From: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
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@xxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
Cc: Kevin Hilman <khilman@xxxxxx>
[paul@xxxxxxxxx: 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@xxxxxxxxx>
---
This version 3 has been updated by Santosh to use "smp_twd" as the dev_id
and a NULL con_id, to match Linus Walleij's code.
arch/arm/mach-omap2/clock44xx_data.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 0798a80..730097e 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -1206,6 +1206,14 @@ static struct clk l4_wkup_clk_mux_ck = {
.recalc = &omap2_clksel_recalc,
};
+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),
--
1.7.4.1
--
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