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Subject[PATCH v1 23/30] memory: tegra30-emc: Support Tegra SoC device state syncing
Date
Sync driver state using the Tegra SoC device state syncing API, telling
to regulators voltage coupler that EMC state is ready for DVFS. This is
required for enabling system-wide DVFS on Tegra30.

Tested-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/memory/tegra/tegra30-emc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c
index 6b20ce9f16af..dd7474065346 100644
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@ -1666,6 +1666,12 @@ static int tegra_emc_resume(struct device *dev)
return 0;
}

+static void tegra_emc_sync_state(struct device *dev)
+{
+ tegra_soc_device_sync_state(dev);
+ icc_sync_state(dev);
+}
+
static const struct dev_pm_ops tegra_emc_pm_ops = {
.suspend = tegra_emc_suspend,
.resume = tegra_emc_resume,
@@ -1684,7 +1690,7 @@ static struct platform_driver tegra_emc_driver = {
.of_match_table = tegra_emc_of_match,
.pm = &tegra_emc_pm_ops,
.suppress_bind_attrs = true,
- .sync_state = icc_sync_state,
+ .sync_state = tegra_emc_sync_state,
},
};
module_platform_driver(tegra_emc_driver);
--
2.27.0
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