mmc: msm_sdcc: print sdcc device runtime PM information
When SDCC driver encounters errors, print the sdcc device
runtime PM status information as well. This will help debug
any issues with SDCC runtime PM.
Change-Id: I6d07d6b40ba738ac6f42b56a101f62e3db0cf4b0
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 5040fc8..254f710 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -2830,6 +2830,20 @@
}
#ifdef CONFIG_PM_RUNTIME
+static void msmsdcc_print_rpm_info(struct msmsdcc_host *host)
+{
+ struct device *dev = mmc_dev(host->mmc);
+
+ pr_info("%s: RPM: runtime_status=%d, usage_count=%d,"
+ " is_suspended=%d, disable_depth=%d, runtime_error=%d,"
+ " request_pending=%d, request=%d\n",
+ mmc_hostname(host->mmc), dev->power.runtime_status,
+ atomic_read(&dev->power.usage_count),
+ dev->power.is_suspended, dev->power.disable_depth,
+ dev->power.runtime_error, dev->power.request_pending,
+ dev->power.request);
+}
+
static int msmsdcc_enable(struct mmc_host *mmc)
{
int rc = 0;
@@ -2862,6 +2876,7 @@
if (rc < 0) {
pr_info("%s: %s: failed with error %d", mmc_hostname(mmc),
__func__, rc);
+ msmsdcc_print_rpm_info(host);
return rc;
}
@@ -2892,12 +2907,15 @@
if (rc < 0 && (rc != -EAGAIN)) {
pr_info("%s: %s: failed with error %d", mmc_hostname(mmc),
__func__, rc);
+ msmsdcc_print_rpm_info(host);
return rc;
}
return 0;
}
#else
+static void msmsdcc_print_rpm_info(struct msmsdcc_host *host) {}
+
static int msmsdcc_enable(struct mmc_host *mmc)
{
struct device *dev = mmc->parent;
@@ -4153,7 +4171,7 @@
mmc_hostname(host->mmc), host->dma.busy,
host->dma.channel, host->dma.crci);
else if (host->is_sps_mode) {
- if (host->sps.busy)
+ if (host->sps.busy && host->clks_on)
msmsdcc_print_regs("SDCC-DML", host->dml_base,
host->dml_memres->start,
16);
@@ -4171,6 +4189,7 @@
mmc_hostname(host->mmc), host->curr.got_dataend,
host->prog_enable, host->curr.wait_for_auto_prog_done,
host->curr.got_auto_prog_done);
+ msmsdcc_print_rpm_info(host);
}
static void msmsdcc_req_tout_timer_hdlr(unsigned long data)