* [PATCH v2] OMAP4: dma: Correct CPU version check for dma_common_ch_end
@ 2012-02-23 7:44 Peter Ujfalusi
2012-02-28 22:37 ` Tony Lindgren
0 siblings, 1 reply; 2+ messages in thread
From: Peter Ujfalusi @ 2012-02-23 7:44 UTC (permalink / raw)
To: Tony Lindgren; +Cc: linux-omap
CCDN is the last common channel register in all OMAP4 versions. Use
cpu_is_omap44xx() instead of the cpu_is_omap4430().
cpu_is_omap4430() returns 0 unconditionally. This causes that the
dma_common_ch_end register variable is not configured correctly on OMAP4, not
even for OMAP4430.
Because of this, registers between CCFN - CCDN will be not cleard in the
omap2_clear_dma function in OMAP4.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
arch/arm/mach-omap2/dma.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index a59a45a..b19d849 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -227,7 +227,7 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
dma_stride = OMAP2_DMA_STRIDE;
dma_common_ch_start = CSDP;
- if (cpu_is_omap3630() || cpu_is_omap4430())
+ if (cpu_is_omap3630() || cpu_is_omap44xx())
dma_common_ch_end = CCDN;
else
dma_common_ch_end = CCFN;
--
1.7.8.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] OMAP4: dma: Correct CPU version check for dma_common_ch_end
2012-02-23 7:44 [PATCH v2] OMAP4: dma: Correct CPU version check for dma_common_ch_end Peter Ujfalusi
@ 2012-02-28 22:37 ` Tony Lindgren
0 siblings, 0 replies; 2+ messages in thread
From: Tony Lindgren @ 2012-02-28 22:37 UTC (permalink / raw)
To: Peter Ujfalusi; +Cc: linux-omap
* Peter Ujfalusi <peter.ujfalusi@ti.com> [120222 23:13]:
> CCDN is the last common channel register in all OMAP4 versions. Use
> cpu_is_omap44xx() instead of the cpu_is_omap4430().
> cpu_is_omap4430() returns 0 unconditionally. This causes that the
> dma_common_ch_end register variable is not configured correctly on OMAP4, not
> even for OMAP4430.
> Because of this, registers between CCFN - CCDN will be not cleard in the
> omap2_clear_dma function in OMAP4.
Thanks applying into fixes-non-critical as discussed for the earlier
version of this patch.
Regards,
Tony
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-02-23 7:44 [PATCH v2] OMAP4: dma: Correct CPU version check for dma_common_ch_end Peter Ujfalusi
2012-02-28 22:37 ` Tony Lindgren
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