diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/devfreq/tegra30-devfreq.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c index 8b57194ac698..401aac6a9f07 100644 --- a/drivers/devfreq/tegra30-devfreq.c +++ b/drivers/devfreq/tegra30-devfreq.c @@ -941,16 +941,22 @@ static int tegra_devfreq_probe(struct platform_device *pdev) return 0; } +/* + * The activity counter is incremented every 256 memory transactions. However, + * the number of clock cycles required for each transaction varies across + * different SoC generations. For instance, a single transaction takes 2 EMC + * clocks on Tegra30, 1 EMC clock on Tegra114, and 4 EMC clocks on Tegra124. + */ static const struct tegra_devfreq_soc_data tegra124_soc = { .configs = tegra124_device_configs, - - /* - * Activity counter is incremented every 256 memory transactions, - * and each transaction takes 4 EMC clocks. - */ .count_weight = 4 * 256, }; +static const struct tegra_devfreq_soc_data tegra114_soc = { + .configs = tegra124_device_configs, + .count_weight = 256, +}; + static const struct tegra_devfreq_soc_data tegra30_soc = { .configs = tegra30_device_configs, .count_weight = 2 * 256, @@ -958,6 +964,7 @@ static const struct tegra_devfreq_soc_data tegra30_soc = { static const struct of_device_id tegra_devfreq_of_match[] = { { .compatible = "nvidia,tegra30-actmon", .data = &tegra30_soc, }, + { .compatible = "nvidia,tegra114-actmon", .data = &tegra114_soc, }, { .compatible = "nvidia,tegra124-actmon", .data = &tegra124_soc, }, { }, }; |