[v10,27/27] MIPS: jz4740: Drop obsolete code

Message ID	20190302233413.14813-28-paul@crapouillou.net (mailing list archive)
State	Not Applicable
Headers	show Return-Path: <linux-watchdog-owner@kernel.org> From: Paul Cercueil <paul@crapouillou.net> To: Thierry Reding <thierry.reding@gmail.com>, Daniel Lezcano <daniel.lezcano@linaro.org>, Thomas Gleixner <tglx@linutronix.de>, Ralf Baechle <ralf@linux-mips.org>, Paul Burton <paul.burton@mips.com>, James Hogan <jhogan@kernel.org>, Jonathan Corbet <corbet@lwn.net>, =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de> Cc: Mathieu Malaterre <malat@debian.org>, od@zcrc.me, linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-mips@vger.kernel.org, linux-doc@vger.kernel.org, linux-clk@vger.kernel.org, Paul Cercueil <paul@crapouillou.net> Subject: [PATCH v10 27/27] MIPS: jz4740: Drop obsolete code Date: Sat, 2 Mar 2019 20:34:13 -0300 Message-Id: <20190302233413.14813-28-paul@crapouillou.net> In-Reply-To: <20190302233413.14813-1-paul@crapouillou.net> References: <20190302233413.14813-1-paul@crapouillou.net> Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk
Series	Ingenic TCU patchset \| expand [5.2,v10,00/27] Ingenic TCU patchset [v10,01/27] dt-bindings: ingenic: Add DT bindings for TCU clocks [v10,02/27] doc: Add doc for the Ingenic TCU hardware [v10,03/27] dt-bindings: Add doc for the Ingenic TCU drivers [v10,04/27] clocksource: Add a new timer-ingenic driver [v10,05/27] clocksource: Add driver for the Ingenic JZ47xx OST [v10,06/27] MAINTAINERS: Add myself as maintainer for Ingenic TCU drivers [v10,07/27] watchdog: jz4740: Use WDT clock provided by TCU driver [v10,08/27] watchdog: jz4740: Use regmap provided by TCU driver [v10,09/27] watchdog: jz4740: Avoid starting watchdog in set_timeout [v10,10/27] watchdog: jz4740: Drop dependency on MACH_JZ47xx, use COMPILE_TEST [v10,11/27] pwm: jz4740: Apply configuration atomically [v10,12/27] pwm: jz4740: Use regmap from TCU driver [v10,13/27] pwm: jz4740: Use clocks from TCU driver [v10,14/27] pwm: jz4740: Improve algorithm of clock calculation [v10,15/27] pwm: jz4740: Allow selection of PWM channels 0 and 1 [v10,16/27] pwm: jz4740: Drop dependency on MACH_INGENIC, use COMPILE_TEST [v10,17/27] pwm: jz4740: Remove unused devicetree compatible strings [v10,18/27] clk: jz4740: Add TCU clock [v10,19/27] MIPS: Kconfig: Select TCU timer driver when MACH_INGENIC is set [v10,20/27] MIPS: jz4740: Add DTS nodes for the TCU drivers [v10,21/27] MIPS: qi_lb60: Move PWM devices to devicetree [v10,22/27] MIPS: qi_lb60: Reduce system timer and clocksource to 750 kHz [v10,23/27] MIPS: CI20: Reduce system timer and clocksource to 3 MHz [v10,24/27] MIPS: CI20: defconfig: enable OST driver [v10,25/27] MIPS: GCW0: Reduce system timer and clocksource to 750 kHz [v10,26/27] MIPS: GCW0: defconfig: Enable OST, watchdog, PWM drivers [v10,27/27] MIPS: jz4740: Drop obsolete code

diff --git a/arch/mips/include/asm/mach-jz4740/platform.h b/arch/mips/include/asm/mach-jz4740/platform.h index c0c932ac72a7..cd464d956882 100644 --- a/arch/mips/include/asm/mach-jz4740/platform.h +++ b/arch/mips/include/asm/mach-jz4740/platform.h @@ -29,7 +29,6 @@ extern struct platform_device jz4740_i2s_device; extern struct platform_device jz4740_pcm_device; extern struct platform_device jz4740_codec_device; extern struct platform_device jz4740_adc_device; -extern struct platform_device jz4740_pwm_device; extern struct platform_device jz4740_dma_device; #endif diff --git a/arch/mips/include/asm/mach-jz4740/timer.h b/arch/mips/include/asm/mach-jz4740/timer.h deleted file mode 100644 index 8750a1d04e22..000000000000 --- a/arch/mips/include/asm/mach-jz4740/timer.h +++ /dev/null @@ -1,135 +0,0 @@ -/* - * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> - * JZ4740 platform timer support - * - * 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. