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drm/bridge: parade-ps8640: Fix regulator supply order 

The datasheet says that VDD12 must be enabled and at full voltage before
VDD33 is enabled.

Reorder the bulk regulator supply names so that VDD12 is enabled before
VDD33. Any enable ramp delays should be handled by setting proper
constraints on the regulators.

Fixes: bc1aee7fc8 ("drm/bridge: Add I2C based driver for ps8640 bridge")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220721092258.3397461-1-wenst@chromium.org
This commit is contained in:
Chen-Yu Tsai 2022-07-21 17:22:58 +08:00 committed by Robert Foss
parent 2b8428a10f
commit fc94224c2e
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GPG Key ID: 3EFD900F76D1D784
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/bridge/parade-ps8640.c
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@ -631,8 +631,8 @@ static int ps8640_probe(struct i2c_client *client)
if (!ps_bridge)
return -ENOMEM;
ps_bridge->supplies[0].supply = "vdd33";
ps_bridge->supplies[1].supply = "vdd12";
ps_bridge->supplies[0].supply = "vdd12";
ps_bridge->supplies[1].supply = "vdd33";
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ps_bridge->supplies),
ps_bridge->supplies);
if (ret)