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authorMagnus Damm <damm@opensource.se>2011-06-09 02:35:08 -0400
committerPaul Mundt <lethal@linux-sh.org>2011-06-14 02:03:07 -0400
commitdcee0bb713d0ba0d32c5ce6fe0c5aa22e6fc274a (patch)
tree9405bd5a07f694ac53bea9f49adad2d5ad80c96a /drivers/dma
parent5bdbd4fa4df6891a6644d588c9a30d30e7c0af8e (diff)
dmaengine: shdma: SH_DMAC_MAX_CHANNELS message fix
Fix the recently added SH_DMAC_MAX_CHANNELS handling code in 300e5f9 dmaengine: shdma: Fix SH_DMAC_MAX_CHANNELS handling Without this fix the shdma driver outputs silly messages in case SH_DMAC_MAX_CHANNELS happens to match the platform data: sh-dma-engine sh-dma-engine.0: Attempting to register 20 DMA channels when a max imum of 20 are supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/shdma.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 2a638f9f09a2..028330044201 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -1221,6 +1221,11 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
1221 } else { 1221 } else {
1222 do { 1222 do {
1223 for (i = chanirq_res->start; i <= chanirq_res->end; i++) { 1223 for (i = chanirq_res->start; i <= chanirq_res->end; i++) {
1224 if (irq_cnt >= SH_DMAC_MAX_CHANNELS) {
1225 irq_cap = 1;
1226 break;
1227 }
1228
1224 if ((errirq_res->flags & IORESOURCE_BITS) == 1229 if ((errirq_res->flags & IORESOURCE_BITS) ==
1225 IORESOURCE_IRQ_SHAREABLE) 1230 IORESOURCE_IRQ_SHAREABLE)
1226 chan_flag[irq_cnt] = IRQF_SHARED; 1231 chan_flag[irq_cnt] = IRQF_SHARED;
@@ -1230,15 +1235,11 @@ static int __init sh_dmae_probe(struct platform_device *pdev)
1230 "Found IRQ %d for channel %d\n", 1235 "Found IRQ %d for channel %d\n",
1231 i, irq_cnt); 1236 i, irq_cnt);
1232 chan_irq[irq_cnt++] = i; 1237 chan_irq[irq_cnt++] = i;
1233
1234 if (irq_cnt >= SH_DMAC_MAX_CHANNELS)
1235 break;
1236 } 1238 }
1237 1239
1238 if (irq_cnt >= SH_DMAC_MAX_CHANNELS) { 1240 if (irq_cnt >= SH_DMAC_MAX_CHANNELS)
1239 irq_cap = 1;
1240 break; 1241 break;
1241 } 1242
1242 chanirq_res = platform_get_resource(pdev, 1243 chanirq_res = platform_get_resource(pdev,
1243 IORESOURCE_IRQ, ++irqres); 1244 IORESOURCE_IRQ, ++irqres);
1244 } while (irq_cnt < pdata->channel_num && chanirq_res); 1245 } while (irq_cnt < pdata->channel_num && chanirq_res);