openwrt-xburst/target/linux/s3c24xx/patches-2.6.24/1184-fix-glamo-mci-resume-dependency-on-pcf50633.patch.patch

From b73e3db4efa3409bd3c559d848e71e1519960d07 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@openmoko.com>
Date: Wed, 2 Jul 2008 22:39:48 +0100
Subject: [PATCH] fix-glamo-mci-resume-dependency-on-pcf50633.patch

Glamo MCI has a resume order dependncy on pcf50633, it has to be able to
power the SD slot via it.
Signed-off-by: Andy Green <andy@openmoko.com>
---
 arch/arm/mach-s3c2440/mach-gta02.c |   25 +++++++++++++++++++++++++
 drivers/mfd/glamo/glamo-core.c     |    8 ++++++++
 drivers/mfd/glamo/glamo-core.h     |    3 +++
 drivers/mfd/glamo/glamo-mci.c      |   11 ++++++++++-
 include/linux/glamofb.h            |    2 ++
 5 files changed, 48 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 69a952a..64d275d 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -92,6 +92,8 @@ static spinlock_t motion_irq_lock;
 struct resume_dependency resume_dep_jbt_pcf;
 /* the dependency of jbt / LCM on glamo resume */
 struct resume_dependency resume_dep_jbt_glamo;
+/* the dependency of Glamo MCI on pcf50633 resume (has to power SD slot) */
+struct resume_dependency resume_dep_glamo_mci_pcf;
 
 
 /* define FIQ IPC struct */
@@ -1317,6 +1319,26 @@ gta02_glamo_mmc_set_power(unsigned char power_mode, unsigned short vdd)
 	}
 }
 
+
+static int gta02_glamo_mci_all_dependencies_resumed(struct platform_device *dev)
+{
+	return resume_dep_glamo_mci_pcf.called_flag;
+}
+
+/* register jbt resume action to be dependent on pcf50633 and glamo resume */
+
+static void gta02_glamo_mci_suspending(struct platform_device *dev)
+{
+	void glamo_mci_resume(void *dev); /* little white lies about types */
+
+	resume_dep_glamo_mci_pcf.callback = glamo_mci_resume;
+	resume_dep_glamo_mci_pcf.context = (void *)dev;
+	pcf50633_register_resume_dependency(pcf50633_global,
+						     &resume_dep_glamo_mci_pcf);
+}
+
+
+
 /* Smedia Glamo 3362 */
 
 static struct glamofb_platform_data gta02_glamo_pdata = {
@@ -1352,6 +1374,9 @@ static struct glamofb_platform_data gta02_glamo_pdata = {
 	/* glamo MMC function platform data */
 	.glamo_set_mci_power = gta02_glamo_mmc_set_power,
 	.glamo_irq_is_wired = glamo_irq_is_wired,
+	.mci_suspending = gta02_glamo_mci_suspending,
+	.mci_all_dependencies_resumed =
+				      gta02_glamo_mci_all_dependencies_resumed,
 };
 
 static struct resource gta02_glamo_resources[] = {
diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c
index 4925e62..608721e 100644
--- a/drivers/mfd/glamo/glamo-core.c
+++ b/drivers/mfd/glamo/glamo-core.c
@@ -270,6 +270,8 @@ struct glamo_mci_pdata glamo_mci_def_pdata = {
 	.glamo_set_mci_power	= NULL, /* filled in from MFD platform data */
 	.ocr_avail		= MMC_VDD_32_33,
 	.glamo_irq_is_wired	= NULL, /* filled in from MFD platform data */
+	.mci_suspending = NULL, /* filled in from MFD platform data */
+	.mci_all_dependencies_resumed = NULL, /* filled in from MFD platform data */
 };
 EXPORT_SYMBOL_GPL(glamo_mci_def_pdata);
 
@@ -1111,6 +1113,10 @@ static int __init glamo_probe(struct platform_device *pdev)
 					glamo->pdata->glamo_set_mci_power;
 	glamo_mci_def_pdata.glamo_irq_is_wired =
 					glamo->pdata->glamo_irq_is_wired;
+	glamo_mci_def_pdata.mci_suspending =
+					glamo->pdata->mci_suspending;
+	glamo_mci_def_pdata.mci_all_dependencies_resumed =
+				glamo->pdata->mci_all_dependencies_resumed;
 
 	glamo_2d_dev.dev.parent = &pdev->dev;
 	mangle_mem_resources(glamo_2d_dev.resource,
@@ -1180,6 +1186,8 @@ static int __init glamo_probe(struct platform_device *pdev)
 		 glamo_pll_rate(glamo, GLAMO_PLL1),
 		 glamo_pll_rate(glamo, GLAMO_PLL2));
 
+	glamo_lcm_reset(1);
+
 	for (irq = IRQ_GLAMO(0); irq <= IRQ_GLAMO(8); irq++) {
 		set_irq_chip(irq, &glamo_irq_chip);
 		set_irq_handler(irq, handle_level_irq);
diff --git a/drivers/mfd/glamo/glamo-core.h b/drivers/mfd/glamo/glamo-core.h
index 1fee059..b1531b3 100644
--- a/drivers/mfd/glamo/glamo-core.h
+++ b/drivers/mfd/glamo/glamo-core.h
@@ -71,6 +71,9 @@ struct glamo_mci_pdata {
 	void		(*glamo_set_mci_power)(unsigned char power_mode,
 				     unsigned short vdd);
 	int		(*glamo_irq_is_wired)(void);
+	void		(*mci_suspending)(struct platform_device *dev);
+	int		(*mci_all_dependencies_resumed)(struct platform_device *dev);
+
 };
 
 
diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c
index 7869325..f264a6c 100644
--- a/drivers/mfd/glamo/glamo-mci.c
+++ b/drivers/mfd/glamo/glamo-mci.c
@@ -817,18 +817,27 @@ static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state)
 	struct glamo_mci_host 	*host = mmc_priv(mmc);
 
 	host->suspending++;
+	if (host->pdata->mci_all_dependencies_resumed)
+		(host->pdata->mci_suspending)(dev);
+
 	return mmc_suspend_host(mmc, state);
 }
 
-static int glamo_mci_resume(struct platform_device *dev)
+int glamo_mci_resume(struct platform_device *dev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(dev);
 	struct glamo_mci_host 	*host = mmc_priv(mmc);
 
+	if (host->pdata->mci_all_dependencies_resumed)
+		if (!(host->pdata->mci_all_dependencies_resumed)(dev))
+			return 0;
+
 	host->suspending--;
 
 	return mmc_resume_host(mmc);
 }
+EXPORT_SYMBOL_GPL(glamo_mci_resume);
+
 
 #else /* CONFIG_PM */
 #define glamo_mci_suspend NULL
diff --git a/include/linux/glamofb.h b/include/linux/glamofb.h
index bb4ed0a..bb1a398 100644
--- a/include/linux/glamofb.h
+++ b/include/linux/glamofb.h
@@ -32,6 +32,8 @@ struct glamofb_platform_data {
 	void		(*glamo_set_mci_power)(unsigned char power_mode,
 				     unsigned short vdd);
 	int		(*glamo_irq_is_wired)(void);
+	void		(*mci_suspending)(struct platform_device *dev);
+	int		(*mci_all_dependencies_resumed)(struct platform_device *dev);
 };
 
 int glamofb_cmd_mode(struct glamofb_handle *gfb, int on);
-- 
1.5.6.5