[RFC,2/8] OMAP: powerdomain: Infrastructure to put arch specific code

Commit Message

Rajendra Nayak Sept. 23, 2010, 12:34 p.m. UTC

None

Patch

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index b9ea70b..6cb5a39 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -315,7 +315,7 @@  void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
 {
 	u8 skip_setup_idle = 0;
 
-	pwrdm_init(powerdomains_omap);
+	pwrdm_init(powerdomains_omap, NULL);
 	clkdm_init(clockdomains_omap, clkdm_autodeps);
 	if (cpu_is_omap242x())
 		omap2420_hwmod_init();
diff --git a/arch/arm/plat-omap/include/plat/powerdomain.h b/arch/arm/plat-omap/include/plat/powerdomain.h
index 3ea7220..18b722d 100644
--- a/arch/arm/plat-omap/include/plat/powerdomain.h
+++ b/arch/arm/plat-omap/include/plat/powerdomain.h
@@ -117,8 +117,28 @@  struct powerdomain {
 #endif
 };
 
+struct pwrdm_functions {
+	int	(*pwrdm_set_next_pwrst)(struct powerdomain *pwrdm, u8 pwrst);
+	int	(*pwrdm_read_next_pwrst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_read_pwrst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_read_prev_pwrst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_set_logic_retst)(struct powerdomain *pwrdm, u8 pwrst);
+	int	(*pwrdm_set_mem_onst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst);
+	int	(*pwrdm_set_mem_retst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst);
+	int	(*pwrdm_read_logic_pwrst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_read_prev_logic_pwrst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_read_logic_retst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_read_mem_pwrst)(struct powerdomain *pwrdm, u8 bank);
+	int	(*pwrdm_read_prev_mem_pwrst)(struct powerdomain *pwrdm, u8 bank);
+	int	(*pwrdm_read_mem_retst)(struct powerdomain *pwrdm, u8 bank);
+	int	(*pwrdm_clear_all_prev_pwrst)(struct powerdomain *pwrdm);
+	int	(*pwrdm_enable_hdwr_sar)(struct powerdomain *pwrdm);
+	int	(*pwrdm_disable_hdwr_sar)(struct powerdomain *pwrdm);
+	int	(*pwrdm_set_lowpwrstchange)(struct powerdomain *pwrdm);
+	int	(*pwrdm_wait_transition)(struct powerdomain *pwrdm);
+};
 
-void pwrdm_init(struct powerdomain **pwrdm_list);
+void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_functions *custom_funcs);
 
 struct powerdomain *pwrdm_lookup(const char *name);
 
diff --git a/arch/arm/plat-omap/powerdomain.c b/arch/arm/plat-omap/powerdomain.c
index 9204799..f90bfd3 100644
--- a/arch/arm/plat-omap/powerdomain.c
+++ b/arch/arm/plat-omap/powerdomain.c
@@ -80,6 +80,8 @@  static u16 pwrstst_reg_offs;
 /* pwrdm_list contains all registered struct powerdomains */
 static LIST_HEAD(pwrdm_list);
 
+static struct pwrdm_functions *arch_pwrdm;
+
 /* Private functions */
 
 static struct powerdomain *_pwrdm_lookup(const char *name)
@@ -218,7 +220,7 @@  static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
  * registered.  No return value.  XXX pwrdm_list is not really a
  * "list"; it is an array.  Rename appropriately.
  */
-void pwrdm_init(struct powerdomain **pwrdm_list)
+void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_functions * custom_funcs)
 {
 	struct powerdomain **p = NULL;
 
@@ -234,6 +236,13 @@  void pwrdm_init(struct powerdomain **pwrdm_list)
 		return;
 	}
 
+	if (!custom_funcs) {
+		printk(KERN_ERR "No custom pwrdm functions registered\n");
+		BUG();
+	}
+
+	arch_pwrdm = custom_funcs;
+
 	if (pwrdm_list) {
 		for (p = pwrdm_list; *p; p++)
 			_pwrdm_register(*p);
@@ -1074,4 +1083,3 @@  int pwrdm_post_transition(void)
 	pwrdm_for_each(_pwrdm_post_transition_cb, NULL);
 	return 0;
 }
-