From: Andreas Fenkart <afenk...@gmail.com>

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 <afenk...@gmail.com>
Signed-off-by: Tony Lindgren <t...@atomide.com>
Signed-off-by: Balaji T K <balaj...@ti.com>
---
 drivers/mmc/host/omap_hsmmc.c |   23 ++++++++++++++++++++---
 1 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index dc23ac7..2482783 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
@@ -1865,14 +1866,30 @@ 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);
+       const char *cirq_state;
+       bool suspended;
 
-       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);
+       if (mmc->caps & MMC_CAP_SDIO_IRQ)
+               cirq_state = (host->flags & HSMMC_SDIO_IRQ_ENABLED) ?
+                       "enabled" : "disabled";
+       else
+               cirq_state = "polling";
+       seq_printf(s, "sdio irq\t%s\n", cirq_state);
 
-       pm_runtime_get_sync(host->dev);
+       if (host->flags & HSMMC_SWAKEUP_QUIRK) {
+               suspended = host->dev->power.runtime_status != RPM_ACTIVE;
+               seq_printf(s, "pinmux config\t%s\n", (suspended ?
+                                                     "gpio" : "sdio"));
+       }
+       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",
-- 
1.7.5.4

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