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#ifndef __ASM_MACH_JZ4740_TIMER -#define __ASM_MACH_JZ4740_TIMER - -#define JZ_REG_TIMER_STOP 0x0C -#define JZ_REG_TIMER_STOP_SET 0x1C -#define JZ_REG_TIMER_STOP_CLEAR 0x2C -#define JZ_REG_TIMER_ENABLE 0x00 -#define JZ_REG_TIMER_ENABLE_SET 0x04 -#define JZ_REG_TIMER_ENABLE_CLEAR 0x08 -#define JZ_REG_TIMER_FLAG 0x10 -#define JZ_REG_TIMER_FLAG_SET 0x14 -#define JZ_REG_TIMER_FLAG_CLEAR 0x18 -#define JZ_REG_TIMER_MASK 0x20 -#define JZ_REG_TIMER_MASK_SET 0x24 -#define JZ_REG_TIMER_MASK_CLEAR 0x28 - -#define JZ_REG_TIMER_DFR(x) (((x) * 0x10) + 0x30) -#define JZ_REG_TIMER_DHR(x) (((x) * 0x10) + 0x34) -#define JZ_REG_TIMER_CNT(x) (((x) * 0x10) + 0x38) -#define JZ_REG_TIMER_CTRL(x) (((x) * 0x10) + 0x3C) - -#define JZ_TIMER_IRQ_HALF(x) BIT((x) + 0x10) -#define JZ_TIMER_IRQ_FULL(x) BIT(x) - -#define JZ_TIMER_CTRL_PWM_ABBRUPT_SHUTDOWN BIT(9) -#define JZ_TIMER_CTRL_PWM_ACTIVE_LOW BIT(8) -#define JZ_TIMER_CTRL_PWM_ENABLE BIT(7) -#define JZ_TIMER_CTRL_PRESCALE_MASK 0x1c -#define JZ_TIMER_CTRL_PRESCALE_OFFSET 0x3 -#define JZ_TIMER_CTRL_PRESCALE_1 (0 << 3) -#define JZ_TIMER_CTRL_PRESCALE_4 (1 << 3) -#define JZ_TIMER_CTRL_PRESCALE_16 (2 << 3) -#define JZ_TIMER_CTRL_PRESCALE_64 (3 << 3) -#define JZ_TIMER_CTRL_PRESCALE_256 (4 << 3) -#define JZ_TIMER_CTRL_PRESCALE_1024 (5 << 3) - -#define JZ_TIMER_CTRL_PRESCALER(x) ((x) << JZ_TIMER_CTRL_PRESCALE_OFFSET) - -#define JZ_TIMER_CTRL_SRC_EXT BIT(2) -#define JZ_TIMER_CTRL_SRC_RTC BIT(1) -#define JZ_TIMER_CTRL_SRC_PCLK BIT(0) - -extern void __iomem *jz4740_timer_base; -void __init jz4740_timer_init(void); - -void jz4740_timer_enable_watchdog(void); -void jz4740_timer_disable_watchdog(void); - -static inline void jz4740_timer_stop(unsigned int timer) -{ - writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_SET); -} - -static inline void jz4740_timer_start(unsigned int timer) -{ - writel(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR); -} - -static inline bool jz4740_timer_is_enabled(unsigned int timer) -{ - return readb(jz4740_timer_base + JZ_REG_TIMER_ENABLE) & BIT(timer); -} - -static inline void jz4740_timer_enable(unsigned int timer) -{ - writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_SET); -} - -static inline void jz4740_timer_disable(unsigned int timer) -{ - writeb(BIT(timer), jz4740_timer_base + JZ_REG_TIMER_ENABLE_CLEAR); -} - -static inline void jz4740_timer_set_period(unsigned int timer, uint16_t period) -{ - writew(period, jz4740_timer_base + JZ_REG_TIMER_DFR(timer)); -} - -static inline void jz4740_timer_set_duty(unsigned int timer, uint16_t duty) -{ - writew(duty, jz4740_timer_base + JZ_REG_TIMER_DHR(timer)); -} - -static inline void jz4740_timer_set_count(unsigned int timer, uint16_t count) -{ - writew(count, jz4740_timer_base + JZ_REG_TIMER_CNT(timer)); -} - -static inline uint16_t jz4740_timer_get_count(unsigned int timer) -{ - return readw(jz4740_timer_base + JZ_REG_TIMER_CNT(timer)); -} - -static inline void jz4740_timer_ack_full(unsigned int timer) -{ - writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR); -} - -static inline void jz4740_timer_irq_full_enable(unsigned int timer) -{ - writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_FLAG_CLEAR); - writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_CLEAR); -} - -static inline void jz4740_timer_irq_full_disable(unsigned int timer) -{ - writel(JZ_TIMER_IRQ_FULL(timer), jz4740_timer_base + JZ_REG_TIMER_MASK_SET); -} - -static inline void jz4740_timer_set_ctrl(unsigned int timer, uint16_t ctrl) -{ - writew(ctrl, jz4740_timer_base + JZ_REG_TIMER_CTRL(timer)); -} - -static