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Message-ID: <B567DBAB974C0544994013492B949F8E3812CD364F@EXMAIL03.scwf.nsc.com> Date: Fri, 20 Jan 2012 09:30:36 -0800 From: "Kim, Milo" <Milo.Kim@...com> To: "Lars-Peter Clausen" <lars@...afoo.de> cc: "Linus Walleij" <linus.walleij@...aro.org>, "shreshthakumar.sahu@...ricsson.com" <shreshthakumar.sahu@...ricsson.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "rpurdie@...ys.net" <rpurdie@...ys.net> Subject: RE: [PATCH 7/7] leds-lm3530: enhanced arithmetic operation >> The reason why dividing by two is only 7-bits of brightness value in the LM3530 register. >> >> Bit7 | bit6 | bit5 | bit4 | bit3 | bit2 | bit1 | bit0 >> ------------------------------------------------------ >> N/A | LED Brightness Data (Bits[6:0]) >> ------------------------------------------------------ >> >> So maximum value is limited to 127. > So the max_brightness property of your led should be set to 127. That's good point. Thanks a lot ! Additional patch needs for this. Best Regards, Milo - -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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