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UPSTREAM: drm: bridge: vga-dac: Add adi,adv7123 compatible string

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The ADV7123 is a transparent VGA DAC. Unlike dumb VGA DACs it can be
controlled through a power save pin, and requires a power supply.
However, on most boards where the device is used neither the power save
signal nor the power supply are controllable.

To avoid developing a separate device-specific driver add an
"adi,adv7123" compatible entry to the dumb-vga-dac driver. This will
allow supporting most ADV7123-based boards easily, while allowing future
development of an adv7123 driver when needed without breaking backward
compatibility.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170302104728.7150-4-laurent.pinchart+renesas@ideasonboard.com
(cherry picked from commit d29ffab591)

Change-Id: I3447fa126b120911400fd9ec22a05dbb1598251e
Signed-off-by: Jerry Xu <xbl@rock-chips.com>
This commit is contained in:
Laurent Pinchart 2017-03-02 12:47:27 +02:00 • committed by Tao Huang
commit 33e24b5e17
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/bridge/dumb-vga-dac.c
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@ -237,6 +237,7 @@ static int dumb_vga_remove(struct platform_device *pdev)
static const struct of_device_id dumb_vga_match[] = {
{ .compatible = "dumb-vga-dac" },
{ .compatible = "adi,adv7123" },
{ .compatible = "ti,ths8135" },
{},
};