Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f365be09 authored by Bjorn Andersson's avatar Bjorn Andersson Committed by Linus Walleij
Browse files

pinctrl: Add Qualcomm TLMM driver 



This adds a pinctrl, pinmux, pinconf and gpiolib driver for the
Qualcomm TLMM block.

Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent a4d8d6da

drivers/pinctrl/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -203,6 +203,12 @@ config PINCTRL_IMX28 
	bool

	select PINCTRL_MXS



config PINCTRL_MSM

	bool

	select PINMUX

	select PINCONF

	select GENERIC_PINCONF



config PINCTRL_NOMADIK

	bool "Nomadik pin controller driver"

	depends on ARCH_U8500 || ARCH_NOMADIK

drivers/pinctrl/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o 
obj-$(CONFIG_PINCTRL_IMX23)	+= pinctrl-imx23.o

obj-$(CONFIG_PINCTRL_IMX25)	+= pinctrl-imx25.o

obj-$(CONFIG_PINCTRL_IMX28)	+= pinctrl-imx28.o

obj-$(CONFIG_PINCTRL_MSM)	+= pinctrl-msm.o

obj-$(CONFIG_PINCTRL_NOMADIK)	+= pinctrl-nomadik.o

obj-$(CONFIG_PINCTRL_STN8815)	+= pinctrl-nomadik-stn8815.o

obj-$(CONFIG_PINCTRL_DB8500)	+= pinctrl-nomadik-db8500.o

drivers/pinctrl/pinctrl-msm.c

0 → 100644
+1028 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/pinctrl/pinctrl-msm.h

0 → 100644
+122 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2013, Sony Mobile Communications AB.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#ifndef __PINCTRL_MSM_H__

#define __PINCTRL_MSM_H__



#include <linux/pinctrl/pinctrl.h>

#include <linux/pinctrl/pinmux.h>

#include <linux/pinctrl/pinconf.h>

#include <linux/pinctrl/machine.h>



/**

 * struct msm_function - a pinmux function

 * @name:    Name of the pinmux function.

 * @groups:  List of pingroups for this function.

 * @ngroups: Number of entries in @groups.

 */

struct msm_function {

	const char *name;

	const char * const *groups;

	unsigned ngroups;

};



/**

 * struct msm_pingroup - Qualcomm pingroup definition

 * @name:                 Name of the pingroup.

 * @pins:	          A list of pins assigned to this pingroup.

 * @npins:	          Number of entries in @pins.

 * @funcs:                A list of pinmux functions that can be selected for

 *                        this group. The index of the selected function is used

 *                        for programming the function selector.

 *                        Entries should be indices into the groups list of the

 *                        struct msm_pinctrl_soc_data.

 * @ctl_reg:              Offset of the register holding control bits for this group.

 * @io_reg:               Offset of the register holding input/output bits for this group.

 * @intr_cfg_reg:         Offset of the register holding interrupt configuration bits.

 * @intr_status_reg:      Offset of the register holding the status bits for this group.

 * @intr_target_reg:      Offset of the register specifying routing of the interrupts

 *                        from this group.

 * @mux_bit:              Offset in @ctl_reg for the pinmux function selection.

 * @pull_bit:             Offset in @ctl_reg for the bias configuration.

 * @drv_bit:              Offset in @ctl_reg for the drive strength configuration.

 * @oe_bit:               Offset in @ctl_reg for controlling output enable.

 * @in_bit:               Offset in @io_reg for the input bit value.

 * @out_bit:              Offset in @io_reg for the output bit value.

 * @intr_enable_bit:      Offset in @intr_cfg_reg for enabling the interrupt for this group.

 * @intr_status_bit:      Offset in @intr_status_reg for reading and acking the interrupt

 *                        status.

 * @intr_target_bit:      Offset in @intr_target_reg for configuring the interrupt routing.

 * @intr_raw_status_bit:  Offset in @intr_cfg_reg for the raw status bit.

 * @intr_polarity_bit:    Offset in @intr_cfg_reg for specifying polarity of the interrupt.

 * @intr_detection_bit:   Offset in @intr_cfg_reg for specifying interrupt type.

 * @intr_detection_width: Number of bits used for specifying interrupt type,

 *                        Should be 2 for SoCs that can detect both edges in hardware,

 *                        otherwise 1.

 */

struct msm_pingroup {

	const char *name;

	const unsigned *pins;

	unsigned npins;



	unsigned funcs[8];



	s16 ctl_reg;

	s16 io_reg;

	s16 intr_cfg_reg;

	s16 intr_status_reg;

	s16 intr_target_reg;



	unsigned mux_bit:5;



	unsigned pull_bit:5;

	unsigned drv_bit:5;



	unsigned oe_bit:5;

	unsigned in_bit:5;

	unsigned out_bit:5;



	unsigned intr_enable_bit:5;

	unsigned intr_status_bit:5;



	unsigned intr_target_bit:5;

	unsigned intr_raw_status_bit:5;

	unsigned intr_polarity_bit:5;

	unsigned intr_detection_bit:5;

	unsigned intr_detection_width:5;

};



/**

 * struct msm_pinctrl_soc_data - Qualcomm pin controller driver configuration

 * @pins:       An array describing all pins the pin controller affects.

 * @npins:      The number of entries in @pins.

 * @functions:  An array describing all mux functions the SoC supports.

 * @nfunctions: The number of entries in @functions.

 * @groups:     An array describing all pin groups the pin SoC supports.

 * @ngroups:    The numbmer of entries in @groups.

 * @ngpio:      The number of pingroups the driver should expose as GPIOs.

 */

struct msm_pinctrl_soc_data {

	const struct pinctrl_pin_desc *pins;

	unsigned npins;

	const struct msm_function *functions;

	unsigned nfunctions;

	const struct msm_pingroup *groups;

	unsigned ngroups;

	unsigned ngpios;

};



int msm_pinctrl_probe(struct platform_device *pdev,

		      const struct msm_pinctrl_soc_data *soc_data);

int msm_pinctrl_remove(struct platform_device *pdev);



#endif