add support for target 3c24xx (more known as Openmoko GTA02 "Freerunner") and merge it with the openmoko-target and the work Michael Buesch <mb> did

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13609 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 230 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches/0166-fix-pcf50633-use-i2c-bulk-autoincrement.patch.patch b/target/linux/s3c24xx/patches/0166-fix-pcf50633-use-i2c-bulk-autoincrement.patch.patch
new file mode 100755
index 0000000000..9f31cfc4d5
--- /dev/null
+++ b/target/linux/s3c24xx/patches/0166-fix-pcf50633-use-i2c-bulk-autoincrement.patch.patch
@@ -0,0 +1,230 @@
+From cc770a67d483a63e98be55c15f08d97ed5599230 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@openmoko.com>
+Date: Fri, 25 Jul 2008 23:06:12 +0100
+Subject: [PATCH] fix-pcf50633-use-i2c-bulk-autoincrement.patch
+
+Simplify and speed up bulk sequential I2C actions in pcf50633
+the time savings are pretty considerable and so is the simplification
+
+Signed-off-by: Andy Green <andy@openmoko.com>
+---
+ drivers/i2c/chips/pcf50633.c |  125 +++++++++++++++++++++++++-----------------
+ 1 files changed, 75 insertions(+), 50 deletions(-)
+
+diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
+index 0406767..645cbbb 100644
+--- a/drivers/i2c/chips/pcf50633.c
++++ b/drivers/i2c/chips/pcf50633.c
+@@ -156,14 +156,14 @@ struct pcf50633_data {
+ 
+ #ifdef CONFIG_PM
+ 	struct {
+-		u_int8_t int1m, int2m, int3m, int4m, int5m;
+ 		u_int8_t ooctim2;
+-		u_int8_t autoout, autoena, automxc;
+-		u_int8_t down1out, down1mxc;
+-		u_int8_t down2out, down2ena;
+-		u_int8_t memldoout, memldoena;
+-		u_int8_t ledout, ledena, leddim;
+-		u_int8_t ldo[__NUM_PCF50633_REGS][2];
++		/* enables are always [1] below
++		 * I2C has limit of 32 sequential regs, so done in two lumps
++		 * because it covers 33 register extent otherwise
++		 */
++		u_int8_t misc[PCF50633_REG_LEDDIM - PCF50633_REG_AUTOOUT + 1];
++		/*  skip 1 reserved reg here */
++		u_int8_t ldo[PCF50633_REG_HCLDOENA - PCF50633_REG_LDO1OUT + 1];
+ 	} standby_regs;
+ 
+ 	struct resume_dependency resume_dependency;
+@@ -1734,9 +1734,13 @@ static int pcf50633bl_set_intensity(struct backlight_device *bd)
+ 	u_int8_t ledena = 2;
+ 	int ret;
+ 
+-	if (bd->props.power != FB_BLANK_UNBLANK)
+-		intensity = 0;
+-	if (bd->props.fb_blank != FB_BLANK_UNBLANK)
++	dev_info(&pcf->client.dev, "pcf50633bl_set_intensity\n");
++
++	if (!(reg_read(pcf, PCF50633_REG_LEDENA) & 1))
++		old_intensity = 0;
++
++	if ((bd->props.power != FB_BLANK_UNBLANK) ||
++	    (bd->props.fb_blank != FB_BLANK_UNBLANK))
+ 		intensity = 0;
+ 
+ 	/* The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
+@@ -2211,6 +2215,9 @@ static int pcf50633_suspend(struct device *dev, pm_message_t state)
+ 	int i;
+ 	int ret;
+ 	u_int8_t tmp;
++	u_int8_t res[5];
++
++	dev_err(dev, "pcf50633_suspend\n");
+ 
+ 	/* we suspend once (!) as late as possible in the suspend sequencing */
+ 
+@@ -2218,30 +2225,26 @@ static int pcf50633_suspend(struct device *dev, pm_message_t state)
+ 		return 0;
+ 
+ 	/* The general idea is to power down all unused power supplies,
+-	 * and then mask all PCF50606 interrup sources but EXTONR, ONKEYF
++	 * and then mask all PCF50633 interrupt sources but EXTONR, ONKEYF
