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dtsi: add pinctrl #35

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dtsi: add pinctrl #35

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0478be9
dtsi: Rename &msmgpio -> &tlmm
wonderfulShrineMaidenOfParadise Aug 18, 2023
cae5a3f
dtsi: add pinctrl
wonderfulShrineMaidenOfParadise Aug 18, 2023
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45 changes: 44 additions & 1 deletion dtsi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,44 @@ def generate_gpios(options: Options):
s = ""
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 = <&msmgpio XY {flags}>;\n"
s += f"\t\t{name}-gpios = <&tlmm XY {flags}>;\n"

if 'backlight' in options.gpios:
s += '''
pinctrl-0 = <&lcd_bl_en_default>;
pinctrl-names = "default";
'''
return s


def generate_tlmm(options: Options):
s = "&tlmm {"
if 'backlight' in options.gpios:
s += '''
lcd_bl_en_default: lcd-bl-en-default-state {
pins = "gpioXY";
function = "gpio";
drive-strength = <2>;
bias-disable;
};
'''

s += '''
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;
};
};
'''
return s


Expand All @@ -35,6 +72,10 @@ 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";
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Hm, we also generate this if there is no reset in options.gpio. The reset gpio is usually there but this is not guaranteed. e.g. samsung-gtelwifiue in linux-panel-drivers.


panel@0 {{
compatible = "{options.compatible}";
reg = <0>;
Expand Down Expand Up @@ -69,3 +110,5 @@ def generate_panel_dtsi(p: Panel, options: Options) -> None:
phy-type = <PHY_TYPE_CPHY>;
};
''')

f.write(generate_tlmm(options))