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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 16:06:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 16:06:58 -0700
commit85082fd7cbe3173198aac0eb5e85ab1edcc6352c (patch)
treeedbc09b7945994f78668d218fa02e991c3b3b365 /arch/arm/mach-imx/dma.c
parent666484f0250db2e016948d63b3ef33e202e3b8d0 (diff)
parent53ffe3b440aa85af6fc4eda09b2d44bcdd312d4d (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (241 commits) [ARM] 5171/1: ep93xx: fix compilation of modules using clocks [ARM] 5133/2: at91sam9g20 defconfig file [ARM] 5130/4: Support for the at91sam9g20 [ARM] 5160/1: IOP3XX: gpio/gpiolib support [ARM] at91: Fix NAND FLASH timings for at91sam9x evaluation kits. [ARM] 5084/1: zylonite: Register AC97 device [ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model [ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers [ARM] 5147/1: pxaficp_ir: drop pxa_gpio_mode calls, as pin setting [ARM] 5145/1: PXA2xx: provide api to control IrDA pins state [ARM] 5144/1: pxaficp_ir: cleanup includes [ARM] pxa: remove pxa_set_cken() [ARM] pxa: allow clk aliases [ARM] Feroceon: don't disable BPU on boot [ARM] Orion: LED support for HP mv2120 [ARM] Orion: add RD88F5181L-FXO support [ARM] Orion: add RD88F5181L-GE support [ARM] Orion: add Netgear WNR854T support [ARM] s3c2410_defconfig: update for current build [ARM] Acer n30: Minor style and indentation fixes. ...
Diffstat (limited to 'arch/arm/mach-imx/dma.c')
-rw-r--r--arch/arm/mach-imx/dma.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/arm/mach-imx/dma.c b/arch/arm/mach-imx/dma.c
index a59ff2987cb..ee1c6f06ff6 100644
--- a/arch/arm/mach-imx/dma.c
+++ b/arch/arm/mach-imx/dma.c
@@ -410,7 +410,6 @@ void imx_dma_free(imx_dmach_t dma_ch)
/**
* imx_dma_request_by_prio - find and request some of free channels best suiting requested priority
- * @dma_ch: i.MX DMA channel number
* @name: the driver/caller own non-%NULL identification
* @prio: one of the hardware distinguished priority level:
* %DMA_PRIO_HIGH, %DMA_PRIO_MEDIUM, %DMA_PRIO_LOW
@@ -420,11 +419,9 @@ void imx_dma_free(imx_dmach_t dma_ch)
* in the higher and then even lower priority groups.
*
* Return value: If there is no free channel to allocate, -%ENODEV is returned.
- * Zero value indicates successful channel allocation.
+ * On successful allocation channel is returned.
*/
-int
-imx_dma_request_by_prio(imx_dmach_t * pdma_ch, const char *name,
- imx_dma_prio prio)
+imx_dmach_t imx_dma_request_by_prio(const char *name, imx_dma_prio prio)
{
int i;
int best;
@@ -444,15 +441,13 @@ imx_dma_request_by_prio(imx_dmach_t * pdma_ch, const char *name,
for (i = best; i < IMX_DMA_CHANNELS; i++) {
if (!imx_dma_request(i, name)) {
- *pdma_ch = i;
- return 0;
+ return i;
}
}
for (i = best - 1; i >= 0; i--) {
if (!imx_dma_request(i, name)) {
- *pdma_ch = i;
- return 0;
+ return i;
}
}