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From: Yash Shah <yash.shah@sifive.com>
To: "linus.walleij@linaro.org" <linus.walleij@linaro.org>,
	"bgolaszewski@baylibre.com" <bgolaszewski@baylibre.com>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"palmer@dabbelt.com" <palmer@dabbelt.com>,
	"Paul Walmsley ( Sifive)" <paul.walmsley@sifive.com>
Cc: "aou@eecs.berkeley.edu" <aou@eecs.berkeley.edu>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"jason@lakedaemon.net" <jason@lakedaemon.net>,
	"maz@kernel.org" <maz@kernel.org>,
	"bmeng.cn@gmail.com" <bmeng.cn@gmail.com>,
	"atish.patra@wdc.com" <atish.patra@wdc.com>,
	Sagar Kadam <sagar.kadam@sifive.com>,
	"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-riscv@lists.infradead.org"
	<linux-riscv@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Sachin Ghadi <sachin.ghadi@sifive.com>,
	Yash Shah <yash.shah@sifive.com>
Subject: [PATCH v2 0/5] GPIO & Hierarchy IRQ support for HiFive Unleashed
Date: Wed, 20 Nov 2019 06:59:11 +0000	[thread overview]
Message-ID: <1574233128-28114-1-git-send-email-yash.shah@sifive.com> (raw)

This patch series adds GPIO drivers, DT documentation and DT nodes for
HiFive Unleashed board. The gpio patches are mostly based on Wesley's patch.
The patchset also adds hierarchy irq domain support as it is required by this
gpio driver.

This patchset is based on Linux 5.4-rc6 and tested on HiFive Unleashed board

Changes:
v2 vs v1:
- Add patch to introduce irq_domain_translate_onecell() and use it in
  the sifive PLIC driver
- Drop the usage of own locks, instead use internal bgpio_locks
- Consistently use regmap for register access throughout the gpio code
- Convert the GPIO DT documentation into a json schema
- Other minor changes based upon feedback received on v1

v1 vs RFC:
Incorporated below changes as suggested by Linus Walleij on RFC version of this
patchset[0]
- Dropped PWM patches as they are already merged.
- Include "GPIO_GENERIC" and "REGMAP_MMIO" in Kconfig select option
- Remove unwanted inclusion of header files
- Use regmap MMIO instead of customised sifive_assign_bit()
- Use GPIOLIB_GENERIC and bgpio_init() to set up the accessors
- Use hierarchical irqdomain

[0] https://lore.kernel.org/linux-riscv/20181010123519.RVexDppaPFpIWl7QU_hpP8tc5qqWPJgeuLYn0FaGbeQ@z/

Yash Shah (5):
  genirq: introduce irq_domain_translate_onecell
  irqchip: sifive: Support hierarchy irq domain
  gpio: sifive: Add DT documentation for SiFive GPIO
  gpio: sifive: Add GPIO driver for SiFive SoCs
  riscv: dts: Add DT support for SiFive FU540 GPIO driver

 .../devicetree/bindings/gpio/gpio-sifive.yaml      |  69 ++++++
 arch/riscv/boot/dts/sifive/fu540-c000.dtsi         |  14 +-
 .../riscv/boot/dts/sifive/hifive-unleashed-a00.dts |   4 +
 drivers/gpio/Kconfig                               |   9 +
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-sifive.c                         | 256 +++++++++++++++++++++
 drivers/irqchip/Kconfig                            |   1 +
 drivers/irqchip/irq-sifive-plic.c                  |  30 ++-
 include/linux/irqdomain.h                          |   5 +
 kernel/irq/irqdomain.c                             |  20 ++
 10 files changed, 404 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sifive.yaml
 create mode 100644 drivers/gpio/gpio-sifive.c

-- 
2.7.4


             reply	other threads:[~2019-11-20  6:59 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-20  6:59 Yash Shah [this message]
2019-11-20  6:59 ` [PATCH v2 1/5] genirq: introduce irq_domain_translate_onecell Yash Shah
2019-11-20  9:34   ` Thomas Gleixner
2019-11-20 10:24     ` Marc Zyngier
2019-11-20 10:48       ` Thomas Gleixner
2019-11-20 10:38   ` Marc Zyngier
2019-11-21  8:35     ` Yash Shah
2019-11-21  8:55       ` Yash Shah
2019-11-21  9:20         ` Marc Zyngier
2019-11-20  6:59 ` [PATCH v2 2/5] irqchip: sifive: Support hierarchy irq domain Yash Shah
2019-11-22 10:17   ` Marc Zyngier
2019-11-20  6:59 ` [PATCH v2 3/5] gpio: sifive: Add DT documentation for SiFive GPIO Yash Shah
2019-11-20  6:59 ` [PATCH v2 4/5] gpio: sifive: Add GPIO driver for SiFive SoCs Yash Shah
2019-11-20 10:01   ` Bartosz Golaszewski
2019-11-21  8:32     ` Yash Shah
2019-11-20  6:59 ` [PATCH v2 5/5] riscv: dts: Add DT support for SiFive FU540 GPIO driver Yash Shah
2019-11-20  9:14   ` Andreas Schwab
2019-11-21  8:26     ` Yash Shah

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