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From: Frank Oltmanns <frank@oltmanns.dev>
To: "Michael Turquette" <mturquette@baylibre.com>,
	"Stephen Boyd" <sboyd@kernel.org>, "Chen-Yu Tsai" <wens@csie.org>,
	"Jernej Skrabec" <jernej.skrabec@gmail.com>,
	"Samuel Holland" <samuel@sholland.org>,
	"Guido Günther" <agx@sigxcpu.org>,
	"Purism Kernel Team" <kernel@puri.sm>,
	"Ondrej Jirman" <megi@xff.cz>,
	"Neil Armstrong" <neil.armstrong@linaro.org>,
	"Jessica Zhang" <quic_jesszhan@quicinc.com>,
	"Sam Ravnborg" <sam@ravnborg.org>,
	"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: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	 linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	 dri-devel@lists.freedesktop.org,
	Frank Oltmanns <frank@oltmanns.dev>
Subject: [PATCH 4/5] clk: sunxi-ng: a64: Add constraints on PLL-VIDEO0's n/m ratio
Date: Mon, 18 Dec 2023 14:35:22 +0100	[thread overview]
Message-ID: <20231218-pinephone-pll-fixes-v1-4-e238b6ed6dc1@oltmanns.dev> (raw)
In-Reply-To: <20231218-pinephone-pll-fixes-v1-0-e238b6ed6dc1@oltmanns.dev>

The Allwinner A64 manual lists the following constraint for the
PLL-VIDEO0 clock: 8 <= N/M <= 25

Use this constraint.

Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>
---
 drivers/clk/sunxi-ng/ccu-sun50i-a64.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
index c034ac027d1c..75d839da446c 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
@@ -68,7 +68,8 @@ static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base",
 				       BIT(28),	/* lock */
 				       CLK_SET_RATE_UNGATE);
 
-static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX_CLOSEST(pll_video0_clk, "pll-video0",
+static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX_FEAT_NM_RATIO(pll_video0_clk,
+						"pll-video0",
 						"osc24M", 0x010,
 						192000000,	/* Minimum rate */
 						1008000000,	/* Maximum rate */
@@ -80,7 +81,10 @@ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX_CLOSEST(pll_video0_clk, "pll-vid
 						297000000,	/* frac rate 1 */
 						BIT(31),	/* gate */
 						BIT(28),	/* lock */
-						CLK_SET_RATE_UNGATE);
+						CLK_SET_RATE_UNGATE,
+						CCU_FEATURE_FRACTIONAL |
+						CCU_FEATURE_CLOSEST_RATE,
+						8, 25);		/* min/max nm ratio */
 
 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve",
 					"osc24M", 0x018,

-- 
2.43.0


  parent reply	other threads:[~2023-12-18 13:36 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-18 13:35 [PATCH 0/5] Pinephone video out fixes (flipping between two frames) Frank Oltmanns
2023-12-18 13:35 ` [PATCH 1/5] clk: sunxi-ng: nkm: Support constraints on m/n ratio and parent rate Frank Oltmanns
2023-12-18 17:26   ` Frank Oltmanns
2023-12-19 16:46   ` Jernej Škrabec
2023-12-20  6:58     ` Frank Oltmanns
2023-12-20 15:09       ` Jernej Škrabec
2023-12-18 13:35 ` [PATCH 2/5] clk: sunxi-ng: a64: Add constraints on PLL-MIPI's n/m " Frank Oltmanns
2023-12-19 16:46   ` Jernej Škrabec
2023-12-18 13:35 ` [PATCH 3/5] clk: sunxi-ng: nm: Support constraints on " Frank Oltmanns
2023-12-19 16:52   ` Jernej Škrabec
2023-12-18 13:35 ` Frank Oltmanns [this message]
2023-12-19 16:54   ` [PATCH 4/5] clk: sunxi-ng: a64: Add constraints on PLL-VIDEO0's n/m ratio Jernej Škrabec
2023-12-20  7:09     ` Frank Oltmanns
2023-12-20 15:12       ` Jernej Škrabec
2023-12-22  7:46         ` Frank Oltmanns
2023-12-31  9:10     ` Frank Oltmanns
2024-01-09 20:29       ` Jernej Škrabec
2023-12-18 13:35 ` [PATCH 5/5] drm/panel: st7703: Drive XBD599 panel at higher clock rate Frank Oltmanns
2023-12-19 17:04   ` Jernej Škrabec
2023-12-20  7:14     ` Frank Oltmanns
2023-12-20 15:18       ` Jernej Škrabec
2023-12-20 18:57         ` Frank Oltmanns
2023-12-22  9:10           ` Frank Oltmanns
2023-12-22 17:36             ` Jernej Škrabec
2023-12-30 21:17         ` Frank Oltmanns

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