On Mon, Mar 2, 2015 at 6:21 PM, Pavel Machek <pavel@xxxxxx> wrote: > On Wed 2015-02-25 18:06:07, Alexandre Courbot wrote: >> On Wed, Feb 25, 2015 at 5:25 PM, Geert Uytterhoeven >> <geert@xxxxxxxxxxxxxx> wrote: >> > CC linux-gpio, as this looks like the LED equivalent of bulk gpio? >> >> Indeed. The LED core could implement something similar to >> gpiod_set_array() to allow several LEDs to be set in one call. If the >> controller supports it, it would then set all the LEDs at once, >> otherwise the core would apply the values serially. >> >> In leds-gpio.c, this multiple LED setting could be implemented by a >> single call to gpiod_set_array() and the right thing would happen. > > Actually, there are two issues: some controlles can set all LEDs at > once, and some can program pwm level smoothly using given program (and > handle multiple leds in the process). In any case, that would be handled at the controller level and should work with a function similar to gpiod_set_array(), wouldn't it? -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
