Put infrastructure in place, so arch specific func pointers
can be hooked up to the platform-independent part of the
framework.
This is in preparation of splitting the powerdomain framework into
platform-independent part (for all omaps) and platform-specific
parts.
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
Cc: Benoit Cousson <b-cousson@xxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/io.c | 2 +-
arch/arm/mach-omap2/powerdomain.c | 11 +++++-
arch/arm/plat-omap/include/plat/powerdomain.h | 43 ++++++++++++++++++++++++-
3 files changed, 52 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 40562dd..76c531a 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -316,7 +316,7 @@ 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/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 6527ec3..3aa3eb3 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/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_ops *arch_pwrdm;
+
/* Private functions */
static struct powerdomain *_pwrdm_lookup(const char *name)
@@ -211,6 +213,7 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
/**
* pwrdm_init - set up the powerdomain layer
* @pwrdm_list: array of struct powerdomain pointers to register
+ * @custom_funcs: func pointers for arch specfic implementations
*
* Loop through the array of powerdomains @pwrdm_list, registering all
* that are available on the current CPU. If pwrdm_list is supplied
@@ -218,7 +221,7 @@ 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_ops *custom_funcs)
{
struct powerdomain **p = NULL;
@@ -234,6 +237,11 @@ void pwrdm_init(struct powerdomain **pwrdm_list)
return;
}
+ if (!custom_funcs)
+ WARN(1, "powerdomain: No custom pwrdm functions registered\n");
+ else
+ arch_pwrdm = custom_funcs;
+
if (pwrdm_list) {
for (p = pwrdm_list; *p; p++)
_pwrdm_register(*p);
@@ -1074,4 +1082,3 @@ int pwrdm_post_transition(void)
pwrdm_for_each(_pwrdm_post_transition_cb, NULL);
return 0;
}
-
diff --git a/arch/arm/plat-omap/include/plat/powerdomain.h b/arch/arm/plat-omap/include/plat/powerdomain.h
index 9ca420d..36364f2 100644
--- a/arch/arm/plat-omap/include/plat/powerdomain.h
+++ b/arch/arm/plat-omap/include/plat/powerdomain.h
@@ -117,8 +117,49 @@ struct powerdomain {
#endif
};
+/**
+ * struct pwrdm_ops - Arch specfic function implementations
+ * @pwrdm_set_next_pwrst: Set the target power state for a pd
+ * @pwrdm_read_next_pwrst: Read the target power state set for a pd
+ * @pwrdm_read_pwrst: Read the current power state of a pd
+ * @pwrdm_read_prev_pwrst: Read the prev power state entered by the pd
+ * @pwrdm_set_logic_retst: Set the logic state in RET for a pd
+ * @pwrdm_set_mem_onst: Set the Memory state in ON for a pd
+ * @pwrdm_set_mem_retst: Set the Memory state in RET for a pd
+ * @pwrdm_read_logic_pwrst: Read the current logic state of a pd
+ * @pwrdm_read_prev_logic_pwrst: Read the previous logic state entered by a pd
+ * @pwrdm_read_logic_retst: Read the logic state in RET for a pd
+ * @pwrdm_read_mem_pwrst: Read the current memory state of a pd
+ * @pwrdm_read_prev_mem_pwrst: Read the previous memory state entered by a pd
+ * @pwrdm_read_mem_retst: Read the memory state in RET for a pd
+ * @pwrdm_clear_all_prev_pwrst: Clear all previous power states logged for a pd
+ * @pwrdm_enable_hdwr_sar: Enable Hardware Save-Restore feature for the pd
+ * @pwrdm_disable_hdwr_sar: Disable Hardware Save-Restore feature for a pd
+ * @pwrdm_set_lowpwrstchange: Enable pd transitions from a shallow to deep sleep
+ * @pwrdm_wait_transition: Wait for a pd state transition to complete
+ */
+struct pwrdm_ops {
+ 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_ops *custom_funcs);
struct powerdomain *pwrdm_lookup(const char *name);
--
1.7.0.4
--
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