Re: [PATCH v14 2/6] mmc: omap_hsmmc: Extend debugfs by SDIO IRQ handling, runtime state

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On Thursday 29 May 2014 01:58 PM, Andreas Fenkart wrote:
Add SDIO IRQ entries to debugfs entry. Note that PSTATE shows current
state of data lines, incl. SDIO IRQ pending

Signed-off-by: Andreas Fenkart <afenkart@xxxxxxxxx>

Thanks Andreas for fixing compilation with !CONFIG_PM[_RUNTIME],

Acked-by: Balaji T K <balajitk@xxxxxx>


diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 129569d..332d3d2 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -56,6 +56,7 @@
  #define OMAP_HSMMC_RSP54	0x0118
  #define OMAP_HSMMC_RSP76	0x011C
  #define OMAP_HSMMC_DATA		0x0120
+#define OMAP_HSMMC_PSTATE	0x0124
  #define OMAP_HSMMC_HCTL		0x0128
  #define OMAP_HSMMC_SYSCTL	0x012C
  #define OMAP_HSMMC_STAT		0x0130
@@ -1815,13 +1816,23 @@ static int omap_hsmmc_regs_show(struct seq_file *s, void *data)
  	struct mmc_host *mmc = s->private;
  	struct omap_hsmmc_host *host = mmc_priv(mmc);

-	seq_printf(s, "mmc%d:\n ctx_loss:\t%d\n\nregs:\n",
-			mmc->index, host->context_loss);
+	seq_printf(s, "mmc%d:\n", mmc->index);
+	seq_printf(s, "sdio irq mode\t%s\n",
+		   (mmc->caps & MMC_CAP_SDIO_IRQ) ? "interrupt" : "polling");

-	pm_runtime_get_sync(host->dev);
+	if (mmc->caps & MMC_CAP_SDIO_IRQ) {
+		seq_printf(s, "sdio irq \t%s\n",
+			   (host->flags & HSMMC_SDIO_IRQ_ENABLED) ?  "enabled"
+			   : "disabled");
+	}
+	seq_printf(s, "ctx_loss:\t%d\n", host->context_loss);

+	pm_runtime_get_sync(host->dev);
+	seq_puts(s, "\nregs:\n");
  	seq_printf(s, "CON:\t\t0x%08x\n",
  			OMAP_HSMMC_READ(host->base, CON));
+	seq_printf(s, "PSTATE:\t\t0x%08x\n",
+		   OMAP_HSMMC_READ(host->base, PSTATE));
  	seq_printf(s, "HCTL:\t\t0x%08x\n",
  			OMAP_HSMMC_READ(host->base, HCTL));
  	seq_printf(s, "SYSCTL:\t\t0x%08x\n",


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