From: Axel Lin Date: Tue, 30 Jul 2013 02:46:28 +0000 (+0800) Subject: regulator: pfuze100: Fix n_voltages setting for SW2~SW4 with high bit set X-Git-Tag: v3.12-rc1~191^2~4^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9493234e20e8153495fa118b60bdff22fdfc6c8;p=pandora-kernel.git regulator: pfuze100: Fix n_voltages setting for SW2~SW4 with high bit set Current code adjust min_uV and uV_step but missed adjusting the n_voltages setting. When BIT6 is clear: n_voltages = (1975000 - 400000) / 25000 + 1 = 64 When BIT6 is set: n_voltages = (3300000 - 800000) / 50000 + 1 = 51 The n_voltages needs update because when BIT6 is set 0x73 ~ 0x7f are reserved. When using regulator_list_voltage_linear, the n_voltages does matter here because wrong n_voltages setting make the equation return wrong result. e.g. if selector is 63, regulator_list_voltage_linear returns 800000 + (50000 * 63) = 4000000 It should return -EINVAL if the selector is in the range of 51 ~ 63. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- Reading git-diff-tree failed