From: Lee Jones <lee.jones@linaro.org>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: arnd@arndb.de, linus.walleij@stericsson.com,
sameo@linux.intel.com, Lee Jones <lee.jones@linaro.org>
Subject: [PATCH 01/26] mfd: ab8500-sysctrl: Provide a platform specific pm_power_off() call-back
Date: Tue, 15 Jan 2013 12:55:41 +0000 [thread overview]
Message-ID: <1358254566-12419-2-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1358254566-12419-1-git-send-email-lee.jones@linaro.org>
The kernel allows us to specify a function call-back which will be
invoked when a system power-off request has been received. Here we
provide one which is to be used when shutting down AB8500 based
platforms.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/mfd/ab8500-sysctrl.c | 22 ++++++++++++++++++++++
include/linux/mfd/abx500/ab8500.h | 2 ++
2 files changed, 24 insertions(+)
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index c28d4eb..799fb5e 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -7,12 +7,29 @@
#include <linux/err.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/signal.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-sysctrl.h>
static struct device *sysctrl_dev;
+void ab8500_power_off(void)
+{
+ sigset_t old;
+ sigset_t all;
+
+ sigfillset(&all);
+
+ if (!sigprocmask(SIG_BLOCK, &all, &old)) {
+ (void)ab8500_sysctrl_set(AB8500_STW4500CTRL1,
+ AB8500_STW4500CTRL1_SWOFF |
+ AB8500_STW4500CTRL1_SWRESET4500N);
+ (void)sigprocmask(SIG_SETMASK, &old, NULL);
+ }
+}
+
static inline bool valid_bank(u8 bank)
{
return ((bank == AB8500_SYS_CTRL1_BLOCK) ||
@@ -51,7 +68,12 @@ int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value)
static int __devinit ab8500_sysctrl_probe(struct platform_device *pdev)
{
+ struct ab8500_platform_data *plat;
+
sysctrl_dev = &pdev->dev;
+ plat = dev_get_platdata(pdev->dev.parent);
+ if (plat->pm_power_off)
+ pm_power_off = ab8500_power_off;
return 0;
}
diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h
index 1491044..96840c4 100644
--- a/include/linux/mfd/abx500/ab8500.h
+++ b/include/linux/mfd/abx500/ab8500.h
@@ -274,6 +274,7 @@ struct ab8500_codec_platform_data;
/**
* struct ab8500_platform_data - AB8500 platform data
* @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used
+ * @pm_power_off: Should machine pm power off hook be registered or not
* @init: board-specific initialization after detection of ab8500
* @num_regulator_reg_init: number of regulator init registers
* @regulator_reg_init: regulator init registers
@@ -282,6 +283,7 @@ struct ab8500_codec_platform_data;
*/
struct ab8500_platform_data {
int irq_base;
+ bool pm_power_off;
void (*init) (struct ab8500 *);
int num_regulator_reg_init;
struct ab8500_regulator_reg_init *regulator_reg_init;
--
1.7.9.5
next prev parent reply other threads:[~2013-01-15 12:56 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-15 12:55 [PATCH 00/26] AB8500 MFD overhaul Lee Jones
2013-01-15 12:55 ` Lee Jones [this message]
2013-01-15 12:55 ` [PATCH 02/26] mfd: ab8500-sysctrl: If a charger is present, reboot instead Lee Jones
2013-01-27 23:52 ` Samuel Ortiz
2013-01-28 8:44 ` Lee Jones
2013-01-15 12:55 ` [PATCH 03/26] mfd: ab8500-sysctrl: Only reboot into charging mode if battery type is known Lee Jones
