[ARM] 2887/1: OMAP 2/4: Update files common to omap1 and omap2, take 2

Patch from Tony Lindgren

This patch syncs the mainline kernel with linux-omap tree.
The highlights of the patch are:
- Clock updates by Tuukka Tikkanen, Juha Yrjola,
  Daniel Petrini and Tony Lindgren
- DMA fixes by Imre Deak, Juha Yrjola and Daniel Petrini
- Add support to dual-mode hardware timers by Lauri Leukkunen
- GPIO support for 24xx by Paul Mundt
- GPIO wake-up support by Tony Lindgren
- Better GPIO interrupt handler to not lose interrupts by
  Ralph Walden and Ladislav Michl
- Power Management updates by Tuukka Tikkanen
- Make Power Management code use new SRAM functions by
  Tony Lindgren

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-omap/mux.c

@@ -48,6 +48,9 @@ omap_cfg_reg(const reg_cfg_t reg_cfg)
 		pull_orig = 0, pull = 0;
 	unsigned int mask, warn = 0;
 
+	if (cpu_is_omap7xx())
+		return 0;
+
 	if (reg_cfg > ARRAY_SIZE(reg_cfg_table)) {
 		printk(KERN_ERR "MUX: reg_cfg %d\n", reg_cfg);
 		return -EINVAL;