kernel: update kernel 4.9 to version 4.9.91
[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.9 / 950-0153-clk-bcm-Allow-rate-change-propagation-to-PLLH_AUX-on.patch
1 From 5209e1b8f78fd1184f25cf19cf0daa58f4ad6599 Mon Sep 17 00:00:00 2001
2 From: Boris Brezillon <boris.brezillon@free-electrons.com>
3 Date: Thu, 1 Dec 2016 22:00:20 +0100
4 Subject: [PATCH] clk: bcm: Allow rate change propagation to PLLH_AUX on VEC
5 clock
6
7 The VEC clock requires needs to be set at exactly 108MHz. Allow rate
8 change propagation on PLLH_AUX to match this requirement wihtout
9 impacting other IPs (PLLH is currently only used by the HDMI encoder,
10 which cannot be enabled when the VEC encoder is enabled).
11
12 Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
13 Reviewed-by: Eric Anholt <eric@anholt.net>
14 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
15 (cherry picked from commit d86d46af84855403c00018be1c3e7bc190f2a6cd)
16 ---
17 drivers/clk/bcm/clk-bcm2835.c | 7 ++++++-
18 1 file changed, 6 insertions(+), 1 deletion(-)
19
20 --- a/drivers/clk/bcm/clk-bcm2835.c
21 +++ b/drivers/clk/bcm/clk-bcm2835.c
22 @@ -1874,7 +1874,12 @@ static const struct bcm2835_clk_desc clk
23 .ctl_reg = CM_VECCTL,
24 .div_reg = CM_VECDIV,
25 .int_bits = 4,
26 - .frac_bits = 0),
27 + .frac_bits = 0,
28 + /*
29 + * Allow rate change propagation only on PLLH_AUX which is
30 + * assigned index 7 in the parent array.
31 + */
32 + .set_rate_parent = BIT(7)),
33
34 /* dsi clocks */
35 [BCM2835_CLOCK_DSI0E] = REGISTER_PER_CLK(