diff options
| author | Ujwal Patel <ujwalp@codeaurora.org> | 2013-08-07 21:52:15 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:19:56 -0700 |
| commit | 5338f4df646c71be7dc5c693dc25c19c4079f64b (patch) | |
| tree | bbb9b91d75b378bd936f3366ae60493d26a63cdb /Documentation | |
| parent | 5d546aa4e1fad084e3fe0e8f2aa2839a6acc4753 (diff) | |
msm: mdss: Add battery FET regulator usage
During idle power-collapse using smart-panel, when PMIC chip goes to
sleep, it puts battery FET (batfet) to low power mode (LPM) which allows
less than 100mA current to be drawn. Since smart-panel is in self-refresh
mode, it can still draw more than 100mA current causing PMIC and MSM
reset. To fix this issue, batfet has to be kept in high power mode (HPM).
In order to keep batfet in HPM, display driver enables batfet regulator
whenever display panel is on.
Change-Id: I2f3d9f20fcf86b3147ac7396d56f93bfc08377c7
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/fb/mdss-mdp.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fb/mdss-mdp.txt b/Documentation/devicetree/bindings/fb/mdss-mdp.txt index 7ba9a887925c..cdd8140768bd 100644 --- a/Documentation/devicetree/bindings/fb/mdss-mdp.txt +++ b/Documentation/devicetree/bindings/fb/mdss-mdp.txt @@ -97,6 +97,7 @@ Required properties interface blocks avaialble in hardware. Optional properties: +- batfet-supply : Phandle for battery FET regulator device node. - qcom,vbif-settings : Array with key-value pairs of constant VBIF register settings used to setup MDSS QoS for optimum performance. The key used should be offset from "vbif_phys" register @@ -163,6 +164,7 @@ Example: reg-names = "mdp_phys", "vbif_phys"; interrupts = <0 72 0>; vdd-supply = <&gdsc_mdss>; + batfet-supply = <&pm8941_chg_batif>; qcom,max-clk-rate = <320000000>; qcom,vbif-settings = <0x0004 0x00000001>, <0x00D8 0x00000707>; |