You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
915 B
28 lines
915 B
From 39c54b332bfe3cb95221b663d38b5b620e47c912 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Mon, 13 Feb 2017 17:20:08 +0000
|
|
Subject: [PATCH 026/454] clk-bcm2835: Mark used PLLs and dividers CRITICAL
|
|
|
|
The VPU configures and relies on several PLLs and dividers. Mark all
|
|
enabled dividers and their PLLs as CRITICAL to prevent the kernel from
|
|
switching them off.
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|
---
|
|
drivers/clk/bcm/clk-bcm2835.c | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
--- a/drivers/clk/bcm/clk-bcm2835.c
|
|
+++ b/drivers/clk/bcm/clk-bcm2835.c
|
|
@@ -1399,6 +1399,11 @@ bcm2835_register_pll_divider(struct bcm2
|
|
divider->div.hw.init = &init;
|
|
divider->div.table = NULL;
|
|
|
|
+ if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) {
|
|
+ init.flags |= CLK_IS_CRITICAL;
|
|
+ divider->div.flags |= CLK_IS_CRITICAL;
|
|
+ }
|
|
+
|
|
divider->cprman = cprman;
|
|
divider->data = data;
|
|
|
|
|