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ARM: OMAP2+: PRM: add generic API for clear_mod_irqs 

OMAP2/3 now use generic API for the prm_clear_mod_irqs, the SoC specific
implementation details are provided through prm_ll_data.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Tero Kristo 2014-04-04 12:31:51 +03:00
parent f0caa5270b
commit 9cb6d36371
8 changed files with 47 additions and 28 deletions
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24
arch/arm/mach-omap2/pm24xx.c
View File

@ -75,9 +75,9 @@ static int omap2_enter_full_retention(void)
/* Clear old wake-up events */
/* REVISIT: These write to reserved bits? */
omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
@ -104,18 +104,16 @@ static int omap2_enter_full_retention(void)
clk_enable(osc_ck);
/* clear CORE wake-up events */
omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
/* wakeup domain events - bit 1: GPT1, bit5 GPIO */
omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, 0x4 | 0x1);
/* MPU domain wake events */
omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
0x1);
omap_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET, 0x1);
omap2xxx_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET,
0x20);
omap_prm_clear_mod_irqs(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET, 0x20);
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_ON);
@ -143,9 +141,9 @@ static void omap2_enter_mpu_retention(void)
* it is in retention mode. */
if (omap2_allow_mpu_retention()) {
/* REVISIT: These write to reserved bits? */
omap2xxx_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap2xxx_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap2xxx_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
omap_prm_clear_mod_irqs(CORE_MOD, PM_WKST1, ~0);
omap_prm_clear_mod_irqs(CORE_MOD, OMAP24XX_PM_WKST2, ~0);
omap_prm_clear_mod_irqs(WKUP_MOD, PM_WKST, ~0);
/* Try to enter MPU retention */
pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);

18
arch/arm/mach-omap2/pm34xx.c
View File

@ -137,8 +137,8 @@ static irqreturn_t _prcm_int_handle_io(int irq, void *unused)
{
int c;
c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
OMAP3430_ST_IO_CHAIN_MASK);
c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, OMAP3430_ST_IO_MASK |
OMAP3430_ST_IO_CHAIN_MASK);
return c ? IRQ_HANDLED : IRQ_NONE;
}
@ -152,15 +152,13 @@ static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused)
* these are handled in a separate handler to avoid acking
* IO events before parsing in mux code
*/
c = omap3xxx_prm_clear_mod_irqs(WKUP_MOD, 1,
~(OMAP3430_ST_IO_MASK |
OMAP3430_ST_IO_CHAIN_MASK));
c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
c += omap3xxx_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
c = omap_prm_clear_mod_irqs(WKUP_MOD, 1, ~(OMAP3430_ST_IO_MASK |
OMAP3430_ST_IO_CHAIN_MASK));
c += omap_prm_clear_mod_irqs(CORE_MOD, 1, ~0);
c += omap_prm_clear_mod_irqs(OMAP3430_PER_MOD, 1, ~0);
if (omap_rev() > OMAP3430_REV_ES1_0) {
c += omap3xxx_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
c += omap3xxx_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1,
~0);
c += omap_prm_clear_mod_irqs(CORE_MOD, 3, ~0);
c += omap_prm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, ~0);
}
return c ? IRQ_HANDLED : IRQ_NONE;

2
arch/arm/mach-omap2/prm.h
View File

@ -146,6 +146,7 @@ struct prm_ll_data {
int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod,
u16 offset);
void (*reset_system)(void);
int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask);
};
extern int prm_register(struct prm_ll_data *pld);
@ -161,6 +162,7 @@ extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
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);
#endif

4
arch/arm/mach-omap2/prm2xxx.c
View File

@ -123,13 +123,14 @@ static void omap2xxx_prm_dpll_reset(void)
* Clears wakeup status bits for a given module, so that the device can
* re-enter idle.
*/
void omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
static int omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
{
u32 wkst;
wkst = omap2_prm_read_mod_reg(module, regs);
wkst &= wkst_mask;
omap2_prm_write_mod_reg(wkst, module, regs);
return 0;
}
int omap2xxx_clkdm_sleep(struct clockdomain *clkdm)
@ -216,6 +217,7 @@ static struct prm_ll_data omap2xxx_prm_ll_data = {
.deassert_hardreset = &omap2_prm_deassert_hardreset,
.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
.reset_system = &omap2xxx_prm_dpll_reset,
.clear_mod_irqs = &omap2xxx_prm_clear_mod_irqs,
};
int __init omap2xxx_prm_init(void)

2
arch/arm/mach-omap2/prm2xxx.h
View File

@ -124,8 +124,6 @@
extern int omap2xxx_clkdm_sleep(struct clockdomain *clkdm);
extern int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm);
void omap2xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
extern int __init omap2xxx_prm_init(void);
#endif

3
arch/arm/mach-omap2/prm3xxx.c
View File

@ -226,7 +226,7 @@ static void omap3xxx_prm_restore_irqen(u32 *saved_mask)
* that any peripheral wake-up events occurring while attempting to
* clear the PM_WKST_x are detected and cleared.
*/
int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
static int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
{
u32 wkst, fclk, iclk, clken;
u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
@ -664,6 +664,7 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
.deassert_hardreset = &omap2_prm_deassert_hardreset,
.is_hardreset_asserted = &omap2_prm_is_hardreset_asserted,
.reset_system = &omap3xxx_prm_dpll3_reset,
.clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs,
};
int __init omap3xxx_prm_init(void)

1
arch/arm/mach-omap2/prm3xxx.h
View File

@ -145,7 +145,6 @@ extern void omap3_prm_vcvp_write(u32 val, u8 offset);
extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
extern int __init omap3xxx_prm_init(void);
int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask);
void omap3xxx_prm_iva_idle(void);
void omap3_prm_reset_modem(void);
int omap3xxx_prm_clear_global_cold_reset(void);

21
arch/arm/mach-omap2/prm_common.c
View File

@ -533,6 +533,27 @@ void omap_prm_reset_system(void)
cpu_relax();
}
/**
* omap_prm_clear_mod_irqs - clear wake-up events from PRCM interrupt
* @module: PRM module to clear wakeups from
* @regs: register to clear
* @wkst_mask: wkst bits to clear
*
* Clears any wakeup events for the module and register set defined.
* Uses SoC specific implementation to do the actual wakeup status
* clearing.
*/
int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask)
{
if (!prm_ll_data->clear_mod_irqs) {
WARN_ONCE(1, "prm: %s: no mapping function defined\n",
__func__);
return -EINVAL;
}
return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask);
}
/**
* prm_register - register per-SoC low-level data with the PRM
* @pld: low-level per-SoC OMAP PRM data & function pointers to register