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authorArnd Bergmann <arnd@arndb.de>2014-01-28 21:17:41 +0100
committerArnd Bergmann <arnd@arndb.de>2017-07-27 13:15:50 +0200
commit77a374c29992b1a0e2f4a6e2867324c4de6e23c4 (patch)
tree3b40854e5b7a940cf1c8e02e0a9806394ea5d6fc /arch
parentARM: davinci: normalize clk API (diff)
downloadlinux-77a374c29992b1a0e2f4a6e2867324c4de6e23c4.tar.xz
linux-77a374c29992b1a0e2f4a6e2867324c4de6e23c4.zip
ARM: sa1100: normalize clk API
sa1100 provides its own variant of the clk API rather than using the generic COMMON_CLK API. This generally works, but it causes some link errors with drivers using the clk_set_rate, clk_get_parent, clk_set_parent or clk_round_rate functions when a platform lacks those interfaces. This adds trivial stub implementations for each of them, based on the behavior of the COMMON_CLK implementation: - set_rate() and set_parent() report success without doing anything - round_rate() returns the clk rate - get_parent() returns NULL. This adds the minimal bloat and should do the right thing for the simple clock hardware in this SoC. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-sa1100/clock.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index 0db46895c82a..7d52cd97d96e 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -35,6 +35,31 @@ struct clk clk_##_name = { \
static DEFINE_SPINLOCK(clocks_lock);
+/* Dummy clk routine to build generic kernel parts that may be using them */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ return clk_get_rate(clk);
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+ return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
static void clk_gpio27_enable(struct clk *clk)
{
/*