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authorJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
committerJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
commit617677295b53a40d0e54aac4cbbc216ffbc755dd (patch)
tree51b9e87213243ed5efff252c8e8d8fec4eebc588 /drivers/pnp/manager.c
parent5c8d1b68e01a144813e38795fe6dbe7ebb506131 (diff)
parent6abb7c25775b7fb2225ad0508236d63ca710e65f (diff)
Merge branch 'master' into for-next
Conflicts: drivers/devfreq/exynos4_bus.c Sync with Linus' tree to be able to apply patches that are against newer code (mvneta).
Diffstat (limited to 'drivers/pnp/manager.c')
-rw-r--r--drivers/pnp/manager.c25
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index ed9ce507149..95cebf0185d 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -18,11 +18,27 @@
DEFINE_MUTEX(pnp_res_mutex);
+static struct resource *pnp_find_resource(struct pnp_dev *dev,
+ unsigned char rule,
+ unsigned long type,
+ unsigned int bar)
+{
+ struct resource *res = pnp_get_resource(dev, type, bar);
+
+ /* when the resource already exists, set its resource bits from rule */
+ if (res) {
+ res->flags &= ~IORESOURCE_BITS;
+ res->flags |= rule & IORESOURCE_BITS;
+ }
+
+ return res;
+}
+
static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
{
struct resource *res, local_res;
- res = pnp_get_resource(dev, IORESOURCE_IO, idx);
+ res = pnp_find_resource(dev, rule->flags, IORESOURCE_IO, idx);
if (res) {
pnp_dbg(&dev->dev, " io %d already set to %#llx-%#llx "
"flags %#lx\n", idx, (unsigned long long) res->start,
@@ -65,7 +81,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
{
struct resource *res, local_res;
- res = pnp_get_resource(dev, IORESOURCE_MEM, idx);
+ res = pnp_find_resource(dev, rule->flags, IORESOURCE_MEM, idx);
if (res) {
pnp_dbg(&dev->dev, " mem %d already set to %#llx-%#llx "
"flags %#lx\n", idx, (unsigned long long) res->start,
@@ -78,6 +94,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
res->start = 0;
res->end = 0;
+ /* ??? rule->flags restricted to 8 bits, all tests bogus ??? */
if (!(rule->flags & IORESOURCE_MEM_WRITEABLE))
res->flags |= IORESOURCE_READONLY;
if (rule->flags & IORESOURCE_MEM_CACHEABLE)
@@ -123,7 +140,7 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
};
- res = pnp_get_resource(dev, IORESOURCE_IRQ, idx);
+ res = pnp_find_resource(dev, rule->flags, IORESOURCE_IRQ, idx);
if (res) {
pnp_dbg(&dev->dev, " irq %d already set to %d flags %#lx\n",
idx, (int) res->start, res->flags);
@@ -182,7 +199,7 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
1, 3, 5, 6, 7, 0, 2, 4
};
- res = pnp_get_resource(dev, IORESOURCE_DMA, idx);
+ res = pnp_find_resource(dev, rule->flags, IORESOURCE_DMA, idx);
if (res) {
pnp_dbg(&dev->dev, " dma %d already set to %d flags %#lx\n",
idx, (int) res->start, res->flags);