| Message ID | 1312813712-22808-7-git-send-email-tixy@yxit.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Jon, On Mon, Aug 08, 2011 at 03:28:26PM +0100, Jon Medhurst wrote: > Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> > CC: Sascha Hauer <kernel@pengutronix.de> > CC: Amit Kucheria <amit.kucheria@canonical.com> > --- > arch/arm/plat-mxc/include/mach/common.h | 1 + > arch/arm/plat-mxc/include/mach/memory.h | 15 --------------- > arch/arm/mach-imx/mm-imx1.c | 1 + > arch/arm/mach-imx/mm-imx21.c | 1 + > arch/arm/mach-imx/mm-imx25.c | 1 + > arch/arm/mach-imx/mm-imx27.c | 1 + > arch/arm/mach-imx/mm-imx31.c | 1 + > arch/arm/mach-imx/mm-imx35.c | 1 + > arch/arm/mach-mx5/mm-mx50.c | 1 + > arch/arm/mach-mx5/mm.c | 2 ++ > arch/arm/plat-mxc/system.c | 16 ++++++++++++++++ > 11 files changed, 26 insertions(+), 15 deletions(-) Should the base patch be ok I'd like to rework this one. I want to call init_consistent_dma_size on a per board base instead in a global function with ifdeffery. Sascha > > diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h > index 4e3d978..40fb4d8 100644 > --- a/arch/arm/plat-mxc/include/mach/common.h > +++ b/arch/arm/plat-mxc/include/mach/common.h > @@ -72,4 +72,5 @@ extern void mxc_arch_reset_init(void __iomem *); > extern void mx51_efikamx_reset(void); > extern int mx53_revision(void); > extern int mx53_display_revision(void); > +extern void __init mxc_init_consistent_dma_size(void); > #endif > diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h > index 11be5cd..3ec84b9 100644 > --- a/arch/arm/plat-mxc/include/mach/memory.h > +++ b/arch/arm/plat-mxc/include/mach/memory.h > @@ -40,19 +40,4 @@ > # endif > #endif > > -#if defined(CONFIG_MX3_VIDEO) > -/* > - * Increase size of DMA-consistent memory region. > - * This is required for mx3 camera driver to capture at least two QXGA frames. > - */ > -#define CONSISTENT_DMA_SIZE SZ_8M > - > -#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) > -/* > - * Increase size of DMA-consistent memory region. > - * This is required for i.MX camera driver to capture at least four VGA frames. > - */ > -#define CONSISTENT_DMA_SIZE SZ_4M > -#endif /* CONFIG_MX1_VIDEO || CONFIG_VIDEO_MX2_HOSTSUPPORT */ > - > #endif /* __ASM_ARCH_MXC_MEMORY_H__ */ > diff --git a/arch/arm/mach-imx/mm-imx1.c b/arch/arm/mach-imx/mm-imx1.c > index 2bded59..f70e318 100644 > --- a/arch/arm/mach-imx/mm-imx1.c > +++ b/arch/arm/mach-imx/mm-imx1.c > @@ -33,6 +33,7 @@ static struct map_desc imx_io_desc[] __initdata = { > void __init mx1_map_io(void) > { > iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx1_init_early(void) > diff --git a/arch/arm/mach-imx/mm-imx21.c b/arch/arm/mach-imx/mm-imx21.c > index 3f05dfe..440816a 100644 > --- a/arch/arm/mach-imx/mm-imx21.c > +++ b/arch/arm/mach-imx/mm-imx21.c > @@ -60,6 +60,7 @@ static struct map_desc imx21_io_desc[] __initdata = { > void __init mx21_map_io(void) > { > iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx21_init_early(void) > diff --git a/arch/arm/mach-imx/mm-imx25.c b/arch/arm/mach-imx/mm-imx25.c > index cc4d152..12f5759 100644 > --- a/arch/arm/mach-imx/mm-imx25.c > +++ b/arch/arm/mach-imx/mm-imx25.c > @@ -48,6 +48,7 @@ static struct map_desc mx25_io_desc[] __initdata = { > void __init mx25_map_io(void) > { > iotable_init(mx25_io_desc, ARRAY_SIZE(mx25_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx25_init_early(void) > diff --git a/arch/arm/mach-imx/mm-imx27.c b/arch/arm/mach-imx/mm-imx27.c > index 96dd1f5..8799265 100644 > --- a/arch/arm/mach-imx/mm-imx27.c > +++ b/arch/arm/mach-imx/mm-imx27.c > @@ -60,6 +60,7 @@ static struct map_desc imx27_io_desc[] __initdata = { > void __init mx27_map_io(void) > { > iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx27_init_early(void) > diff --git a/arch/arm/mach-imx/mm-imx31.c b/arch/arm/mach-imx/mm-imx31.c > index b7c55e7..b2331cf 100644 > --- a/arch/arm/mach-imx/mm-imx31.c > +++ b/arch/arm/mach-imx/mm-imx31.c > @@ -45,6 +45,7 @@ static struct map_desc mx31_io_desc[] __initdata = { > void __init mx31_map_io(void) > { > iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx31_init_early(void) > diff --git a/arch/arm/mach-imx/mm-imx35.c b/arch/arm/mach-imx/mm-imx35.c > index f49bac7..eb60521 100644 > --- a/arch/arm/mach-imx/mm-imx35.c > +++ b/arch/arm/mach-imx/mm-imx35.c > @@ -41,6 +41,7 @@ static struct map_desc mx35_io_desc[] __initdata = { > void __init mx35_map_io(void) > { > iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx35_init_early(void) > diff --git a/arch/arm/mach-mx5/mm-mx50.c b/arch/arm/mach-mx5/mm-mx50.c > index 77e374c..04a02cc 100644 > --- a/arch/arm/mach-mx5/mm-mx50.c > +++ b/arch/arm/mach-mx5/mm-mx50.c > @@ -46,6 +46,7 @@ static struct map_desc mx50_io_desc[] __initdata = { > void __init mx50_map_io(void) > { > iotable_init(mx50_io_desc, ARRAY_SIZE(mx50_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx50_init_early(void) > diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c > index baea6e5..e0ca2b5 100644 > --- a/arch/arm/mach-mx5/mm.c > +++ b/arch/arm/mach-mx5/mm.c > @@ -49,6 +49,7 @@ static struct map_desc mx53_io_desc[] __initdata = { > void __init mx51_map_io(void) > { > iotable_init(mx51_io_desc, ARRAY_SIZE(mx51_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx51_init_early(void) > @@ -61,6 +62,7 @@ void __init imx51_init_early(void) > void __init mx53_map_io(void) > { > iotable_init(mx53_io_desc, ARRAY_SIZE(mx53_io_desc)); > + mxc_init_consistent_dma_size(); > } > > void __init imx53_init_early(void) > diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c > index 8024f2a..75d1592 100644 > --- a/arch/arm/plat-mxc/system.c > +++ b/arch/arm/plat-mxc/system.c > @@ -21,6 +21,7 @@ > #include <linux/io.h> > #include <linux/err.h> > #include <linux/delay.h> > +#include <linux/dma-mapping.h> > > #include <mach/hardware.h> > #include <mach/common.h> > @@ -74,3 +75,18 @@ void mxc_arch_reset_init(void __iomem *base) > { > wdog_base = base; > } > + > +void __init mxc_init_consistent_dma_size(void) > +{ > +#if defined(CONFIG_MX3_VIDEO) > + > + /* Required for mx3 camera driver to capture at least two QXGA frames */ > + init_consistent_dma_size(SZ_8M); > + > +#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) > + > + /* Required for i.MX camera driver to capture at least 4 VGA frames */ > + init_consistent_dma_size(SZ_4M); > + > +#endif > +} > -- > 1.7.2.5 > >
On Mon, 2011-08-08 at 18:47 +0200, Sascha Hauer wrote: > Hi Jon, > > On Mon, Aug 08, 2011 at 03:28:26PM +0100, Jon Medhurst wrote: > > Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> > > CC: Sascha Hauer <kernel@pengutronix.de> > > CC: Amit Kucheria <amit.kucheria@canonical.com> > > --- > > arch/arm/plat-mxc/include/mach/common.h | 1 + > > arch/arm/plat-mxc/include/mach/memory.h | 15 --------------- > > arch/arm/mach-imx/mm-imx1.c | 1 + > > arch/arm/mach-imx/mm-imx21.c | 1 + > > arch/arm/mach-imx/mm-imx25.c | 1 + > > arch/arm/mach-imx/mm-imx27.c | 1 + > > arch/arm/mach-imx/mm-imx31.c | 1 + > > arch/arm/mach-imx/mm-imx35.c | 1 + > > arch/arm/mach-mx5/mm-mx50.c | 1 + > > arch/arm/mach-mx5/mm.c | 2 ++ > > arch/arm/plat-mxc/system.c | 16 ++++++++++++++++ > > 11 files changed, 26 insertions(+), 15 deletions(-) > > Should the base patch be ok I'd like to rework this one. I want to > call init_consistent_dma_size on a per board base instead in a global > function with ifdeffery. Yes, that would be the a better way. I started down that route myself but realised I didn't have the confidence to be certain which video drivers and config options were valid with which platforms. So I played safe and kept the existing behaviour.
On Mon, 8 Aug 2011, Sascha Hauer wrote: > Hi Jon, > > On Mon, Aug 08, 2011 at 03:28:26PM +0100, Jon Medhurst wrote: > > Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> > > CC: Sascha Hauer <kernel@pengutronix.de> > > CC: Amit Kucheria <amit.kucheria@canonical.com> > > --- > > arch/arm/plat-mxc/include/mach/common.h | 1 + > > arch/arm/plat-mxc/include/mach/memory.h | 15 --------------- > > arch/arm/mach-imx/mm-imx1.c | 1 + > > arch/arm/mach-imx/mm-imx21.c | 1 + > > arch/arm/mach-imx/mm-imx25.c | 1 + > > arch/arm/mach-imx/mm-imx27.c | 1 + > > arch/arm/mach-imx/mm-imx31.c | 1 + > > arch/arm/mach-imx/mm-imx35.c | 1 + > > arch/arm/mach-mx5/mm-mx50.c | 1 + > > arch/arm/mach-mx5/mm.c | 2 ++ > > arch/arm/plat-mxc/system.c | 16 ++++++++++++++++ > > 11 files changed, 26 insertions(+), 15 deletions(-) > > Should the base patch be ok I'd like to rework this one. I want to > call init_consistent_dma_size on a per board base instead in a global > function with ifdeffery. Hello Sascha, Did you manage to work on this? Ideally it would be nice to have a reworked patch from you that could be used in this series as some later patches depend on this series. Thanks. Nicolas
On Wed, 2011-08-17 at 23:12 -0400, Nicolas Pitre wrote: > On Mon, 8 Aug 2011, Sascha Hauer wrote: > > > Hi Jon, > > > > On Mon, Aug 08, 2011 at 03:28:26PM +0100, Jon Medhurst wrote: > > > Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> > > > CC: Sascha Hauer <kernel@pengutronix.de> > > > CC: Amit Kucheria <amit.kucheria@canonical.com> > > > --- > > > arch/arm/plat-mxc/include/mach/common.h | 1 + > > > arch/arm/plat-mxc/include/mach/memory.h | 15 --------------- > > > arch/arm/mach-imx/mm-imx1.c | 1 + > > > arch/arm/mach-imx/mm-imx21.c | 1 + > > > arch/arm/mach-imx/mm-imx25.c | 1 + > > > arch/arm/mach-imx/mm-imx27.c | 1 + > > > arch/arm/mach-imx/mm-imx31.c | 1 + > > > arch/arm/mach-imx/mm-imx35.c | 1 + > > > arch/arm/mach-mx5/mm-mx50.c | 1 + > > > arch/arm/mach-mx5/mm.c | 2 ++ > > > arch/arm/plat-mxc/system.c | 16 ++++++++++++++++ > > > 11 files changed, 26 insertions(+), 15 deletions(-) > > > > Should the base patch be ok I'd like to rework this one. I want to > > call init_consistent_dma_size on a per board base instead in a global > > function with ifdeffery. > > Hello Sascha, > > Did you manage to work on this? Ideally it would be nice to have a > reworked patch from you that could be used in this series as some later > patches depend on this series. Are we happy with the base patch? Specifically, having init_consistent_dma_size() declaired in include/asm/dma-mapping.h? If so, I don't mind making the changes if Sascha can give me some rules and pattern to apply. E.g. is it In mach-imx/mm-imx2*.c #if defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) init_consistent_dma_size(SZ_4M); #endif And likewise with CONFIG_MX1_VIDEO in mach-imx/mm-imx1.c and CONFIG_MX3_VIDEO in mach-imx/mm-imx3*.c. What about mach-mx5?
