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authorShawn Guo <shawn.guo@linaro.org>2012-01-13 14:18:49 +0800
committerShawn Guo <shawn.guo@linaro.org>2012-01-20 10:16:39 +0800
commit5e540a5a7fd145ff7b2cdf8779b53349287c64a9 (patch)
treea629dd875618cc73dda572080a3967409c9474e5 /arch/arm/mach-imx
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
downloadop-kernel-dev-5e540a5a7fd145ff7b2cdf8779b53349287c64a9.zip
op-kernel-dev-5e540a5a7fd145ff7b2cdf8779b53349287c64a9.tar.gz
ARM: imx6: add missing twd_clk for imx6q clock
With commit 5def51b (ARM: 7211/1: smp_twd: get the rate from a clock) hitting mainline, if we do not have a twd_clk for lookup, we will see the following error message in boot log. smp_twd: clock not found: -2 Actually we should add this clock regardless of the error message, so that we can: * Avoid the local timer calibrating at boot time * Make the local timer cpufreq aware on imx6q Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r--arch/arm/mach-imx/clock-imx6q.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/clock-imx6q.c b/arch/arm/mach-imx/clock-imx6q.c
index 9273c2a..2d88f8b 100644
--- a/arch/arm/mach-imx/clock-imx6q.c
+++ b/arch/arm/mach-imx/clock-imx6q.c
@@ -814,6 +814,16 @@ DEF_PFD(pll3_pfd_540m, PFD_480, PFD1, &pll3_usb_otg);
DEF_PFD(pll3_pfd_508m, PFD_480, PFD2, &pll3_usb_otg);
DEF_PFD(pll3_pfd_454m, PFD_480, PFD3, &pll3_usb_otg);
+static unsigned long twd_clk_get_rate(struct clk *clk)
+{
+ return clk_get_rate(clk->parent) / 2;
+}
+
+static struct clk twd_clk = {
+ .parent = &arm_clk,
+ .get_rate = twd_clk_get_rate,
+};
+
static unsigned long pll2_200m_get_rate(struct clk *clk)
{
return clk_get_rate(clk->parent) / 2;
@@ -1894,6 +1904,7 @@ static struct clk_lookup lookups[] = {
_REGISTER_CLOCK("20ec000.sdma", NULL, sdma_clk),
_REGISTER_CLOCK("20bc000.wdog", NULL, dummy_clk),
_REGISTER_CLOCK("20c0000.wdog", NULL, dummy_clk),
+ _REGISTER_CLOCK("smp_twd", NULL, twd_clk),
_REGISTER_CLOCK(NULL, "ckih", ckih_clk),
_REGISTER_CLOCK(NULL, "ckil_clk", ckil_clk),
_REGISTER_CLOCK(NULL, "aips_tz1_clk", aips_tz1_clk),
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