[PATCH v2 3/4] leds: Add driver for the ISSI IS31FL32xx family of LED controllers

From: David Rivshin The IS31FL32xx family of LED controllers are I2C devices with multiple constant-current channels, each with independent 256-level PWM control. Datasheets: http://www.issi.com/US/product-analog-fxled-driver.shtml This has been tested on the IS31FL3236

[PATCH v2 3/4] leds: Add driver for the ISSI IS31FL32xx family of LED controllers

From: David Rivshin The IS31FL32xx family of LED controllers are I2C devices with multiple constant-current channels, each with independent 256-level PWM control. Datasheets: http://www.issi.com/US/product-analog-fxled-driver.shtml This has been tested on the IS31FL3236 and IS31FL3216, on an