On Thu, Aug 18, 2011 at 09:13:36AM +0100, Tixy wrote: > On Wed, 2011-08-17 at 23:12 -0400, Nicolas Pitre wrote: > > On Mon, 8 Aug 2011, Sascha Hauer wrote: > > > > > Hi Jon, > > > > > > On Mon, Aug 08, 2011 at 03:28:26PM +0100, Jon Medhurst wrote: > > > > Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> > > > > CC: Sascha Hauer <kernel@pengutronix.de> > > > > CC: Amit Kucheria <amit.kucheria@canonical.com> > > > > --- > > > > arch/arm/plat-mxc/include/mach/common.h | 1 + > > > > arch/arm/plat-mxc/include/mach/memory.h | 15 --------------- > > > > arch/arm/mach-imx/mm-imx1.c | 1 + > > > > arch/arm/mach-imx/mm-imx21.c | 1 + > > > > arch/arm/mach-imx/mm-imx25.c | 1 + > > > > arch/arm/mach-imx/mm-imx27.c | 1 + > > > > arch/arm/mach-imx/mm-imx31.c | 1 + > > > > arch/arm/mach-imx/mm-imx35.c | 1 + > > > > arch/arm/mach-mx5/mm-mx50.c | 1 + > > > > arch/arm/mach-mx5/mm.c | 2 ++ > > > > arch/arm/plat-mxc/system.c | 16 ++++++++++++++++ > > > > 11 files changed, 26 insertions(+), 15 deletions(-) > > > > > > Should the base patch be ok I'd like to rework this one. I want to > > > call init_consistent_dma_size on a per board base instead in a global > > > function with ifdeffery. > > > > Hello Sascha, > > > > Did you manage to work on this? Ideally it would be nice to have a > > reworked patch from you that could be used in this series as some later > > patches depend on this series. > > Are we happy with the base patch? Specifically, having > init_consistent_dma_size() declaired in include/asm/dma-mapping.h? > > If so, I don't mind making the changes if Sascha can give me some rules > and pattern to apply. E.g. is it > > In mach-imx/mm-imx2*.c > > #if defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) > init_consistent_dma_size(SZ_4M); > #endif > > And likewise with CONFIG_MX1_VIDEO in mach-imx/mm-imx1.c and > CONFIG_MX3_VIDEO in mach-imx/mm-imx3*.c. > > What about mach-mx5? Sorry, I forgot about this issue. The solution is really simple: All boards in tree using video use memblock_* functions to get their coherent dma space for the camera. So we can just remove all CONSISTENT_DMA_SIZE defines in arch/arm/plat-mxc/include/mach/memory.h. If I understand your patch correctly we get a default size of 2MiB when init_consistent_dma_size() is not called. That's fine for the other i.MX boards. Sascha
On Fri, Aug 19, 2011 at 10:08:21AM +0100, Tixy wrote: > > Sorry, I forgot about this issue. The solution is really simple: All > > boards in tree using video use memblock_* functions to get their > > coherent dma space for the camera. So we can just remove all > > CONSISTENT_DMA_SIZE defines in arch/arm/plat-mxc/include/mach/memory.h. > > > > If I understand your patch correctly we get a default size of 2MiB > > when init_consistent_dma_size() is not called. That's fine for the other > > i.MX boards. > > Just to make sure I've understood. I see memblock_ calls in > mach-mx31_3ds.c > mach-pcm037.c > mach-mx31moboard.c > these all seem to be mx3 related. > > For mx1 and mx2, these currently increase CONSISTENT_DMA_SIZE to 4MB, > but the 2MB default is actually big enough for these? It should be bigger for boards which make use of the camera driver, but no mx1/2 board in the tree currently registers the camera. > > Therefore, as you said, we can just delete the definitions of > CONSISTENT_DMA_SIZE from memory.h and leave all other imx and mx5 files > unchanged. Yes Sascha
