Added HOOK_INIT for driver module inits

This covers modules which need to initialize before task_start(), but
don't particularly care in what order they're initialized.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=if it boots, it works

Change-Id: I69829aac8d1c3c14ee04916a794b84bbf03a09eb

8 files changed, 28 insertions, 9 deletions

diff --git a/chip/lm4/adc.c b/chip/lm4/adc.c
index eb09235351..18f8dbe3a7 100644
--- a/chip/lm4/adc.c
+++ b/chip/lm4/adc.c
@@ -8,6 +8,7 @@
 #include "adc.h"
 #include "console.h"
 #include "gpio.h"
+#include "hooks.h"
 #include "lm4_adc.h"
 #include "registers.h"
 #include "task.h"
@@ -47,6 +48,7 @@ const uint32_t ain_port[24][2] = {
 	{LM4_GPIO_N, (1<<0)},
 };
 
+
 static void configure_gpio(void)
 {
 	int i;
@@ -66,6 +68,7 @@ static void configure_gpio(void)
 	}
 }
 
+
 int lm4_adc_flush_and_read(enum lm4_adc_sequencer seq)
 {
 	/* TODO: right now we have only a single channel so this is
@@ -107,6 +110,7 @@ int lm4_adc_flush_and_read(enum lm4_adc_sequencer seq)
 	return LM4_ADC_SSFIFO(seq);
 }
 
+
 int lm4_adc_configure(enum lm4_adc_sequencer seq,
 		      int ain_id,
 		      int ssctl)
@@ -133,6 +137,7 @@ int lm4_adc_configure(enum lm4_adc_sequencer seq,
 	return EC_SUCCESS;
 }
 
+
 int adc_read_channel(enum adc_channel ch)
 {
 	const struct adc_t *adc = adc_channels + ch;
@@ -181,6 +186,7 @@ static int command_ectemp(int argc, char **argv)
 }
 DECLARE_CONSOLE_COMMAND(ectemp, command_ectemp);
 
+
 static int command_adc(int argc, char **argv)
 {
 	int i;
@@ -197,7 +203,7 @@ DECLARE_CONSOLE_COMMAND(adc, command_adc);
 /*****************************************************************************/
 /* Initialization */
 
-int adc_init(void)
+static int adc_init(void)
 {
 	int i;
 	const struct adc_t *adc;
@@ -231,3 +237,4 @@ int adc_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, adc_init, HOOK_PRIO_DEFAULT);
diff --git a/chip/lm4/gpio.c b/chip/lm4/gpio.c
index a7c4f96163..114e1a37a1 100644
--- a/chip/lm4/gpio.c
+++ b/chip/lm4/gpio.c
@@ -7,6 +7,7 @@
 
 #include "board.h"
 #include "gpio.h"
+#include "hooks.h"
 #include "power_button.h"
 #include "registers.h"
 #include "task.h"
@@ -116,7 +117,7 @@ int gpio_pre_init(void)
 }
 
 
-int gpio_init(void)
+static int gpio_init(void)
 {
 	/* Enable IRQs now that pins are set up */
 	task_enable_irq(LM4_IRQ_GPIOA);
@@ -141,6 +142,7 @@ int gpio_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, gpio_init, HOOK_PRIO_DEFAULT);
 
 
 void gpio_set_alternate_function(int port, int mask, int func)
diff --git a/chip/lm4/i2c.c b/chip/lm4/i2c.c
index c712adf641..8a5a93b3c8 100644
--- a/chip/lm4/i2c.c
+++ b/chip/lm4/i2c.c
@@ -437,7 +437,7 @@ static void configure_gpio(void)
 }
 
 
-int i2c_init(void)
+static int i2c_init(void)
 {
 	volatile uint32_t scratch  __attribute__((unused));
 	int i;
@@ -474,3 +474,4 @@ int i2c_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, i2c_init, HOOK_PRIO_DEFAULT);
diff --git a/chip/lm4/lpc.c b/chip/lm4/lpc.c
index 647ed67e7d..c8b45df798 100644
--- a/chip/lm4/lpc.c
+++ b/chip/lm4/lpc.c
@@ -7,6 +7,7 @@
 
