lkml.org 
[lkml]   [2011]   [Feb]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/5] ARM: etm: Don't require clock control
Date
If clk_get fail, assume the etb does not need a separate clock.

Signed-off-by: Arve Hjønnevåg <arve@android.com>
---
arch/arm/kernel/etm.c | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c
index 11db628..308b733 100644
--- a/arch/arm/kernel/etm.c
+++ b/arch/arm/kernel/etm.c
@@ -362,12 +362,10 @@ static int __init etb_probe(struct amba_device *dev, struct amba_id *id)
goto out_unmap;

t->emu_clk = clk_get(&dev->dev, "emu_src_ck");
- if (IS_ERR(t->emu_clk)) {
+ if (IS_ERR(t->emu_clk))
dev_dbg(&dev->dev, "Failed to obtain emu_src_ck.\n");
- return -EFAULT;
- }
-
- clk_enable(t->emu_clk);
+ else
+ clk_enable(t->emu_clk);

etb_unlock(t);
t->etb_bufsz = etb_readl(t, ETBR_DEPTH);
@@ -402,8 +400,10 @@ static int etb_remove(struct amba_device *dev)
iounmap(t->etb_regs);
t->etb_regs = NULL;

- clk_disable(t->emu_clk);
- clk_put(t->emu_clk);
+ if (!IS_ERR(t->emu_clk)) {
+ clk_disable(t->emu_clk);
+ clk_put(t->emu_clk);
+ }

amba_release_regions(dev);

--
1.7.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2011-02-03 03:57    [W:0.126 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site