* MIPS: ath79: Use the common clk API
2015-08-19 21:03 ` [PATCH v2 5/5] MIPS: ath79: Use the common clk API Ralf Baechle
@ 2015-08-19 21:10 ` Ralf Baechle
0 siblings, 0 replies; 2+ messages in thread
From: Ralf Baechle @ 2015-08-19 21:10 UTC (permalink / raw)
To: stable
Cc: Alban Bedel, Hauke Mehrtens, linux-mips, Andrew Bresticker,
Qais Yousef, Wolfram Sang, Sergey Ryazanov, Gabor Juhos,
linux-kernel, stable
From: Alban Bedel <albeu@free.fr>
Make the code simpler and open the way for device tree clocks.
[ralf@linux-mips.org: Resolved conflict with 2a552da6 (MIPS/IRQCHIP: Move
irq_chip from arch/mips to drivers/irqchip.)]
In 4.1 this also fixes the following build error:
ERROR: "clk_set_rate" [drivers/usb/phy/phy-generic.ko] undefined!
ERROR: "clk_round_rate" [drivers/media/v4l2-core/videodev.ko] undefined!
ERROR: "clk_set_rate" [drivers/media/v4l2-core/videodev.ko] undefined!
Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9774/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
Upstream commit 411520af8ec9456886359b42628e583ac58e7e44
arch/mips/Kconfig | 1 +
arch/mips/ath79/clock.c | 29 ++---------------------------
2 files changed, 3 insertions(+), 27 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 1c053e2..11cdbac 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -123,6 +123,7 @@ config ATH79
select CSRC_R4K
select DMA_NONCOHERENT
select HAVE_CLK
+ select COMMON_CLK
select CLKDEV_LOOKUP
select IRQ_CPU
select MIPS_MACHINE
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index 26479f4..d59009d 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -17,6 +17,7 @@
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
#include <asm/div64.h>
@@ -28,21 +29,15 @@
#define AR724X_BASE_FREQ 5000000
#define AR913X_BASE_FREQ 5000000
-struct clk {
- unsigned long rate;
-};
-
static void __init ath79_add_sys_clkdev(const char *id, unsigned long rate)
{
struct clk *clk;
int err;
- clk = kzalloc(sizeof(*clk), GFP_KERNEL);
+ clk = clk_register_fixed_rate(NULL, id, NULL, CLK_IS_ROOT, rate);
if (!clk)
panic("failed to allocate %s clock structure", id);
- clk->rate = rate;
-
err = clk_register_clkdev(clk, id, NULL);
if (err)
panic("unable to register %s clock device", id);
@@ -468,23 +463,3 @@ ath79_get_sys_clk_rate(const char *id)
return rate;
}
-
-/*
- * Linux clock API
- */
-int clk_enable(struct clk *clk)
-{
- return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- return clk->rate;
-}
-EXPORT_SYMBOL(clk_get_rate);
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