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ARM: OMAP4: clock: Add CPU local timer clock node 

Local timer clock is sourced from the CPU clock and hence changes
along with CPU clock. These per CPU local timers are used as
clock-events, so they need to be reconfigured on CPU frequency
change as part of CPUfreq governor.

Newly introduced clockevents_reconfigure() needs to know the
twd clock-rate. Provide a clock-node to make clk_get_rate() work
for TWD.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: renamed clock node to 'mpu_periphclk' to indicate that this
 is the Cortex-A9 MPCore subsystem clock PERIPHCLK (DDI 0407G); moved
 clock and clkdev entries to match the autogenerated script output]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Santosh Shilimkar 2011-12-16 16:09:12 -08:00 committed by Tony Lindgren
parent bfc141e3a5
commit 30c95692f6
1 changed files with 9 additions and 0 deletions
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9
arch/arm/mach-omap2/clock44xx_data.c
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@ -1206,6 +1206,14 @@ static const struct clksel ocp_abe_iclk_div[] = {
{ .parent = NULL },
};
static struct clk mpu_periphclk = {
.name = "mpu_periphclk",
.parent = &dpll_mpu_ck,
.ops = &clkops_null,
.fixed_div = 2,
.recalc = &omap_fixed_divisor_recalc,
};
static struct clk ocp_abe_iclk = {
.name = "ocp_abe_iclk",
.parent = &aess_fclk,
@ -3189,6 +3197,7 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "l4_div_ck", &l4_div_ck, CK_443X),
CLK(NULL, "lp_clk_div_ck", &lp_clk_div_ck, CK_443X),
CLK(NULL, "l4_wkup_clk_mux_ck", &l4_wkup_clk_mux_ck, CK_443X),
CLK("smp_twd", NULL, &mpu_periphclk, CK_443X),
CLK(NULL, "ocp_abe_iclk", &ocp_abe_iclk, CK_443X),
CLK(NULL, "per_abe_24m_fclk", &per_abe_24m_fclk, CK_443X),
CLK(NULL, "per_abe_nc_fclk", &per_abe_nc_fclk, CK_443X),