From: Eric Anholt <eric@anholt.net>
Date: Wed, 2 Aug 2017 18:46:51 +0000 (-0700)
Subject: drm/vc4: Don't disable DSI clocks on component unload.
X-Git-Tag: submit/tizen_4.0/20170911.105929~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b6122febaec08bee07103e67daa37d0725693fcc;p=platform%2Fkernel%2Flinux-rpi3.git

drm/vc4: Don't disable DSI clocks on component unload.

The clocks are enabled/disabled at encoder enable/disable time, not at
component load.  Fixes a WARN_ON at boot if V3D fails to probe.

Fixes: 4078f5757144 ("drm/vc4: Add DSI driver")
Signed-off-by: Eric Anholt <eric@anholt.net>

[inki.dae: apply from rpi3-4.9.y]
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Change-Id: Ifdecf388b2fc838557d3a24265ff9e45c019f7d1
---

diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c
index 17fcac381dbb..284f486ed9db 100644
--- a/drivers/gpu/drm/vc4/vc4_dsi.c
+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
@@ -1692,9 +1692,6 @@ static void vc4_dsi_unbind(struct device *dev, struct device *master,
 
 	mipi_dsi_host_unregister(&dsi->dsi_host);
 
-	clk_disable_unprepare(dsi->pll_phy_clock);
-	clk_disable_unprepare(dsi->escape_clock);
-
 	if (dsi->port == 1)
 		vc4->dsi1 = NULL;
 }