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 4e3d978..40fb4d8 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -72,4 +72,5 @@ extern void mxc_arch_reset_init(void __iomem *); extern void mx51_efikamx_reset(void); extern int mx53_revision(void); extern int mx53_display_revision(void); +extern void __init mxc_init_consistent_dma_size(void); #endif diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h index 11be5cd..3ec84b9 100644 --- a/arch/arm/plat-mxc/include/mach/memory.h +++ b/arch/arm/plat-mxc/include/mach/memory.h @@ -40,19 +40,4 @@ # endif #endif -#if defined(CONFIG_MX3_VIDEO) -/* - * Increase size of DMA-consistent memory region. - * This is required for mx3 camera driver to capture at least two QXGA frames. - */ -#define CONSISTENT_DMA_SIZE SZ_8M - -#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) -/* - * Increase size of DMA-consistent memory region. - * This is required for i.MX camera driver to capture at least four VGA frames. - */ -#define CONSISTENT_DMA_SIZE SZ_4M -#endif /* CONFIG_MX1_VIDEO || CONFIG_VIDEO_MX2_HOSTSUPPORT */ - #endif /* __ASM_ARCH_MXC_MEMORY_H__ */ diff --git a/arch/arm/mach-imx/mm-imx1.c b/arch/arm/mach-imx/mm-imx1.c index 2bded59..f70e318 100644 --- a/arch/arm/mach-imx/mm-imx1.c +++ b/arch/arm/mach-imx/mm-imx1.c @@ -33,6 +33,7 @@ static struct map_desc imx_io_desc[] __initdata = { void __init mx1_map_io(void) { iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx1_init_early(void) diff --git a/arch/arm/mach-imx/mm-imx21.c b/arch/arm/mach-imx/mm-imx21.c index 3f05dfe..440816a 100644 --- a/arch/arm/mach-imx/mm-imx21.c +++ b/arch/arm/mach-imx/mm-imx21.c @@ -60,6 +60,7 @@ static struct map_desc imx21_io_desc[] __initdata = { void __init mx21_map_io(void) { iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx21_init_early(void) diff --git a/arch/arm/mach-imx/mm-imx25.c b/arch/arm/mach-imx/mm-imx25.c index cc4d152..12f5759 100644 --- a/arch/arm/mach-imx/mm-imx25.c +++ b/arch/arm/mach-imx/mm-imx25.c @@ -48,6 +48,7 @@ static struct map_desc mx25_io_desc[] __initdata = { void __init mx25_map_io(void) { iotable_init(mx25_io_desc, ARRAY_SIZE(mx25_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx25_init_early(void) diff --git a/arch/arm/mach-imx/mm-imx27.c b/arch/arm/mach-imx/mm-imx27.c index 96dd1f5..8799265 100644 --- a/arch/arm/mach-imx/mm-imx27.c +++ b/arch/arm/mach-imx/mm-imx27.c @@ -60,6 +60,7 @@ static struct map_desc imx27_io_desc[] __initdata = { void __init mx27_map_io(void) { iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx27_init_early(void) diff --git a/arch/arm/mach-imx/mm-imx31.c b/arch/arm/mach-imx/mm-imx31.c