[ARM] omap: create a proper tree of clocks
Traditionally, we've tracked the parent/child relationships between
clk structures by setting the child's parent member to point at the
upstream clock. As a result, when decending the tree, we have had
to scan all clocks to find the children.
Avoid this wasteful scanning by keeping a list of the clock's children.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h
index 1b4dd05..28bc74e 100644
--- a/arch/arm/mach-omap1/clock.h
+++ b/arch/arm/mach-omap1/clock.h
@@ -155,7 +155,6 @@
.name = "ck_dpll1",
.ops = &clkops_null,
.parent = &ck_ref,
- .flags = RATE_PROPAGATES,
};
static struct arm_idlect1_clk ck_dpll1out = {
@@ -163,8 +162,7 @@
.name = "ck_dpll1out",
.ops = &clkops_generic,
.parent = &ck_dpll1,
- .flags = CLOCK_IDLE_CONTROL |
- ENABLE_REG_32BIT | RATE_PROPAGATES,
+ .flags = CLOCK_IDLE_CONTROL | ENABLE_REG_32BIT,
.enable_reg = OMAP1_IO_ADDRESS(ARM_IDLECT2),
.enable_bit = EN_CKOUT_ARM,
.recalc = &followparent_recalc,
@@ -187,7 +185,6 @@
.name = "arm_ck",
.ops = &clkops_null,
.parent = &ck_dpll1,
- .flags = RATE_PROPAGATES,
.rate_offset = CKCTL_ARMDIV_OFFSET,
.recalc = &omap1_ckctl_recalc,
.round_rate = omap1_clk_round_rate_ckctl_arm,
@@ -328,7 +325,7 @@
.name = "tc_ck",
.ops = &clkops_null,
.parent = &ck_dpll1,
- .flags = RATE_PROPAGATES | CLOCK_IDLE_CONTROL,
+ .flags = CLOCK_IDLE_CONTROL,
.rate_offset = CKCTL_TCDIV_OFFSET,
.recalc = &omap1_ckctl_recalc,
.round_rate = omap1_clk_round_rate_ckctl_arm,