path: root/include/linux/amba
diff options
authorLinus Walleij <linus.walleij@linaro.org>2012-04-12 09:01:49 +0200
committerVinod Koul <vinod.koul@linux.intel.com>2012-04-25 15:21:47 +0530
commitaffa115ed365d646ad1a8cc7d2d063b8181cce37 (patch)
treedf3d7caa7a0e42228312d6974977e1903306f891 /include/linux/amba
parentd29bf01941795891828bf671f74c3a4f6fc3517f (diff)
dma/amba-pl08x: add support for the Nomadik variant
The Nomadik PL080 variant has some extra protection bits that may be set, so we need to check these bits to see if the channels are actually available for the DMAengine to use. Cc: Russell King <linux@arm.linux.org.uk> Cc: Alim Akhtar <alim.akhtar@gmail.com> Cc: Alessandro Rubini <rubini@gnudd.com> Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'include/linux/amba')
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h
index e64ce2cfee9..02549017212 100644
--- a/include/linux/amba/pl08x.h
+++ b/include/linux/amba/pl08x.h
@@ -92,6 +92,8 @@ struct pl08x_bus_data {
* right now
* @serving: the virtual channel currently being served by this physical
* channel
+ * @locked: channel unavailable for the system, e.g. dedicated to secure
+ * world
struct pl08x_phy_chan {
unsigned int id;
@@ -99,6 +101,7 @@ struct pl08x_phy_chan {
spinlock_t lock;
int signal;
struct pl08x_dma_chan *serving;
+ bool locked;