openwrt/target/linux/bcm27xx/patches-5.4/950-0347-clk-bcm2835-Disable-v3d-clock.patch

From 6c37f43308f29a59bc67d4ed010f8fbbf076ec79 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Tue, 3 Sep 2019 20:28:00 +0100
Subject: [PATCH] clk-bcm2835: Disable v3d clock

This is controlled by firmware, see clk-raspberrypi.c

Signed-off-by: popcornmix <popcornmix@gmail.com>
---
 drivers/clk/bcm/clk-bcm2835.c | 30 ++++++++++++------------------
 1 file changed, 12 insertions(+), 18 deletions(-)

--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1734,16 +1734,12 @@ static const struct bcm2835_clk_desc clk
 		.hold_mask = CM_PLLA_HOLDCORE,
 		.fixed_divider = 1,
 		.flags = CLK_SET_RATE_PARENT),
-	[BCM2835_PLLA_PER]	= REGISTER_PLL_DIV(
-		SOC_ALL,
-		.name = "plla_per",
-		.source_pll = "plla",
-		.cm_reg = CM_PLLA,
-		.a2w_reg = A2W_PLLA_PER,
-		.load_mask = CM_PLLA_LOADPER,
-		.hold_mask = CM_PLLA_HOLDPER,
-		.fixed_divider = 1,
-		.flags = CLK_SET_RATE_PARENT),
+
+	/*
+	 * PLLA_PER is used for gpu clocks. Controlled by firmware, see
+	 * clk-raspberrypi.c.
+	 */
+
 	[BCM2835_PLLA_DSI0]	= REGISTER_PLL_DIV(
 		SOC_ALL,
 		.name = "plla_dsi0",
@@ -2021,14 +2017,12 @@ static const struct bcm2835_clk_desc clk
 		.int_bits = 6,
 		.frac_bits = 0,
 		.tcnt_mux = 3),
-	[BCM2835_CLOCK_V3D]	= REGISTER_VPU_CLK(
-		SOC_ALL,
-		.name = "v3d",
-		.ctl_reg = CM_V3DCTL,
-		.div_reg = CM_V3DDIV,
-		.int_bits = 4,
-		.frac_bits = 8,
-		.tcnt_mux = 4),
+
+	/*
+	 * CLOCK_V3D is used for v3d clock. Controlled by firmware, see
+	 * clk-raspberrypi.c.
+	 */
+
 	/*
 	 * VPU clock.  This doesn't have an enable bit, since it drives
 	 * the bus for everything else, and is special so it doesn't need