diff options
Diffstat (limited to 'drivers/memory/tegra/mc.c')
| -rw-r--r-- | drivers/memory/tegra/mc.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index 4a750da1c12a..67d6e70b4eab 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -11,7 +11,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> -#include <linux/of_device.h> +#include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/sort.h> @@ -755,6 +755,43 @@ const char *const tegra_mc_error_names[8] = { [6] = "SMMU translation error", }; +struct icc_node *tegra_mc_icc_xlate(struct of_phandle_args *spec, void *data) +{ + struct tegra_mc *mc = icc_provider_to_tegra_mc(data); + struct icc_node *node; + + list_for_each_entry(node, &mc->provider.nodes, node_list) { + if (node->id == spec->args[0]) + return node; + } + + /* + * If a client driver calls devm_of_icc_get() before the MC driver + * is probed, then return EPROBE_DEFER to the client driver. + */ + return ERR_PTR(-EPROBE_DEFER); +} + +static int tegra_mc_icc_get(struct icc_node *node, u32 *average, u32 *peak) +{ + *average = 0; + *peak = 0; + + return 0; +} + +static int tegra_mc_icc_set(struct icc_node *src, struct icc_node *dst) +{ + return 0; +} + +const struct tegra_mc_icc_ops tegra_mc_icc_ops = { + .xlate = tegra_mc_icc_xlate, + .aggregate = icc_std_aggregate, + .get_bw = tegra_mc_icc_get, + .set = tegra_mc_icc_set, +}; + /* * Memory Controller (MC) has few Memory Clients that are issuing memory * bandwidth allocation requests to the MC interconnect provider. The MC |