* Christoph Fritz <chf.fritz@xxxxxxxxxxxxxx> [140214 06:24]: > Full device tree support for clock control, especially to set frequencies, > is not yet accomplished. Until then, configure the 24Mhz of sys_clkout2 to > feed an USB-Hub here. Hmm would like to see Tero's comments on this, I wonder if we should wait on this to avoid extra churn? Regards, Tony > Signed-off-by: Christoph Fritz <chf.fritz@xxxxxxxxxxxxxx> > --- > arch/arm/mach-omap2/pdata-quirks.c | 37 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 37 insertions(+) > > diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c > index 435a823..e36ac3f 100644 > --- a/arch/arm/mach-omap2/pdata-quirks.c > +++ b/arch/arm/mach-omap2/pdata-quirks.c > @@ -172,6 +172,43 @@ static void __init am3517_evm_legacy_init(void) > > static void __init omap3_dbb056_legacy_init(void) > { > + struct clk *clkout2; > + struct clk *cm96fck; > + > + /* Reparent clkout2 to 96M_FCK */ > + pr_info("%s: Late Reparent clkout2 to 96M_FCK\n", __func__); > + clkout2 = clk_get(NULL, "clkout2_src_ck"); > + if (clkout2 < 0) { > + pr_err("a83x-quirk: couldn't get clkout2_src_ck\n"); > + return; > + } > + cm96fck = clk_get(NULL, "cm_96m_fck"); > + if (cm96fck < 0) { > + pr_err("a83x-quirk: couldn't get cm_96m_fck\n"); > + return; > + } > + if (clk_set_parent(clkout2, cm96fck) < 0) { > + pr_err("a83x-quirk: couldn't reparent clkout2_src_ck\n"); > + return; > + } > + > + /* Set clkout2 to 24MHz for internal usb hub*/ > + pr_info("%s: Set clkout2 to 24MHz for internal usb hub\n", __func__); > + clkout2 = clk_get(NULL, "sys_clkout2"); > + if (clkout2 < 0) { > + pr_err("%s: couldn't get sys_clkout2\n", __func__); > + return; > + } > + if (clk_set_rate(clkout2, 24000000) < 0) { > + pr_err("%s: couldn't set sys_clkout2 rate\n", __func__); > + return; > + } > + if (clk_prepare_enable(clkout2) < 0) { > + pr_err("%s: couldn't enable sys_clkout2\n", __func__); > + return; > + } > + > + /* Initialize display */ > omap3_dbb056_display_init_of(); > } > #endif /* CONFIG_ARCH_OMAP3 */ > -- > 1.7.10.4 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html