diff options
Diffstat (limited to 'drivers/memory/tegra/tegra186.c')
| -rw-r--r-- | drivers/memory/tegra/tegra186.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c index 533f85a4b2bd..0ff014a9d3cd 100644 --- a/drivers/memory/tegra/tegra186.c +++ b/drivers/memory/tegra/tegra186.c @@ -75,6 +75,9 @@ static void tegra186_mc_client_sid_override(struct tegra_mc *mc, { u32 value, old; + if (client->regs.sid.security == 0 && client->regs.sid.override == 0) + return; + value = readl(mc->regs + client->regs.sid.security); if ((value & MC_SID_STREAMID_SECURITY_OVERRIDE) == 0) { /* @@ -136,9 +139,25 @@ static int tegra186_mc_probe_device(struct tegra_mc *mc, struct device *dev) return 0; } +static int tegra186_mc_resume(struct tegra_mc *mc) +{ +#if IS_ENABLED(CONFIG_IOMMU_API) + unsigned int i; + + for (i = 0; i < mc->soc->num_clients; i++) { + const struct tegra_mc_client *client = &mc->soc->clients[i]; + + tegra186_mc_client_sid_override(mc, client, client->sid); + } +#endif + + return 0; +} + const struct tegra_mc_ops tegra186_mc_ops = { .probe = tegra186_mc_probe, .remove = tegra186_mc_remove, + .resume = tegra186_mc_resume, .probe_device = tegra186_mc_probe_device, .handle_irq = tegra30_mc_handle_irq, }; |