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2016-03-08pinctrl: imx: attach iomuxc device to gpr sysconPhilipp Zabel
Commit bdb0066df96e ("mfd: syscon: Decouple syscon interface from platform devices") added the possibility to register syscon devices without associated platform device. This also removed regmap debugfs facilities, which don't work without a device. This patch associates the syscon regmap that handles the IOMUX controller's general purpose registers with the pinctrl device so that the GPR registers appear in the regmap debugfs directory again. For example, on i.MX6Q the GPR registers now can be read from /sys/kernel/debug/regmap/20e0000.iomuxc-gpr/registers. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-08pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsingPhil Elwell
The DT bindings for pinctrl-bcm2835 allow both the function and pull to contain either one entry or one per pin. However, an error in the DT parsing can cause failures if the number of pulls differs from the number of functions. Cc: stable@vger.kernel.org Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Phil Elwell <phil@raspberrypi.org> Reviewed-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-07pinctrl: lpc1850-scu: document nxp,gpio-pin-interruptJoachim Eastwood
Update devicetree documention for lpc1850-scu with the new nxp,gpio-pin-interrupt property. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-07pinctrl: lpc18xx: add nxp,gpio-pin-interrupt propertyJoachim Eastwood
Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-07pinctrl: core: create nolock version of pinctrl_find_gpio_range_from_pinJoachim Eastwood
pinctrl_find_gpio_range_from_pin takes the pctldev->mutex but so does pinconf_pins_show and this will cause a deadlock if pinctrl_find_gpio_range_from_pin is used in .pin_config_get callback. Create a nolock version of pinctrl_find_gpio_range_from_pin to allow pin to gpio lookup to be used from pinconf_pins_show. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-07pinctrl: lpc18xx: ensure ngroups is initialized at correct placeColin Ian King
The initialization of ngroups is occurring at the end of the first iteration of the outer loop, which means that the assignment pins[ngroups++] = i is potentially indexing into a region outside of array pins because ngroups is not initialized. Instead, initialize ngroups in the inner loop before the first inner loop iteration. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-03Merge branch 'sh-pfc-for-v4.6' of ↵Linus Walleij
git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
2016-02-26pinctrl: sh-pfc: r8a7795: Add CAN FD supportRamesh Shanmugasundaram
This patch adds CANFD[0-1] pinmux support to r8a7795 SoC. Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-26pinctrl: sh-pfc: r8a7795: Add CAN supportRamesh Shanmugasundaram
This patch adds CAN[0-1] pinmux support to r8a7795 SoC. Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-26pinctrl: sh-pfc: r8a7794: Fix GP2[29] muxingAndrey Gusakov
GP2[29] muxing is controlled by 2-bit IP6[3:2] field, yet only 3 values are listed instead of 4... [Sergei: fixed up the formatting, renamed, added the changelog.] Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-26pinctrl: sh-pfc: Use ARCH_RENESASSimon Horman
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE. This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-25pinctrl: mediatek/7623: delete unnecessary .ownerLinus Walleij
This is set by the device core. Cc: John Crispin <blogic@openwrt.org> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25pinctrl: sunxi: Add missing H3 R_PIO binding documentationKrzysztof Adamski
allwinner,sun8i-h3-r-pinctrl was added by commit ba83a11104ae ("pinctrl: sunxi: Add H3 R_PIO controller support") but the patch was missing proper binding documentation. This patch fixes this issue. Signed-off-by: Krzysztof Adamski <k@japko.eu> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-19pinctrl: mediatek: Add Pinctrl/GPIO/EINT driver for MT7623John Crispin
Add the driver and header files required to make pinctrl work on MediaTek MT7623. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-19pinctrl: mediatek: Modify pinctrl bindings for mt7623John Crispin
Signed-off-by: John Crispin <blogic@openwrt.org> Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-19Merge branch 'sh-pfc-for-v4.6' of ↵Linus Walleij
git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
2016-02-18pinctrl: mediatek: add input-enable and direction setting for eint resourcesBiao Huang
To use pin as eint, user should make sure that: 1. pin is set to right mode, this is done in .irq_request_resources implementation already. 2. direction of the pin is input, which should call GPIO API to set pin to input gpio. We add what step 2 do to .irq_request_resources so that user doesn't need call GPIO API any more when pin for eint usage. Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-18pinctrl: mediatek: add input-enable setting in gpio_request_enableBiao Huang
Since input-disable cuts off input signal of gpio, add input-enable setting in .gpio_request_enable implementation to ensure gpio function well Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-18pinctrl: sh-pfc: r8a7794: Add EtherAVB pin groupsSergei Shtylyov