+ 	 * and ALARM */
+ 
+ 	mutex_lock(&pcf->lock);
+ 
+ 	/* Save all registers that don't "survive" standby state */
+ 	pcf->standby_regs.ooctim2 = __reg_read(pcf, PCF50633_REG_OOCTIM2);
+-	pcf->standby_regs.autoout = __reg_read(pcf, PCF50633_REG_AUTOOUT);
+-	pcf->standby_regs.autoena = __reg_read(pcf, PCF50633_REG_AUTOENA);
+-	pcf->standby_regs.automxc = __reg_read(pcf, PCF50633_REG_AUTOMXC);
+-	pcf->standby_regs.down1out = __reg_read(pcf, PCF50633_REG_DOWN1OUT);
+-	pcf->standby_regs.down1mxc = __reg_read(pcf, PCF50633_REG_DOWN1MXC);
+-	pcf->standby_regs.down2out = __reg_read(pcf, PCF50633_REG_DOWN2OUT);
+-	pcf->standby_regs.down2ena = __reg_read(pcf, PCF50633_REG_DOWN2ENA);
+-	pcf->standby_regs.memldoout = __reg_read(pcf, PCF50633_REG_MEMLDOOUT);
+-	pcf->standby_regs.memldoena = __reg_read(pcf, PCF50633_REG_MEMLDOENA);
+-	pcf->standby_regs.ledout = __reg_read(pcf, PCF50633_REG_LEDOUT);
+-	pcf->standby_regs.ledena = __reg_read(pcf, PCF50633_REG_LEDENA);
+-	pcf->standby_regs.leddim = __reg_read(pcf, PCF50633_REG_LEDDIM);
++
++	ret = i2c_smbus_read_i2c_block_data(&pcf->client,
++					    PCF50633_REG_AUTOOUT,
++					    sizeof(pcf->standby_regs.misc),
++					    &pcf->standby_regs.misc[0]);
++	if (ret != 18)
++		dev_err(dev, "Failed to save misc levels and enables :-(\n");
+ 
+ 	/* regulator voltages and enable states */
+ 	ret = i2c_smbus_read_i2c_block_data(&pcf->client,
+-					    PCF50633_REG_LDO1OUT, 14,
+-					    &pcf->standby_regs.ldo[0][0]);
++					    PCF50633_REG_LDO1OUT,
++					    sizeof(pcf->standby_regs.ldo),
++					    &pcf->standby_regs.ldo[0]);
+ 	if (ret != 14)
+ 		dev_err(dev, "Failed to save LDO levels and enables :-(\n");
+ 
+@@ -2251,11 +2254,16 @@ static int pcf50633_suspend(struct device *dev, pm_message_t state)
+ 			continue;
+ 
+ 		dev_dbg(dev, "disabling regulator %u\n", i);
+-		/* we cannot use pcf50633_onoff_set() because we're
+-		 * already under the mutex */
+-		tmp = __reg_read(pcf, regulator_registers[i]+1);
+-		tmp &= 0xfe;
+-		__reg_write(pcf, regulator_registers[i]+1, tmp);
++
++		/* we can save ourselves the read part of a read-modify-write
++		 * here because we captured all these already
++		 */
++		if (i < 4)
++			tmp = pcf->standby_regs.misc[i * 4 + 1];
++		else
++			tmp = pcf->standby_regs.ldo[(i - 4) * 2 + 1];
++
++		__reg_write(pcf, regulator_registers[i] + 1, tmp & 0xfe);
+ 	}
+ 
+ 	/* turn off the backlight */
+@@ -2266,11 +2274,14 @@ static int pcf50633_suspend(struct device *dev, pm_message_t state)
+ 	/* set interrupt masks so only those sources we want to wake
+ 	 * us are able to
+ 	 */
+-	__reg_write(pcf, PCF50633_REG_INT1M, ~pcf->pdata->resumers[0]);
+-	__reg_write(pcf, PCF50633_REG_INT2M, ~pcf->pdata->resumers[1]);
+-	__reg_write(pcf, PCF50633_REG_INT3M, ~pcf->pdata->resumers[2]);
+-	__reg_write(pcf, PCF50633_REG_INT4M, ~pcf->pdata->resumers[3]);
+-	__reg_write(pcf, PCF50633_REG_INT5M, ~pcf->pdata->resumers[4]);
++	for (i = 0; i < 5; i++)
++		res[i] = ~pcf->pdata->resumers[i];
++
++	ret = i2c_smbus_write_i2c_block_data(&pcf->client,
++					     PCF50633_REG_INT1M,
++					     5, &res[0]);
++	if (ret)
++		dev_err(dev, "Failed to set wake masks :-( %d\n", ret);
+ 
+ 	pcf->have_been_suspended = 1;
+ 
