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authorAndreas Fenkart <afenkart@gmail.com>2014-05-29 10:28:01 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2014-07-09 11:26:04 +0200
commitbb0635f0b4d2bad44d315344527cfa2cd91f0f4f (patch)
tree68a049d7b5ea3214a67ba106101a356b58dbd447 /drivers/mmc
parentmmc: omap_hsmmc: Enable SDIO interrupt (diff)
downloadlinux-bb0635f0b4d2bad44d315344527cfa2cd91f0f4f.tar.xz
linux-bb0635f0b4d2bad44d315344527cfa2cd91f0f4f.zip
mmc: omap_hsmmc: Extend debugfs by SDIO IRQ handling, runtime state
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@gmail.com> Acked-by: Balaji T K <balajitk@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 9446010a5dd9..ad3a2acd3664 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",