Add the EtherAVB pin groups to the R8A7794 PFC driver. Based on the patches by Mitsuhiro Kimura <mitsuhiro.kimura.kc@renesas.com>. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-18pinctrl: sh-pfc: Rework PFC GPIO supportMagnus Damm
The sh-pfc pinctrl driver is currently handling SoC-specific PFC hardware blocks on ARM64, ARM and SH architectures. For older SoCs using SH cores and some 32-bit ARM SoCs the PFC hardware also provides GPIO functionality. On the majority of 32-bit ARM SoCs from Renesas and so far all ARM64 SoCs the GPIO feature is provided by separate hardware blocks. So far GPIO support in the PFC driver has been compiled-in for the majority of the SoCs, but with this patch applied the SoCs with PFC support may select from one of the following: - CONFIG_PINCTRL_SH_PFC - Used if PFC lacks GPIO hardware - CONFIG_PINCTRL_SH_PFC_GPIO - Used if PFC includes GPIO support This patch results in the following changes: - The GPIO functionality is only compiled-in on relevant SoCs - The number of lines of code is reduced Build tested using the following configurations: - r8a7795 -> CONFIG_PINCTRL_SH_PFC_GPIO=n -> OK (ARM64) - r8a7790 -> CONFIG_PINCTRL_SH_PFC_GPIO=n -> OK (ARM) - r8a7790 + r8a7740 -> CONFIG_PINCTRL_SH_PFC_GPIO=y -> OK (ARM) - r8a7740 -> CONFIG_PINCTRL_SH_PFC_GPIO=y -> OK (ARM) - sh7751 -> CONFIG_PINCTRL_SH_PFC=n -> OK (SH rts7751r2d1) - sh7724 -> CONFIG_PINCTRL_SH_PFC_GPIO=y -> OK (SH ecovec24) Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [geert: s/def_bool n/bool/] Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-18pinctrl: sh-pfc: r8a7795: Add PWM supportTakeshi Kihara
This patch adds PWM[0-6] pinmux support to r8a7795 SoC. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> [uli: adapted to mainline PFC driver] Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-18pinctrl: sh-pfc: r8a7795: Add support for INTC-EX IRQ pinsMagnus Damm
Most pins on the r8a7795 SoC can be configured in GPIO mode for interrupt and GPIO functionality, while a couple of them can also be routed to the INTC-EX hardware block (formerly known as IRQC). On r8a7795 the INTC-EX hardware handles pins IRQ0 -> IRQ5 and this patch adds support for them to the PFC driver as "intc_ex_irqN". Tested on r8a7795 Salvator-X with an external loop back adapter on EXIO_D that connects pin 9 (IRQ2/GP2_02) and pin 26 (ExA22/GP2_06). Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-18pinctrl: sh-pfc: r8a7794: Add audio clock pin groupsRyo Kataoka
Add the audio clock pin groups to the R8A7794 PFC driver. [Sergei: fixed pin group names to reflect the reality, fixed pin names in the comments to *_pins[], lowercased the separator comment, resolved rejects, added the changelog, renamed the patch.] Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-18pinctrl: sh-pfc: r8a7794: Add SSI pin groupsRyo Kataoka
Add the SSI pin groups to the R8A7794 PFC driver. [Sergei: fixed inconsistent alternate pin group naming, split SSI5/6 pin groups into data/control ones, moved SSI7 data B group to its proper place, fixed pin names in the comments to *_pins[], extended Cogent Embedded's copyright, added the changelog, renamed the patch.] Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-17pinctrl: mtk2701: skip setting .ownerLinus Walleij
The device core will handle this and Coccinelle complains. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-16pinctrl: qcom: ipq4019: Add IPQ4019 pinctrl supportVaradarajan Narayanan
Add pinctrl driver support for IPQ4019 platform Signed-off-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> [Dropped .owner assignment] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-15pinctrl: mediatek: fix handling return value of mtk_pmx_find_gpio_modeAndrzej Hajda
The function can return negative values, so its result should be assigned to signed variable. The problem has been detected using coccinelle semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci. Fixes: 59ee9c9 ('pinctrl: mediatek: Add gpio_request_enable support') Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-15pinctrl: Turn AMD support to tristateJean Delvare
The pinctrl-amd driver builds just fine as a module so give users this option. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-15pinctrl: coh901: fix initconst annotationArnd Bergmann
Clang correctly points out that the section attribute for u300_gpio_confdata is in the wrong place: drivers/pinctrl/pinctrl-coh901.c:130:37: error: '__section__' attribute only applies to functions and global variables This moves it from the type name to the variable, so it actually gets discarded. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-15pinctrl: Fix return value check in amd_gpio_probe()Wei Yongjun
In case of error, the function devm_ioremap_nocache() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-15pinctrl: zynq: fix typo in group name for qspi1Helmut Buchsbaum
Due to a typo Zynq pin controller does not set pin function of qspi1 when using function qspi1. So pin group for qspi1 has to be renamed to "qspi1_0_grp" as outlined in the corresponding bindings documentation. This also removes kernel message: zynq-pinctrl 700.pinctrl: invalid group "qspi1_0_grp" for function "qspi1" Signed-off-by: Helmut Buchsbaum <helmut.buchsbaum@gmail.com> Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-13pinctrl: mediatek: guard sub-directory with CONFIG_PINCTRL_MTKMasahiro Yamada
