[PATCH v7 7/8] PM / devfreq: rockchip: add devfreq driver for rk3399 dmc
From: heiko@sntech.de (Heiko Stübner)
Date: 2016-09-01 09:41:48
Also in:
dri-devel, linux-pm, linux-rockchip, lkml
Hi, Am Montag, 22. August 2016, 11:36:23 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> 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..b73a73c --- /dev/null +++ b/drivers/devfreq/rk3399_dmc.c@@ -0,0 +1,499 @@ +/* + * 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>
I've split out the needed sip interface-header from patch1 and provide
a stable signed tag you can pull into the devfreq tree.
Heiko
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