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[ Upstream commit 248efcf00602f0282587999bcc221a872bd72530 ] In order for the MSB -> LSB latching to work correctly we must read the 2 8 bit registers of a 12 bit value in one consecutive read. This fixes voltage_ocv reporting inconsistent values on my tablet. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>