refresh and refine vlynq patch, patch from sn9

SVN-Revision: 24178
owl
Florian Fainelli 2010-11-28 18:03:42 +00:00
parent af2349b4bc
commit a2aa5a227e
1 changed files with 36 additions and 34 deletions

View File

@ -1,7 +1,7 @@
Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
===================================================================
--- linux-2.6.32.26.orig/drivers/vlynq/vlynq.c 2010-11-24 13:01:20.459985351 -0800
+++ linux-2.6.32.26/drivers/vlynq/vlynq.c 2010-11-24 13:01:43.537494084 -0800
--- linux-2.6.32.26.orig/drivers/vlynq/vlynq.c 2010-11-22 10:48:20.000000000 -0800
+++ linux-2.6.32.26/drivers/vlynq/vlynq.c 2010-11-28 02:56:51.972405343 -0800
@@ -103,6 +103,12 @@
}
#endif
@ -15,7 +15,7 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
/* Check the VLYNQ link status with a given device */
static int vlynq_linked(struct vlynq_device *dev)
{
@@ -117,20 +123,43 @@
@@ -117,20 +123,40 @@
return 0;
}
@ -38,9 +38,6 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
{
+ u32 rtm = readl(&dev->local->revision);
+
+ if (rtm < 0x00010200)
+ return;
+
+ rtm = rtm < 0x00010205 || readl(&dev->local->status) & 0x800 == 0 ?
+ 0 : 0x600000;
+
@ -62,7 +59,7 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
}
static void vlynq_irq_unmask(unsigned int irq)
@@ -379,6 +408,62 @@
@@ -379,6 +405,61 @@
}
EXPORT_SYMBOL(vlynq_unregister_driver);
@ -85,9 +82,6 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
+ return -EINVAL;
+ }
+
+ printk(KERN_INFO "%s: local VLYNQ protocol rev. is 0x%08x\n",
+ dev_name(&dev->dev), readl(&dev->local->revision));
+
+ reg = readl(&dev->local->control);
+ if (readl(&dev->local->revision) < 0x00010205) {
+ if (clk_dir & vlynq_clk_local)
@ -102,6 +96,8 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
+ if (!vlynq_linked(dev))
+ return -ENODEV;
+
+ printk(KERN_INFO "%s: local VLYNQ protocol rev. is 0x%08x\n",
+ dev_name(&dev->dev), readl(&dev->local->revision));
+ printk(KERN_INFO "%s: remote VLYNQ protocol rev. is 0x%08x\n",
+ dev_name(&dev->dev), readl(&dev->remote->revision));
+
@ -125,15 +121,16 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
/*
* A VLYNQ remote device can clock the VLYNQ bus master
* using a dedicated clock line. In that case, both the
@@ -392,29 +477,15 @@
@@ -392,29 +473,17 @@
int i;
vlynq_reset(dev);
- for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ?
- i <= vlynq_rdiv8 : i >= vlynq_rdiv2;
- dev->dev_id ? i++ : i--) {
-
+ for (i = 0; i <= 7; i++) {
+ for (i = dev->dev_id ? 0 : 7; dev->dev_id ? i <= 7 : i >= 0;
+ dev->dev_id ? i++ : i--) {
if (!vlynq_linked(dev))
break;
@ -149,18 +146,19 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- &dev->local->control);
-
- if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, i, i)) {
printk(KERN_DEBUG
- printk(KERN_DEBUG
- "%s: using remote clock divisor %d\n",
- dev_name(&dev->dev), i - vlynq_rdiv1 + 1);
- dev->divisor = i;
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, i, i)) {
+ printk(KERN_INFO
+ "%s: using remote clock divisor %d\n",
+ dev_name(&dev->dev), i + 1);
+ dev->divisor = i + vlynq_rdiv1;
return 0;
} else {
vlynq_reset(dev);
@@ -437,21 +508,12 @@
@@ -437,21 +506,14 @@
vlynq_reset(dev);
@ -175,12 +173,15 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- &dev->local->control);
-
- if (vlynq_linked(dev)) {
