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path: root/drivers/pinctrl
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2013-08-14pinctrl: pinconf-generic: add generic APIs for mapping pinctrl nodeLaxman Dewangan
Add generic APIs to map the DT node and its sub node in pinconf generic driver. These APIs can be used from driver to parse the DT node who uses the pinconf generic APIs for defining their nodes. Changes from V1: - Add generic property for pins and functions in pinconf-generic. - Add APIs to map the DT and subnode. - Move common utils APIs to the pinctrl-utils from this file. - Update the binding document accordingly. Changes from V2: - Rebased the pinctrl binding doc on top of Stephen's cleanup. - Rename properties "pinctrl-pins" and "pinctrl-function" to "pins" and "function". Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14pinctrl: add utility functions for add map/configsLaxman Dewangan
Some of pincontrol driver needs the utility function to create map list. The utility function needed for adding mux, configs etc. In place of duplicating this in each driver, add the common utility function in common file and use from device specific driver. This will reduce the duplicating of code across drivers. Changes from V1: - Add this files in this patch and add common utility APIs to here. Changes from V2: - Nothing in code. - Added Reviewed by Stephen. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14pinctrl: pinmux: Don't free pins requested by other devices in ↵Sonic Zhang
pinmux_disable_setting. One peripheral may share part of its pins with the 2nd peripheral and the other pins with the 3rd. If it requests all pins when part of them has already be requested and owned by the 2nd peripheral, this request fails and pinmux_disable_setting() is called. The pinmux_disable_setting() frees all pins of the first peripheral without checking if the pin is owned by itself or the 2nd, which results in the malfunction of the 2nd peripheral driver. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: nomadik: delete ancient pin control APILinus Walleij
The pin control subsystem was created to do away with custom pin control APIs such as this one. It was kept for backward-compatibility but is completely unused in the current kernel, so let's delete it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: sirf: add missing __iomem annotationJingoo Han
Added missing __iomem annotation in order to fix the following sparse warnings: drivers/pinctrl/sirf/pinctrl-sirf.c:846:14: warning: incorrect type in assignment (different address spaces) drivers/pinctrl/sirf/pinctrl-sirf.c:846:14: expected void *regs drivers/pinctrl/sirf/pinctrl-sirf.c:846:14: got void [noderef] <asn:2>* drivers/pinctrl/sirf/pinctrl-sirf.c:869:33: warning: incorrect type in assignment (different address spaces) drivers/pinctrl/sirf/pinctrl-sirf.c:869:33: expected void [noderef] <asn:2>*regs drivers/pinctrl/sirf/pinctrl-sirf.c:869:33: got void *regs drivers/pinctrl/sirf/pinctrl-sirf.c:909:17: warning: incorrect type in argument 1 (different address spaces) drivers/pinctrl/sirf/pinctrl-sirf.c:909:17: expected void volatile [noderef] <asn:2>*addr drivers/pinctrl/sirf/pinctrl-sirf.c:909:17: got void *regs Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: pinconf: fix comparison of different typesJingoo Han
Fix the following sparse warning: drivers/pinctrl/pinconf.c:521:20: error: incompatible types in comparison expression (different type sizes) Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: at91: choose appropriate handler for level interruptsBoris BREZILLON
The current implementation handle both edge and level interrupts with the 'handle_simple_irq' handler. Level interrupts are active as long as the pin stays at the configured level (low or high). In this case we have to use 'handle_level_irq' which mask the interrupt until the handle has treated it. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Tested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: st: Staticize local symbolsSachin Kamat
Symbols used only in this file are made static. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: st: Convert to use devm_ioremap_resourceSachin Kamat
devm_request_and_ioremap is deprecated. Use devm_ioremap_resource instead. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: imx: work around select input quirkShawn Guo
The select input for some pin may not be implemented using the regular select input register but the general purpose register. A real example is that imx6q designers found the select input for USB OTG ID pin is missing at the very late stage, and can not add a new select input register but have to use a general purpose register bit to implement it. The patch adds a workaround for such select input quirk by interpreting the input_val cell of pin function ID in a different way, so that all the info that needed for setting up select input bits in general purpose register could be decoded from there. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: sunxi: Fix incorrect NULL checkSachin Kamat
