During PMC probe, print previous reset related info
such as reset reason and reset level.
Signed-off-by: Petlozu Pravareshwar <petlozup@xxxxxxxxxx>
---
drivers/soc/tegra/pmc.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 34d36a28f7d6..dd98ea034149 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -2177,6 +2177,31 @@ static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc)
return 0;
}
+static void tegra_pmc_show_reset_status(void)
+{
+ u32 val, rst_src, rst_lvl;
+
+ val = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
+ rst_src = (val & pmc->soc->regs->rst_source_mask) >>
+ pmc->soc->regs->rst_source_shift;
+ rst_lvl = (val & pmc->soc->regs->rst_level_mask) >>
+ pmc->soc->regs->rst_level_shift;
+
+ if (rst_src >= pmc->soc->num_reset_sources)
+ dev_warn(pmc->dev, "reset source: UNKNOWN\n");
+ else if (pmc->soc->reset_sources[rst_src] == NULL)
+ dev_warn(pmc->dev, "reset source: UNUSED\n");
+ else
+ dev_info(pmc->dev, "reset source: %s\n",
+ pmc->soc->reset_sources[rst_src]);
+
+ if (rst_lvl >= pmc->soc->num_reset_levels)
+ dev_warn(pmc->dev, "reset level: UNKNOWN\n");
+ else
+ dev_info(pmc->dev, "reset level: %s\n",
+ pmc->soc->reset_levels[rst_lvl]);
+}
+
static ssize_t reset_reason_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -2979,6 +3004,8 @@ static int tegra_pmc_probe(struct platform_device *pdev)
tegra_pmc_init_tsense_reset(pmc);
+ tegra_pmc_show_reset_status();
+
tegra_pmc_reset_sysfs_init(pmc);
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
--
2.17.1
