user/sven/linux.git/drivers/devfreq, 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: Don't fail devfreq_dev_release if not in list

2020-01-12T10:22:37Z

[ Upstream commit 42a6b25e67df6ee6675e8d1eaf18065bd73328ba ] Right now devfreq_dev_release will print a warning and abort the rest of the cleanup if the devfreq instance is not part of the global devfreq_list. But this is a valid scenario, for example it can happen if the governor can't be found or on any other init error that happens after device_register. Initialize devfreq->node to an empty list head in devfreq_add_device so that list_del becomes a safe noop inside devfreq_dev_release and we can continue the rest of the cleanup. Signed-off-by: Leonard Crestez Reviewed-by: Matthias Kaehlcke Reviewed-by: Chanwoo Choi 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: Propagate error from devfreq_add_device()

2018-02-22T14:44:58Z

commit d1bf2d30728f310f72296b54f0651ecdb09cbb12 upstream. Propagate the error of devfreq_add_device() in devm_devfreq_add_device() rather than statically returning ENOMEM. This makes it slightly faster to pinpoint the cause of a returned error. Fixes: 8cd84092d35e ("PM / devfreq: Add resource-managed function for devfreq device") Cc: stable@vger.kernel.org Acked-by: Chanwoo Choi Signed-off-by: Bjorn Andersson Signed-off-by: MyungJoo Ham Signed-off-by: Greg Kroah-Hartman

PM / devfreq: fix double kfree

2015-10-02T02:05:58Z

When device_register() fails, kfree(devfreq) is called already in devfreq_dev_release(), hence there is no need to call kfree(devfreq) in err_dev again. Signed-off-by: Geliang Tang Signed-off-by: MyungJoo Ham

PM / devfreq: Fix governor_store()

2015-09-30T05:16:31Z

Writing the currently set governor into sysfs currently seems to fail. Fix this by setting the return code to zero before leaving governor_store(). Signed-off-by: Tobias Jakobi Signed-off-by: MyungJoo Ham

PM / devfreq: Fix incorrect type issue.

2015-09-11T05:23:30Z

time_in_state in struct devfreq is defined as unsigned long, so devm_kzalloc should use sizeof(unsigned long) as argument instead of sizeof(unsigned int), otherwise it will cause unexpected result in 64bit system. Signed-off-by: Xiaolong Ye Signed-off-by: Kevin Liu Signed-off-by: MyungJoo Ham

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: drop comment about thermal setting max_freq

2015-09-11T05:23:29Z

The thermal infrastructure should use the devfreq cooling device, which uses the OPP library to disable OPPs as necessary. Fix a couple of typos in the same comment while we are at it. Signed-off-by: Javi Merino Signed-off-by: MyungJoo Ham

PM / devfreq: cache the last call to get_dev_status()

2015-09-11T05:23:28Z

The return value of get_dev_status() can be reused. Cache it so that other parts of the kernel can reuse it instead of having to call the same function again. Cc: Kyungmin Park Signed-off-by: Javi Merino Signed-off-by: MyungJoo Ham