Commit 8fdb4417 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Daniel Lezcano
Browse files

clocksource/drivers/tango: Remove tango driver 



The tango platform is getting removed, so the driver is no
longer needed.

Cc: Marc Gonzalez <marc.w.gonzalez@free.fr>
Cc: Mans Rullgard <mans@mansr.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarMans Rullgard <mans@mansr.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210120131559.1971359-3-arnd@kernel.org
parent 33105406

drivers/clocksource/Kconfig

+0 −8
Original line number Diff line number Diff line
@@ -551,14 +551,6 @@ config CLKSRC_MIPS_GIC 
	select CLOCKSOURCE_WATCHDOG

	select TIMER_OF



config CLKSRC_TANGO_XTAL

	bool "Clocksource for Tango SoC" if COMPILE_TEST

	depends on ARM

	select TIMER_OF

	select CLKSRC_MMIO

	help

	  This enables the clocksource for Tango SoC.



config CLKSRC_PXA

	bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST

	depends on HAS_IOMEM

drivers/clocksource/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -71,7 +71,6 @@ obj-$(CONFIG_KEYSTONE_TIMER) += timer-keystone.o 
obj-$(CONFIG_INTEGRATOR_AP_TIMER)	+= timer-integrator-ap.o

obj-$(CONFIG_CLKSRC_VERSATILE)		+= timer-versatile.o

obj-$(CONFIG_CLKSRC_MIPS_GIC)		+= mips-gic-timer.o

obj-$(CONFIG_CLKSRC_TANGO_XTAL)		+= timer-tango-xtal.o

obj-$(CONFIG_CLKSRC_IMX_GPT)		+= timer-imx-gpt.o

obj-$(CONFIG_CLKSRC_IMX_TPM)		+= timer-imx-tpm.o

obj-$(CONFIG_TIMER_IMX_SYS_CTR)		+= timer-imx-sysctr.o

drivers/clocksource/timer-tango-xtal.c

deleted100644 → 0
+0 −57
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

#include <linux/clocksource.h>

#include <linux/sched_clock.h>

#include <linux/of_address.h>

#include <linux/printk.h>

#include <linux/delay.h>

#include <linux/init.h>

#include <linux/clk.h>



static void __iomem *xtal_in_cnt;

static struct delay_timer delay_timer;



static unsigned long notrace read_xtal_counter(void)

{

	return readl_relaxed(xtal_in_cnt);

}



static u64 notrace read_sched_clock(void)

{

	return read_xtal_counter();

}



static int __init tango_clocksource_init(struct device_node *np)

{

	struct clk *clk;

	int xtal_freq, ret;



	xtal_in_cnt = of_iomap(np, 0);

	if (xtal_in_cnt == NULL) {

		pr_err("%pOF: invalid address\n", np);

		return -ENXIO;

	}



	clk = of_clk_get(np, 0);

	if (IS_ERR(clk)) {

		pr_err("%pOF: invalid clock\n", np);

		return PTR_ERR(clk);

	}



	xtal_freq = clk_get_rate(clk);

	delay_timer.freq = xtal_freq;

	delay_timer.read_current_timer = read_xtal_counter;



	ret = clocksource_mmio_init(xtal_in_cnt, "tango-xtal", xtal_freq, 350,

				    32, clocksource_mmio_readl_up);

	if (ret) {

		pr_err("%pOF: registration failed\n", np);

		return ret;

	}



	sched_clock_register(read_sched_clock, 32, xtal_freq);

	register_current_timer_delay(&delay_timer);



	return 0;

}



TIMER_OF_DECLARE(tango, "sigma,tick-counter", tango_clocksource_init);