Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
arch/arm/mach-omap2/pm34xx.c | 19 -------------------
arch/arm/mach-omap2/serial.c | 40 +++++++++++++++++++++-------------------
2 files changed, 21 insertions(+), 38 deletions(-)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index ff0811a..6fff894 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -340,18 +340,9 @@ void omap_sram_idle(void)
omap3_enable_io_chain();
}
- /* Block console output in case it is on one of the OMAP UARTs */
- if (!is_suspending())
- if (per_next_state < PWRDM_POWER_ON ||
- core_next_state < PWRDM_POWER_ON)
- if (!console_trylock())
- goto console_still_active;
-
/* PER */
if (per_next_state < PWRDM_POWER_ON) {
per_going_off = (per_next_state == PWRDM_POWER_OFF) ? 1 : 0;
- omap_uart_prepare_idle(2);
- omap_uart_prepare_idle(3);
omap2_gpio_prepare_for_idle(per_going_off);
if (per_next_state == PWRDM_POWER_OFF)
omap3_per_save_context();
@@ -359,8 +350,6 @@ void omap_sram_idle(void)
/* CORE */
if (core_next_state < PWRDM_POWER_ON) {
- omap_uart_prepare_idle(0);
- omap_uart_prepare_idle(1);
if (core_next_state == PWRDM_POWER_OFF) {
omap3_core_save_context();
omap3_cm_save_context();
@@ -407,8 +396,6 @@ void omap_sram_idle(void)
omap3_sram_restore_context();
omap2_sms_restore_context();
}
- omap_uart_resume_idle(0);
- omap_uart_resume_idle(1);
if (core_next_state == PWRDM_POWER_OFF)
omap2_prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
OMAP3430_GR_MOD,
@@ -422,14 +409,8 @@ void omap_sram_idle(void)
omap2_gpio_resume_after_idle();
if (per_prev_state == PWRDM_POWER_OFF)
omap3_per_restore_context();
- omap_uart_resume_idle(2);
- omap_uart_resume_idle(3);
}
- if (!is_suspending())
- console_unlock();
-
-console_still_active:
/* Disable IO-PAD and IO-CHAIN wakeup */
if (omap3_has_io_wakeup() &&
(per_next_state < PWRDM_POWER_ON ||
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 1ac361b..e4a5a8c 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -39,6 +39,7 @@
#include <plat/dma.h>
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
+#include <plat/prcm.h>
#include "prm2xxx_3xxx.h"
#include "pm.h"
@@ -280,24 +281,34 @@ static inline void omap_uart_restore_context(struct omap_uart_state *uart) {}
static inline void omap_uart_enable_clocks(struct omap_uart_state *uart)
{
+ int locked;
+
if (uart->clocked)
return;
+ locked = console_trylock();
omap_device_enable(uart->pdev);
uart->clocked = 1;
omap_uart_restore_context(uart);
+ if (locked)
+ console_unlock();
}
#ifdef CONFIG_PM
static inline void omap_uart_disable_clocks(struct omap_uart_state *uart)
{
+ int locked;
+
if (!uart->clocked)
return;
+ locked = console_trylock();
omap_uart_save_context(uart);
uart->clocked = 0;
omap_device_idle(uart->pdev);
+ if (locked)
+ console_unlock();
}
static void omap_uart_enable_wakeup(struct omap_uart_state *uart)
@@ -380,6 +391,7 @@ static void omap_uart_allow_sleep(struct omap_uart_state *uart)
omap_uart_smart_idle_enable(uart, 1);
uart->can_sleep = 1;
del_timer(&uart->timer);
+ omap_uart_disable_clocks(uart);
}
static void omap_uart_idle_timer(unsigned long data)
@@ -391,35 +403,23 @@ static void omap_uart_idle_timer(unsigned long data)
void omap_uart_prepare_idle(int num)
{
- struct omap_uart_state *uart;
-
- list_for_each_entry(uart, &uart_list, node) {
- if (num == uart->num && uart->can_sleep) {
- omap_uart_disable_clocks(uart);
- return;
- }
- }
}
void omap_uart_resume_idle(int num)
{
struct omap_uart_state *uart;
+ u32 wkst;
list_for_each_entry(uart, &uart_list, node) {
if (num == uart->num && uart->can_sleep) {
- omap_uart_enable_clocks(uart);
+ omap_uart_block_sleep(uart);
- /* Check for IO pad wakeup */
- if (cpu_is_omap34xx() && uart->padconf) {
- u16 p = omap_ctrl_readw(uart->padconf);
-
- if (p & OMAP3_PADCONF_WAKEUPEVENT0)
- omap_uart_block_sleep(uart);
+ /* Check for normal UART wakeup (and clear it) */
+ if (uart->wk_st && uart->wk_mask) {
+ wkst = __raw_readl(uart->wk_st) & uart->wk_mask;
+ if (wkst)
+ __raw_writel(wkst, uart->wk_st);
}
-
- /* Check for normal UART wakeup */
- if (__raw_readl(uart->wk_st) & uart->wk_mask)
- omap_uart_block_sleep(uart);
return;
}
}
@@ -550,6 +550,8 @@ static void omap_uart_idle_init(struct omap_uart_state *uart)
ret = request_threaded_irq(uart->irq, NULL, omap_uart_interrupt,
IRQF_SHARED, "serial idle", (void *)uart);
WARN_ON(ret);
+ ret = omap_prcm_register_pad_irq(uart->padconf, uart->irq);
+ WARN_ON(ret);
}
void omap_uart_enable_irqs(int enable)
--
1.7.4.1
Texas Instruments Oy, Tekniikantie 12, 02150 Espoo. Y-tunnus: 0115040-6. Kotipaikka: Helsinki
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