From 99ce6e04231a5a185c1cc7d8d2bd9484c8eabc56 Mon Sep 17 00:00:00 2001
From: Icenowy Zheng <icenowy@aosc.io>
Date: Tue, 4 Sep 2018 12:40:44 +0800
Subject: [PATCH 092/146] clk: sunxi-ng: a64: Add max. rate constraint to video
 PLLs

Video PLLs on A64 can be set to higher rate that it is actually
supported by HW.

Limit maximum rate to 1008 MHz. This is the maximum allowed rate by BSP
clock driver. Interestengly, user manual specifies maximum frequency to
be 600 MHz. Historically, this data was wrong in some user manuals for
other SoCs, so more faith is put in BSP clock driver.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
 drivers/clk/sunxi-ng/ccu-sun50i-a64.c | 50 ++++++++++++++-------------
 1 file changed, 26 insertions(+), 24 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
index 40a7b5fd091c..90ffee824c33 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c
@@ -64,18 +64,19 @@ static SUNXI_CCU_NM_WITH_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(pll_video0_clk, "pll-video0",
-					    "osc24M", 0x010,
-					    192000000,	/* Minimum rate */
-					    8, 7,		/* N */
-					    0, 4,		/* M */
-					    BIT(24),	/* frac enable */
-					    BIT(25),	/* frac select */
-					    270000000,	/* frac rate 0 */
-					    297000000,	/* frac rate 1 */
-					    BIT(31),	/* gate */
-					    BIT(28),	/* lock */
-					    CLK_SET_RATE_UNGATE);
+static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video0_clk, "pll-video0",
+						"osc24M", 0x010,
+						192000000,	/* Minimum rate */
+						1008000000,	/* Maximum rate */
+						8, 7,		/* N */
+						0, 4,		/* M */
+						BIT(24),	/* frac enable */
+						BIT(25),	/* frac select */
+						270000000,	/* frac rate 0 */
+						297000000,	/* frac rate 1 */
+						BIT(31),	/* gate */
+						BIT(28),	/* lock */
+						CLK_SET_RATE_UNGATE);
 
 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve",
 					"osc24M", 0x018,
@@ -126,18 +127,19 @@ static struct ccu_nk pll_periph1_clk = {
 	},
 };
 
-static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN(pll_video1_clk, "pll-video1",
-					    "osc24M", 0x030,
-					    192000000,	/* Minimum rate */
-					    8, 7,		/* N */
-					    0, 4,		/* M */
-					    BIT(24),	/* frac enable */
-					    BIT(25),	/* frac select */
-					    270000000,	/* frac rate 0 */
-					    297000000,	/* frac rate 1 */
-					    BIT(31),	/* gate */
-					    BIT(28),	/* lock */
-					    CLK_SET_RATE_UNGATE);
+static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video1_clk, "pll-video1",
+						"osc24M", 0x030,
+						192000000,	/* Minimum rate */
+						1008000000,	/* Maximum rate */
+						8, 7,		/* N */
+						0, 4,		/* M */
+						BIT(24),	/* frac enable */
+						BIT(25),	/* frac select */
+						270000000,	/* frac rate 0 */
+						297000000,	/* frac rate 1 */
+						BIT(31),	/* gate */
+						BIT(28),	/* lock */
+						CLK_SET_RATE_UNGATE);
 
 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu",
 					"osc24M", 0x038,
-- 
2.17.1

