Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760256Ab3DBElI (ORCPT ); Tue, 2 Apr 2013 00:41:08 -0400 Received: from server.prisktech.co.nz ([115.188.14.127]:58563 "EHLO server.prisktech.co.nz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760121Ab3DBElB (ORCPT ); Tue, 2 Apr 2013 00:41:01 -0400 From: Tony Prisk To: linus.walleij@linaro.org Cc: swarren@wwwdotorg.org, linux-arm-kernel@lists.infradead.org, vt8500-wm8505-linux-kernel@googlegroups.com, linux-kernel@vger.kernel.org, Tony Prisk Subject: [PATCHv4 RESEND 0/6] arm: vt8500: Add support for pinctrl/gpio module Date: Tue, 2 Apr 2013 17:40:55 +1300 Message-Id: <1364877661-26086-1-git-send-email-linux@prisktech.co.nz> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5978 Lines: 132 Sorry - got Linus W's email address wrong in first send. v4 changes: Changed as requested by Stephen Warren: Corrected the range checking in of_property_read_u32_index(). Fix configs[0] assignment in wmt_pctl_dt_node_to_map_pull(). Remove the kfree(maps) call, and use devm_kzalloc to simplify the fail path. Drop the custom .of_xlate function and use the default of_gpio_simple_xlate. Move the platform memory mapping from per-soc to common init. v3 changes: Rebased onto v3.9-rc4 Added the missing interrupt-controller info to the relevant dtsi files. Removed the gpio-vt8500.txt binding along with the gpio driver. Changes made as requested by Linux Walleij: Removed the wm,pinmux property which has caused too much confusion, and left the open-coded version in arm/arch-vt8500/vt8500.c until a proper solution is sorted out. Changes made as requested by Stephen Warren: Defined an active-low flag for gpio since its useful and we will have a use-case for it with our LCD power-on/off. v2 changes: Rebased onto v3.9-rc2 Changes made as requested by Linus Walleij: Moved the files into drivers/pinctrl/vt8500/ to keep them tidy. Changed readl/writel to *_relaxed variants. Comment indentation corrected and remove additional whitespace. Changed wmt_pctl_find_group_by_pin() error code from -1 to -EINVAL. Removed OF read indexed-u32 function to OF subsystem. General code tidy up as requested. Changes made as requested by Stephen Warren: Add binding information for interrupt generation. Move optional properties to correct location in document. This patch series removes the existing GPIO driver and replaces it with a combined pinctrl+gpio driver. Patch 1 - Add an OF function to read the nth u32 value from a property listing multiple values. Patch 2 - Increase the available GPIO space for the newly added gpios. Because there is no hardware documentation from Wondermedia we don't know how many GPIO's there actually are. New gpio pins have been located since the original GPIO driver was written, hence the increase. Patch 3 - The main pinctrl/gpio driver and the data for the 5 supported SoCs. Each SoC is different, and therefore has its own data. This design was borrowed from the Tegra pinctrl driver. The pin numbering is based on a bank+pin encoding so that when other pin functions are found later on we can add them without having to renumber existing pins. Patch 4 - Update the SoC dts(i) files to support the new pinctrl driver. Patch 5 - Remove the existing GPIO driver nodes from the dtsi's. Patch 6 - Remove the existing GPIO driver. I suspect this series may need to be broken up since there are two arm-soc patches, and 4 pinctrl/gpio patches. Patch 1 is required for the new driver to function properly. Patch 2 is independant, but required for the driver to function properly. Patches 3-4 are pinctrl/gpio patches. Patch 5-6 remove the old gpio code which is no longer required. Patch 2 could go via arm-soc if necessary. Regards Tony Prisk Tony Prisk (6): of: Add support for reading a u32 from a multi-value property. arm: vt8500: Increase available GPIOs on arch-vt8500 pinctrl: gpio: vt8500: Add pincontrol driver for arch-vt8500 arm: dts: vt8500: Update Wondermedia SoC dtsi files for pinctrl driver arm: vt8500: Remove gpio devicetree nodes gpio: vt8500: Remove arch-vt8500 gpio driver .../devicetree/bindings/gpio/gpio-vt8500.txt | 24 - .../devicetree/bindings/pinctrl/pinctrl-vt8500.txt | 57 ++ arch/arm/Kconfig | 3 +- arch/arm/boot/dts/vt8500.dtsi | 10 +- arch/arm/boot/dts/wm8505.dtsi | 10 +- arch/arm/boot/dts/wm8650.dtsi | 10 +- arch/arm/boot/dts/wm8850.dtsi | 10 +- arch/arm/mach-vt8500/Kconfig | 1 + drivers/gpio/Kconfig | 6 - drivers/gpio/Makefile | 1 - drivers/gpio/gpio-vt8500.c | 355 ----------- drivers/of/base.c | 33 ++ drivers/pinctrl/Kconfig | 1 + drivers/pinctrl/Makefile | 1 + drivers/pinctrl/vt8500/Kconfig | 52 ++ drivers/pinctrl/vt8500/Makefile | 8 + drivers/pinctrl/vt8500/pinctrl-vt8500.c | 501 ++++++++++++++++ drivers/pinctrl/vt8500/pinctrl-wm8505.c | 532 +++++++++++++++++ drivers/pinctrl/vt8500/pinctrl-wm8650.c | 370 ++++++++++++ drivers/pinctrl/vt8500/pinctrl-wm8750.c | 409 +++++++++++++ drivers/pinctrl/vt8500/pinctrl-wm8850.c | 388 ++++++++++++ drivers/pinctrl/vt8500/pinctrl-wmt.c | 620 ++++++++++++++++++++ drivers/pinctrl/vt8500/pinctrl-wmt.h | 79 +++ include/linux/of.h | 9 + 24 files changed, 3087 insertions(+), 403 deletions(-) delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-vt8500.txt create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-vt8500.txt delete mode 100644 drivers/gpio/gpio-vt8500.c create mode 100644 drivers/pinctrl/vt8500/Kconfig create mode 100644 drivers/pinctrl/vt8500/Makefile create mode 100644 drivers/pinctrl/vt8500/pinctrl-vt8500.c create mode 100644 drivers/pinctrl/vt8500/pinctrl-wm8505.c create mode 100644 drivers/pinctrl/vt8500/pinctrl-wm8650.c create mode 100644 drivers/pinctrl/vt8500/pinctrl-wm8750.c create mode 100644 drivers/pinctrl/vt8500/pinctrl-wm8850.c create mode 100644 drivers/pinctrl/vt8500/pinctrl-wmt.c create mode 100644 drivers/pinctrl/vt8500/pinctrl-wmt.h -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/