From: Axel Lin Date: Wed, 2 Oct 2013 12:47:56 +0000 (+0800) Subject: regulator: as3722: Fix equation to calculate max_uV in regulator_lin_range macro X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~16^2~21^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43f6fc9542d6c42cc2e5783536ed31d90516c999;p=pandora-kernel.git regulator: as3722: Fix equation to calculate max_uV in regulator_lin_range macro Fix off-by-one in the equation to calculate max_uV and also adjust the _min_uV setting accordingly. For LDOs: The voltage select bits set the LDO output voltage 0.825V...3.3V, 25mV steps ....00h : LDO off 01h-24h : V_LDO4 = 0.8V + ldo4_vsel * 25mV = 0.825V + (ldo4_vsel - 1h) * 25mV 25h-3Fh : do not use 40h-7Fh : V_LDO4 = 1.725V + (ldo4_vsel - 40h) * 25mV For SD2345: The voltage select bits set the DC/DC output voltage level and power the DC/DC converter down. ....00h : DC/DC powered down 01h-40h : V_SD2 = 0.6V + sd2_vsel * 12.5mV = 0.6125V + (sd2_vsel - 1h) * 12.5mV 41h-70h : V_SD2 = 1.4V + (sd2_vsel - 40h) * 25mV = 1.425V + (sd2_vsel - 41h) * 25mV 71h-7Fh : V_SD2 = 2.6V + (sd2_vsel - 70h) * 50mV = 2.65V + (sd2_vsel - 71h) * 50mV Note, the third entry in as3722_sd2345_ranges is wrong in current code. Fix it based on the datasheet. Signed-off-by: Axel Lin Acked-by: Laxman Dewangan Signed-off-by: Mark Brown --- Reading git-diff-tree failed