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From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date:   Wed, 01 Nov 2023 11:17:41 +0200
Subject: [PATCH 04/10] drm/tidss: Move reset to the end of dispc_init()
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Message-Id: <20231101-tidss-probe-v1-4-45149e0f9415@ideasonboard.com>
References: <20231101-tidss-probe-v1-0-45149e0f9415@ideasonboard.com>
In-Reply-To: <20231101-tidss-probe-v1-0-45149e0f9415@ideasonboard.com>
To:     Aradhya Bhatia <a-bhatia1@ti.com>,
        Devarsh Thakkar <devarsht@ti.com>,
        Jyri Sarha <jyri.sarha@iki.fi>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>
Cc:     dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Precedence: bulk

We do a DSS reset in the middle of the dispc_init(). While that happens
to work now, we should really make sure that e..g the fclk, which is
acquired only later in the function, is enabled when doing a reset. This
will be handled in a later patch, but for now, let's move the
dispc_softreset() call to the end of dispc_init(), which is a sensible
place for it anyway.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 drivers/gpu/drm/tidss/tidss_dispc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c b/drivers/gpu/drm/tidss/tidss_dispc.c
index ad7999434299..9430625e2d62 100644
--- a/drivers/gpu/drm/tidss/tidss_dispc.c
+++ b/drivers/gpu/drm/tidss/tidss_dispc.c
@@ -2777,10 +2777,6 @@ int dispc_init(struct tidss_device *tidss)
 			return r;
 	}
 
-	/* K2G display controller does not support soft reset */
-	if (feat->subrev != DISPC_K2G)
-		dispc_softreset(dispc);
-
 	for (i = 0; i < dispc->feat->num_vps; i++) {
 		u32 gamma_size = dispc->feat->vp_feat.color.gamma_size;
 		u32 *gamma_table;
@@ -2831,5 +2827,9 @@ int dispc_init(struct tidss_device *tidss)
 
 	tidss->dispc = dispc;
 
+	/* K2G display controller does not support soft reset */
+	if (feat->subrev != DISPC_K2G)
+		dispc_softreset(dispc);
+
 	return 0;
 }

-- 
2.34.1