linux-kernel - [PATCH v2 1/7] clk: sunxi-ng: a64: propagate rate change from pll-mipi

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Message-Id: <20230418074008.69752-2-me@crly.cz>
Date:   Tue, 18 Apr 2023 09:40:02 +0200
From:   Roman Beranek <me@...y.cz>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>
Cc:     Roman Beranek <me@...y.cz>, Frank Oltmanns <frank@...manns.dev>,
        Icenowy Zheng <icenowy@...p.io>, Ondrej Jirman <megi@....cz>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/7] clk: sunxi-ng: a64: propagate rate change from pll-mipi

Propagating rate change from tcon0 all the way to pll-video0 allows for
greater precision in matching requested display timing.

Signed-off-by: Roman Beranek <me@...y.cz>
---
 drivers/clk/sunxi-ng/ccu-sun50i-a64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
index 41519185600a..dd6212286dcd 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
@@ -179,7 +179,8 @@ static struct ccu_nkm pll_mipi_clk = {
 	.common		= {
 		.reg		= 0x040,
 		.hw.init	= CLK_HW_INIT("pll-mipi", "pll-video0",
-					      &ccu_nkm_ops, CLK_SET_RATE_UNGATE),
+					      &ccu_nkm_ops, CLK_SET_RATE_UNGATE
+							  | CLK_SET_RATE_PARENT),
 	},
 };
 
-- 
2.34.1