October 2017
Intermediate to advanced
586 pages
14h 8m
English
Content preview from Linux Device Drivers Development
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Feeding init data into a board file
This method consists of filling an array of constraints, either from within the driver, or in the board file, and using it as part of the platform data. The following is the sample based on the device from a case study, the ISL6271A from Intersil:
static struct regulator_init_data isl_init_data[] = { [0] = { .constraints = { .name = "Core Buck", .min_uV = 850000, .max_uV = 1600000, .valid_modes_mask = REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY, .valid_ops_mask = REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS, }, }, [1] = { .constraints = { .name = "LDO1", .min_uV = 1100000, .max_uV = 1100000, .always_on = true, .valid_modes_mask = REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY, .valid_ops_mask = REGULATOR_CHANGE_MODE ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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