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Commit 3b1e8b21 authored by Rajendra Nayak's avatar Rajendra Nayak Committed by Paul Walmsley
Browse files

OMAP: powerdomain: Infrastructure to put arch specific code 



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: default avatarRajendra Nayak <rnayak@ti.com>
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
Tested-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
Tested-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: default avatarRajendra Nayak <rnayak@ti.com>
parent 74bea6b9

arch/arm/mach-omap2/powerdomain.c

+9 −2
Original line number Diff line number Diff line
@@ -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;

}

arch/arm/mach-omap2/powerdomains_data.c

+1 −1
Original line number Diff line number Diff line
@@ -149,5 +149,5 @@ static struct powerdomain *powerdomains_omap[] __initdata = { 


void pwrdm_fw_init(void)

{

	pwrdm_init(powerdomains_omap);

	pwrdm_init(powerdomains_omap, NULL);

}

arch/arm/plat-omap/include/plat/powerdomain.h

+42 −1
Original line number Diff line number Diff line
@@ -117,9 +117,50 @@ 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_fw_init(void);

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);