Unverified Commit 45a44b01 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Robert Foss
Browse files

drm/bridge: tc358768: Enable reference clock 



The driver assumes that reference clock is always-enabled, but this is
hardware-dependent and not true for ASUS Transformer TF700T. Make driver
enable / disable the reference clock.

Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # Asus TF700T
Tested-by: Maxim Schwalm <maxim.schwalm@gmail.com> #TF700T
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Reviewed-by: default avatarRobert Foss <robert.foss@linaro.org>
Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211002233447.1105-2-digetx@gmail.com
parent f2d061ed

drivers/gpu/drm/bridge/tc358768.c

+6 −0
Original line number Diff line number Diff line
@@ -237,6 +237,10 @@ static void tc358768_hw_enable(struct tc358768_priv *priv) 
	if (priv->enabled)

		return;



	ret = clk_prepare_enable(priv->refclk);

	if (ret < 0)

		dev_err(priv->dev, "error enabling refclk (%d)\n", ret);



	ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies);

	if (ret < 0)

		dev_err(priv->dev, "error enabling regulators (%d)\n", ret);
@@ -274,6 +278,8 @@ static void tc358768_hw_disable(struct tc358768_priv *priv) 
	if (ret < 0)

		dev_err(priv->dev, "error disabling regulators (%d)\n", ret);



	clk_disable_unprepare(priv->refclk);



	priv->enabled = false;

}