clocksource/drivers/rockchip: Change name rockchip_timer to timer-rockchip

In order to unify the names in this directory, let's rename the driver to be
prefixed with timer-*

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 0 insertions, 307 deletions

diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c
deleted file mode 100644
index 33f370dbd0d6..000000000000
--- a/drivers/clocksource/rockchip_timer.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * Rockchip timer support
- *
- * Copyright (C) Daniel Lezcano <daniel.lezcano@linaro.org>
- *
- * 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/clk.h>
-#include <linux/clockchips.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/sched_clock.h>
-#include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#define TIMER_NAME "rk_timer"
-
-#define TIMER_LOAD_COUNT0	0x00
-#define TIMER_LOAD_COUNT1	0x04
-#define TIMER_CURRENT_VALUE0	0x08
-#define TIMER_CURRENT_VALUE1	0x0C
-#define TIMER_CONTROL_REG3288	0x10
-#define TIMER_CONTROL_REG3399	0x1c
-#define TIMER_INT_STATUS	0x18
-
-#define TIMER_DISABLE		0x0
-#define TIMER_ENABLE		0x1
-#define TIMER_MODE_FREE_RUNNING			(0 << 1)
-#define TIMER_MODE_USER_DEFINED_COUNT		(1 << 1)
-#define TIMER_INT_UNMASK			(1 << 2)
-
-struct rk_timer {
-	void __iomem *base;
-	void __iomem *ctrl;
-	struct clk *clk;
-	struct clk *pclk;
-	u32 freq;
-	int irq;
-};
-
-struct rk_clkevt {
-	struct clock_event_device ce;
-	struct rk_timer timer;
-};
-
-static struct rk_clkevt *rk_clkevt;
-static struct rk_timer *rk_clksrc;
-
-static inline struct rk_timer *rk_timer(struct clock_event_device *ce)
-{
-	return &container_of(ce, struct rk_clkevt, ce)->timer;
-}
-
-static inline void rk_timer_disable(struct rk_timer *timer)
-{
-	writel_relaxed(TIMER_DISABLE, timer->ctrl);
-}
-
-static inline void rk_timer_enable(struct rk_timer *timer, u32 flags)
-{
-	writel_relaxed(TIMER_ENABLE | flags, timer->ctrl);
-}
-
-static void rk_timer_update_counter(unsigned long cycles,
-				    struct rk_timer *timer)
-{
-	writel_relaxed(cycles, timer->base + TIMER_LOAD_COUNT0);
-	writel_relaxed(0, timer->base + TIMER_LOAD_COUNT1);
-}
-
-static void rk_timer_interrupt_clear(struct rk_timer *timer)
-{
-	writel_relaxed(1, timer->base + TIMER_INT_STATUS);
-}
-
-static inline int rk_timer_set_next_event(unsigned long cycles,
-					  struct clock_event_device *ce)
-{
-	struct rk_timer *timer = rk_timer(ce);
-
-	rk_timer_disable(timer);
-	rk_timer_update_counter(cycles, timer);
-	rk_timer_enable(timer, TIMER_MODE_USER_DEFINED_COUNT |
-			       TIMER_INT_UNMASK);
-	return 0;
-}
-
-static int rk_timer_shutdown(struct clock_event_device *ce)
-{
-	struct rk_timer *timer = rk_timer(ce);
-
-	rk_timer_disable(timer);
-	return 0;
-}
-
-static int rk_timer_set_periodic(struct clock_event_device *ce)
-{
-	struct rk_timer *timer = rk_timer(ce);
-
-	rk_timer_disable(timer);
-	rk_timer_update_counter(timer->freq / HZ - 1, timer);
-	rk_timer_enable(timer, TIMER_MODE_FREE_RUNNING | TIMER_INT_UNMASK);
-	return 0;
-}
-
-static irqreturn_t rk_timer_interrupt(int irq, void *dev_id)
-{
-	struct clock_event_device *ce = dev_id;
-	struct rk_timer *timer = rk_timer(ce);
-
-	rk_timer_interrupt_clear(timer);
-
-	if (clockevent_state_oneshot(ce))
-		rk_timer_disable(timer);
-
-	ce->event_handler(ce);
-
-	return IRQ_HANDLED;
-}
-
-static u64 notrace rk_timer_sched_read(void)
-{
-	return ~readl_relaxed(rk_clksrc->base + TIMER_CURRENT_VALUE0);
-}
-
-static int __init
-rk_timer_probe(struct rk_timer *timer, struct device_node *np)
-{
-	struct clk *timer_clk;
-	struct clk *pclk;
-	int ret = -EINVAL, irq;
-	u32 ctrl_reg = TIMER_CONTROL_REG3288;
-
-	timer->base = of_iomap(np, 0);
-	if (!timer->base) {
-		pr_err("Failed to get base address for '%s'\n", TIMER_NAME);
-		return -ENXIO;
-	}
-
-	if (of_device_is_compatible(np, "rockchip,rk3399-timer"))
