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intel_xpower_pmic_update_power() does a read-modify-write of the output control register. The i2c-designware code blocks the P-Unit I2C access during the read and write by taking the P-Unit's PMIC bus semaphore. But between the read and the write that semaphore is released and the P-Unit could make changes to the register which we then end up overwriting. This commit makes intel_xpower_pmic_update_power() take the semaphore itself so that it is held over the entire read-modify-write, avoiding this race. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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| .. | ||
| intel_pmic_bxtwc.c | ||
| intel_pmic_chtdc_ti.c | ||
| intel_pmic_chtwc.c | ||
| intel_pmic_crc.c | ||
| intel_pmic_xpower.c | ||
| intel_pmic.c | ||
| intel_pmic.h | ||
| tps68470_pmic.c | ||