*map should be tested for NULL instead of map as kmalloc pointer is assigned to it. This also fixes a potential null pointer dereference bug later in the code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: shut up a couple of pinctrl warningsRussell King - ARM Linux
So, I notice that we get a couple of warnings from the pinctrl code: drivers/pinctrl/pinconf.c: In function 'pinconf_dbg_config_print': drivers/pinctrl/pinconf.c:433:36: warning: 'configs' may be used uninitialized in this function drivers/pinctrl/pinconf.c: In function 'pinconf_dbg_config_write': drivers/pinctrl/pinconf.c:511:36: warning: 'configs' may be used uninitialized in this function While the compiler might not be able to work out that "configs" is safe, the code doesn't lend itself very well to identifying that fact when reading it either. This can be trivially solved by a slight restructuring of the code - which also reduces the LOC. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07drivers/pinctrl: don't check resource with devm_ioremap_resourceWolfram Sang
devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: rockchip: include correct clk headerHeiko Stübner
The correct header to include for clock handling is clk.h . clk-provider.h should not be used in simple clock consumers. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: sunxi: Add spinlocksMaxime Ripard
The current code use no locking at all, which is obviously not that great and can lead to concurrency issues, especially with the newer SMP SoCs from Allwinner. Add some locking where it's needed. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2013-08-07pinctrl: sunxi: Fix gpio_set behaviourMaxime Ripard
The current gpio_set function is ignoring the previous value set in the GPIO value register, which leads in erasing the values already set for the other GPIOs in the same bank when setting the value of a given GPIO. Add the usual read/mask/write pattern to fix this brown paper bag bug. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2013-08-07pinctrl: sunxi: Read register before writing to it in irq_set_typeMaxime Ripard
The current irq_set_type code doesn't read the current register value before writing to it, leading to the older programmed values being overwritten and everything but the latest value being reset. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2013-07-29Merge branch 'pinmux/next/fixes' of git://linuxtv.org/pinchartl/fbdev into develLinus Walleij
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-07-29Merge branch 'pinmux/next/pin-no-gpio' of git://linuxtv.org/pinchartl/fbdev ↵Linus Walleij
into devel Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-07-29sh-pfc: r8a7790: Add VIN pin groups and functionsShinobu Uehara
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com> Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Add USB pin groups and functionsShinobu Uehara
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Add SCIF2 pin groups and functionsLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Add MSIOF pin groups and functionsKunihito Higashiyama
Signed-off-by: Kunihito Higashiyama <kunihito.higashiyama.ur@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Sort pin groups and functions alphabeticallyLaurent Pinchart
Navigating through the source code is hard enough without having to manually search for groups and functions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Fix miscellaneous pinmux configuration tables mistakesShinya Kuribayashi
Fix erroneous entries in the pinmux configuration tables that affect HSCIF, I2C, LBSC, SCIF, SSI and VIN operation. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Add SCIF2 pins configuration supportShinya Kuribayashi
Update the pinmux configuration tables to support the SCIF2 pins (TX2/TX2_B, RX2/RX2_B, SCK2). Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Add TCLK1 pin configuration supportShinya Kuribayashi
Update the pinmux configuration tables to support the TCLK1 pin. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Swap SCIFA2_RXD_B and HRX0_C configurationsShinya Kuribayashi
The SCIFA2 RXD_B and HRX0_C pins have their pinmux configuration data swapped, fix it. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Remove deprecated SPV_EVEN pinShinya Kuribayashi
The pins have been removed from the datasheet, remove them here as well. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Remove deprecated RDS pinsShinya Kuribayashi
The pins have been removed from the datasheet, remove them here as well. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Remove deprecated Ethernet MII/RMII pinsShinya Kuribayashi
The pins have been removed from the datasheet, remove them here as well. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Remove trailing '_TANS' string from RTS/CTS pinsShinya Kuribayashi
