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arm: mach-snapdragon: add pinctrl driver for db820c

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Add pinctrl driver for Dragonboard820c, currently with only
one mux func to initialize pins for serial console.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
This commit is contained in:
Ramon Fried 2019-01-12 11:47:25 +02:00 committed by Tom Rini
parent 604aa9d30b
commit 94268f1ab2
4 changed files with 61 additions and 3 deletions
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5
arch/arm/mach-snapdragon/Makefile
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@ -6,8 +6,9 @@ obj-$(CONFIG_TARGET_DRAGONBOARD820C) += clock-apq8096.o
obj-$(CONFIG_TARGET_DRAGONBOARD820C) += sysmap-apq8096.o
obj-$(CONFIG_TARGET_DRAGONBOARD410C) += clock-apq8016.o
obj-$(CONFIG_TARGET_DRAGONBOARD410C) += sysmap-apq8016.o
obj-$(CONFIG_TARGET_DRAGONBOARD410C) += pinctrl-apq8016.o
obj-$(CONFIG_TARGET_DRAGONBOARD410C) += pinctrl-snapdragon.o
obj-y += misc.o
obj-y += clock-snapdragon.o
obj-y += dram.o
obj-y += pinctrl-snapdragon.o
obj-y += pinctrl-apq8016.o
obj-y += pinctrl-apq8096.o

56
arch/arm/mach-snapdragon/pinctrl-apq8096.c Normal file
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@ -0,0 +1,56 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Qualcomm APQ8096 pinctrl
*
* (C) Copyright 2019 Ramon Fried <ramon.fried@gmail.com>
*
*/
#include "pinctrl-snapdragon.h"
#include <common.h>
#define MAX_PIN_NAME_LEN 32
static char pin_name[MAX_PIN_NAME_LEN];
static const char * const msm_pinctrl_pins[] = {
"SDC1_CLK",
"SDC1_CMD",
"SDC1_DATA",
"SDC2_CLK",
"SDC2_CMD",
"SDC2_DATA",
"SDC1_RCLK",
};
static const struct pinctrl_function msm_pinctrl_functions[] = {
{"blsp_uart8", 2},
};
static const char *apq8096_get_function_name(struct udevice *dev,
unsigned int selector)
{
return msm_pinctrl_functions[selector].name;
}
static const char *apq8096_get_pin_name(struct udevice *dev,
unsigned int selector)
{
if (selector < 150) {
snprintf(pin_name, MAX_PIN_NAME_LEN, "GPIO_%u", selector);
return pin_name;
} else {
return msm_pinctrl_pins[selector - 150];
}
}
static unsigned int apq8096_get_function_mux(unsigned int selector)
{
return msm_pinctrl_functions[selector].val;
}
struct msm_pinctrl_data apq8096_data = {
.pin_count = 157,
.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
.get_function_name = apq8096_get_function_name,
.get_function_mux = apq8096_get_function_mux,
.get_pin_name = apq8096_get_pin_name,
};

2
arch/arm/mach-snapdragon/pinctrl-snapdragon.c
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@ -113,8 +113,8 @@ static struct pinctrl_ops msm_pinctrl_ops = {
};
static const struct udevice_id msm_pinctrl_ids[] = {
{ .compatible = "qcom,tlmm-msm8916", .data = (ulong)&apq8016_data },
{ .compatible = "qcom,tlmm-apq8016", .data = (ulong)&apq8016_data },
{ .compatible = "qcom,tlmm-apq8096", .data = (ulong)&apq8096_data },
{ }
};

1
arch/arm/mach-snapdragon/pinctrl-snapdragon.h
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@ -26,5 +26,6 @@ struct pinctrl_function {
};
extern struct msm_pinctrl_data apq8016_data;
extern struct msm_pinctrl_data apq8096_data;
#endif