From 5e540a5a7fd145ff7b2cdf8779b53349287c64a9 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 13 Jan 2012 14:18:49 +0800 Subject: [PATCH] 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 --- arch/arm/mach-imx/clock-imx6q.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-imx/clock-imx6q.c b/arch/arm/mach-imx/clock-imx6q.c index 9273c2a24b54..2d88f8b9a454 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),