From: Andreas Fenkart <andreas.fenk...@dev.digitalstrom.org>
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>
---
drivers/mmc/host/omap_hsmmc.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index e880b44..19c0aa5 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -81,6 +81,7 @@ static void apply_clk_hack(struct device *dev)
#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
@@ -1800,6 +1801,23 @@ 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);
+ unsigned long flags;
+ bool suspended;
+
+ spin_lock_irqsave(&host->irq_lock, flags);
+ seq_printf(s, "\n");
+ seq_printf(s, "sdio irq\t%s\n", ((host->flags & HSMMC_SDIO_IRQ_ENABLED)
+ ? "enabled" : "disabled"));
+ suspended = host->dev->power.runtime_status != RPM_ACTIVE;
+ if (host->flags & HSMMC_SWAKEUP_QUIRK) {
+ seq_printf(s, "pinmux config\t%s\n", (suspended ?
+ "gpio" : "sdio"));
+ if (suspended)
+ seq_printf(s, "sdio irq pin\t%s\n",
+ gpio_get_value(mmc_slot(host).gpio_cirq) ?
+ "high" : "low");
+ }
+ spin_unlock_irqrestore(&host->irq_lock, flags);
if (host->suspended) {
seq_printf(s, "host suspended, can't read registers\n");
@@ -1807,9 +1825,11 @@ static int omap_hsmmc_regs_show(struct seq_file *s, void
*data)
}
pm_runtime_get_sync(host->dev);
-
+ seq_printf(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",
--
1.7.10.4
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