From: Baolin Wang <baolin.wang7@gmail.com>
To: lee.jones@linaro.org, arnd@arndb.de
Cc: broonie@kernel.org, baolin.wang7@gmail.com, orsonzhai@gmail.com,
zhang.lyra@gmail.com, linux-kernel@vger.kernel.org
Subject: [PATCH v4 0/2] Add new physical regmap bus support
Date: Sat, 16 May 2020 18:12:27 +0800 [thread overview]
Message-ID: <cover.1589623456.git.baolin.wang7@gmail.com> (raw)
The Spreadtrum platform uses a special set/clear method to update
registers' bits, thus this patch set exports a weak function to
allow to register a physical regmap bus to support this feature
instead of using the MMIO bus, which is not a physical regmap bus.
Any comments are welcome. Thanks.
Changes from v3:
- Remove vendor specific support from the syscon driver, and export
a weak function to support physical regmap bus.
Changes from v2:
- Fix building errors without enabling CONFIG_ARCH_SPRD.
Changes from v1:
- Add WARN_ONCE() for seting bits and clearing bits at the same time.
- Remove the Spreadtrum SoC syscon driver, instead moving the regmap_bus
instance into syscon.c driver.
Changes from RFC v2:
- Drop regmap change, which was applied by Mark.
- Add more information about how to use set/clear.
- Add checking to ensure the platform is compatible with
using a new physical regmap bus.
Changes from RFC v1:
- Add new helper to registers a physical regmap bus instead of
using the MMIO bus.
Baolin Wang (2):
mfd: syscon: Support physical regmap bus
soc: sprd: Add Spreadtrum special bits updating support
drivers/mfd/syscon.c | 9 +++-
drivers/soc/Kconfig | 1 +
drivers/soc/Makefile | 1 +
drivers/soc/sprd/Kconfig | 16 +++++++
drivers/soc/sprd/Makefile | 2 +
drivers/soc/sprd/sprd_syscon.c | 86 ++++++++++++++++++++++++++++++++++
include/linux/mfd/syscon.h | 11 +++++
7 files changed, 125 insertions(+), 1 deletion(-)
create mode 100644 drivers/soc/sprd/Kconfig
create mode 100644 drivers/soc/sprd/Makefile
create mode 100644 drivers/soc/sprd/sprd_syscon.c
--
2.17.1
next reply other threads:[~2020-05-16 10:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-16 10:12 Baolin Wang [this message]
2020-05-16 10:12 ` [PATCH v4 1/2] mfd: syscon: Support physical regmap bus Baolin Wang
2020-05-17 0:08 ` Orson Zhai
2020-05-17 8:56 ` Baolin Wang
2020-05-19 13:18 ` Arnd Bergmann
2020-05-21 1:08 ` Orson Zhai
2020-05-16 10:12 ` [PATCH v4 2/2] soc: sprd: Add Spreadtrum special bits updating support Baolin Wang
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