On Wed, Aug 3, 2016 at 7:05 PM, John Stultz <john.stu...@linaro.org> wrote: > Add sram-reboot-mode driver, which enables > reboot modes to be specified from sram subnodes. > > Cc: Andy Yan <andy....@rock-chips.com> > Cc: Rob Herring <r...@kernel.org> > Cc: Arnd Bergmann <a...@arndb.de> > Cc: Thierry Reding <tred...@nvidia.com> > Cc: Heiko Stübner <he...@sntech.de> > Cc: Caesar Wang <w...@rock-chips.com> > Cc: Kees Cook <keesc...@chromium.org> > Cc: Guodong Xu <guodong...@linaro.org> > Cc: Haojian Zhuang <haojian.zhu...@linaro.org> > Cc: Vishal Bhoj <vishal.b...@linaro.org> > Cc: Bjorn Andersson <bjorn.anders...@linaro.org> > Cc: devicet...@vger.kernel.org > Cc: Android Kernel Team <kernel-t...@android.com> > Signed-off-by: John Stultz <john.stu...@linaro.org> > --- > drivers/power/reset/Kconfig | 10 ++++ > drivers/power/reset/Makefile | 1 + > drivers/power/reset/sram-reboot-mode.c | 95 > ++++++++++++++++++++++++++++++++++ > 3 files changed, 106 insertions(+) > create mode 100644 drivers/power/reset/sram-reboot-mode.c > > diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig > index 3bfac53..af553ed 100644 > --- a/drivers/power/reset/Kconfig > +++ b/drivers/power/reset/Kconfig > @@ -208,5 +208,15 @@ config SYSCON_REBOOT_MODE > register, then the bootloader can read it to take different > action according to the mode. > > +config SRAM_REBOOT_MODE > + bool "Generic SRAM reboot mode driver"
Since this is bool, can we dump the module.h and any MODULE_* tags from the driver, and register using a builtin variant? Thanks, Paul. -- > + select REBOOT_MODE > + select SRAM > + help > + Say y here will enable reboot mode driver. This will > + get reboot mode arguments and store it in an SRAM > + address, then the bootloader can read it to take different > + action according to the mode. > + > endif > > diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile > index 1be307c..14f23ad 100644 > --- a/drivers/power/reset/Makefile > +++ b/drivers/power/reset/Makefile > @@ -24,3 +24,4 @@ obj-$(CONFIG_POWER_RESET_RMOBILE) += rmobile-reset.o > obj-$(CONFIG_POWER_RESET_ZX) += zx-reboot.o > obj-$(CONFIG_REBOOT_MODE) += reboot-mode.o > obj-$(CONFIG_SYSCON_REBOOT_MODE) += syscon-reboot-mode.o > +obj-$(CONFIG_SRAM_REBOOT_MODE) += sram-reboot-mode.o > diff --git a/drivers/power/reset/sram-reboot-mode.c > b/drivers/power/reset/sram-reboot-mode.c > new file mode 100644 > index 0000000..8945dac > --- /dev/null > +++ b/drivers/power/reset/sram-reboot-mode.c > @@ -0,0 +1,95 @@ > +/* > + * Copyright (c) 2016, Linaro Limited > + * Based on syscon-reboot-mode.c > + * Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > +#include <linux/init.h> > +#include <linux/module.h> > +#include <linux/kernel.h> > +#include <linux/io.h> > +#include <linux/of.h> > +#include <linux/of_address.h> > +#include <linux/platform_device.h> > +#include <linux/reboot.h> > +#include <linux/regmap.h> > +#include "reboot-mode.h" > +
