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Message-Id: <20221127191433.1363395-3-otto.pflueger@abscue.de>
Date: Sun, 27 Nov 2022 20:14:31 +0100
From: Otto Pflüger <otto.pflueger@...cue.de>
To: Noralf Trønnes <noralf@...nnes.org>,
Thierry Reding <thierry.reding@...il.com>,
Sam Ravnborg <sam@...nborg.org>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Otto Pflüger <otto.pflueger@...cue.de>
Subject: [PATCH 2/4] drm/tiny: panel-mipi-dbi: Read I/O supply from DT
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@...cue.de>
---
drivers/gpu/drm/tiny/panel-mipi-dbi.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/tiny/panel-mipi-dbi.c b/drivers/gpu/drm/tiny/panel-mipi-dbi.c
index 955a61d628e7..353356ee0397 100644
--- a/drivers/gpu/drm/tiny/panel-mipi-dbi.c
+++ b/drivers/gpu/drm/tiny/panel-mipi-dbi.c
@@ -297,6 +297,11 @@ 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");
--
2.30.2
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