From: Andreas Fenkart <afenkart@xxxxxxxxx>
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>
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Balaji T K <balajitk@xxxxxx>
---
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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