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authorDaniel Lezcano <daniel.lezcano@linaro.org>2018-09-24 05:59:23 +0200
committerDaniel Lezcano <daniel.lezcano@linaro.org>2018-10-03 14:37:02 +0200
commit9d8d47ea6ec6048abc75ccc4486aff1a7db1ff4b (patch)
treedb6f3c927cec985e4e6e7342c12c554004a2d1e0 /drivers/clocksource/timer-versatile.c
parentclocksource/drivers/sh_cmt: Add R-Car gen3 support (diff)
downloadlinux-dev-9d8d47ea6ec6048abc75ccc4486aff1a7db1ff4b.tar.xz
linux-dev-9d8d47ea6ec6048abc75ccc4486aff1a7db1ff4b.zip
clocksource/drivers: Unify the names to timer-* format
In order to make some housekeeping in the directory, this patch renames drivers to the timer-* format in order to unify their names. There is no functional changes. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/timer-versatile.c')
-rw-r--r--drivers/clocksource/timer-versatile.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/clocksource/timer-versatile.c b/drivers/clocksource/timer-versatile.c
new file mode 100644
index 000000000000..39725d38aede
--- /dev/null
+++ b/drivers/clocksource/timer-versatile.c
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2014 ARM Limited
+ */
+
+#include <linux/clocksource.h>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/sched_clock.h>
+
+#define SYS_24MHZ 0x05c
+
+static void __iomem *versatile_sys_24mhz;
+
+static u64 notrace versatile_sys_24mhz_read(void)
+{
+ return readl(versatile_sys_24mhz);
+}
+
+static int __init versatile_sched_clock_init(struct device_node *node)
+{
+ void __iomem *base = of_iomap(node, 0);
+
+ if (!base)
+ return -ENXIO;
+
+ versatile_sys_24mhz = base + SYS_24MHZ;
+
+ sched_clock_register(versatile_sys_24mhz_read, 32, 24000000);
+
+ return 0;
+}
+TIMER_OF_DECLARE(vexpress, "arm,vexpress-sysreg",
+ versatile_sched_clock_init);
+TIMER_OF_DECLARE(versatile, "arm,versatile-sysreg",
+ versatile_sched_clock_init);