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authorIngo Molnar <mingo@kernel.org>2017-03-01 09:02:26 +0100
committerIngo Molnar <mingo@kernel.org>2017-03-01 09:02:26 +0100
commit0871d5a66da5c41151e0896a90298b163e42f2e0 (patch)
tree1ba71fab9016cb28bb9d18ffd62b6b744f2f761c /arch/arm/mach-omap2/omap_hwmod.c
parente22af0be2cf654bb225f19750c6b9aab1627dc9e (diff)
parent2d6be4abf514fc26c83d239c7f31da1f95e4a31d (diff)
Merge branch 'linus' into WIP.x86/boot, to fix up conflicts and to pick up updates
Conflicts: arch/x86/xen/setup.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index e8b988714a09..0da4f2ea76c4 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -3249,6 +3249,36 @@ int __init omap_hwmod_setup_one(const char *oh_name)
}
/**
+ * omap_hwmod_setup_earlycon_flags - set up flags for early console
+ *
+ * Enable DEBUG_OMAPUART_FLAGS for uart hwmod that is being used as
+ * early concole so that hwmod core doesn't reset and keep it in idle
+ * that specific uart.
+ */
+#ifdef CONFIG_SERIAL_EARLYCON
+static void __init omap_hwmod_setup_earlycon_flags(void)
+{
+ struct device_node *np;
+ struct omap_hwmod *oh;
+ const char *uart;
+
+ np = of_find_node_by_path("/chosen");
+ if (np) {
+ uart = of_get_property(np, "stdout-path", NULL);
+ if (uart) {
+ np = of_find_node_by_path(uart);
+ if (np) {
+ uart = of_get_property(np, "ti,hwmods", NULL);
+ oh = omap_hwmod_lookup(uart);
+ if (oh)
+ oh->flags |= DEBUG_OMAPUART_FLAGS;
+ }
+ }
+ }
+}
+#endif
+
+/**
* omap_hwmod_setup_all - set up all registered IP blocks
*
* Initialize and set up all IP blocks registered with the hwmod code.
@@ -3261,6 +3291,9 @@ static int __init omap_hwmod_setup_all(void)
_ensure_mpu_hwmod_is_setup(NULL);
omap_hwmod_for_each(_init, NULL);
+#ifdef CONFIG_SERIAL_EARLYCON
+ omap_hwmod_setup_earlycon_flags();
+#endif
omap_hwmod_for_each(_setup, NULL);
return 0;