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ns16650: Make sure we have CONFIG_CLK set before using infrastructure

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We cannot call on the CONFIG_CLK based clk_get_rate function unless
CONFIG_CLK is set.

Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Tom Rini 2016-09-22 15:36:45 -04:00
parent 231af7f95a
commit 82f5279b0c
2 changed files with 17 additions and 15 deletions
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7
drivers/serial/ns16550.c
View file

@ -13,6 +13,7 @@
#include <serial.h>
#include <watchdog.h>
#include <linux/types.h>
#include <linux/compiler.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
@ -353,8 +354,8 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
{
struct ns16550_platdata *plat = dev->platdata;
fdt_addr_t addr;
struct clk clk;
int err;
__maybe_unused struct clk clk;
__maybe_unused int err;
/* try Processor Local Bus device first */
addr = dev_get_addr(dev);
@ -401,6 +402,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"reg-shift", 0);
#ifdef CONFIG_CLK
err = clk_get_by_index(dev, 0, &clk);
if (!err) {
err = clk_get_rate(&clk);
@ -410,6 +412,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
debug("ns16550 failed to get clock\n");
return err;
}
#endif
if (!plat->clock)
plat->clock = fdtdec_get_int(gd->fdt_blob, dev->of_offset,

25
include/clk.h
View file

@ -98,19 +98,6 @@ int clk_get_by_index(struct udevice *dev, int index, struct clk *clk);
* @return 0 if OK, or a negative error code.
*/
int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk);
#else
static inline int clk_get_by_index(struct udevice *dev, int index,
struct clk *clk)
{
return -ENOSYS;
}
static inline int clk_get_by_name(struct udevice *dev, const char *name,
struct clk *clk)
{
return -ENOSYS;
}
#endif
/**
* clk_request - Request a clock by provider-specific ID.
@ -175,5 +162,17 @@ int clk_enable(struct clk *clk);
int clk_disable(struct clk *clk);
int soc_clk_dump(void);
#else
static inline int clk_get_by_index(struct udevice *dev, int index,
struct clk *clk)
{
return -ENOSYS;
}
static inline int clk_get_by_name(struct udevice *dev, const char *name,
struct clk *clk)
{
return -ENOSYS;
}
#endif
#endif