2013-01-15 12:55 ` [PATCH 04/26] mfd: ab8500-sysctrl.c: Provide charging as reset reason Lee Jones
2013-01-15 12:55 ` [PATCH 05/26] mfd: ab8500-gpadc: Change to mdelay for greater resolution Lee Jones
2013-01-27 23:52 ` Samuel Ortiz
2013-01-28 8:43 ` Lee Jones
2013-01-15 12:55 ` [PATCH 06/26] mfd: ab8500-sysctrl: Provide configuration for SysClkReqRfClkBuf registers Lee Jones
2013-01-27 23:52 ` Samuel Ortiz
2013-01-28 8:38 ` Lee Jones
2013-02-03 17:02 ` Samuel Ortiz
2013-01-15 12:55 ` [PATCH 07/26] mfd: ab8500-sysctrl: export read/write symbols Lee Jones
2013-01-15 12:55 ` [PATCH 08/26] mfd: abx500-core: Provide an API to dump all ABx500 registers Lee Jones
2013-01-15 12:55 ` [PATCH 09/26] mfd: ab8500-debugfs: Provide a means for a user subscribe to IRQs Lee Jones
2013-01-27 23:52 ` Samuel Ortiz
2013-01-28 8:25 ` Lee Jones
2013-01-28 10:22 ` Lee Jones
2013-01-28 10:49 ` Samuel Ortiz
2013-01-28 11:34 ` Lee Jones
2013-02-03 17:01 ` Samuel Ortiz
2013-02-04 9:27 ` Lee Jones
2013-01-15 12:55 ` [PATCH 10/26] mfd: ab8500-debugfs: Wake-up device on debugfs IRQ Lee Jones
2013-01-27 23:53 ` Samuel Ortiz
2013-01-28 8:49 ` Lee Jones
2013-01-15 12:55 ` [PATCH 11/26] mfd: ab8500-debugfs: Keep count of IRQs in debugfs Lee Jones
2013-01-15 12:55 ` [PATCH 12/26] mfd: ab8500-debugfs: Use NULL to initialise remaining NULL pointer Lee Jones
2013-01-15 13:06 ` Mark Brown
2013-01-15 13:49 ` Lee Jones
2013-01-15 12:55 ` [PATCH 13/26] mfd: ab8500-debugfs: Formated access AB8500 registers from debugfs entry Lee Jones
2013-01-27 23:53 ` Samuel Ortiz
2013-01-28 8:47 ` Lee Jones
2013-01-15 12:55 ` [PATCH 14/26] mfd: ab8500-debugfs: Fix introduced compiler time warnings Lee Jones
2013-01-27 23:53 ` Samuel Ortiz
2013-01-28 8:45 ` Lee Jones
2013-01-15 12:55 ` [PATCH 15/26] mfd: ab8500-debugfs: Export all AB8500 ADCs as debugfs nodes Lee Jones
2013-01-15 12:55 ` [PATCH 16/26] mfd: ab8500-debugfs: Set the USB charging current to 300mA for ABV3 Lee Jones
2013-01-15 12:55 ` [PATCH 17/26] mfd: ab8500-debugfs: add debugfs node to read all registers Lee Jones
2013-01-15 12:55 ` [PATCH 18/26] mfd: ab8500-core: Allow the possibility to dump all AB8500 registers Lee Jones
2013-01-15 12:55 ` [PATCH 19/26] mfd: ab8500-debugfs: Allow number of IRQs to be provided more dynamically Lee Jones
2013-01-15 12:56 ` [PATCH 20/26] mfd ab8500-gpadc: Introduce new AB version detection Lee Jones
2013-01-15 12:56 ` [PATCH 21/26] mfd: ab8500-debugfs: Add interrupt debug Lee Jones
2013-01-15 12:56 ` [PATCH 22/26] mfd: ab8500-gpadc: Add runtime pm support Lee Jones
2013-01-15 12:56 ` [PATCH 23/26] mfd: ab8500-pwm: Enable support for AB8505 PWMLED blink Lee Jones
2013-01-27 23:53 ` Samuel Ortiz
2013-01-28 8:13 ` Lee Jones
2013-01-15 12:56 ` [PATCH 24/26] mfd: ab8500-debugfs: sizeof() mismatch bugfix Lee Jones
2013-01-15 12:56 ` [PATCH 25/26] mfd: ab8500-gpadc: Reduce conversion timeout Lee Jones
2013-01-27 23:53 ` Samuel Ortiz
2013-01-28 8:45 ` Lee Jones
2013-01-15 12:56 ` [PATCH 26/26] mfd: ab8500-gpadc: Use new ab8500_gpadc_get() with name parameter Lee Jones
2013-01-27 23:54 ` Samuel Ortiz
2013-01-28 8:11 ` Lee Jones
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