dtsi: add pinctrl

Fixes msm8916-mainline#29

dtsi.py

@@ -2,6 +2,9 @@
 from generator import Options, GpioFlag
 from panel import Panel, BacklightControl
 
+def has_gpio_backlight(options):
+ return 'backlight' in options.gpios
+
 
 def generate_backlight(p: Panel):
  if p.backlight == BacklightControl.DCS:
@@ -22,6 +25,12 @@ def generate_gpios(options: Options):
  for name, flags in options.gpios.items():
  flags = "GPIO_ACTIVE_LOW" if flags & GpioFlag.ACTIVE_LOW else "GPIO_ACTIVE_HIGH"
  s += f"\t\t{name}-gpios = <&tlmm XY {flags}>;\n"
+
+ if has_gpio_backlight(options):
+ s += '''
+ pinctrl-0 = <&lcd_bl_en_default>;
+ pinctrl-names = "default";
+'''
  return s
 
 
@@ -35,6 +44,10 @@ def generate_panel_dtsi(p: Panel, options: Options) -> None:
 ''')
  f.write(f'''\
 &mdss_dsi0 {{
+ pinctrl-0 = <&mdss_default>;
+ pinctrl-1 = <&mdss_sleep>;
+ pinctrl-names = "default", "sleep";
+
  panel@0 {{
  compatible = "{options.compatible}";
  reg = <0>;
@@ -68,4 +81,32 @@ def generate_panel_dtsi(p: Panel, options: Options) -> None:
 &mdss_dsi0_phy {
  phy-type = <PHY_TYPE_CPHY>;
 };
+''')
+
+ f.write('''
+&tlmm {''')
+ if has_gpio_backlight(options):
+ f.write('''
+ lcd_bl_en_default: lcd-bl-en-default-state {
+ pins = "gpioXY";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+''')
+ f.write('''
+ mdss_default: mdss-default-state {
+ pins = "gpioXY";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-disable;
+ };
+
+ mdss_sleep: mdss-sleep-state {
+ pins = "gpioXY";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+};
 ''')