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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:19:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:19:05 -0700
commit61464c8357c8f6b780e4c44f5c79471799c51ca7 (patch)
tree4509cf075403965528f380f2f825c46908fb7d4e /arch/arm/mach-omap1/mux.c
parent47061eda2584b9e4516d1e3a9713406a3a559ac8 (diff)
parent9cf1c871526cf6bfec2a653e1e068ee72592542c (diff)
downloadop-kernel-dev-61464c8357c8f6b780e4c44f5c79471799c51ca7.zip
op-kernel-dev-61464c8357c8f6b780e4c44f5c79471799c51ca7.tar.gz
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc general cleanups from Olof Johansson: "This is a large branch that contains a handful of different cleanups: - Fixing up the I/O space remapping on PCI on ARM. This is a series from Rob Herring that restructures how all pci devices allocate I/O space, and it's part of the work to allow multiplatform kernels. - A number of cleanup series for OMAP, moving and removing some headers, sparse irq rework and in general preparation for multiplatform. - Final removal of all non-DT boards for Tegra, it is now device-tree-only! - Removal of a stale platform, nxp4008. It's an old mobile chipset that is no longer in use, and was very likely never really used with a mainline kernel. We have not been able to find anyone interested in keeping it around in the kernel. - Removal of the legacy dmaengine driver on tegra + A handful of other things that I haven't described above." Fix up some conflicts with the staging tree (and because nxp4008 was removed) * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits) ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6 ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus ARM: mmp: using for_each_set_bit to simplify the code ARM: tegra: harmony: fix ldo7 regulator-name ARM: OMAP2+: Make omap4-keypad.h local ARM: OMAP2+: Make l4_3xxx.h local ARM: OMAP2+: Make l4_2xxx.h local ARM: OMAP2+: Make l3_3xxx.h local ARM: OMAP2+: Make l3_2xxx.h local ARM: OMAP1: Move irda.h from plat to mach ARM: OMAP2+: Make hdq1w.h local ARM: OMAP2+: Make gpmc-smsc911x.h local ARM: OMAP2+: Make gpmc-smc91x.h local ARM: OMAP1: Move flash.h from plat to mach ARM: OMAP2+: Make debug-devices.h local ARM: OMAP1: Move board-voiceblue.h from plat to mach ARM: OMAP1: Move board-sx1.h from plat to mach ARM: OMAP2+: Make omap-wakeupgen.h local ARM: OMAP2+: Make omap-secure.h local ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local ...
Diffstat (limited to 'arch/arm/mach-omap1/mux.c')
-rw-r--r--arch/arm/mach-omap1/mux.c58
1 files changed, 56 insertions, 2 deletions
diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c
index e9cc52d..667ce50 100644
--- a/arch/arm/mach-omap1/mux.c
+++ b/arch/arm/mach-omap1/mux.c
@@ -29,7 +29,7 @@
#include <mach/hardware.h>
-#include <plat/mux.h>
+#include <mach/mux.h>
#ifdef CONFIG_OMAP_MUX
@@ -451,6 +451,56 @@ static int __init_or_module omap1_cfg_reg(const struct pin_config *cfg)
#endif
}
+static struct omap_mux_cfg *mux_cfg;
+
+int __init omap_mux_register(struct omap_mux_cfg *arch_mux_cfg)
+{
+ if (!arch_mux_cfg || !arch_mux_cfg->pins || arch_mux_cfg->size == 0
+ || !arch_mux_cfg->cfg_reg) {
+ printk(KERN_ERR "Invalid pin table\n");
+ return -EINVAL;
+ }
+
+ mux_cfg = arch_mux_cfg;
+
+ return 0;
+}
+
+/*
+ * Sets the Omap MUX and PULL_DWN registers based on the table
+ */
+int __init_or_module omap_cfg_reg(const unsigned long index)
+{
+ struct pin_config *reg;
+
+ if (!cpu_class_is_omap1()) {
+ printk(KERN_ERR "mux: Broken omap_cfg_reg(%lu) entry\n",
+ index);
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ if (mux_cfg == NULL) {
+ printk(KERN_ERR "Pin mux table not initialized\n");
+ return -ENODEV;
+ }
+
+ if (index >= mux_cfg->size) {
+ printk(KERN_ERR "Invalid pin mux index: %lu (%lu)\n",
+ index, mux_cfg->size);
+ dump_stack();
+ return -ENODEV;
+ }
+
+ reg = &mux_cfg->pins[index];
+
+ if (!mux_cfg->cfg_reg)
+ return -ENODEV;
+
+ return mux_cfg->cfg_reg(reg);
+}
+EXPORT_SYMBOL(omap_cfg_reg);
+
int __init omap1_mux_init(void)
{
if (cpu_is_omap7xx()) {
@@ -468,4 +518,8 @@ int __init omap1_mux_init(void)
return omap_mux_register(&arch_mux_cfg);
}
-#endif
+#else
+#define omap_mux_init() do {} while(0)
+#define omap_cfg_reg(x) do {} while(0)
+#endif /* CONFIG_OMAP_MUX */
+
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