Re: [PATCH 4/5] PM / devfreq: rockchip: add devfreq driver for rk3399 dmc
From: Heiko Stübner <heiko@sntech.de>
Date: 2016-09-01 23:18:04
Also in:
dri-devel, linux-arm-kernel, linux-pm, linux-rockchip, lkml
Am Freitag, 2. September 2016, 06:31:24 schrieb Lin Huang:
base on dfi result, we do ddr frequency scaling, register dmc driver to devfreq framework, and use simple-ondemand policy. Signed-off-by: Lin Huang <redacted> Signed-off-by: MyngJoo Ham <redacted> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> ---
[...]
quoted hunk ↗ jump to hunk
diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c new file mode 100644 index 0000000..54d65f2 --- /dev/null +++ b/drivers/devfreq/rk3399_dmc.c@@ -0,0 +1,480 @@ +/* + * Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd. + * Author: Lin Huang <hl@rock-chips.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public Licensefor + * more details. + */ + +#include <linux/arm-smccc.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/devfreq.h> +#include <linux/devfreq-event.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pm_opp.h> +#include <linux/regulator/consumer.h> +#include <linux/rwsem.h> +#include <linux/suspend.h> + +#include <soc/rockchip/rockchip_sip.h>
(Repeated from previous version)
For the shared sip-interface header I've prepared a signed, stable tag
which can be pulled from
The following changes since commit 29b4817d4018df78086157ea3a55c1d9424a7cfc:
Linux 4.8-rc1 (2016-08-07 18:18:00 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git tags/rockchip-ddr-sip
for you to fetch changes up to 97dd82682f1a6174698fbea149a04b4cabc58c4f:
soc: rockchip: add header for ddr rate SIP interface (2016-08-31 18:53:24 +0200)
----------------------------------------------------------------
Header file defining the SIP-interface to the ATF for DDR frequency changes
----------------------------------------------------------------
Lin Huang (1):
soc: rockchip: add header for ddr rate SIP interface
include/soc/rockchip/rockchip_sip.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 include/soc/rockchip/rockchip_sip.h
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