int div; >> + >> + if (!rate) >> + rate = 1; >> + >> + div = hi6220_clkdiv_bestdiv(hw, rate, prate); >> + >> + return *prate / div; >> +} >> + >> +static int hi6220_clkdiv_set_rate(struct clk_hw *hw, unsigned long rate, >> + unsigned long parent_rate) >> +{ >> + unsigned int div, value; >> + unsigned long flags = 0; >> + u32 data; >> + struct hi6220_clk_divider *dclk = to_hi6220_clk_divider(hw); >> + >> + div = parent_rate / rate; >> + >> + if (!hi6220_is_valid_div(dclk->table, div)) >> + return -EINVAL; >> + >> + value = hi6220_get_table_val(dclk->table, div); >> + >> + if (value > div_mask(dclk->width)) >> + value = div_mask(dclk->width); >> + >> + if (dclk->lock) >> + spin_lock_irqsave(dclk->lock, flags); >> + >> + data = readl_relaxed(dclk->reg); >> + data &= ~(div_mask(dclk->width) << dclk->shift); >> + data |= value << dclk->shift; >> + data |= dclk->mask; >> + >> + writel_relaxed(data, dclk->reg); >> + >> + if (dclk->lock) >> + spin_unlock_irqrestore(dclk->lock, flags); >> + >> + return 0; >> +} >> + >> +static struct clk_ops hi6220_clkdiv_ops = { >> + .recalc_rate = hi6220_clkdiv_recalc_rate, >> + .round_rate = hi6220_clkdiv_round_rate, >> + .set_rate = hi6220_clkdiv_set_rate, >> +}; >> + >> +struct clk *hi6220_register_clkdiv(struct device *dev, const char *name, >> + const char *parent_name, unsigned long flags, void __iomem *reg, >> + u8 shift, u8 width, u32 mask_bit, spinlock_t *lock) >> +{ >> + struct hi6220_clk_divider *div; >> + struct clk *clk; >> + struct clk_init_data init; >> + struct clk_div_table *table; >> + u32 max_div, min_div; >> + int i; >> + >> + /* allocate the divider */ >> + div = kzalloc(sizeof(struct hi6220_clk_divider), GFP_KERNEL); >> + if (!div) { >> + pr_err("%s: could not allocate divider clk\n", __func__); >> + return ERR_PTR(-ENOMEM); >> + } >> + >> + /* Init the divider table */ >> + max_div = div_mask(width) + 1; >> + min_div = 1; >> + >> + table = kzalloc(sizeof(struct clk_div_table) * (max_div + 1), GFP_KERNEL); >> + if (!table) { >> + kfree(div); >> + pr_err("%s: failed to alloc divider table!\n", __func__); >> + return ERR_PTR(-ENOMEM); >> + } >> + >> + for (i = 0; i < max_div; i++) { >> + table[i].div = min_div + i; >> + table[i].val = table[i].div - 1; >> + } >> + >> + init.name = name; >> + init.ops = &hi6220_clkdiv_ops; >> + init.flags = flags | CLK_IS_BASIC; >> + init.parent_names = parent_name ? &parent_name : NULL; >> + init.num_parents = parent_name ? 