lkml.org 
[lkml]   [2016]   [May]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/3] clk: bcm2835: Mark GPIO clocks enabled at boot as critical.
Date
These divide off of PLLD_PER and are used for the ethernet and wifi
PHYs source PLLs. Neither of them is currently represented by a phy
device that would grab the clock for us.

This keeps other drivers from killing the networking PHYs when they
disable their own clocks and trigger PLLD_PER's refcount going to 0.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/clk/bcm/clk-bcm2835.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index d9db03cb3fd8..1091012ecec6 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1708,13 +1708,15 @@ static const struct bcm2835_clk_desc clk_desc_array[] = {
.div_reg = CM_GP1DIV,
.int_bits = 12,
.frac_bits = 12,
+ .flags = CLK_IS_CRITICAL,
.is_mash_clock = true),
[BCM2835_CLOCK_GP2] = REGISTER_PER_CLK(
.name = "gp2",
.ctl_reg = CM_GP2CTL,
.div_reg = CM_GP2DIV,
.int_bits = 12,
- .frac_bits = 12),
+ .frac_bits = 12,
+ .flags = CLK_IS_CRITICAL),

/* HDMI state machine */
[BCM2835_CLOCK_HSM] = REGISTER_PER_CLK(
--
2.8.0.rc3
\
 
 \ /
  Last update: 2016-05-10 03:21    [W:0.114 / U:0.276 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site