From: Tarun Kanti DebBarma <tarun.kanti@ti.com>
To: linux-omap@vger.kernel.org
Cc: khilman@ti.com, santosh.shilimkar@ti.com, tony@atomide.com,
linux-arm-kernel@lists.infradead.org,
Tarun Kanti DebBarma <tarun.kanti@ti.com>
Subject: [PATCH v14 REPOST 11/12] OMAP: dmtimer: add context save/restore routines
Date: Fri, 15 Jul 2011 17:35:00 +0530 [thread overview]
Message-ID: <1310731501-13078-12-git-send-email-tarun.kanti@ti.com> (raw)
In-Reply-To: <1310731501-13078-1-git-send-email-tarun.kanti@ti.com>
Define context register structure and make it member of struct omap_dm_timer.
Also define two routines to save and restore dmtimer context to be used
subsequently.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
---
arch/arm/plat-omap/dmtimer.c | 48 +++++++++++++++++++++++++++++
arch/arm/plat-omap/include/plat/dmtimer.h | 24 ++++++++++++++
2 files changed, 72 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 8c8cb00..cdef48b 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -87,6 +87,54 @@ static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg,
timer->func_offset);
}
+static void omap_timer_save_context(struct omap_dm_timer *timer)
+{
+ timer->context.tiocp_cfg =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_OCP_CFG_REG);
+ timer->context.tistat =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_SYS_STAT_REG);
+ timer->context.tisr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_STAT_REG);
+ timer->context.tier =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_INT_EN_REG);
+ timer->context.twer =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_WAKEUP_EN_REG);
+ timer->context.tclr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
+ timer->context.tcrr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_COUNTER_REG);
+ timer->context.tldr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_LOAD_REG);
+ timer->context.tmar =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_MATCH_REG);
+ timer->context.tsicr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_IF_CTRL_REG);
+}
+
+static void omap_timer_restore_context(struct omap_dm_timer *timer)
+{
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG,
+ timer->context.tiocp_cfg);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_SYS_STAT_REG,
+ timer->context.tistat);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG,
+ timer->context.tisr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG,
+ timer->context.tier);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG,
+ timer->context.twer);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG,
+ timer->context.tclr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG,
+ timer->context.tcrr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG,
+ timer->context.tldr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG,
+ timer->context.tmar);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG,
+ timer->context.tsicr);
+}
+
static void omap_dm_timer_wait_for_reset(struct omap_dm_timer *timer)
{
int c;
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index 6e34094..9a2d7e3 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -234,6 +234,29 @@ int omap_dm_timers_active(void);
#define MAX_WRITE_PEND_WAIT 10000 /* 10ms timeout delay */
+struct timer_regs {
+ u32 tidr;
+ u32 tiocp_cfg;
+ u32 tistat;
+ u32 tisr;
+ u32 tier;
+ u32 twer;
+ u32 tclr;
+ u32 tcrr;
+ u32 tldr;
+ u32 ttrg;
+ u32 twps;
+ u32 tmar;
+ u32 tcar1;
+ u32 tsicr;
+ u32 tcar2;
+ u32 tpir;
+ u32 tnir;
+ u32 tcvr;
+ u32 tocr;
+ u32 towr;
+};
+
struct omap_dm_timer {
unsigned long phys_base;
int id;
@@ -245,6 +268,7 @@ struct omap_dm_timer {
unsigned posted:1;
u8 func_offset;
u8 intr_offset;
+ struct timer_regs context;
struct platform_device *pdev;
struct list_head node;
};
--
1.6.0.4
WARNING: multiple messages have this Message-ID (diff)
From: tarun.kanti@ti.com (Tarun Kanti DebBarma)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v14 REPOST 11/12] OMAP: dmtimer: add context save/restore routines
Date: Fri, 15 Jul 2011 17:35:00 +0530 [thread overview]
Message-ID: <1310731501-13078-12-git-send-email-tarun.kanti@ti.com> (raw)
In-Reply-To: <1310731501-13078-1-git-send-email-tarun.kanti@ti.com>
Define context register structure and make it member of struct omap_dm_timer.