index b7c55e7..b2331cf 100644 --- a/arch/arm/mach-imx/mm-imx31.c +++ b/arch/arm/mach-imx/mm-imx31.c @@ -45,6 +45,7 @@ static struct map_desc mx31_io_desc[] __initdata = { void __init mx31_map_io(void) { iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx31_init_early(void) diff --git a/arch/arm/mach-imx/mm-imx35.c b/arch/arm/mach-imx/mm-imx35.c index f49bac7..eb60521 100644 --- a/arch/arm/mach-imx/mm-imx35.c +++ b/arch/arm/mach-imx/mm-imx35.c @@ -41,6 +41,7 @@ static struct map_desc mx35_io_desc[] __initdata = { void __init mx35_map_io(void) { iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx35_init_early(void) diff --git a/arch/arm/mach-mx5/mm-mx50.c b/arch/arm/mach-mx5/mm-mx50.c index 77e374c..04a02cc 100644 --- a/arch/arm/mach-mx5/mm-mx50.c +++ b/arch/arm/mach-mx5/mm-mx50.c @@ -46,6 +46,7 @@ static struct map_desc mx50_io_desc[] __initdata = { void __init mx50_map_io(void) { iotable_init(mx50_io_desc, ARRAY_SIZE(mx50_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx50_init_early(void) diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c index baea6e5..e0ca2b5 100644 --- a/arch/arm/mach-mx5/mm.c +++ b/arch/arm/mach-mx5/mm.c @@ -49,6 +49,7 @@ static struct map_desc mx53_io_desc[] __initdata = { void __init mx51_map_io(void) { iotable_init(mx51_io_desc, ARRAY_SIZE(mx51_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx51_init_early(void) @@ -61,6 +62,7 @@ void __init imx51_init_early(void) void __init mx53_map_io(void) { iotable_init(mx53_io_desc, ARRAY_SIZE(mx53_io_desc)); + mxc_init_consistent_dma_size(); } void __init imx53_init_early(void) diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c index 8024f2a..75d1592 100644 --- a/arch/arm/plat-mxc/system.c +++ b/arch/arm/plat-mxc/system.c @@ -21,6 +21,7 @@ #include <linux/io.h> #include <linux/err.h> #include <linux/delay.h> +#include <linux/dma-mapping.h> #include <mach/hardware.h> #include <mach/common.h> @@ -74,3 +75,18 @@ void mxc_arch_reset_init(void __iomem *base) { wdog_base = base; } + +void __init mxc_init_consistent_dma_size(void) +{ +#if defined(CONFIG_MX3_VIDEO) + + /* Required for mx3 camera driver to capture at least two QXGA frames */ + init_consistent_dma_size(SZ_8M); + +#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) + + /* Required for i.MX camera driver to capture at least 4 VGA frames */ + init_consistent_dma_size(SZ_4M); + +#endif +}
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> CC: Sascha Hauer <kernel@pengutronix.de> CC: Amit Kucheria <amit.kucheria@canonical.com> --- arch/arm/plat-mxc/include/mach/common.h | 1 + arch/arm/plat-mxc/include/mach/memory.h | 15 --------------- arch/arm/mach-imx/mm-imx1.c | 1 + arch/arm/mach-imx/mm-imx21.c | 1 + arch/arm/mach-imx/mm-imx25.c | 1 + arch/arm/mach-imx/mm-imx27.c | 1 + arch/arm/mach-imx/mm-imx31.c | 1 + arch/arm/mach-imx/mm-imx35.c | 1 + arch/arm/mach-mx5/mm-mx50.c | 1 + arch/arm/mach-mx5/mm.c | 2 ++ arch/arm/plat-mxc/system.c | 16 ++++++++++++++++ 11 files changed, 26 insertions(+), 15 deletions(-)