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path: root/drivers/pinctrl/pinctrl-imx.h
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2013-08-16pinctrl: imx: Use struct type for pinsSascha Hauer
The i.MX pinctrl driver uses 5 different arrays for storing the informations for pins. This requires five allocations. Instead, use a struct type which is more cache friendly, readable and requires less allocations. One array of integers is still needed since the pinctrl framework forces us to maintain it. This also adds checks whether the allocations are succesful which were missing. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16pinctrl: imx: add VF610 support to imx pinctrl frameworkJingchang Lu
On some platforms such as VF610, offset of mux and pad ctrl register may be zero, and the mux_mode and config_val are in one 32-bit register. This patch adds support to imx core pinctrl framework to handle these cases. Signed-off-by: Jingchang Lu <b35083@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09pinctrl: imx: move hard-coding data into device treeShawn Guo
Currently, all imx pinctrl drivers maintain a big array of struct imx_pin_reg which hard-codes data like register offset and mux mode setting for each pin function. Every time a new imx SoC support is added, we need to add such a big mount of data. With moving to single kernel build, it's only matter of time to be blamed on memory consuming. With DTC pre-processor support in place, the patch moves all these data into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and changing the PIN_FUNC_ID parsing code a little bit. The pin id gets re-numbered based on mux register offset, or config register offset if the pin has no mux register, so that kernel can identify the pin id from register offsets provided by device tree. As a bonus point of the change, those arbitrary magic numbers standing for particular PIN_FUNC_ID in device tree sources are now replaced by macros to improve the readability of dts files. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-02pinctrl: pinctrl-imx: add imx pinctrl core driverDong Aisheng
The driver has mux and config support while the gpio is still not supported. For select input setting, the driver will handle it internally and do not need user to take care of it. The pinctrl-imx core driver will parse the dts file and dynamically create the pinmux functions and groups. Each IMX SoC pinctrl driver should register pins with a pin register map including mux register and config register and select input map to core for proper operations. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>