Also define two routines to save and restore dmtimer context to be used
subsequently.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
---
arch/arm/plat-omap/dmtimer.c | 48 +++++++++++++++++++++++++++++
arch/arm/plat-omap/include/plat/dmtimer.h | 24 ++++++++++++++
2 files changed, 72 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 8c8cb00..cdef48b 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -87,6 +87,54 @@ static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg,
timer->func_offset);
}
+static void omap_timer_save_context(struct omap_dm_timer *timer)
+{
+ timer->context.tiocp_cfg =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_OCP_CFG_REG);
+ timer->context.tistat =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_SYS_STAT_REG);
+ timer->context.tisr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_STAT_REG);
+ timer->context.tier =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_INT_EN_REG);
+ timer->context.twer =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_WAKEUP_EN_REG);
+ timer->context.tclr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
+ timer->context.tcrr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_COUNTER_REG);
+ timer->context.tldr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_LOAD_REG);
+ timer->context.tmar =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_MATCH_REG);
+ timer->context.tsicr =
+ omap_dm_timer_read_reg(timer, OMAP_TIMER_IF_CTRL_REG);
+}
+
+static void omap_timer_restore_context(struct omap_dm_timer *timer)
+{
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG,
+ timer->context.tiocp_cfg);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_SYS_STAT_REG,
+ timer->context.tistat);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG,
+ timer->context.tisr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG,
+ timer->context.tier);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG,
+ timer->context.twer);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG,
+ timer->context.tclr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG,
+ timer->context.tcrr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG,
+ timer->context.tldr);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG,
+ timer->context.tmar);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG,
+ timer->context.tsicr);
+}
+
static void omap_dm_timer_wait_for_reset(struct omap_dm_timer *timer)
{
int c;
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index 6e34094..9a2d7e3 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -234,6 +234,29 @@ int omap_dm_timers_active(void);
#define MAX_WRITE_PEND_WAIT 10000 /* 10ms timeout delay */
+struct timer_regs {
+ u32 tidr;
+ u32 tiocp_cfg;
+ u32 tistat;
+ u32 tisr;
+ u32 tier;
+ u32 twer;
+ u32 tclr;
+ u32 tcrr;
+ u32 tldr;
+ u32 ttrg;
+ u32 twps;
+ u32 tmar;
+ u32 tcar1;
+ u32 tsicr;
+ u32 tcar2;
+ u32 tpir;
+ u32 tnir;
+ u32 tcvr;
+ u32 tocr;
+ u32 towr;
+};
+
struct omap_dm_timer {
unsigned long phys_base;
int id;
@@ -245,6 +268,7 @@ struct omap_dm_timer {
unsigned posted:1;
u8 func_offset;
u8 intr_offset;
+ struct timer_regs context;
struct platform_device *pdev;
struct list_head node;
};
--
1.6.0.4
next prev parent reply other threads:[~2011-07-15 12:06 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-15 12:04 [PATCH v14 REPOST 00/12] dmtimer adaptation to platform_driver Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-07-15 12:04 ` [PATCH v14 REPOST 01/12] OMAP2+: dmtimer: add device names to flck nodes Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 14:15 ` Santosh
2011-08-26 14:15 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 02/12] OMAP4: hwmod data: add dmtimer version information Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 15:21 ` Santosh
2011-08-26 15:21 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 03/12] OMAP1: dmtimer: conversion to platform devices Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 14:26 ` Santosh
2011-08-26 14:26 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 04/12] OMAP2+: dmtimer: convert " Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 14:33 ` Santosh
2011-08-26 14:33 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 05/12] OMAP: dmtimer: platform driver Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 14:34 ` Santosh
2011-08-26 14:34 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 06/12] OMAP: dmtimer: switch-over to platform device driver Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 15:20 ` Santosh
2011-08-26 15:20 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 07/12] OMAP: dmtimer: pm_runtime support Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 15:27 ` Santosh
2011-08-26 15:27 ` Santosh
2011-08-26 16:23 ` Kevin Hilman
2011-08-26 16:23 ` Kevin Hilman
2011-08-26 16:34 ` Santosh
2011-08-26 16:34 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 08/12] OMAP: dmtimer: add timeout to low-level routines Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 15:30 ` Santosh
2011-08-26 15:30 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 09/12] OMAP: dmtimer: use mutex instead of spinlock Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 15:34 ` Santosh
2011-08-26 15:34 ` Santosh
2011-08-26 16:09 ` Santosh
2011-08-26 16:09 ` Santosh
2011-07-15 12:04 ` [PATCH v14 REPOST 10/12] OMAP: dmtimer: mark clocksource and clockevent timers reserved Tarun Kanti DebBarma
2011-07-15 12:04 ` Tarun Kanti DebBarma
2011-08-26 15:44 ` Santosh
2011-08-26 15:44 ` Santosh
2011-07-15 12:05 ` Tarun Kanti DebBarma [this message]
2011-07-15 12:05 ` [PATCH v14 REPOST 11/12] OMAP: dmtimer: add context save/restore routines Tarun Kanti DebBarma
2011-08-26 15:46 ` Santosh
2011-08-26 15:46 ` Santosh
2011-07-15 12:05 ` [PATCH v14 REPOST 12/12] OMAP: dmtimer: Off mode support Tarun Kanti DebBarma
2011-07-15 12:05 ` Tarun Kanti DebBarma
2011-08-26 16:04 ` Santosh
2011-08-26 16:04 ` Santosh
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