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    SubjectRe: [PATCH v8 0/9] Multicolor FW v8 update
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    On 9/20/19 10:41 AM, Dan Murphy wrote:
    > Hello
    >
    > Per request I removed the ops structure. But there is a potential need for some
    > device drivers to have a call back that sets the intesity of the LED color
    > without modifying the hardware register. The hardware registers are only updated
    > when the brightness_set<op> is called. The need arises with the LP50xx chip
    > series where the chip has 2 control knobs to modify the output current to the
    > LED. In most cases drivers only have a single brightness register for a given
    > iOUT pin. But the LP50xx has a brightness register that controls cluster
    > brightness and individual registers to control the monochrome LED intensity.
    >
    > The set_color_brightness call back has been simplified in the LP50xx device
    > driver so that it can cache the LED intensity in it's stack for a specific color
    > as opposed to having to call back into the MC FW for the current intensity which
    > made the driver complex.

    "FW" historically means either firmware or firewire.
    Please spell out framework in the future.

    > Once the set_brightness<op> is called the driver can set the brightness and then
    > set the LED intensity registers if the driver has that ability.
    >
    > Dan
    >
    > Dan Murphy (9):
    > leds: multicolor: Add sysfs interface definition
    > documention: leds: Add multicolor class documentation
    > dt: bindings: Add multicolor class dt bindings documention
    > dt-bindings: leds: Add multicolor ID to the color ID list
    > leds: Add multicolor ID to the color ID list
    > leds: multicolor: Introduce a multicolor class definition
    > dt: bindings: lp50xx: Introduce the lp50xx family of RGB drivers
    > leds: lp50xx: Add the LP50XX family of the RGB LED driver
    > leds: Update the lp55xx to use the multi color framework


    Thanks.
    --
    ~Randy

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