CONFIG_PINCTRL_MTK is more suitable than CONFIG_ARCH_MEDIATEK to guard the drivers/pinctrl/mediatek/ directory. (I renamed CONFIG_PINCTRL_MTK_COMMON to CONFIG_PINCTRL_MTK.) This allows COMPILE_TEST to descend into drivers/pinctrl/mediatek without CONFIG_ARCH_MEDIATEK define. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-12pinctrl: intel: Remove unneeded header includesJean Delvare
pinctrl-intel doesn't use anything from <linux/init.h>, <linux/acpi.h>, <linux/gpio.h> or <linux/pm.h>, so it should not include these header files. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-11pinctrl: sunxi: Use pin number when calling sunxi_pmx_setKrzysztof Adamski
sunxi_pmx_set accepts pin number and then calculates offset by subtracting pin_base from it. sunxi_pinctrl_gpio_get, on the other hand, gets offset so we have to convert it to pin number so we won't get negative value in sunxi_pmx_set. This was only used on A10 so far, where there is only one GPIO chip with pin_base set to 0 so it didn't matter. However H3 also requires this workaround but have two pinmux sections, triggering problem for PL port. Signed-off-by: Krzysztof Adamski <k@japko.eu> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-11pinctrl: sunxi: Add H3 R_PIO controller supportKrzysztof Adamski
H3 has additional PIO controller similar to what we can find on A23. It's a 12 pin port, described in H3 Datasheet rev 1.1, pages 345-350. Signed-off-by: Krzysztof Adamski <k@japko.eu> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-10pinctrl: rockchip: add support for the rk3399David Wu
The pinctrl of rk3399 is much different from other's, especially the 3bits of drive strength. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-10pinctrl: uniphier: add COMPILE_TEST optionMasahiro Yamada
Add COMPILE_TEST for the compilation test coverage. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-09Merge branch 'devel-mt2701' into develLinus Walleij
2016-02-09pinctrl: stm32: Fix compile testing selectionMaxime Coquelin
While selecting the driver for compile testing seemed possible, the driver was not compiled because the driver directory was only added if ARCH_STM32 was selected. This patch now makes the pinctrl Makefile to add stm32 directory if PINCTRL_STM32 is selected. Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-09pinctrl: stm32: Remove dependency with DT bindings header filesMaxime Coquelin
Some macros where defined in DT bindings headers, whereas only used in the driver. This patch moves these macros to the driver side. Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-08pinctrl: sh-pfc: r8a7795: Add USB2.0 host supportTakeshi Kihara
This patch adds USB[0-2] (USB2.0 host) pinmux support to r8a7795 SoC. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-02-08pinctrl: sh-pfc: r8a7795: Remove bits SEL_VSP_1 and SEL_VSP_0Geert Uytterhoeven
Cfr. Manual Errata for Rev 0.50 of the R-Car Gen3 datasheet. This has no user-visible impact, as the definitions were not really used. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-08pinctrl: sh-pfc: r8a7795: Rename SSI_{WS,SCK}0129 to SSI_{WS,SCK}01239Geert Uytterhoeven
Cfr. Manual Errata for Rev 0.50 of the R-Car Gen3 datasheet. This has no user-visible impact, as the string used for configuration ("ssi01239_ctrl") was already correct. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-08pinctrl: sh-pfc: Rename PINMUX_IPSR_DATA() to PINMUX_IPSR_GPSR()Geert Uytterhoeven
This macro describes a pinmux configuration that needs configuration in both a Peripheral Function Select Register (IPSR) and in a GPIO/Peripheral Function Select Register 1 (GPSR). Reflect that in the macro name for clarity. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-02-08pinctrl: sh-pfc: Improve pinmux macros documentationGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-02-05pinctrl: pinctrl-pic32: Add PIC32 pin control driverJoshua Henderson
Add a driver for the pin controller present on the Microchip PIC32 including the specific variant PIC32MZDA. This driver provides pinmux and pinconfig operations as well as GPIO and IRQ chips for the GPIO banks. Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-05pinctrl: Add DT bindings for PIC32 pin control and GPIOJoshua Henderson
Document the devicetree bindings for PINCTRL and GPIO found on Microchip PIC32 class devices. Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Rob Herring <robh@kernel.org> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-05pinctrl: stm32: fix compile error and modernizeLinus Walleij
- Fix the dev->parent assignment compile error - Use gpiochip_get_data() to get the data pointer for the banks Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-05pinctrl: tegra: move Tegra pinctrl drivers to sub-directoryMasahiro Yamada
Tegra has several pinctrl drivers. Now it is reasonable enough to move them into drivers/pinctrl/tegra/. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-05pinctrl: mediatek: Add gpio_request_enable supportBiao Huang
Implement the .gpio_request_enable() callbacks in struct pinmux_ops in mediatek pinctrl driver. Make sure that when gpio_request is called, GPIO on the pin is enabled. Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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