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pinctrl: madera: Add configuration for Cirrus Logic CS47L15 

This adds the pinctrl configuration for the CS47L15 codec to
the madera pinctrl driver.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20190722091015.20884-2-ckeepax@opensource.cirrus.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Richard Fitzgerald 2019-07-22 10:10:14 +01:00 committed by Linus Walleij
parent f134b85177
commit b0bca3e4ee
5 changed files with 51 additions and 0 deletions
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3
drivers/pinctrl/cirrus/Kconfig
View File

@ -15,6 +15,9 @@ config PINCTRL_MADERA
select PINMUX
select GENERIC_PINCONF
config PINCTRL_CS47L15
bool
config PINCTRL_CS47L35
bool

3
drivers/pinctrl/cirrus/Makefile
View File

@ -3,6 +3,9 @@
obj-$(CONFIG_PINCTRL_LOCHNAGAR) += pinctrl-lochnagar.o
pinctrl-madera-objs := pinctrl-madera-core.o
ifeq ($(CONFIG_PINCTRL_CS47L15),y)
pinctrl-madera-objs += pinctrl-cs47l15.o
endif
ifeq ($(CONFIG_PINCTRL_CS47L35),y)
pinctrl-madera-objs += pinctrl-cs47l35.o
endif

40
drivers/pinctrl/cirrus/pinctrl-cs47l15.c Normal file
View File

@ -0,0 +1,40 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Pinctrl for Cirrus Logic CS47L15
*
* Copyright (C) 2018-2019 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*/
#include <linux/err.h>
#include <linux/mfd/madera/core.h>
#include "pinctrl-madera.h"
/*
* The alt func groups are the most commonly used functions we place these at
* the lower function indexes for convenience, and the less commonly used gpio
* functions at higher indexes.
*
* To stay consistent with the datasheet the function names are the same as
* the group names for that function's pins
*
* Note - all 1 less than in datasheet because these are zero-indexed
*/
static const unsigned int cs47l15_aif1_pins[] = { 0, 1, 2, 3 };
static const unsigned int cs47l15_aif2_pins[] = { 4, 5, 6, 7 };
static const unsigned int cs47l15_aif3_pins[] = { 8, 9, 10, 11 };
static const unsigned int cs47l15_spk1_pins[] = { 12, 13, 14 };
static const struct madera_pin_groups cs47l15_pin_groups[] = {
{ "aif1", cs47l15_aif1_pins, ARRAY_SIZE(cs47l15_aif1_pins) },
{ "aif2", cs47l15_aif2_pins, ARRAY_SIZE(cs47l15_aif2_pins) },
{ "aif3", cs47l15_aif3_pins, ARRAY_SIZE(cs47l15_aif3_pins) },
{ "pdmspk1", cs47l15_spk1_pins, ARRAY_SIZE(cs47l15_spk1_pins) },
};
const struct madera_pin_chip cs47l15_pin_chip = {
.n_pins = CS47L15_NUM_GPIOS,
.pin_groups = cs47l15_pin_groups,
.n_pin_groups = ARRAY_SIZE(cs47l15_pin_groups),
};

4
drivers/pinctrl/cirrus/pinctrl-madera-core.c
View File

@ -1004,6 +1004,10 @@ static int madera_pin_probe(struct platform_device *pdev)
pdev->dev.of_node = madera->dev->of_node;
switch (madera->type) {
case CS47L15:
if (IS_ENABLED(CONFIG_PINCTRL_CS47L15))
priv->chip = &cs47l15_pin_chip;
break;
case CS47L35:
if (IS_ENABLED(CONFIG_PINCTRL_CS47L35))
priv->chip = &cs47l35_pin_chip;

1
drivers/pinctrl/cirrus/pinctrl-madera.h
View File

@ -30,6 +30,7 @@ struct madera_pin_private {
struct pinctrl_dev *pctl;
};
extern const struct madera_pin_chip cs47l15_pin_chip;
extern const struct madera_pin_chip cs47l35_pin_chip;
extern const struct madera_pin_chip cs47l85_pin_chip;
extern const struct madera_pin_chip cs47l90_pin_chip;