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H A D | goodix.c | ae97fb58 Wed Apr 03 17:20:26 CDT 2019 Jagan Teki <jagan@amarulasolutions.com> Input: goodix - add regulators suppot
Goodix CTP controllers require AVDD28, VDDIO regulators for power-on sequence.
The delay between these regualtor operations as per Power-on Timing from datasheet[1] is 0 (T1 >= 0 usec).
So, enable and disable these regulators in proper order using normal regulator functions without any delay in between.
[1] GT5663 Datasheet_English_20151106_Rev.01
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> ae97fb58 Wed Apr 03 17:20:26 CDT 2019 Jagan Teki <jagan@amarulasolutions.com> Input: goodix - add regulators suppot Goodix CTP controllers require AVDD28, VDDIO regulators for power-on sequence. The delay between these regualtor operations as per Power-on Timing from datasheet[1] is 0 (T1 >= 0 usec). So, enable and disable these regulators in proper order using normal regulator functions without any delay in between. [1] GT5663 Datasheet_English_20151106_Rev.01 Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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