 #include "board.h"
 #include "gpio.h"
+#include "hooks.h"
 #include "host_command.h"
 #include "i8042.h"
 #include "lpc.h"
@@ -105,7 +106,7 @@ static void lpc_generate_sci(void)
 }
 
 
-int lpc_init(void)
+static int lpc_init(void)
 {
 	volatile uint32_t scratch  __attribute__((unused));
 
@@ -200,6 +201,7 @@ int lpc_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, lpc_init, HOOK_PRIO_DEFAULT);
 
 
 uint8_t *lpc_get_host_range(int slot)
diff --git a/chip/lm4/onewire.c b/chip/lm4/onewire.c
index 3cfb7c7401..d505ff5c08 100644
--- a/chip/lm4/onewire.c
+++ b/chip/lm4/onewire.c
@@ -7,8 +7,9 @@
 
 #include "board.h"
 #include "gpio.h"
-#include "timer.h"
+#include "hooks.h"
 #include "registers.h"
+#include "timer.h"
 
 #define ONEWIRE_PIN (1<<2)  /* One-wire pin mask (on GPIO H) */
 
@@ -131,10 +132,11 @@ static void configure_gpio(void)
 }
 
 
-int onewire_init(void)
+static int onewire_init(void)
 {
 	/* Configure GPIOs */
 	configure_gpio();
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, onewire_init, HOOK_PRIO_DEFAULT);
diff --git a/chip/lm4/peci.c b/chip/lm4/peci.c
index 0e7540fa10..8accb1d1d5 100644
--- a/chip/lm4/peci.c
+++ b/chip/lm4/peci.c
@@ -114,7 +114,7 @@ DECLARE_CONSOLE_COMMAND(pecitemp, command_peci_temp);
 /*****************************************************************************/
 /* Initialization */
 
-int peci_init(void)
+static int peci_init(void)
 {
 	volatile uint32_t scratch  __attribute__((unused));
 
@@ -130,3 +130,4 @@ int peci_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, peci_init, HOOK_PRIO_DEFAULT);
diff --git a/chip/lm4/power_button.c b/chip/lm4/power_button.c
index d4752f8311..837c67c214 100644
--- a/chip/lm4/power_button.c
+++ b/chip/lm4/power_button.c
@@ -9,6 +9,7 @@
 #include "console.h"
 #include "eoption.h"
 #include "gpio.h"
+#include "hooks.h"
 #include "keyboard.h"
 #include "keyboard_scan.h"
 #include "lpc.h"
@@ -287,7 +288,7 @@ void power_button_interrupt(enum gpio_signal signal)
 }
 
 
-int power_button_init(void)
+static int power_button_init(void)
 {
 	/* Set up memory-mapped switch positions */
 	memmap_switches = lpc_get_memmap_range() + EC_LPC_MEMMAP_SWITCHES;
@@ -331,6 +332,7 @@ int power_button_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, power_button_init, HOOK_PRIO_DEFAULT);
 
 
 void power_button_task(void)
diff --git a/chip/lm4/pwm.c b/chip/lm4/pwm.c
index 7fc95f0124..0a37ffc5b8 100644
--- a/chip/lm4/pwm.c
+++ b/chip/lm4/pwm.c
@@ -8,6 +8,7 @@
 #include "board.h"
 #include "console.h"
 #include "gpio.h"
+#include "hooks.h"
 #include "pwm.h"
 #include "registers.h"
 #include "uart.h"
@@ -272,7 +273,7 @@ DECLARE_CONSOLE_COMMAND(kblight, command_kblight);
 /*****************************************************************************/
 /* Initialization */
 
-int pwm_init(void)
+static int pwm_init(void)
 {
 	volatile uint32_t scratch  __attribute__((unused));
 
@@ -324,3 +325,4 @@ int pwm_init(void)
 
 	return EC_SUCCESS;
 }
+DECLARE_HOOK(HOOK_INIT, pwm_init, HOOK_PRIO_DEFAULT);