-		ctrl_reg = TIMER_CONTROL_REG3399;
-
-	timer->ctrl = timer->base + ctrl_reg;
-
-	pclk = of_clk_get_by_name(np, "pclk");
-	if (IS_ERR(pclk)) {
-		ret = PTR_ERR(pclk);
-		pr_err("Failed to get pclk for '%s'\n", TIMER_NAME);
-		goto out_unmap;
-	}
-
-	ret = clk_prepare_enable(pclk);
-	if (ret) {
-		pr_err("Failed to enable pclk for '%s'\n", TIMER_NAME);
-		goto out_unmap;
-	}
-	timer->pclk = pclk;
-
-	timer_clk = of_clk_get_by_name(np, "timer");
-	if (IS_ERR(timer_clk)) {
-		ret = PTR_ERR(timer_clk);
-		pr_err("Failed to get timer clock for '%s'\n", TIMER_NAME);
-		goto out_timer_clk;
-	}
-
-	ret = clk_prepare_enable(timer_clk);
-	if (ret) {
-		pr_err("Failed to enable timer clock\n");
-		goto out_timer_clk;
-	}
-	timer->clk = timer_clk;
-
-	timer->freq = clk_get_rate(timer_clk);
-
-	irq = irq_of_parse_and_map(np, 0);
-	if (!irq) {
-		ret = -EINVAL;
-		pr_err("Failed to map interrupts for '%s'\n", TIMER_NAME);
-		goto out_irq;
-	}
-	timer->irq = irq;
-
-	rk_timer_interrupt_clear(timer);
-	rk_timer_disable(timer);
-	return 0;
-
-out_irq:
-	clk_disable_unprepare(timer_clk);
-out_timer_clk:
-	clk_disable_unprepare(pclk);
-out_unmap:
-	iounmap(timer->base);
-
-	return ret;
-}
-
-static void __init rk_timer_cleanup(struct rk_timer *timer)
-{
-	clk_disable_unprepare(timer->clk);
-	clk_disable_unprepare(timer->pclk);
-	iounmap(timer->base);
-}
-
-static int __init rk_clkevt_init(struct device_node *np)
-{
-	struct clock_event_device *ce;
-	int ret = -EINVAL;
-
-	rk_clkevt = kzalloc(sizeof(struct rk_clkevt), GFP_KERNEL);
-	if (!rk_clkevt) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	ret = rk_timer_probe(&rk_clkevt->timer, np);
-	if (ret)
-		goto out_probe;
-
-	ce = &rk_clkevt->ce;
-	ce->name = TIMER_NAME;
-	ce->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
-		       CLOCK_EVT_FEAT_DYNIRQ;
-	ce->set_next_event = rk_timer_set_next_event;
-	ce->set_state_shutdown = rk_timer_shutdown;
-	ce->set_state_periodic = rk_timer_set_periodic;
-	ce->irq = rk_clkevt->timer.irq;
-	ce->cpumask = cpu_possible_mask;
-	ce->rating = 250;
-
-	ret = request_irq(rk_clkevt->timer.irq, rk_timer_interrupt, IRQF_TIMER,
-			  TIMER_NAME, ce);
-	if (ret) {
-		pr_err("Failed to initialize '%s': %d\n",
-			TIMER_NAME, ret);
-		goto out_irq;
-	}
-
-	clockevents_config_and_register(&rk_clkevt->ce,
-					rk_clkevt->timer.freq, 1, UINT_MAX);
-	return 0;
-
-out_irq:
-	rk_timer_cleanup(&rk_clkevt->timer);
-out_probe:
-	kfree(rk_clkevt);
-out:
-	/* Leave rk_clkevt not NULL to prevent future init */
-	rk_clkevt = ERR_PTR(ret);
-	return ret;
-}
-
-static int __init rk_clksrc_init(struct device_node *np)
-{
-	int ret = -EINVAL;
-
-	rk_clksrc = kzalloc(sizeof(struct rk_timer), GFP_KERNEL);
-	if (!rk_clksrc) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	ret = rk_timer_probe(rk_clksrc, np);
-	if (ret)
-		goto out_probe;
-
-	rk_timer_update_counter(UINT_MAX, rk_clksrc);
-	rk_timer_enable(rk_clksrc, 0);
-
-	ret = clocksource_mmio_init(rk_clksrc->base + TIMER_CURRENT_VALUE0,
-		TIMER_NAME, rk_clksrc->freq, 250, 32,
-		clocksource_mmio_readl_down);
-	if (ret) {
-		pr_err("Failed to register clocksource\n");
-		goto out_clocksource;
-	}
-
-	sched_clock_register(rk_timer_sched_read, 32, rk_clksrc->freq);
-	return 0;
-
-out_clocksource:
-	rk_timer_cleanup(rk_clksrc);
-out_probe:
-	kfree(rk_clksrc);
-out:
-	/* Leave rk_clksrc not NULL to prevent future init */
-	rk_clksrc = ERR_PTR(ret);
-	return ret;
-}
-
-static int __init rk_timer_init(struct device_node *np)
-{
-	if (!rk_clkevt)
-		return rk_clkevt_init(np);
-
-	if (!rk_clksrc)
-		return rk_clksrc_init(np);
-
-	pr_err("Too many timer definitions for '%s'\n", TIMER_NAME);
-	return -EINVAL;
-}
-
-TIMER_OF_DECLARE(rk3288_timer, "rockchip,rk3288-timer", rk_timer_init);
-TIMER_OF_DECLARE(rk3399_timer, "rockchip,rk3399-timer", rk_timer_init);