High-precision brightness will set the brightness level from bl_min_level to
bl_max_level. If we enable 12bit brightness, in fact, the hardware will not
tolerate very low brightness such as level '1 - 9' in liberty, these levels
cause the backlight unstable.
So we have to define the minimum brightness by 'qcom,mdss-dsi-bl-min-level'
that the driver does not set the backlight level below that.
Change-Id: I0c1c76b959e33c2eaa551cd30875e05e983e5ecb
Signed-off-by: tanhua1 <tanhua1@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1583985
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Reviewed-by: Hua Tan <tanhua1@motorola.com>
Submit-Approved: Jira Key