[media] v4l: omap4iss: Enhance IRQ debugging

Add a pretty print function for ISP IRQs and remove the _INT suffix from
interrupt names to enhance readability.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index 815b09b991eba83554449e4fe363dd299fc8fcb0..65a16803949f01d2898968c49ff6e0c9d276eed5 100644 (file)
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -197,43 +197,44 @@ void omap4iss_configure_bridge(struct iss_device *iss,
        writel(isp5ctrl_val, iss->regs[OMAP4_ISS_MEM_ISP_SYS1] + ISP5_CTRL);
 }
 
+#if defined(DEBUG) && defined(ISS_ISR_DEBUG)
 static inline void iss_isr_dbg(struct iss_device *iss, u32 irqstatus)
 {
-       static const char *name[] = {
-               "ISP_IRQ0",
-               "ISP_IRQ1",
-               "ISP_IRQ2",
-               "ISP_IRQ3",
-               "CSIA_IRQ",
-               "CSIB_IRQ",
-               "CCP2_IRQ0",
-               "CCP2_IRQ1",
-               "CCP2_IRQ2",
-               "CCP2_IRQ3",
-               "CBUFF_IRQ",
-               "BTE_IRQ",
-               "SIMCOP_IRQ0",
-               "SIMCOP_IRQ1",
-               "SIMCOP_IRQ2",
-               "SIMCOP_IRQ3",
-               "CCP2_IRQ8",
-               "HS_VS_IRQ",
-               "res18",
-               "res19",
-               "res20",
-               "res21",
-               "res22",
-               "res23",
-               "res24",
-               "res25",
-               "res26",
-               "res27",
-               "res28",
-               "res29",
-               "res30",
-               "res31",
+       static const char * const name[] = {
+               "ISP_0",
+               "ISP_1",
+               "ISP_2",
+               "ISP_3",
+               "CSIA",
+               "CSIB",
+               "CCP2_0",
+               "CCP2_1",
+               "CCP2_2",
+               "CCP2_3",
+               "CBUFF",
+               "BTE",
+               "SIMCOP_0",
+               "SIMCOP_1",
+               "SIMCOP_2",
+               "SIMCOP_3",
+               "CCP2_8",
+               "HS_VS",
+               "18",
+               "19",
+               "20",
+               "21",
+               "22",
+               "23",
+               "24",
+               "25",
+               "26",
+               "27",
+               "28",
+               "29",
+               "30",
+               "31",
        };
-       int i;
+       unsigned int i;
 
        dev_dbg(iss->dev, "ISS IRQ: ");
 
@@ -244,6 +245,54 @@ static inline void iss_isr_dbg(struct iss_device *iss, u32 irqstatus)
        pr_cont("\n");
 }
 
+static inline void iss_isp_isr_dbg(struct iss_device *iss, u32 irqstatus)
+{
+       static const char * const name[] = {
+               "ISIF_0",
+               "ISIF_1",
+               "ISIF_2",
+               "ISIF_3",
+               "IPIPEREQ",
+               "IPIPELAST_PIX",
+               "IPIPEDMA",
+               "IPIPEBSC",
+               "IPIPEHST",
+               "IPIPEIF",
+               "AEW",
+               "AF",
+               "H3A",
+               "RSZ_REG",
+               "RSZ_LAST_PIX",
+               "RSZ_DMA",
+               "RSZ_CYC_RZA",
+               "RSZ_CYC_RZB",
+               "RSZ_FIFO_OVF",
+               "RSZ_FIFO_IN_BLK_ERR",
+               "20",
+               "21",
+               "RSZ_EOF0",
+               "RSZ_EOF1",
+               "H3A_EOF",
+               "IPIPE_EOF",
+               "26",
+               "IPIPE_DPC_INI",
+               "IPIPE_DPC_RNEW0",
+               "IPIPE_DPC_RNEW1",
+               "30",
+               "OCP_ERR",
+       };
+       unsigned int i;
+
+       dev_dbg(iss->dev, "ISP IRQ: ");
+
+       for (i = 0; i < ARRAY_SIZE(name); i++) {
+               if ((1 << i) & irqstatus)
+                       pr_cont("%s ", name[i]);
+       }
+       pr_cont("\n");
+}
+#endif
+
 /*
  * iss_isr - Interrupt Service Routine for ISS module.
  * @irq: Not used currently.
@@ -290,6 +339,10 @@ static irqreturn_t iss_isr(int irq, void *_iss)
                if (isp_irqstatus & resizer_events)
                        omap4iss_resizer_isr(&iss->resizer,
                                             isp_irqstatus & resizer_events);
+
+#if defined(DEBUG) && defined(ISS_ISR_DEBUG)
+               iss_isp_isr_dbg(iss, isp_irqstatus);
+#endif
        }
 
        omap4iss_flush(iss);