Hi
On Mon, Nov 11, 2013 at 7:52 PM, <afenkart@xxxxxxxxx> wrote:
> 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>
> ---
> 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..34e2ee0 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);
Why do you need a spin_lock_irqsave just to print out the status?
> + seq_puts(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);
>
Michael
> 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_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",
> --
> 1.7.10.4
>
> --
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