OMAP2 clock: drop DELAYED_APP clock flag

All of the clocks that are marked with DELAYED_APP are changed as part
of the virt_prcm_set OPP virtual clock.  On 24xx, these clocks all
need to be changed as part of a group to keep the clock tree
functional - hence the need for the VALID_CONFIG bit, which is not
present on later OMAPs.  These clocks should not be rate-changed
independently.  So prevent these clocks from being changed
independently by dropping their .round_rate and .set_rate function
pointers.  It then turns out that the DELAYED_APP clock flag is no
longer useful, so drop it and the associated code and renumber the
clock flags.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>

1 files changed, 1 insertions, 26 deletions

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 82b17ef17db..426d76f564e 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -2,7 +2,7 @@
  *  linux/arch/arm/mach-omap2/clock.c
  *
  *  Copyright (C) 2005-2008 Texas Instruments, Inc.
- *  Copyright (C) 2004-2008 Nokia Corporation
+ *  Copyright (C) 2004-2010 Nokia Corporation
  *
  *  Contacts:
  *  Richard Woodruff <r-woodruff2@ti.com>
@@ -14,12 +14,9 @@
  */
 #undef DEBUG
 
-#include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/device.h>
 #include <linux/list.h>
 #include <linux/errno.h>
-#include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/bitops.h>
@@ -89,28 +86,6 @@ static void _omap2_clk_disable(struct clk *clk)
 /* Public functions */
 
 /**
- * omap2xxx_clk_commit - commit clock parent/rate changes in hardware
- * @clk: struct clk *
- *
- * If @clk has the DELAYED_APP flag set, meaning that parent/rate changes
- * don't take effect until the VALID_CONFIG bit is written, write the
- * VALID_CONFIG bit and wait for the write to complete.  No return value.
- */
-void omap2xxx_clk_commit(struct clk *clk)
-{
-	if (!cpu_is_omap24xx())
-		return;
-
-	if (!(clk->flags & DELAYED_APP))
-		return;
-
-	prm_write_mod_reg(OMAP24XX_VALID_CONFIG, OMAP24XX_GR_MOD,
-		OMAP2_PRCM_CLKCFG_CTRL_OFFSET);
-	/* OCP barrier */
-	prm_read_mod_reg(OMAP24XX_GR_MOD, OMAP2_PRCM_CLKCFG_CTRL_OFFSET);
-}
-
-/**
  * omap2_init_clk_clkdm - look up a clockdomain name, store pointer in clk
  * @clk: OMAP clock struct ptr to use
  *