+@@ -2302,9 +2313,12 @@ EXPORT_SYMBOL_GPL(pcf50633_ready);
+ void pcf50633_backlight_resume(struct pcf50633_data *pcf)
+ {
+ 	/* we force the backlight on in fact */
+-	__reg_write(pcf, PCF50633_REG_LEDOUT, pcf->standby_regs.ledout);
+-	__reg_write(pcf, PCF50633_REG_LEDENA, pcf->standby_regs.ledena | 0x01);
+-	__reg_write(pcf, PCF50633_REG_LEDDIM, pcf->standby_regs.leddim);
++	__reg_write(pcf, PCF50633_REG_LEDOUT, pcf->standby_regs.misc[
++				   PCF50633_REG_LEDOUT - PCF50633_REG_AUTOOUT]);
++	__reg_write(pcf, PCF50633_REG_LEDENA, pcf->standby_regs.misc[
++			       PCF50633_REG_LEDENA - PCF50633_REG_AUTOOUT] | 1);
++	__reg_write(pcf, PCF50633_REG_LEDDIM, pcf->standby_regs.misc[
++				   PCF50633_REG_LEDDIM - PCF50633_REG_AUTOOUT]);
+ }
+ EXPORT_SYMBOL_GPL(pcf50633_backlight_resume);
+ 
+@@ -2314,7 +2328,10 @@ static int pcf50633_resume(struct device *dev)
+ 	struct i2c_client *client = to_i2c_client(dev);
+ 	struct pcf50633_data *pcf = i2c_get_clientdata(client);
+ 	int ret;
++	u8 res[5];
+ 
++	dev_info(dev, "pcf50633_resume suspended on entry = %d\n",
++						      pcf->have_been_suspended);
+ 	mutex_lock(&pcf->lock);
+ 
+ 	pcf->have_been_suspended = 2; /* resuming */
+@@ -2322,14 +2339,14 @@ static int pcf50633_resume(struct device *dev)
+ 	/* these guys get reset while pcf50633 is suspend state, refresh */
+ 
+ 	__reg_write(pcf, PCF50633_REG_OOCTIM2, pcf->standby_regs.ooctim2);
+-	__reg_write(pcf, PCF50633_REG_AUTOOUT, pcf->standby_regs.autoout);
+-	__reg_write(pcf, PCF50633_REG_AUTOMXC, pcf->standby_regs.automxc);
+-	__reg_write(pcf, PCF50633_REG_DOWN1OUT, pcf->standby_regs.down1out);
+-	__reg_write(pcf, PCF50633_REG_DOWN1MXC, pcf->standby_regs.down1mxc);
+-	__reg_write(pcf, PCF50633_REG_DOWN2OUT, pcf->standby_regs.down2out);
+-	__reg_write(pcf, PCF50633_REG_DOWN2ENA, pcf->standby_regs.down2ena);
+-	__reg_write(pcf, PCF50633_REG_MEMLDOOUT, pcf->standby_regs.memldoout);
+-	__reg_write(pcf, PCF50633_REG_MEMLDOENA, pcf->standby_regs.memldoena);
++
++	/* regulator voltages and enable states */
++	ret = i2c_smbus_write_i2c_block_data(&pcf->client,
++					     PCF50633_REG_AUTOOUT,
++					     sizeof(pcf->standby_regs.misc) - 4,
++					     &pcf->standby_regs.misc[0]);
++	if (ret)
++		dev_err(dev, "Failed to restore misc :-( %d\n", ret);
+ 
+ 	/* platform can choose to defer backlight bringup */
+ 	if (!pcf->pdata->defer_resume_backlight)
+@@ -2337,14 +2354,22 @@ static int pcf50633_resume(struct device *dev)
+ 
+ 	/* regulator voltages and enable states */
+ 	ret = i2c_smbus_write_i2c_block_data(&pcf->client,
+-					    PCF50633_REG_LDO1OUT, 14,
+-					    &pcf->standby_regs.ldo[0][0]);
++					     PCF50633_REG_LDO1OUT,
++					     sizeof(pcf->standby_regs.ldo),
++					     &pcf->standby_regs.ldo[0]);
+ 	if (ret)
+ 		dev_err(dev, "Failed to restore LDOs :-( %d\n", ret);
+ 
+-	mutex_unlock(&pcf->lock);
++	memset(res, 0, sizeof(res));
++	ret = i2c_smbus_write_i2c_block_data(&pcf->client,
++					     PCF50633_REG_INT1M,
++					     5, &res[0]);
++	if (ret)
++		dev_err(dev, "Failed to set int masks :-( %d\n", ret);
+ 
+-	pcf50633_irq(pcf->irq, pcf);
++	pcf->have_been_suspended = 3; /* resume completed */
++
++	mutex_unlock(&pcf->lock);
+ 
+ 	callback_all_resume_dependencies(&pcf->resume_dependency);
+ 
+-- 
+1.5.6.3
+