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PM / devfreq: tegra30-devfreq: add support for Tegra114 

Lets add Tegra114 support to activity monitor device as a preparation to
upcoming EMC controller support.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: MyungJoo Ham <myungjoo.ham@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/lkml/20260126185423.77786-1-clamor95@gmail.com/
master
Svyatoslav Ryhel 2026-01-26 20:54:23 +02:00 committed by Chanwoo Choi
parent 943a872fe4
commit cd905830ea
1 changed files with 12 additions and 5 deletions
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17
drivers/devfreq/tegra30-devfreq.c
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@ -941,16 +941,22 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
return 0; 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 = { static const struct tegra_devfreq_soc_data tegra124_soc = {
.configs = tegra124_device_configs, .configs = tegra124_device_configs,
/*
* Activity counter is incremented every 256 memory transactions,
* and each transaction takes 4 EMC clocks.
*/
.count_weight = 4 * 256, .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 = { static const struct tegra_devfreq_soc_data tegra30_soc = {
.configs = tegra30_device_configs, .configs = tegra30_device_configs,
.count_weight = 2 * 256, .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[] = { static const struct of_device_id tegra_devfreq_of_match[] = {
{ .compatible = "nvidia,tegra30-actmon", .data = &tegra30_soc, }, { .compatible = "nvidia,tegra30-actmon", .data = &tegra30_soc, },
{ .compatible = "nvidia,tegra114-actmon", .data = &tegra114_soc, },
{ .compatible = "nvidia,tegra124-actmon", .data = &tegra124_soc, }, { .compatible = "nvidia,tegra124-actmon", .data = &tegra124_soc, },
{ }, { },
}; };