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authorJarkko Nikula <jarkko.nikula@bitmer.com>2011-09-26 10:45:43 +0300
committerTony Lindgren <tony@atomide.com>2011-09-26 17:48:18 -0700
commitac6747ca0d2e01ed55281d1cc95b5dc646735a20 (patch)
tree9696ff219bc6cc23cbe22829287f0cedd7152931
parentARM: OMAP: mcbsp: Make threshold based transfer code generic (diff)
downloadlinux-dev-ac6747ca0d2e01ed55281d1cc95b5dc646735a20.tar.xz
linux-dev-ac6747ca0d2e01ed55281d1cc95b5dc646735a20.zip
ARM: OMAP: mcbsp: Use per instance register cache size
Rationale here is to remove one global variable and to make possible to have variable size McBSP register maps inside SoC. Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
-rw-r--r--arch/arm/plat-omap/include/plat/mcbsp.h3
-rw-r--r--arch/arm/plat-omap/mcbsp.c6
2 files changed, 5 insertions, 4 deletions
diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h
index 0fad63c7df18..648344a89a94 100644
--- a/arch/arm/plat-omap/include/plat/mcbsp.h
+++ b/arch/arm/plat-omap/include/plat/mcbsp.h
@@ -359,6 +359,7 @@ struct omap_mcbsp {
u16 max_tx_thres;
u16 max_rx_thres;
void *reg_cache;
+ int reg_cache_size;
};
/**
@@ -370,7 +371,7 @@ struct omap_mcbsp_dev_attr {
};
extern struct omap_mcbsp **mcbsp_ptr;
-extern int omap_mcbsp_count, omap_mcbsp_cache_size;
+extern int omap_mcbsp_count;
#define omap_mcbsp_check_valid_id(id) (id < omap_mcbsp_count)
#define id_to_mcbsp_ptr(id) mcbsp_ptr[id];
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 234ab16e8399..3ad536ea6c37 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -31,7 +31,7 @@
#include "../mach-omap2/cm-regbits-34xx.h"
struct omap_mcbsp **mcbsp_ptr;
-int omap_mcbsp_count, omap_mcbsp_cache_size;
+int omap_mcbsp_count;
static void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
{
@@ -678,7 +678,7 @@ int omap_mcbsp_request(unsigned int id)
}
mcbsp = id_to_mcbsp_ptr(id);
- reg_cache = kzalloc(omap_mcbsp_cache_size, GFP_KERNEL);
+ reg_cache = kzalloc(mcbsp->reg_cache_size, GFP_KERNEL);
if (!reg_cache) {
return -ENOMEM;
}
@@ -1225,7 +1225,7 @@ static int __devinit omap_mcbsp_probe(struct platform_device *pdev)
}
}
mcbsp->phys_base = res->start;
- omap_mcbsp_cache_size = resource_size(res);
+ mcbsp->reg_cache_size = resource_size(res);
mcbsp->io_base = ioremap(res->start, resource_size(res));
if (!mcbsp->io_base) {
ret = -ENOMEM;