inline uint16_t jz4740_timer_get_ctrl(unsigned int timer) -{ - return readw(jz4740_timer_base + JZ_REG_TIMER_CTRL(timer)); -} - -#endif diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile index 88d6aa7d000b..72eb805028a4 100644 --- a/arch/mips/jz4740/Makefile +++ b/arch/mips/jz4740/Makefile @@ -5,8 +5,7 @@ # Object file lists. -obj-y += prom.o time.o reset.o setup.o \ - platform.o timer.o +obj-y += prom.o reset.o setup.o platform.o CFLAGS_setup.o = -I$(src)/../../../scripts/dtc/libfdt diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c index cbc5f8e87230..af0ecaeb4931 100644 --- a/arch/mips/jz4740/platform.c +++ b/arch/mips/jz4740/platform.c @@ -233,12 +233,6 @@ struct platform_device jz4740_adc_device = { .resource = jz4740_adc_resources, }; -/* PWM */ -struct platform_device jz4740_pwm_device = { - .name = "jz4740-pwm", - .id = -1, -}; - /* DMA */ static struct resource jz4740_dma_resources[] = { { diff --git a/arch/mips/jz4740/setup.c b/arch/mips/jz4740/setup.c index afb40f8bce96..099e4164afff 100644 --- a/arch/mips/jz4740/setup.c +++ b/arch/mips/jz4740/setup.c @@ -14,6 +14,8 @@ * */ +#include <linux/clk-provider.h> +#include <linux/clocksource.h> #include <linux/init.h> #include <linux/io.h> #include <linux/irqchip.h> @@ -101,3 +103,9 @@ void __init arch_init_irq(void) { irqchip_init(); } + +void __init plat_time_init(void) +{ + of_clk_init(NULL); + timer_probe(); +} diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c deleted file mode 100644 index 2ca9160f642a..000000000000 --- a/arch/mips/jz4740/time.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> - * JZ4740 platform time support - * - * 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. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <linux/clk.h> -#include <linux/clk-provider.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/time.h> - -#include <linux/clockchips.h> -#include <linux/sched_clock.h> - -#include <asm/mach-jz4740/clock.h> -#include <asm/mach-jz4740/irq.h> -#include <asm/mach-jz4740/timer.h> -#include <asm/time.h> - -#include "clock.h" - -#define TIMER_CLOCKEVENT 0 -#define TIMER_CLOCKSOURCE 1 - -static uint16_t jz4740_jiffies_per_tick; - -static u64 jz4740_clocksource_read(struct clocksource *cs) -{ - return jz4740_timer_get_count(TIMER_CLOCKSOURCE); -} - -static struct clocksource jz4740_clocksource = { - .name = "jz4740-timer", - .rating = 200, - .read = jz4740_clocksource_read, - .mask = CLOCKSOURCE_MASK(16), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -static u64 notrace jz4740_read_sched_clock(void) -{ - return jz4740_timer_get_count(TIMER_CLOCKSOURCE); -} - -static irqreturn_t jz4740_clockevent_irq(int irq, void *devid) -{ - struct clock_event_device *cd = devid; - - jz4740_timer_ack_full(TIMER_CLOCKEVENT); - - if (!clockevent_state_periodic(cd)) - jz4740_timer_disable(TIMER_CLOCKEVENT); - - cd->event_handler(cd); - - return IRQ_HANDLED; -} - -static int jz4740_clockevent_set_periodic(struct clock_event_device *evt) -{ - jz4740_timer_set_count(TIMER_CLOCKEVENT, 0); - jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick); - jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT); - jz4740_timer_enable(TIMER_CLOCKEVENT); - - return 0; -} - -static int jz4740_clockevent_resume(struct clock_event_device *evt) -{ - jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT); - jz4740_timer_enable(TIMER_CLOCKEVENT); - - return 0; -} - -static int jz4740_clockevent_shutdown(struct clock_event_device *evt) -{ - jz4740_timer_disable(TIMER_CLOCKEVENT); - - return 0; -} - -static int jz4740_clockevent_set_next(unsigned long evt, - struct clock_event_device *cd) -{ - jz4740_timer_set_count(TIMER_CLOCKEVENT, 0); - jz4740_timer_set_period(TIMER_CLOCKEVENT, evt); - jz4740_timer_enable(TIMER_CLOCKEVENT); - - return 