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From 523bd5057f674fec3006af36a1aaca2480cb09c6 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 31 Mar 2016 12:51:04 -0700
Subject: [PATCH] clk: bcm2835: Don't rate change PLLs on behalf of dividers.
Our core PLLs are intended to be configured once and left alone. With
the flag set, asking to set the PLLD_DSI1 clock rate would change PLLD
just to get closer to the requested DSI clock, thus changing PLLD_PER,
the UART and ethernet PHY clock rates downstream of it, and breaking
ethernet.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/clk/bcm/clk-bcm2835.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1209,7 +1209,7 @@ bcm2835_register_pll_divider(struct bcm2
init.num_parents = 1;
init.name = divider_name;
init.ops = &bcm2835_pll_divider_clk_ops;
- init.flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED;
+ init.flags = CLK_IGNORE_UNUSED;
divider = devm_kzalloc(cprman->dev, sizeof(*divider), GFP_KERNEL);
if (!divider)
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