OMAP1 clock: convert test in disable_unused() to use ENABLE_ON_INIT

mach-omap1/clock.c:omap1_clk_disable_unused() contains a test that
assumes that the clock structures are available in the file's
namespace.  After a following patch, this will no longer be the case.
So we need to reimplement that test.  It turns out that we already
have a facility in the clock framework to handle this case - the
ENABLE_ON_INIT flag - used on OMAP2/3.  Remove the offending test and
mark the clocks that it was intended to catch as ENABLE_ON_INIT.

Signed-off-by: Paul Walmsley <paul@pwsan.com>

2 files changed, 16 insertions, 12 deletions

diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index e006493fe6e3..26a887ccda7b 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -718,17 +718,6 @@ static void __init omap1_clk_disable_unused(struct clk *clk)
         if ((regval32 & (1 << clk->enable_bit)) == 0)
                 return;
 
-        /* FIXME: This clock seems to be necessary but no-one
-         * has asked for its activation. */
-        if (clk == &tc2_ck              /* FIX: pm.c (SRAM), CCP, Camera */
-            || clk == &ck_dpll1out.clk  /* FIX: SoSSI, SSR */
-            || clk == &arm_gpio_ck      /* FIX: GPIO code for 1510 */
-                ) {
-                printk(KERN_INFO "FIXME: Clock \"%s\" seems unused\n",
-                       clk->name);
-                return;
-        }
-
         printk(KERN_INFO "Disabling unused clock \"%s\"... ", clk->name);
         clk->ops->disable(clk);
         printk(" done\n");
diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h
index 29ffa97dc7f3..70195cad7610 100644
--- a/arch/arm/mach-omap1/clock.h
+++ b/arch/arm/mach-omap1/clock.h
@@ -157,12 +157,17 @@ static struct clk ck_dpll1 = {
         .parent         = &ck_ref,
 };
 
+/*
+ * FIXME: This clock seems to be necessary but no-one has asked for its
+ * activation.  [ FIX: SoSSI, SSR ]
+ */
 static struct arm_idlect1_clk ck_dpll1out = {
         .clk = {
                 .name           = "ck_dpll1out",
                 .ops            = &clkops_generic,
                 .parent         = &ck_dpll1,
-                .flags          = CLOCK_IDLE_CONTROL | ENABLE_REG_32BIT,
+                .flags          = CLOCK_IDLE_CONTROL | ENABLE_REG_32BIT |
+                                  ENABLE_ON_INIT,
                 .enable_reg     = OMAP1_IO_ADDRESS(ARM_IDLECT2),
                 .enable_bit     = EN_CKOUT_ARM,
                 .recalc         = &followparent_recalc,
@@ -207,10 +212,15 @@ static struct arm_idlect1_clk armper_ck = {
         .idlect_shift   = 2,
 };
 
+/*
+ * FIXME: This clock seems to be necessary but no-one has asked for its
+ * activation.  [ GPIO code for 1510 ]
+ */
 static struct clk arm_gpio_ck = {
         .name           = "arm_gpio_ck",
         .ops            = &clkops_generic,
         .parent         = &ck_dpll1,
+        .flags          = ENABLE_ON_INIT,
         .enable_reg     = OMAP1_IO_ADDRESS(ARM_IDLECT2),
         .enable_bit     = EN_GPIOCK,
         .recalc         = &followparent_recalc,
@@ -372,10 +382,15 @@ static struct clk tc1_ck = {
         .recalc         = &followparent_recalc,
 };
 
+/*
+ * FIXME: This clock seems to be necessary but no-one has asked for its
+ * activation.  [ pm.c (SRAM), CCP, Camera ]
+ */
 static struct clk tc2_ck = {
         .name           = "tc2_ck",
         .ops            = &clkops_generic,
         .parent         = &tc_ck.clk,
+        .flags          = ENABLE_ON_INIT,
         .enable_reg     = OMAP1_IO_ADDRESS(ARM_IDLECT3),
         .enable_bit     = EN_TC2_CK,
         .recalc         = &followparent_recalc,