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>

2 files changed, 3 insertions, 3 deletions

diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index 8d36f07b5801..4357063980e1 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -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;
 
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 6d2f39d36e44..552178799062 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -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);