The RTS/CTS pins have been renamed in the datasheet, rename them here as well. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7790: Rename I2C SDA/SCL pinsShinya Kuribayashi
The I2C pins have been renamed in the datasheet, rename them here as well. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: r8a7779: Add I2C pin groupsPhil Edworthy
Add all I2C pin groups to R8A7779 PFC driver. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: sh73a0: Remove EXT_IRQ16L and EXT_IRQ16H macrosLaurent Pinchart
The macros expand to irq_pin() calls and where most probably introduced from a copy&paste of the sh7372 PFC data. Replace them with irq_pin(). Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se>
2013-07-29sh-pfc: sh7372: Replace <mach/irqs.h> with <linux/sh_intc.h>Laurent Pinchart
The mach/irqs.h header is included only to get the evt2irq macro definition. The macro is defined in linux/sh_intc.h, include it directly instead of the mach-specific header. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se>
2013-07-29sh-pfc: Remove unneeded mach/<soc>.h includesLaurent Pinchart
The SoC-specific mach/<soc>.h headers are included needlesly. Don't include them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Magnus Damm <damm@opensource.se>
2013-07-29sh-pfc: Support pins not associated with a GPIO portLaurent Pinchart
Pins with selectable functions but without a GPIO port can't be named PORT_# or GP_#_#. Add a SH_PFC_PIN_NAMED macro to declare such pins in the pinmux pins array, naming them with the PIN_ prefix followed by the pin physical position. In order to make sure not to register those pins as GPIOs, add a SH_PFC_PIN_CFG_NO_GPIO pin flag to denote pins without a GPIO port. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Compute pin ranges automaticallyLaurent Pinchart
Remove the manually specified ranges from PFC SoC data and compute the ranges automatically. This prevents ranges from being out-of-sync with pins definitions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Rename struct sh_pfc nr_pins field to nr_gpio_pinsLaurent Pinchart
The field contains the number of pins with an associated GPIO port. This is currently equal to the total number of pins but will be modified when adding support for pins without a GPIO port. Rename the field accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Add pin number to struct sh_pfc_pinLaurent Pinchart
The pin number is usually equal to the GPIO number but can differ when GPIO numbering is sparse. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Pass the pin number down to the port function macroLaurent Pinchart
The PORT_1 macro invokes a macro passed as a parameter. Pass the pin number down to that macro at the bottom of the call stack. This will be used to compute the pin ranges automatically. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Add port numbers to the CPU_ALL_PORT macroLaurent Pinchart
Pass down the port number down to the PORT_1 macro. The port number will be used to compute the pin ranges automatically. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Don't duplicate argument to PINMUX_GPIO macroLaurent Pinchart
The PINMUX_GPIO macro takes a port name and a data mark, respectively of the form GPIO_name and name_DATA. Modify the macro to take the name as a single argument and derive the port name and data mark from it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: shx3: Remove shx3_ prefix from static symbolsLaurent Pinchart
Unlike all other PFC SoC data, the shx3 data prefix all static symbols with shx3_. Remove the prefix to be consistent with the other source files. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: sh7734: Use the common GP port style macrosLaurent Pinchart
The SoC has a bank-style PFC. Replace the custom-defined macros with common macros from sh-pfc.h. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-07-29sh-pfc: Consolidate pin definition macrosLaurent Pinchart
Move the pin definition macros to a common header file. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Consolidate PFC SoC data macrosLaurent Pinchart
Move macros defined in several SoC data files to a common location and document them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Rename gpio arguments to be consistent with the rest of the codeLaurent Pinchart
The gpio_get_data_reg() and gpio_setup_data_reg() functions both take an argument named gpio. The argument contains a GPIO offset for the first function and a pin index for the second one. Rename them to offset and idx respectively to match the rest of the code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
2013-07-29sh-pfc: Replace pinmux_enum_id typedef with u16Laurent Pinchart
The typedef only conceals the real variable type without bringing any additional value (see Documentation/CodingStyle, section 5.b). Moreover, it polutes the pinmux namespace. Replace it with the integer type it used to hide. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
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