def find(fdt: Fdt2) -> Iterator[Panel]:
for mdp in fdt.find_by_compatible('qcom,mdss_mdp'):
for sub in fdt.subnodes(mdp):
panel = Panel.parse(fdt, sub)
if panel:
yield panel
# Newer device trees do not necessarily have panels below MDP,
# search for qcom,dsi-display node instead
panel_phandles = set()
for display in fdt.find_by_compatible('qcom,dsi-display'):
# On even newer SoCs there is another node with qcom,dsi-display-list
displays = fdt.getprop_or_none(display, 'qcom,dsi-display-list')
if displays is None:
panel_phandles.add(
fdt.getprop(display, 'qcom,dsi-panel').as_uint32())
else:
for display_phandle in displays.as_uint32_array():
display = fdt.node_offset_by_phandle(display_phandle)
panel_phandles.add(
fdt.getprop(display, 'qcom,dsi-panel').as_uint32())
for phandle in panel_phandles:
offset = fdt.node_offset_by_phandle(phandle)
panel = Panel.parse(fdt, offset)
if panel:
yield panel
def __init__(self, name: str, fdt: Fdt2, node: int) -> None:
self.name = name
self.node_name = fdt.get_name(node)
self.id = _remove_before(_remove_prefixes(self.node_name, 'qcom,mdss_dsi_', 'ss_dsi_panel_', 'mot_').lower(), ',')
print(f'Parsing: {self.id} ({name})')
self.short_id = _replace_all(self.id, '_panel', '_video', '_vid', '_cmd',
'_hd', '_qhd', '_720p', '_1080p',
'_wvga', '_fwvga', '_qvga', '_xga', '_wxga')
# Newer SoCs can use panels in different modes (resolution, refresh rate etc).
# We don't support this properly yet but many panels just have a single mode
# ("timing") defined, so let's try to support this here.
mode_node = _find_mode_node(fdt, node)
self.h = Dimension(fdt, node, mode_node, Dimension.Type.HORIZONTAL)
self.v = Dimension(fdt, node, mode_node, Dimension.Type.VERTICAL)
self.framerate = fdt.getprop(mode_node, 'qcom,mdss-dsi-panel-framerate').as_int32()
self.bpp = fdt.getprop(node, 'qcom,mdss-dsi-bpp').as_int32()
self.mode = Mode(fdt.getprop(node, 'qcom,mdss-dsi-panel-type').as_str())
self.traffic_mode = TrafficMode.parse(fdt.getprop(node, 'qcom,mdss-dsi-traffic-mode'))
backlight = fdt.getprop_or_none(node, 'qcom,mdss-dsi-bl-pmic-control-type')
self.backlight = BacklightControl(backlight.as_str()) if backlight else None
self.max_brightness = fdt.getprop_int32(node, 'qcom,mdss-dsi-bl-max-level', None)
if self.backlight == BacklightControl.DCS and self.max_brightness is None:
print("WARNING: DCS backlight without maximum brightness, ignoring...")
self.backlight = None
self.lanes = 0
while fdt.getprop_or_none(node, f'qcom,mdss-dsi-lane-{self.lanes}-state') is not None:
self.lanes += 1
self.lane_map = LaneMap.parse(fdt.getprop_or_none(node, 'qcom,mdss-dsi-lane-map'))
self.flags = self.mode.flags + self.traffic_mode.flags
if fdt.getprop_int32(node, 'qcom,mdss-dsi-h-sync-pulse') != 0:
self.flags.append('MIPI_DSI_MODE_VIDEO_HSE')
if fdt.getprop_or_none(node, 'qcom,mdss-dsi-tx-eot-append') is None:
self.flags.append('MIPI_DSI_MODE_NO_EOT_PACKET')
if fdt.getprop_or_none(node, 'qcom,mdss-dsi-force-clock-lane-hs') is None \
and fdt.getprop_or_none(node, 'qcom,mdss-dsi-force-clk-lane-hs') is None \
and fdt.getprop_or_none(node, 'qcom,mdss-force-clk-lane-hs') is None:
self.flags.append('MIPI_DSI_CLOCK_NON_CONTINUOUS')
reset_seq = fdt.getprop_or_none(node, 'qcom,mdss-dsi-reset-sequence')
if reset_seq is not None:
itr = iter(reset_seq.as_uint32_array())
self.reset_seq = list(zip(itr, itr))
else:
self.reset_seq = None
self.cmds = {
'on': CommandSequence(fdt, mode_node, 'on'),
'off': CommandSequence(fdt, mode_node, 'off')
}
# If all commands are sent in LPM, add flag globally
if self.cmds['on'].state == CommandSequence.State.LP_MODE == self.cmds['off'].state:
self.flags.append('MIPI_DSI_MODE_LPM')
if self.bpp == 24:
self.format = 'MIPI_DSI_FMT_RGB888'
else:
raise ValueError(f'Unsupported bpp: {self.bpp} (TODO)')
# Sony </3
prop = fdt.getprop_or_none(node, 'somc,mdss-phy-size-mm')
if prop:
phy_size_mm = prop.as_uint32_array()
self.h.size = phy_size_mm[0]
self.v.size = phy_size_mm[1]
# Check DSI controller if LDO mode is needed
self.ldo_mode = False
dsi_ctrl = fdt.getprop_or_none(node, 'qcom,mdss-dsi-panel-controller')
if dsi_ctrl is not None:
dsi_ctrl = fdt.node_offset_by_phandle(dsi_ctrl.as_uint32())
self.ldo_mode = fdt.getprop_or_none(dsi_ctrl, 'qcom,regulator-ldo-mode') is not None
# Timings are usually calculated by the driver except for downstream and LK
p = fdt.getprop_or_none(node, 'qcom,mdss-dsi-panel-timings')
self.timings = bytes(p) if p else bytes()
self.tclk_post = fdt.getprop_int32(node, 'qcom,mdss-dsi-t-clk-post')
self.tclk_pre = fdt.getprop_int32(node, 'qcom,mdss-dsi-t-clk-pre')
# Additional weird values used by downstream and LK
self.hsync_skew = fdt.getprop_int32(node, 'qcom,mdss-dsi-h-sync-skew')
self.hfp_power_mode = fdt.getprop_or_none(node, 'qcom,mdss-dsi-hfp-power-mode') is not None
self.hsa_power_mode = fdt.getprop_or_none(node, 'qcom,mdss-dsi-hsa-power-mode') is not None
self.hbp_power_mode = fdt.getprop_or_none(node, 'qcom,mdss-dsi-hbp-power-mode') is not None
self.bllp_power_mode = fdt.getprop_or_none(node, 'qcom,mdss-dsi-bllp-power-mode') is not None
self.bllp_eof_power_mode = fdt.getprop_or_none(node, 'qcom,mdss-dsi-bllp-eof-power-mode') is not None
self.lp11_init = fdt.getprop_or_none(node, 'qcom,mdss-dsi-lp11-init') is not None
self.init_delay = fdt.getprop_int32(node, 'qcom,mdss-dsi-init-delay-us')