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dmaengine: ipu: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc 

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

This is also a preparation for the removal of the 'irq' argument from
interrupt flow handlers.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: dmaengine@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Jiang Liu 2015-07-13 20:39:54 +00:00 committed by Vinod Koul
parent d7fdb35690
commit 4d9efdfce7
2 changed files with 3 additions and 3 deletions
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2
drivers/dma/ipu/ipu_irq.c
View File

@ -268,7 +268,7 @@ int ipu_irq_unmap(unsigned int source)
/* Chained IRQ handler for IPU error interrupt */
static void ipu_irq_err(unsigned int irq, struct irq_desc *desc)
{
struct ipu *ipu = irq_get_handler_data(irq);
struct ipu *ipu = irq_desc_get_handler_data(desc);
u32 status;
int i, line;

4
drivers/gpu/ipu-v3/ipu-common.c
View File

@ -915,8 +915,8 @@ static void ipu_irq_handle(struct ipu_soc *ipu, const int *regs, int num_regs)
static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
{
struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
const int int_reg[] = { 0, 1, 2, 3, 10, 11, 12, 13, 14};
struct irq_chip *chip = irq_get_chip(irq);
chained_irq_enter(chip, desc);
@ -928,8 +928,8 @@ static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
static void ipu_err_irq_handler(unsigned int irq, struct irq_desc *desc)
{
struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
const int int_reg[] = { 4, 5, 8, 9};
struct irq_chip *chip = irq_get_chip(irq);
chained_irq_enter(chip, desc);