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sh: Move IRQ multi definition of DMAC to defconfig 

When SuperH CPU has IRQ multi of DMAC, SH_DMA_IRQ_MULTI becomes enable.
The following CPU's are Multi IRQ of DMAC now.
 - SH775X and SH7091
 - SH776X
 - SH7780
 - SH7785

If SH_DMA_IRQ_MULTI becomes enable, dma-sh api driver is optimized
for Multi IRQ.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Nobuhiro Iwamatsu 2009-03-16 03:22:07 +00:00 committed by Paul Mundt
parent 50cca715a6
commit 988f831df3
2 changed files with 13 additions and 12 deletions
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8
arch/sh/drivers/dma/Kconfig
View File

@ -9,6 +9,14 @@ config SH_DMA
select SH_DMA_API
default n
config SH_DMA_IRQ_MULTI
bool
depends on SH_DMA
default y if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \
CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
CPU_SUBTYPE_SH7091 || CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7764 || \
CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
config NR_ONCHIP_DMA_CHANNELS
int
depends on SH_DMA

17
arch/sh/drivers/dma/dma-sh.c
View File

@ -19,13 +19,6 @@
#include <asm/io.h>
#include <asm/dma-sh.h>
#if defined(CONFIG_CPU_SUBTYPE_SH7763) || \
defined(CONFIG_CPU_SUBTYPE_SH7764) || \
defined(CONFIG_CPU_SUBTYPE_SH7780) || \
defined(CONFIG_CPU_SUBTYPE_SH7785)
#define DMAC_IRQ_MULTI 1
#endif
#if defined(DMAE1_IRQ)
#define NR_DMAE 2
#else
@ -42,7 +35,7 @@ static inline unsigned int get_dmte_irq(unsigned int chan)
if (chan < ARRAY_SIZE(dmte_irq_map))
irq = dmte_irq_map[chan];
#if defined(DMAC_IRQ_MULTI)
#if defined(CONFIG_SH_DMA_IRQ_MULTI)
if (irq > DMTE6_IRQ)
return DMTE6_IRQ;
return DMTE0_IRQ;
@ -96,7 +89,7 @@ static int sh_dmac_request_dma(struct dma_channel *chan)
return 0;
return request_irq(get_dmte_irq(chan->chan), dma_tei,
#if defined(DMAC_IRQ_MULTI)
#if defined(CONFIG_SH_DMA_IRQ_MULTI)
IRQF_SHARED,
#else
IRQF_DISABLED,
@ -235,7 +228,7 @@ static inline int dmaor_reset(int no)
#if defined(CONFIG_CPU_SH4)
static irqreturn_t dma_err(int irq, void *dummy)
{
#if defined(DMAC_IRQ_MULTI)
#if defined(CONFIG_SH_DMA_IRQ_MULTI)
int cnt = 0;
switch (irq) {
#if defined(DMTE6_IRQ) && defined(DMAE1_IRQ)
@ -283,7 +276,7 @@ static struct dma_info sh_dmac_info = {
#ifdef CONFIG_CPU_SH4
static unsigned int get_dma_error_irq(int n)
{
#if defined(DMAC_IRQ_MULTI)
#if defined(CONFIG_SH_DMA_IRQ_MULTI)
return (n == 0) ? get_dmte_irq(0) : get_dmte_irq(6);
#else
return (n == 0) ? DMAE0_IRQ :
@ -306,7 +299,7 @@ static int __init sh_dmac_init(void)
for (n = 0; n < NR_DMAE; n++) {
i = request_irq(get_dma_error_irq(n), dma_err,
#if defined(DMAC_IRQ_MULTI)
#if defined(CONFIG_SH_DMA_IRQ_MULTI)
IRQF_SHARED,
#else
IRQF_DISABLED,