Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-19 02:21:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

OMAP3: PM: Enable IO / IO-CHAIN wakeups for PER

Browse Source 
IO events can also come from GPIO modules, which reside in the PER domain.
It is possible for the PER to enter RET while CORE is still in ON.
If GPIO 2-6 are enabled for IO-pad wakeups, the PER domain will not
wakeup in this case, unless we enable it.

Signed-off-by: Mike Chan <mike@android.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Mike Chan 2010-05-03 16:04:06 -07:00 committed by Kevin Hilman
parent 7a44ad2fce
commit 40742fa82e
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/arm/mach-omap2/pm34xx.c
View File

@ -379,9 +379,16 @@ void omap_sram_idle(void)
if (pwrdm_read_pwrst(neon_pwrdm) == PWRDM_POWER_ON)
pwrdm_set_next_pwrst(neon_pwrdm, mpu_next_state);
/* PER */
/* Enable IO-PAD and IO-CHAIN wakeups */
per_next_state = pwrdm_read_next_pwrst(per_pwrdm);
core_next_state = pwrdm_read_next_pwrst(core_pwrdm);
if (per_next_state < PWRDM_POWER_ON ||
core_next_state < PWRDM_POWER_ON) {
prm_set_mod_reg_bits(OMAP3430_EN_IO, WKUP_MOD, PM_WKEN);
omap3_enable_io_chain();
}
/* PER */
if (per_next_state < PWRDM_POWER_ON) {
omap_uart_prepare_idle(2);
omap2_gpio_prepare_for_retention();
@ -406,10 +413,8 @@ void omap_sram_idle(void)
omap3_core_save_context();
omap3_prcm_save_context();
}
/* Enable IO-PAD and IO-CHAIN wakeups */
prm_set_mod_reg_bits(OMAP3430_EN_IO, WKUP_MOD, PM_WKEN);
omap3_enable_io_chain();
}
omap3_intc_prepare_idle();
/*
@ -471,7 +476,8 @@ void omap_sram_idle(void)
}
/* Disable IO-PAD and IO-CHAIN wakeup */
if (core_next_state < PWRDM_POWER_ON) {
if (per_next_state < PWRDM_POWER_ON ||
core_next_state < PWRDM_POWER_ON) {
prm_clear_mod_reg_bits(OMAP3430_EN_IO, WKUP_MOD, PM_WKEN);
omap3_disable_io_chain();
}