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authorTony Lindgren <tony@atomide.com>2005-07-10 19:58:18 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-07-10 19:58:18 +0100
commitbb13b5fdba16d5b30fe97f3d167bb138b978b71c (patch)
tree23e706d3412b29579909c499e1d9e62cc40a6f5e /arch/arm/plat-omap/mux.c
parentd48af15ea7227d633ddd5002223c2b122b1032e1 (diff)
downloadop-kernel-dev-bb13b5fdba16d5b30fe97f3d167bb138b978b71c.zip
op-kernel-dev-bb13b5fdba16d5b30fe97f3d167bb138b978b71c.tar.gz
[PATCH] ARM: 2804/1: OMAP update 9/11: Update OMAP arch files
Patch from Tony Lindgren This patch by various OMAP developers syncs the OMAP specific arch files with the linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-omap/mux.c')
-rw-r--r--arch/arm/plat-omap/mux.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index cbecd10..ea7b955 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -53,19 +53,13 @@ omap_cfg_reg(const reg_cfg_t reg_cfg)
return -EINVAL;
}
- cfg = &reg_cfg_table[reg_cfg];
-
- /*
- * We do a pretty long section here with lock on, but pin muxing
- * should only happen on driver init for each driver, so it's not time
- * critical.
- */
- spin_lock_irqsave(&mux_spin_lock, flags);
+ cfg = (reg_cfg_set *)&reg_cfg_table[reg_cfg];
/* Check the mux register in question */
if (cfg->mux_reg) {
unsigned tmp1, tmp2;
+ spin_lock_irqsave(&mux_spin_lock, flags);
reg_orig = omap_readl(cfg->mux_reg);
/* The mux registers always seem to be 3 bits long */
@@ -80,11 +74,13 @@ omap_cfg_reg(const reg_cfg_t reg_cfg)
warn = 1;
omap_writel(reg, cfg->mux_reg);
+ spin_unlock_irqrestore(&mux_spin_lock, flags);
}
/* Check for pull up or pull down selection on 1610 */
if (!cpu_is_omap1510()) {
if (cfg->pu_pd_reg && cfg->pull_val) {
+ spin_lock_irqsave(&mux_spin_lock, flags);
pu_pd_orig = omap_readl(cfg->pu_pd_reg);
mask = 1 << cfg->pull_bit;
@@ -100,11 +96,13 @@ omap_cfg_reg(const reg_cfg_t reg_cfg)
pu_pd = pu_pd_orig & ~mask;
}
omap_writel(pu_pd, cfg->pu_pd_reg);
+ spin_unlock_irqrestore(&mux_spin_lock, flags);
}
}
/* Check for an associated pull down register */
if (cfg->pull_reg) {
+ spin_lock_irqsave(&mux_spin_lock, flags);
pull_orig = omap_readl(cfg->pull_reg);
mask = 1 << cfg->pull_bit;
@@ -121,6 +119,7 @@ omap_cfg_reg(const reg_cfg_t reg_cfg)
}
omap_writel(pull, cfg->pull_reg);
+ spin_unlock_irqrestore(&mux_spin_lock, flags);
}
if (warn) {
@@ -149,8 +148,6 @@ omap_cfg_reg(const reg_cfg_t reg_cfg)
}
#endif
- spin_unlock_irqrestore(&mux_spin_lock, flags);
-
#ifdef CONFIG_OMAP_MUX_ERRORS
return warn ? -ETXTBSY : 0;
#else
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