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ARM: OMAP3+: PRM: add common APIs for prm_vp_check/clear_txdone

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PRM driver now only exports a generic API for clearing / checking
VP txdone status.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Tero Kristo 2014-04-04 15:52:01 +03:00
parent 9cb6d36371
commit e9f1ddcdec
9 changed files with 60 additions and 25 deletions
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14
arch/arm/mach-omap2/prm.h
View File

@ -147,6 +147,8 @@ struct prm_ll_data {
u16 offset);
void (*reset_system)(void);
int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
u32 (*vp_check_txdone)(u8 vp_id);
void (*vp_clear_txdone)(u8 vp_id);
};
extern int prm_register(struct prm_ll_data *pld);
@ -164,6 +166,18 @@ void omap_prm_reset_system(void);
void omap_prm_reconfigure_io_chain(void);
int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
/*
* Voltage Processor (VP) identifiers
*/
#define OMAP3_VP_VDD_MPU_ID 0
#define OMAP3_VP_VDD_CORE_ID 1
#define OMAP4_VP_VDD_CORE_ID 0
#define OMAP4_VP_VDD_IVA_ID 1
#define OMAP4_VP_VDD_MPU_ID 2
u32 omap_prm_vp_check_txdone(u8 vp_id);
void omap_prm_vp_clear_txdone(u8 vp_id);
#endif

6
arch/arm/mach-omap2/prm3xxx.c
View File

@ -96,7 +96,7 @@ static struct omap3_vp omap3_vp[] = {
#define MAX_VP_ID ARRAY_SIZE(omap3_vp);
u32 omap3_prm_vp_check_txdone(u8 vp_id)
static u32 omap3_prm_vp_check_txdone(u8 vp_id)
{
struct omap3_vp *vp = &omap3_vp[vp_id];
u32 irqstatus;
@ -106,7 +106,7 @@ u32 omap3_prm_vp_check_txdone(u8 vp_id)
return irqstatus & vp->tranxdone_status;
}
void omap3_prm_vp_clear_txdone(u8 vp_id)
static void omap3_prm_vp_clear_txdone(u8 vp_id)
{
struct omap3_vp *vp = &omap3_vp[vp_id];
@ -665,6 +665,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
.reset_system = &omap3xxx_prm_dpll3_reset,
.clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs,
.vp_check_txdone = &omap3_prm_vp_check_txdone,
.vp_clear_txdone = &omap3_prm_vp_clear_txdone,
};
int __init omap3xxx_prm_init(void)

4
arch/arm/mach-omap2/prm3xxx.h
View File

@ -132,10 +132,6 @@
#ifndef __ASSEMBLER__
/* OMAP3-specific VP functions */
u32 omap3_prm_vp_check_txdone(u8 vp_id);
void omap3_prm_vp_clear_txdone(u8 vp_id);
/*
* OMAP3 access functions for voltage controller (VC) and
* voltage proccessor (VP) in the PRM.

6
arch/arm/mach-omap2/prm44xx.c
View File

@ -138,7 +138,7 @@ static struct omap4_vp omap4_vp[] = {
},
};
u32 omap4_prm_vp_check_txdone(u8 vp_id)
static u32 omap4_prm_vp_check_txdone(u8 vp_id)
{
struct omap4_vp *vp = &omap4_vp[vp_id];
u32 irqstatus;
@ -149,7 +149,7 @@ u32 omap4_prm_vp_check_txdone(u8 vp_id)
return irqstatus & vp->tranxdone_status;
}
void omap4_prm_vp_clear_txdone(u8 vp_id)
static void omap4_prm_vp_clear_txdone(u8 vp_id)
{
struct omap4_vp *vp = &omap4_vp[vp_id];
@ -699,6 +699,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
.deassert_hardreset = omap4_prminst_deassert_hardreset,
.is_hardreset_asserted = omap4_prminst_is_hardreset_asserted,
.reset_system = omap4_prminst_global_warm_sw_reset,
.vp_check_txdone = omap4_prm_vp_check_txdone,
.vp_clear_txdone = omap4_prm_vp_clear_txdone,
};
int __init omap44xx_prm_init(void)

4
arch/arm/mach-omap2/prm44xx_54xx.h
View File

@ -26,10 +26,6 @@
/* Function prototypes */
#ifndef __ASSEMBLER__
/* OMAP4/OMAP5-specific VP functions */
u32 omap4_prm_vp_check_txdone(u8 vp_id);
void omap4_prm_vp_clear_txdone(u8 vp_id);
/*
* OMAP4/OMAP5 access functions for voltage controller (VC) and
* voltage proccessor (VP) in the PRM.

34
arch/arm/mach-omap2/prm_common.c
View File

@ -554,6 +554,40 @@ int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask);
}
/**
* omap_prm_vp_check_txdone - check voltage processor TX done status
*
* Checks if voltage processor transmission has been completed.
* Returns non-zero if a transmission has completed, 0 otherwise.
*/
u32 omap_prm_vp_check_txdone(u8 vp_id)
{
if (!prm_ll_data->vp_check_txdone) {
WARN_ONCE(1, "prm: %s: no mapping function defined\n",
__func__);
return 0;
}
return prm_ll_data->vp_check_txdone(vp_id);
}
/**
* omap_prm_vp_clear_txdone - clears voltage processor TX done status
*
* Clears the status bit for completed voltage processor transmission
* returned by prm_vp_check_txdone.
*/
void omap_prm_vp_clear_txdone(u8 vp_id)
{
if (!prm_ll_data->vp_clear_txdone) {
WARN_ONCE(1, "prm: %s: no mapping function defined\n",
__func__);
return;
}
prm_ll_data->vp_clear_txdone(vp_id);
}
/**
* prm_register - register per-SoC low-level data with the PRM
* @pld: low-level per-SoC OMAP PRM data & function pointers to register

9
arch/arm/mach-omap2/vp.h
View File

@ -21,15 +21,6 @@
struct voltagedomain;
/*
* Voltage Processor (VP) identifiers
*/
#define OMAP3_VP_VDD_MPU_ID 0
#define OMAP3_VP_VDD_CORE_ID 1
#define OMAP4_VP_VDD_CORE_ID 0
#define OMAP4_VP_VDD_IVA_ID 1
#define OMAP4_VP_VDD_MPU_ID 2
/* XXX document */
#define VP_IDLE_TIMEOUT 200
#define VP_TRANXDONE_TIMEOUT 300

4
arch/arm/mach-omap2/vp3xxx_data.c
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@ -28,8 +28,8 @@
#include "prm2xxx_3xxx.h"
static const struct omap_vp_ops omap3_vp_ops = {
.check_txdone = omap3_prm_vp_check_txdone,
.clear_txdone = omap3_prm_vp_clear_txdone,
.check_txdone = omap_prm_vp_check_txdone,
.clear_txdone = omap_prm_vp_clear_txdone,
};
/*

4
arch/arm/mach-omap2/vp44xx_data.c
View File

@ -28,8 +28,8 @@
#include "vp.h"
static const struct omap_vp_ops omap4_vp_ops = {
.check_txdone = omap4_prm_vp_check_txdone,
.clear_txdone = omap4_prm_vp_clear_txdone,
.check_txdone = omap_prm_vp_check_txdone,
.clear_txdone = omap_prm_vp_clear_txdone,
};
/*