Thread (11 messages) 11 messages, 3 authors, 2012-11-21

Re: [PATCH v6 3/4] media: coda: use genalloc API

From: Paul Gortmaker <hidden>
Date: 2012-11-16 16:02:09
Also in: lkml

On 12-11-16 10:21 AM, Philipp Zabel wrote:
Am Freitag, den 16.11.2012, 10:08 -0500 schrieb Paul Gortmaker:
quoted
On 12-11-16 05:30 AM, Philipp Zabel wrote:
quoted
This patch depends on "genalloc: add a global pool list,
allow to find pools by phys address", which provides the
of_get_named_gen_pool function.

Signed-off-by: Philipp Zabel <redacted>
---
 drivers/media/platform/Kconfig |    3 +--
 drivers/media/platform/coda.c  |   47 ++++++++++++++++++++++++++++------------
 2 files changed, 34 insertions(+), 16 deletions(-)
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 181c768..09d45c6 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -130,10 +130,9 @@ if V4L_MEM2MEM_DRIVERS
 
 config VIDEO_CODA
 	tristate "Chips&Media Coda multi-standard codec IP"
-	depends on VIDEO_DEV && VIDEO_V4L2 && ARCH_MXC
+	depends on VIDEO_DEV && VIDEO_V4L2
What was the logic for reducing the dependency scope here?
Your commit log doesn't mention that at all, and when I see
things like that, I predict allyesconfig build failures,
unless there is a similar dependency elsewhere that isn't
visible in just the context of this patch alone.

P.
iram_alloc and iram_free are i.MX specific wrappers around
gen_pool_alloc and gen_pool_free, located in <mach/iram.h>.
Those were responsible for the dependency in the first place.
So when I do an allyesconfig for sparc, or parisc or alpha,
and VIDEO_CODA gets selected, it will build just fine then?
My point was that when you remove the ARCH_MXC dep, this
probably gets opened up as a viable option to a _lot_ more
platforms than you might want it exposed to.

Paul.
--
quoted
--
quoted
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
-	select IRAM_ALLOC if SOC_IMX53
 	---help---
 	   Coda is a range of video codec IPs that supports
 	   H.264, MPEG-4, and other video formats.
diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index cd04ae2..f17b659 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -14,6 +14,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/firmware.h>
+#include <linux/genalloc.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/irq.h>
@@ -24,7 +25,6 @@
 #include <linux/videodev2.h>
 #include <linux/of.h>
 
-#include <mach/iram.h>
[...]

After dropping the #include <mach/iram.h>, there is no need
to depend on ARCH_MXC anymore.

regards
Philipp
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