1 : 0; >> + >> + /* struct hi6220_clk_divider assignments */ >> + div->reg = reg; >> + div->shift = shift; >> + div->width = width; >> + div->mask = mask_bit ? BIT(mask_bit) : 0; >> + div->lock = lock; >> + div->hw.init = &init; >> + div->table = table; >> + >> + /* register the clock */ >> + clk = clk_register(dev, &div->hw); >> + >> + if (IS_ERR(clk)) { >> + kfree(table); >> + kfree(div); >> + } >> + >> + return clk; >> +} >> diff --git a/include/dt-bindings/clock/hi6220-clock.h b/include/dt-bindings/clock/hi6220-clock.h >> new file mode 100644 >> index 0000000..05033e7 >> --- /dev/null >> +++ b/include/dt-bindings/clock/hi6220-clock.h >> @@ -0,0 +1,172 @@ >> +/* >> + * Copyright (c) 2015 Hisilicon Limited. >> + * >> + * Author: Bintian Wang >> + * >> + * 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. >> + */ >> + >> +#ifndef __DT_BINDINGS_CLOCK_HI6220_H >> +#define __DT_BINDINGS_CLOCK_HI6220_H >> + >> +/* clk in AO (always on) controller */ >> +#define HI6220_NONE_CLOCK 0 >> + >> +/* fixed rate clocks */ >> +#define HI6220_REF32K 1 >> +#define HI6220_CLK_TCXO 2 >> +#define HI6220_MMC1_PAD 3 >> +#define HI6220_MMC2_PAD 4 >> +#define HI6220_MMC0_PAD 5 >> +#define HI6220_PLL_BBP 6 >> +#define HI6220_PLL_GPU 7 >> +#define HI6220_PLL1_DDR 8 >> +#define HI6220_PLL_SYS 9 >> +#define HI6220_PLL_SYS_MEDIA 10 >> +#define HI6220_DDR_SRC 11 >> +#define HI6220_PLL_MEDIA 12 >> +#define HI6220_PLL_DDR 13 >> + >> +/* fixed factor clocks */ >> +#define HI6220_300M 16 >> +#define HI6220_150M 17 >> +#define HI6220_PICOPHY_SRC 18 >> +#define HI6220_MMC0_SRC_SEL 19 >> +#define HI6220_MMC1_SRC_SEL 20 >> +#define HI6220_MMC2_SRC_SEL 21 >> +#define HI6220_VPU_CODEC 22 >> +#define HI6220_MMC0_SMP 23 >> +#define HI6220_MMC1_SMP 24 >> +#define HI6220_MMC2_SMP 25 >> + >> +/* gate clocks */ >> +#define HI6220_WDT0_PCLK 28 >> +#define HI6220_WDT1_PCLK 29 >> +#define HI6220_WDT2_PCLK 30 >> +#define HI6220_TIMER0_PCLK 31 >> +#define HI6220_TIMER1_PCLK 32 >> +#define HI6220_TIMER2_PCLK 33 >> +#define HI6220_TIMER3_PCLK 34 >> +#define HI6220_TIMER4_PCLK 35 >> +#define HI6220_TIMER5_PCLK 36 >> +#define HI6220_TIMER6_PCLK 37 >> +#define HI6220_TIMER7_PCLK 38 >> +#define HI6220_TIMER8_PCLK 39 >> +#define HI6220_UART0_PCLK 40 >> + >> +#define HI6220_AO_NR_CLKS 48 >> + >> +/* clk in systrl */ >> +/* gate clock */ >> +#define HI6220_MMC0_CLK 1 >> +#define HI6220_MMC0_CIUCLK 2 >> +#define HI6220_MMC1_CLK 3 >> +#define HI6220_MMC1_CIUCLK 4 >> +#define HI6220_MMC2_CLK 5 >> +#define HI6220_MMC2_CIUCLK 6 >> +#define HI6220_USBOTG_HCLK 7 >> +#define HI6220_CLK_PICOPHY 8 >> +#define HI6220_HIFI 9 >> +#define HI6220_DACODEC_PCLK 10 >> +#define HI6220_EDMAC_ACLK 11 >> +#define HI6220_CS_ATB 12 >> +#define HI6220_I2C0_CLK 13 >> +#define HI6220_I2C1_CLK 14 >> +#define HI6220_I2C2_CLK 15 >> +#define HI6220_I2C3_CLK 16 >> +#define HI6220_UART1_PCLK 17 >> +#define HI6220_UART2_PCLK 18 >> +#define HI6220_UART3_PCLK 19 >> +#define HI6220_UART4_PCLK 20 >> +#define HI6220_SPI_CLK 21 >> +#define HI6220_MMU_CLK 22 >> +#define HI6220_HIFI_SEL 23 >> +#define HI6220_MMC0_SYSPLL 24 >> +#define HI6220_MMC1_SYSPLL 25 >> +#define HI6220_MMC2_SYSPLL 26 >> +#define HI6220_MMC0_SEL 27 >> +#define HI6220_MMC1_SEL 