The VPU clock is also the clock for our AXI bus, so we really can't
disable it. This might have happened during boot if, for example,
uart1 (aux_uart clock) probed and was then disabled before the other
consumers of the VPU clock had probed.
Signed-off-by: Eric Anholt <e...@anholt.net>
---
drivers/clk/bcm/clk-bcm2835.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 5a7e3eca5d12..14f3066194ac 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1267,6 +1267,7 @@ static struct clk *bcm2835_register_clock(struct
bcm2835_cprman *cprman,
if (data->is_vpu_clock) {
init.ops = &bcm2835_vpu_clock_clk_ops;
+ init.flags |= CLK_IS_CRITICAL;
} else {
init.ops = &bcm2835_clock_clk_ops;
init.flags |= CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE;
--
2.8.0.rc3