0; -} - -static struct clock_event_device jz4740_clockevent = { - .name = "jz4740-timer", - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_next_event = jz4740_clockevent_set_next, - .set_state_shutdown = jz4740_clockevent_shutdown, - .set_state_periodic = jz4740_clockevent_set_periodic, - .set_state_oneshot = jz4740_clockevent_shutdown, - .tick_resume = jz4740_clockevent_resume, - .rating = 200, -#ifdef CONFIG_MACH_JZ4740 - .irq = JZ4740_IRQ_TCU0, -#endif -#if defined(CONFIG_MACH_JZ4770) || defined(CONFIG_MACH_JZ4780) - .irq = JZ4780_IRQ_TCU2, -#endif -}; - -static struct irqaction timer_irqaction = { - .handler = jz4740_clockevent_irq, - .flags = IRQF_PERCPU | IRQF_TIMER, - .name = "jz4740-timerirq", - .dev_id = &jz4740_clockevent, -}; - -void __init plat_time_init(void) -{ - int ret; - uint32_t clk_rate; - uint16_t ctrl; - struct clk *ext_clk; - - of_clk_init(NULL); - jz4740_timer_init(); - - ext_clk = clk_get(NULL, "ext"); - if (IS_ERR(ext_clk)) - panic("unable to get ext clock"); - clk_rate = clk_get_rate(ext_clk) >> 4; - clk_put(ext_clk); - - jz4740_jiffies_per_tick = DIV_ROUND_CLOSEST(clk_rate, HZ); - - clockevent_set_clock(&jz4740_clockevent, clk_rate); - jz4740_clockevent.min_delta_ns = clockevent_delta2ns(100, &jz4740_clockevent); - jz4740_clockevent.min_delta_ticks = 100; - jz4740_clockevent.max_delta_ns = clockevent_delta2ns(0xffff, &jz4740_clockevent); - jz4740_clockevent.max_delta_ticks = 0xffff; - jz4740_clockevent.cpumask = cpumask_of(0); - - clockevents_register_device(&jz4740_clockevent); - - ret = clocksource_register_hz(&jz4740_clocksource, clk_rate); - - if (ret) - printk(KERN_ERR "Failed to register clocksource: %d\n", ret); - - sched_clock_register(jz4740_read_sched_clock, 16, clk_rate); - - setup_irq(jz4740_clockevent.irq, &timer_irqaction); - - ctrl = JZ_TIMER_CTRL_PRESCALE_16 | JZ_TIMER_CTRL_SRC_EXT; - - jz4740_timer_set_ctrl(TIMER_CLOCKEVENT, ctrl); - jz4740_timer_set_ctrl(TIMER_CLOCKSOURCE, ctrl); - - jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick); - jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT); - - jz4740_timer_set_period(TIMER_CLOCKSOURCE, 0xffff); - - jz4740_timer_enable(TIMER_CLOCKEVENT); - jz4740_timer_enable(TIMER_CLOCKSOURCE); -} diff --git a/arch/mips/jz4740/timer.c b/arch/mips/jz4740/timer.c deleted file mode 100644 index 777877feef71..000000000000 --- a/arch/mips/jz4740/timer.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> - * JZ4740 platform timer support - * - * 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. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <linux/export.h> -#include <linux/io.h> -#include <linux/init.h> -#include <linux/kernel.h> - -#include <asm/mach-jz4740/base.h> -#include <asm/mach-jz4740/timer.h> - -void __iomem *jz4740_timer_base; -EXPORT_SYMBOL_GPL(jz4740_timer_base); - -void jz4740_timer_enable_watchdog(void) -{ - writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR); -} -EXPORT_SYMBOL_GPL(jz4740_timer_enable_watchdog); - -void jz4740_timer_disable_watchdog(void) -{ - writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_SET); -} -EXPORT_SYMBOL_GPL(jz4740_timer_disable_watchdog); - -void __init jz4740_timer_init(void) -{ - jz4740_timer_base = ioremap(JZ4740_TCU_BASE_ADDR, 0x100); - - if (!jz4740_timer_base) - panic("Failed to ioremap timer registers"); - - /* Disable all timer clocks except for those used as system timers */ - writel(0x000100fc, jz4740_timer_base + JZ_REG_TIMER_STOP_SET); - - /* Timer irqs are unmasked by default, mask them */ - writel(0x00ff00ff, jz4740_timer_base + JZ_REG_TIMER_MASK_SET); -}

[v10,27/27] MIPS: jz4740: Drop obsolete code

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