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authorGeert Uytterhoeven <geert@linux-m68k.org>2018-06-11 10:44:22 +0200
committerPaul Burton <paul.burton@mips.com>2018-06-28 14:28:59 -0700
commit6b5939d2e528525a1514adabe635f5f8f7328744 (patch)
tree370ffa6064a0be9a271573c0898f28aa34d623bb /arch/mips/ar7
parent344ebf09949c31bcb8818d8458b65add29f1d67b (diff)
downloadlinux-6b5939d2e528525a1514adabe635f5f8f7328744.tar.bz2
MIPS: AR7: Normalize clk API
Coldfire still 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_round_rate(), clk_set_rate(), clk_set_parent(), or clk_get_parent() functions when a platform lacks those interfaces. This adds empty stub implementations for each of them, and I don't even try to do something useful here but instead just print a WARN() message to make it obvious what is going on if they ever end up being called. The drivers that call these won't be used on these platforms (otherwise we'd get a link error today), so the added code is harmless bloat and will warn about accidental use. Based on commit bd7fefe1f06ca6cc ("ARM: w90x900: normalize clk API"). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/19503/ Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@linux-mips.org Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/ar7')
-rw-r--r--arch/mips/ar7/clock.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c
index 0137656107a9..6b64fd96dba8 100644
--- a/arch/mips/ar7/clock.c
+++ b/arch/mips/ar7/clock.c
@@ -476,3 +476,32 @@ void __init ar7_init_clocks(void)
/* adjust vbus clock rate */
vbus_clk.rate = bus_clk.rate / 2;
}
+
+/* dummy functions, should not be called */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+ WARN_ON(clk);
+ return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);