OMAP2+: io: split omap2_init_common_hw()

Split omap2_init_common_hw() into two functions.  The first,
omap2_init_common_infrastructure(), initializes the hwmod code and
data, the OMAP PM code, and the clock code and data.  The second,
omap2_init_common_devices(), handles any other early device
initialization that, for whatever reason, has not been or cannot be
moved to initcalls or early platform devices.

This patch is required for the hwmod postsetup patch, which allows
board files to change the state that hwmods should be placed into at
the conclusion of the hwmod _setup() function.  For example, for a
board whose creators wish to ensure watchdog coverage across the
entire kernel boot process, code to change the watchdog's postsetup
state will be added in the board-*.c file between the
omap2_init_common_infrastructure() and omap2_init_common_devices() function
calls.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>

1 files changed, 12 insertions, 4 deletions

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 5577ab2faad2..77bf0d1baeef 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -331,11 +331,8 @@ static inline void omap_irq_base_init(void)
 #endif
 }
 
-void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
-                                 struct omap_sdrc_params *sdrc_cs1)
+void __init omap2_init_common_infrastructure(void)
 {
-        u8 skip_setup_idle = 0;
-
         pwrdm_init(powerdomains_omap);
         clkdm_init(clockdomains_omap, clkdm_autodeps);
         if (cpu_is_omap242x())
@@ -359,6 +356,17 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
                 omap4xxx_clk_init();
         else
                 pr_err("Could not init clock framework - unknown CPU\n");
+}
+
+/*
+ * XXX Ideally, this function will dwindle into nothingness over time;
+ * almost all device init code should be possible through initcalls
+ * and other generalized mechanisms
+ */
+void __init omap2_init_common_devices(struct omap_sdrc_params *sdrc_cs0,
+                                      struct omap_sdrc_params *sdrc_cs1)
+{
+        u8 skip_setup_idle = 0;
 
         omap_serial_early_init();