28 >> +#define HI6220_BBPPLL_SEL 29 >> +#define HI6220_MEDIA_PLL_SRC 30 >> +#define HI6220_MMC2_SEL 31 >> +#define HI6220_CS_ATB_SYSPLL 32 >> + >> +/* mux clocks */ >> +#define HI6220_MMC0_SRC 35 >> +#define HI6220_MMC0_SMP_IN 36 >> +#define HI6220_MMC1_SRC 37 >> +#define HI6220_MMC1_SMP_IN 38 >> +#define HI6220_MMC2_SRC 39 >> +#define HI6220_MMC2_SMP_IN 40 >> +#define HI6220_HIFI_SRC 41 >> +#define HI6220_UART1_SRC 42 >> +#define HI6220_UART2_SRC 43 >> +#define HI6220_UART3_SRC 44 >> +#define HI6220_UART4_SRC 45 >> +#define HI6220_MMC0_MUX0 46 >> +#define HI6220_MMC1_MUX0 47 >> +#define HI6220_MMC2_MUX0 48 >> +#define HI6220_MMC0_MUX1 49 >> +#define HI6220_MMC1_MUX1 50 >> +#define HI6220_MMC2_MUX1 51 >> + >> +/* divider clocks */ >> +#define HI6220_CLK_BUS 54 >> +#define HI6220_MMC0_DIV 55 >> +#define HI6220_MMC1_DIV 56 >> +#define HI6220_MMC2_DIV 57 >> +#define HI6220_HIFI_DIV 58 >> +#define HI6220_BBPPLL0_DIV 59 >> +#define HI6220_CS_DAPB 60 >> +#define HI6220_CS_ATB_DIV 61 >> + >> +#define HI6220_SYS_NR_CLKS 64 >> + >> +/* clk in media controller */ >> +/* gate clocks */ >> +#define HI6220_DSI_PCLK 1 >> +#define HI6220_G3D_PCLK 2 >> +#define HI6220_ACLK_CODEC_VPU 3 >> +#define HI6220_ISP_SCLK 4 >> +#define HI6220_ADE_CORE 5 >> +#define HI6220_MED_MMU 6 >> +#define HI6220_CFG_CSI4PHY 7 >> +#define HI6220_CFG_CSI2PHY 8 >> +#define HI6220_ISP_SCLK_GATE 9 >> +#define HI6220_ISP_SCLK_GATE1 10 >> +#define HI6220_ADE_CORE_GATE 11 >> +#define HI6220_CODEC_VPU_GATE 12 >> +#define HI6220_MED_SYSPLL 13 >> + >> +/* mux clocks */ >> +#define HI6220_1440_1200 20 >> +#define HI6220_1000_1200 21 >> +#define HI6220_1000_1440 22 >> + >> +/* divider clocks */ >> +#define HI6220_CODEC_JPEG 30 >> +#define HI6220_ISP_SCLK_SRC 31 >> +#define HI6220_ISP_SCLK1 32 >> +#define HI6220_ADE_CORE_SRC 33 >> +#define HI6220_ADE_PIX_SRC 34 >> +#define HI6220_G3D_CLK 35 >> +#define HI6220_CODEC_VPU_SRC 36 >> + >> +#define HI6220_MEDIA_NR_CLKS 40 >> + >> +/* clk in power controller */ >> +/* gate clocks */ >> +#define HI6220_PLL_GPU_GATE 1 >> +#define HI6220_PLL1_DDR_GATE 2 >> +#define HI6220_PLL_DDR_GATE 3 >> +#define HI6220_PLL_MEDIA_GATE 4 >> +#define HI6220_PLL0_BBP_GATE 5 >> + >> +/* divider clocks */ >> +#define HI6220_DDRC_SRC 10 >> +#define HI6220_DDRC_AXI1 11 >> + >> +#define HI6220_POWER_NR_CLKS 16 >> +#endif >> -- >> 1.7.9.5 >> >> >> _______________________________________________ >> linux-arm-kernel mailing list >> linux-arm-kernel@lists.infradead.org >> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > > Cheers, > > - Tyler > > [1] http://kernelci.org/build/tbaker/kernel/v3.19-rc7-8241-g7b08f7b75c01/ > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Best Regards, Bintian =========================== Don't be nervous, just be happy! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/