user/sven/linux.git/drivers/devfreq/tegra-devfreq.c, branch v4.4.261

PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out

2020-10-01T09:11:50Z

[ Upstream commit 53b4b2aeee26f42cde5ff2a16dd0d8590c51a55a ] There is another kHz-conversion bug in the code, resulting in integer overflow. Although, this time the resulting value is 4294966296 and it's close to ULONG_MAX, which is okay in this case. Reviewed-by: Chanwoo Choi Tested-by: Peter Geis Signed-off-by: Dmitry Osipenko Signed-off-by: Chanwoo Choi Signed-off-by: Sasha Levin

PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()

2018-11-10T15:41:40Z

[ Upstream commit 9e578b37505018622dfafc40eed7cd78ff2af221 ] platform_get_irq() returns an error code, but the tegra-devfreq driver ignores it and always returns -ENODEV. This is not correct, and prevents -EPROBE_DEFER from being propagated properly. Notice that platform_get_irq() no longer returns 0 on error: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af Print and propagate the return value of platform_get_irq on failure. Reviewed-by: Chanwoo Choi Signed-off-by: Gustavo A. R. Silva Signed-off-by: MyungJoo Ham Signed-off-by: Sasha Levin

PM / devfreq: tegra: Update governor to use devfreq_update_stats()

2015-09-11T05:23:30Z

Direct invocation of get_dev_status() is no more recommended. Signed-off-by: MyungJoo Ham

PM / devfreq: tegra: Register governor on module init

2015-03-31T04:17:15Z

So this driver builds as a module. Signed-off-by: Tomeu Vizoso Signed-off-by: MyungJoo Ham

PM / devfreq: tegra: Enable interrupts after resuming the devfreq monitor

2015-03-31T04:17:15Z

Signed-off-by: Tomeu Vizoso Acked-by: MyungJoo Ham

PM / devfreq: tegra: Set drvdata before enabling the irq

2015-03-31T04:17:14Z

To avoid a race in which the interrupt will be handled before the drvdata has been set up. Signed-off-by: Tomeu Vizoso Acked-by: MyungJoo Ham

PM / devfreq: tegra: remove operating-points

2015-03-31T04:17:14Z

As the DT bindings don't have an operating-points property any more, build the OPP table from the frequencies supported by the EMC clock. Signed-off-by: Tomeu Vizoso Acked-by: MyungJoo Ham

PM / devfreq: tegra: Use clock rate constraints

2015-03-31T04:17:13Z

Now that we have per-user clocks and the possibility to set constraints in a clock, set a floor constraint on the EMC clock. Signed-off-by: Tomeu Vizoso Acked-by: MyungJoo Ham

PM / devfreq: tegra: Update to v5 of the submitted patches

2015-03-31T04:17:03Z

There seemed to be some miscommunication and an old version of the submitted patches was merged. This commit updates the driver to v5, which had this changelog: * Clarify the units of avg_dependency_threshold * Remove unused references to platform_device * Enable and disable interrupts on governor events * Make sure we handle all interrupts for any of the devices we are sampling * Move locking to be per-actmon-device Signed-off-by: Tomeu Vizoso CC: Alex Frid CC: Mikko Perttunen [Added const to device ID by MyungJoo] Signed-off-by: MyungJoo Ham

PM / devfreq: tegra: add devfreq driver for Tegra Activity Monitor

2015-01-29T12:25:48Z

The ACTMON block can monitor several counters, providing averaging and firing interrupts based on watermarking configuration. This implementation monitors the MCALL and MCCPU counters to choose an appropriate frequency for the external memory clock. This patch is based on work by Alex Frid and Mikko Perttunen . Signed-off-by: Tomeu Vizoso Signed-off-by: MyungJoo Ham