From eeb7ba21ab7e84597e4156cb35f85839c20d66a1 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 19 Oct 2012 14:27:34 -0500 Subject: ARM: OMAP2+: Prepare for device-tree PMU support If device-tree is present, then do not create the PMU device from within the OMAP specific PMU code. This is required to allow device-tree to create the PMU device from the PMU device-tree node. PMU is not currently supported for OMAP4430 (due to a dependency on having a cross-trigger interface driver) and so ensure that this indicated on boot with or without device-tree. Signed-off-by: Jon Hunter Acked-by: Tony Lindgren Signed-off-by: Benoit Cousson --- arch/arm/mach-omap2/pmu.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'arch/arm/mach-omap2/pmu.c') diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c index 9debf822687c..9ace8eae7ee8 100644 --- a/arch/arm/mach-omap2/pmu.c +++ b/arch/arm/mach-omap2/pmu.c @@ -11,6 +11,8 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ +#include + #include #include "soc.h" @@ -63,6 +65,15 @@ static int __init omap_init_pmu(void) unsigned oh_num; char **oh_names; + /* XXX Remove this check when the CTI driver is available */ + if (cpu_is_omap443x()) { + pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n"); + return 0; + } + + if (of_have_populated_dt()) + return 0; + /* * To create an ARM-PMU device the following HWMODs * are required for the various OMAP2+ devices. @@ -75,9 +86,6 @@ static int __init omap_init_pmu(void) if (cpu_is_omap443x()) { oh_num = ARRAY_SIZE(omap4430_pmu_oh_names); oh_names = omap4430_pmu_oh_names; - /* XXX Remove the next two lines when CTI driver available */ - pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n"); - return 0; } else if (cpu_is_omap34xx() || cpu_is_omap44xx()) { oh_num = ARRAY_SIZE(omap3_pmu_oh_names); oh_names = omap3_pmu_oh_names; -- cgit v1.2.3