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fc54b9bf15
(stable-branch of Openmoko) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13613 3c298f89-4303-0410-b956-a3cf2f4a3e73
116 lines
3.2 KiB
Diff
116 lines
3.2 KiB
Diff
From bf63ca6b17328413611a9d7594ca2c2f710a1def Mon Sep 17 00:00:00 2001
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From: Andy Green <andy@openmoko.com>
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Date: Wed, 2 Jul 2008 22:38:06 +0100
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Subject: [PATCH] introduce-pcf50633-resume-dependency-list.patch
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Adds resume dependency support to pcf50633
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Signed-off-by: Andy Green <andy@openmoko.com>
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---
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drivers/i2c/chips/pcf50633.c | 26 ++++++++++++++++++++++++--
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include/linux/pcf50633.h | 5 +++++
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2 files changed, 29 insertions(+), 2 deletions(-)
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diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
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index 2ed6dc0..ec6b9f1 100644
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--- a/drivers/i2c/chips/pcf50633.c
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+++ b/drivers/i2c/chips/pcf50633.c
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@@ -53,6 +53,7 @@
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#include <asm/arch/gta02.h>
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#include "pcf50633.h"
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+#include <linux/resume-dependency.h>
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#if 0
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#define DEBUGP(x, args ...) printk("%s: " x, __FUNCTION__, ## args)
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@@ -167,6 +168,9 @@ struct pcf50633_data {
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u_int8_t ena;
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} ldo[__NUM_PCF50633_REGS];
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} standby_regs;
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+
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+ struct resume_dependency resume_dependency;
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+
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#endif
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};
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@@ -1933,6 +1937,8 @@ static int pcf50633_detect(struct i2c_adapter *adapter, int address, int kind)
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pcf50633_global = data;
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+ init_resume_dependency_list(data->resume_dependency);
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+
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populate_sysfs_group(data);
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err = sysfs_create_group(&new_client->dev.kobj, &pcf_attr_group);
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@@ -2142,6 +2148,17 @@ int pcf50633_report_resumers(struct pcf50633_data *pcf, char *buf)
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#ifdef CONFIG_PM
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+/*
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+ * we need to export this because pcf50633_data is kept opaque
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+ */
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+
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+void pcf50633_register_resume_dependency(struct pcf50633_data *pcf,
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+ struct pcf50633_resume_dependency *dep)
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+{
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+ register_resume_dependency(pcf->resume_dependency, dep);
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+}
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+EXPORT_SYMBOL_GPL(pcf50633_register_resume_dep);
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+
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static int pcf50633_suspend(struct device *dev, pm_message_t state)
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{
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@@ -2234,8 +2251,11 @@ static int pcf50633_resume(struct device *dev)
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struct i2c_client *client = to_i2c_client(dev);
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struct pcf50633_data *pcf = i2c_get_clientdata(client);
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int i;
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+ struct list_head *pos, *q;
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+ struct pcf50633_resume_dependency *dep;
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+
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- /* mutex_lock(&pcf->lock); */ /* resume in atomic context */
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+ mutex_lock(&pcf->lock);
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__reg_write(pcf, PCF50633_REG_LEDENA, 0x01);
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@@ -2274,10 +2294,12 @@ static int pcf50633_resume(struct device *dev)
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__reg_write(pcf, reg_out+1, pcf->standby_regs.ldo[i].ena);
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}
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- /* mutex_unlock(&pcf->lock); */ /* resume in atomic context */
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+ mutex_unlock(&pcf->lock);
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pcf50633_irq(pcf->irq, pcf);
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+ callback_all_resume_dependencies(pcf->resume_dependency);
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+
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return 0;
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}
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#else
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diff --git a/include/linux/pcf50633.h b/include/linux/pcf50633.h
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index 837037e..2bef616 100644
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--- a/include/linux/pcf50633.h
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+++ b/include/linux/pcf50633.h
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@@ -2,6 +2,7 @@
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#define _LINUX_PCF50633_H
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#include <linux/pcf506xx.h>
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+#include <linux/resume-dependency.h>
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/* public in-kernel pcf50633 api */
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@@ -124,6 +125,10 @@ pcf50633_battvolt(struct pcf50633_data *pcf);
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extern int
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pcf50633_report_resumers(struct pcf50633_data *pcf, char *buf);
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+extern void
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+pcf50633_register_resume_dependency(struct pcf50633_data *pcf,
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+ struct pcf50633_resume_dependency *dep);
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+
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#define PCF50633_FEAT_EXTON 0x00000001 /* not yet supported */
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#define PCF50633_FEAT_MBC 0x00000002
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--
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1.5.6.5
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