From: kever.yang@rock-chips•com (Kever Yang)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 0/4] clk: rockchip: allow adjusting pll rates on init
Date: Fri, 21 Nov 2014 10:56:39 +0800 [thread overview]
Message-ID: <546EA9E7.6090104@rock-chips.com> (raw)
In-Reply-To: <1416512333-15438-1-git-send-email-heiko@sntech.de>
Hi Heiko,
On 11/21/2014 03:38 AM, Heiko Stuebner wrote:
> It was found that some firmware versions initialized the pll rates using
> suboptimal parameters to achieve frequencies the actual rate table contained
> better parameters for.
>
> Therefore this series first adds the possibility to create pll-specific flags
> and then adds a flag to adjust the pll rate on init to the parameters from
> the rate table.
>
> changes since v1:
> - move population of pll_mux before registering the core pll clock
> null pointer exception in the _set_rate callback when called from init
>
> Heiko Stuebner (4):
> clk: rockchip: add ability to specify pll-specific flags
> clk: rockchip: setup pll_mux data earlier
> clk: rockchip: add optional sync to pll rate parameters
> clk: rockchip: add ROCKCHIP_PLL_SYNC_RATE flag to some plls
>
> drivers/clk/rockchip/clk-pll.c | 81 +++++++++++++++++++++++++++++++--------
> drivers/clk/rockchip/clk-rk3188.c | 8 ++--
> drivers/clk/rockchip/clk-rk3288.c | 10 ++---
> drivers/clk/rockchip/clk.c | 3 +-
> drivers/clk/rockchip/clk.h | 13 ++++++-
> 5 files changed, 88 insertions(+), 27 deletions(-)
>
The PLLs may have different usage, so add the pll-specific flag make sense.
I have test this patch set on both rk3288 evb and rk3288 pinky.
For this series:
Reviewed-by: Kever Yang <kever.yang@rock-chips•com>
Tested-by: Kever Yang <kever.yang@rock-chips•com>
next prev parent reply other threads:[~2014-11-21 2:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-20 19:38 [PATCH v2 0/4] clk: rockchip: allow adjusting pll rates on init Heiko Stuebner
2014-11-20 19:38 ` [PATCH v2 1/4] clk: rockchip: add ability to specify pll-specific flags Heiko Stuebner
2014-11-20 19:38 ` [PATCH v2 2/4] clk: rockchip: setup pll_mux data earlier Heiko Stuebner
2014-11-20 19:38 ` [PATCH v2 3/4] clk: rockchip: add optional sync to pll rate parameters Heiko Stuebner
2014-11-20 19:38 ` [PATCH v2 4/4] clk: rockchip: add ROCKCHIP_PLL_SYNC_RATE flag to some plls Heiko Stuebner
2014-11-21 2:56 ` Kever Yang [this message]
2014-11-25 6:11 ` [PATCH v2 0/4] clk: rockchip: allow adjusting pll rates on init Mike Turquette
2014-11-25 11:28 ` Heiko Stübner
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