[src/trunk]: src/sys/arch Attach Tegra124 DVFS to /cpus/cpu0 now that another...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/4e3bd3470236
branches:  trunk
changeset: 824329:4e3bd3470236
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Fri Jun 02 00:09:56 2017 +0000

description:
Attach Tegra124 DVFS to /cpus/cpu0 now that another driver is claiming the
/cpus node.

diffstat:

 sys/arch/arm/nvidia/files.tegra    |   4 ++--
 sys/arch/arm/nvidia/tegra124_cpu.c |  20 +++++++++++---------
 sys/arch/evbarm/conf/TEGRA         |   4 ++--
 3 files changed, 15 insertions(+), 13 deletions(-)

diffs (108 lines):

diff -r ef9d310de65c -r 4e3bd3470236 sys/arch/arm/nvidia/files.tegra
--- a/sys/arch/arm/nvidia/files.tegra   Fri Jun 02 00:01:00 2017 +0000
+++ b/sys/arch/arm/nvidia/files.tegra   Fri Jun 02 00:09:56 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.tegra,v 1.39 2017/05/30 22:55:26 jmcneill Exp $
+#      $NetBSD: files.tegra,v 1.40 2017/06/02 00:09:56 jmcneill Exp $
 #
 # Configuration info for NVIDIA Tegra ARM Peripherals
 #
@@ -21,7 +21,7 @@
 # Tegra T124 (32-bit K1) support
 file   arch/arm/nvidia/soc_tegra124.c          soc_tegra124
 device tegra124cpu
-attach tegra124cpu at fdt with tegra124_cpu
+attach tegra124cpu at cpu with tegra124_cpu
 file   arch/arm/nvidia/tegra124_cpu.c          tegra124_cpu
 
 # Tegra T210 (X1) support
diff -r ef9d310de65c -r 4e3bd3470236 sys/arch/arm/nvidia/tegra124_cpu.c
--- a/sys/arch/arm/nvidia/tegra124_cpu.c        Fri Jun 02 00:01:00 2017 +0000
+++ b/sys/arch/arm/nvidia/tegra124_cpu.c        Fri Jun 02 00:09:56 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra124_cpu.c,v 1.3 2017/04/29 23:00:42 jmcneill Exp $ */
+/* $NetBSD: tegra124_cpu.c,v 1.4 2017/06/02 00:09:56 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -30,7 +30,7 @@
 #include "opt_multiprocessor.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra124_cpu.c,v 1.3 2017/04/29 23:00:42 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra124_cpu.c,v 1.4 2017/06/02 00:09:56 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -70,7 +70,7 @@
 
 static int     tegra124_cpu_match(device_t, cfdata_t, void *);
 static void    tegra124_cpu_attach(device_t, device_t, void *);
-static void    tegra124_cpu_init_cpufreq(device_t);
+static int     tegra124_cpu_init_cpufreq(device_t);
 
 CFATTACH_DECL_NEW(tegra124_cpu, 0, tegra124_cpu_match, tegra124_cpu_attach,
     NULL, NULL);
@@ -125,7 +125,7 @@
        const char * const compatible[] = { "nvidia,tegra124", NULL };
        struct fdt_attach_args *faa = aux;
 
-       if (OF_finddevice("/cpus") != faa->faa_phandle)
+       if (OF_finddevice("/cpus/cpu@0") != faa->faa_phandle)
                return 0;
 
        return of_match_compatible(OF_finddevice("/"), compatible);
@@ -135,12 +135,12 @@
 tegra124_cpu_attach(device_t parent, device_t self, void *aux)
 {
        aprint_naive("\n");
-       aprint_normal(": CPU complex\n");
+       aprint_normal(": DVFS\n");
 
-       config_defer(self, tegra124_cpu_init_cpufreq);
+       config_finalize_register(self, tegra124_cpu_init_cpufreq);
 }
 
-static void
+static int
 tegra124_cpu_init_cpufreq(device_t dev)
 {
        tegra124_speedo_init();
@@ -153,14 +153,16 @@
        }
        if (tegra124_clk_pllx == NULL) {
                aprint_error_dev(dev, "couldn't find clock pll_x\n");
-               return;
+               return 0;
        }
        if (tegra124_reg_vddcpu == NULL) {
                aprint_error_dev(dev, "couldn't find voltage regulator\n");
-               return;
+               return 0;
        }
 
        tegra_cpufreq_register(&tegra124_cpufreq_func);
+
+       return 0;
 }
 
 static void
diff -r ef9d310de65c -r 4e3bd3470236 sys/arch/evbarm/conf/TEGRA
--- a/sys/arch/evbarm/conf/TEGRA        Fri Jun 02 00:01:00 2017 +0000
+++ b/sys/arch/evbarm/conf/TEGRA        Fri Jun 02 00:09:56 2017 +0000
@@ -1,5 +1,5 @@
 #
-#      $NetBSD: TEGRA,v 1.22 2017/05/29 23:22:00 jmcneill Exp $
+#      $NetBSD: TEGRA,v 1.23 2017/06/02 00:09:56 jmcneill Exp $
 #
 #      NVIDIA Tegra K1 (T124)
 #
@@ -36,7 +36,7 @@
 cpu*           at cpus?
 
 # CPU frequency scaling
-tegra124cpu*   at fdt?
+tegra124cpu*   at cpu?
 
 fclock*                at fdt? pass 4
 fregulator*    at fdt? pass 4