+ for (i = 0; i <= 7; i++) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_local, i, 0)) {
printk(KERN_DEBUG
- printk(KERN_DEBUG
- "%s: using local clock divisor %d\n",
- dev_name(&dev->dev), i - vlynq_ldiv1 + 1);
- dev->divisor = i;
+ for (i = dev->dev_id ? 0 : 7; dev->dev_id ? i <= 7 : i >= 0;
+ dev->dev_id ? i++ : i--) {
+
+ if (!__vlynq_set_clocks(dev, vlynq_clk_local, i, 0)) {
+ printk(KERN_INFO
+ "%s: using local clock divisor %d\n",
+ dev_name(&dev->dev), i + 1);
+ dev->divisor = i + vlynq_ldiv1;
@ -200,10 +201,11 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- &dev->local->control);
-
- if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_external, 0, 0)) {
printk(KERN_DEBUG "%s: using external clock\n",
- printk(KERN_DEBUG "%s: using external clock\n",
- dev_name(&dev->dev));
- dev->divisor = vlynq_div_external;
+ if (!__vlynq_set_clocks(dev, vlynq_clk_external, 0, 0)) {
+ printk(KERN_INFO "%s: using external clock\n",
+ dev_name(&dev->dev));
+ dev->divisor = vlynq_div_external;
return 0;
@ -240,12 +242,13 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- vlynq_ldiv1), &dev->local->control);
- writel(0, &dev->remote->control);
- if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_local, dev->divisor -
+ vlynq_ldiv1, 0)) {
printk(KERN_DEBUG
- printk(KERN_DEBUG
- "%s: using local clock divisor %d\n",
- dev_name(&dev->dev),
- dev->divisor - vlynq_ldiv1 + 1);
+ if (!__vlynq_set_clocks(dev, vlynq_clk_local, dev->divisor -
+ vlynq_ldiv1, 0)) {
+ printk(KERN_INFO
+ "%s: using local clock divisor %d\n",
+ dev_name(&dev->dev),
+ dev->divisor - vlynq_ldiv1 + 1);
@ -261,19 +264,20 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
- VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
- vlynq_rdiv1), &dev->remote->control);
- if (vlynq_linked(dev)) {
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, 0,
+ dev->divisor - vlynq_rdiv1)) {
printk(KERN_DEBUG
- printk(KERN_DEBUG
- "%s: using remote clock divisor %d\n",
- dev_name(&dev->dev),
- dev->divisor - vlynq_rdiv1 + 1);
+ if (!__vlynq_set_clocks(dev, vlynq_clk_remote, 0,
+ dev->divisor - vlynq_rdiv1)) {
+ printk(KERN_INFO
+ "%s: using remote clock divisor %d\n",
+ dev_name(&dev->dev),
+ dev->divisor - vlynq_rdiv1 + 1);
return 0;
}
break;
@@ -732,13 +771,13 @@
@@ -732,13 +771,12 @@
platform_set_drvdata(pdev, dev);
printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n",
@ -282,20 +286,18 @@ Index: linux-2.6.32.26/drivers/vlynq/vlynq.c
+ dev_name(&dev->dev), (void *)dev->regs_start,
+ dev->irq, (void *)dev->mem_start);
- dev->dev_id = 0;
dev->dev_id = 0;
dev->divisor = vlynq_div_auto;
- result = __vlynq_enable_device(dev);
- if (result == 0) {
+ if (__vlynq_enable_device(dev))
+ dev->dev_id = 0;
+ else {
+ if (!__vlynq_enable_device(dev)) {
dev->dev_id = readl(&dev->remote->chip);
((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev);
}
Index: linux-2.6.32.26/include/linux/vlynq.h
===================================================================
--- linux-2.6.32.26.orig/include/linux/vlynq.h 2010-11-24 13:07:33.297487888 -0800
+++ linux-2.6.32.26/include/linux/vlynq.h 2010-11-24 13:08:44.107488596 -0800
--- linux-2.6.32.26.orig/include/linux/vlynq.h 2010-11-22 10:48:20.000000000 -0800
+++ linux-2.6.32.26/include/linux/vlynq.h 2010-11-27 12:08:39.312438011 -0800
@@ -98,6 +98,7 @@
extern struct bus_type vlynq_bus_type;