[PATCH v2 1/7] mips: ar7: convert to clkdev_lookup

Arnd Bergmann
2021-06-08T15:24:23Z

ar7 is one of only two platforms that provide the clock interface but
implement a custom version of the clkdev_lookup code.

Change this to use the generic version instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/mips/Kconfig | 1 +
arch/mips/ar7/clock.c | 31 +++++++++++--------------------
2 files changed, 12 insertions(+), 20 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ed51970c08e7..1cc03a7652a9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -215,6 +215,7 @@ config AR7
select SYS_SUPPORTS_ZBOOT_UART16550
select GPIOLIB
select VLYNQ
+ select CLKDEV_LOOKUP
select HAVE_LEGACY_CLK
help
Support for the Texas Instruments AR7 System-on-a-Chip
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c
index 95def949c971..e8648e3eb27b 100644
--- a/arch/mips/ar7/clock.c
+++ b/arch/mips/ar7/clock.c
@@ -13,6 +13,7 @@
#include <linux/gcd.h>
#include <linux/io.h>
#include <linux/err.h>
+#include <linux/clkdev.h>
#include <linux/clk.h>

#include <asm/addrspace.h>
@@ -424,27 +425,15 @@ unsigned long clk_get_rate(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_rate);

-struct clk *clk_get(struct device *dev, const char *id)
-{
- if (!strcmp(id, "bus"))
- return &bus_clk;
+static struct clk_lookup ar7_clkdev_table[] = {
+ CLKDEV_INIT(NULL, "bus", &bus_clk),
/* cpmac and vbus share the same rate */
- if (!strcmp(id, "cpmac"))
- return &vbus_clk;
- if (!strcmp(id, "cpu"))
- return &cpu_clk;
- if (!strcmp(id, "dsp"))
- return &dsp_clk;
- if (!strcmp(id, "vbus"))
- return &vbus_clk;
- return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
+ CLKDEV_INIT("cpmac.0", "cpmac", &vbus_clk),
+ CLKDEV_INIT("cpmac.1", "cpmac", &vbus_clk),
+ CLKDEV_INIT(NULL, "cpu", &cpu_clk),
+ CLKDEV_INIT(NULL, "dsp", &dsp_clk),
+ CLKDEV_INIT(NULL, "vbus", &vbus_clk),
+};

void __init ar7_init_clocks(void)
{
@@ -462,6 +451,8 @@ void __init ar7_init_clocks(void)
}
/* adjust vbus clock rate */
vbus_clk.rate = bus_clk.rate / 2;
+
+ clkdev_add_table(ar7_clkdev_table, ARRAY_SIZE(ar7_clkdev_table));
}

/* dummy functions, should not be called */
--
2.29.2