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drm/tiny: panel-mipi-dbi: Read I/O supply from DT

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To support platforms with a separate I/O voltage supply, set the new
io_regulator property along with the regulator property of the DBI
device. Read the I/O supply from a new "io-supply" device tree
property.

Signed-off-by: Otto Pflüger <otto.pflueger@abscue.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221201160245.2093816-3-otto.pflueger@abscue.de
This commit is contained in:
Otto Pflüger 2022-12-01 17:02:44 +01:00 committed by Noralf Trønnes
parent 3b1fb8b3a3
commit 3dd26888ac
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/tiny/panel-mipi-dbi.c
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@ -294,6 +294,11 @@ static int panel_mipi_dbi_spi_probe(struct spi_device *spi)
return dev_err_probe(dev, PTR_ERR(dbidev->regulator),
"Failed to get regulator 'power'\n");
dbidev->io_regulator = devm_regulator_get(dev, "io");
if (IS_ERR(dbidev->io_regulator))
return dev_err_probe(dev, PTR_ERR(dbidev->io_regulator),
"Failed to get regulator 'io'\n");
dbidev->backlight = devm_of_find_backlight(dev);
if (IS_ERR(dbidev->backlight))
return dev_err_probe(dev, PTR_ERR(dbidev->backlight), "Failed to get backlight\n");