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Message-Id: <1404745893-6379-4-git-send-email-iivanov@mm-sol.com>
Date: Mon, 7 Jul 2014 18:11:32 +0300
From: "Ivan T. Ivanov" <iivanov@...sol.com>
To: Linus Walleij <linus.walleij@...aro.org>,
Grant Likely <grant.likely@...aro.org>,
Rob Herring <robh+dt@...nel.org>
Cc: "Ivan T. Ivanov" <iivanov@...sol.com>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-msm@...r.kernel.org
Subject: [PATCH 3/4] pinctrl: qcom: Add PM8941 and PM8941 pinctrl drivers
From: "Ivan T. Ivanov" <iivanov@...sol.com>
Add new pinctrl driver for GPIO and MPP subfunctions found in
Qualcomm PMIC chips.
Signed-off-by: Ivan T. Ivanov <iivanov@...sol.com>
---
drivers/pinctrl/Kconfig | 17 +++++++
drivers/pinctrl/Makefile | 2 +
drivers/pinctrl/pinctrl-pm8841.c | 84 +++++++++++++++++++++++++++++++++++
drivers/pinctrl/pinctrl-pm8941.c | 96 ++++++++++++++++++++++++++++++++++++++++
4 files changed, 199 insertions(+)
create mode 100644 drivers/pinctrl/pinctrl-pm8841.c
create mode 100644 drivers/pinctrl/pinctrl-pm8941.c
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 297c84d..914f43c 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -383,6 +383,23 @@ config PINCTRL_PALMAS
open drain configuration for the Palmas series devices like
TPS65913, TPS80036 etc.
+config PINCTRL_PM8841
+ tristate "Qualcomm PM8841 pin controller driver"
+ depends on OF
+ select PINCTRL_QPNP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ Qualcomm MPP subfunction block found in the Qualcomm PM8841 PMIC chip.
+
+config PINCTRL_PM8941
+ tristate "Qualcomm PM8941 pin controller driver"
+ depends on OF
+ select PINCTRL_QPNP
+ help
+ This is the pinctrl, pinmux, pinconf and gpiolib driver for the
+ Qualcomm MPP and GPIO subfunction block found in the Qualcomm PM8941
+ PMIC chip.
+
config PINCTRL_QPNP
bool
select PINMUX
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index bfbdba1..3d1fe38 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -47,6 +47,8 @@ obj-$(CONFIG_PINCTRL_STN8815) += pinctrl-nomadik-stn8815.o
obj-$(CONFIG_PINCTRL_DB8500) += pinctrl-nomadik-db8500.o
obj-$(CONFIG_PINCTRL_DB8540) += pinctrl-nomadik-db8540.o
obj-$(CONFIG_PINCTRL_PALMAS) += pinctrl-palmas.o
+obj-$(CONFIG_PINCTRL_PM8841) += pinctrl-pm8841.o
+obj-$(CONFIG_PINCTRL_PM8941) += pinctrl-pm8941.o
obj-$(CONFIG_PINCTRL_QPNP) += pinctrl-qpnp.o
obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o
diff --git a/drivers/pinctrl/pinctrl-pm8841.c b/drivers/pinctrl/pinctrl-pm8841.c
new file mode 100644
index 0000000..0e46536
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-pm8841.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/platform_device.h>
+
+#include "pinctrl-qpnp.h"
+
+#define PM8841_MPP_CNT 4
+
+static int pm8841_pinctrl_probe(struct platform_device *qdev)
+{
+ struct device *dev = &qdev->dev;
+ struct qpnp_pinctrl_info *data;
+ struct pinctrl_pin_desc *desc;
+ struct qpnp_padinfo *pads;
+ struct resource *res;
+ int idx, number;
+
+ res = platform_get_resource(qdev, IORESOURCE_REG, 0);
+ if (!res)
+ return -ENXIO;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ pads = devm_kzalloc(dev, sizeof(*pads) * PM8841_MPP_CNT, GFP_KERNEL);
+ if (!pads)
+ return -ENOMEM;
+
+ desc = devm_kzalloc(dev, sizeof(*desc) * PM8841_MPP_CNT, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+
+ data->npads = PM8841_MPP_CNT;
+ data->pads = pads;
+ data->desc = desc;
+ number = 0;
+
+ for (idx = 0; idx < PM8841_MPP_CNT; idx++, pads++, desc++) {
+ snprintf(pads->name, ARRAY_SIZE(pads->name), "mpp%d", idx + 1);
+ pads->base = res->start + (idx * 0x100);
+ desc->number = number++;
+ desc->name = pads->name;
+ }
+
+ return qpnp_pinctrl_probe(qdev, data);
+}
+
+static const struct of_device_id pm8841_pinctrl_of_match[] = {
+ { .compatible = "qcom,pm8841-pinctrl", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, pm8841_pinctrl_of_match);
+
+static struct platform_driver pm8841_pinctrl_driver = {
+ .driver = {
+ .name = "pm8841-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = pm8841_pinctrl_of_match,
+ },
+ .probe = pm8841_pinctrl_probe,
+ .remove = qpnp_pinctrl_remove,
+};
+module_platform_driver(pm8841_pinctrl_driver);
+
+MODULE_AUTHOR("Ivan T. Ivanov <iivanov@...sol.com>");
+MODULE_DESCRIPTION("Qualcomm PM8841 pin control driver");
+MODULE_ALIAS("platform:pm8841-pinctrl");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/pinctrl-pm8941.c b/drivers/pinctrl/pinctrl-pm8941.c
new file mode 100644
index 0000000..c3817e8
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-pm8941.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/platform_device.h>
+
+#include "pinctrl-qpnp.h"
+
+#define PM8941_MPP_CNT 8
+#define PM8941_GPIO_CNT 36
+#define PM8941_PAD_CNT (PM8941_MPP_CNT + PM8941_GPIO_CNT)
+
+static int pm8941_pinctrl_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct qpnp_pinctrl_info *data;
+ struct pinctrl_pin_desc *desc;
+ struct qpnp_padinfo *pads;
+ struct resource *gpios, *mpps;
+ int idx, number;
+
+ mpps = platform_get_resource(pdev, IORESOURCE_REG, 0);
+ if (!mpps)
+ return -ENXIO;
+
+ gpios = platform_get_resource(pdev, IORESOURCE_REG, 1);
+ if (!gpios)
+ return -ENXIO;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ pads = devm_kzalloc(dev, sizeof(*pads) * PM8941_PAD_CNT, GFP_KERNEL);
+ if (!pads)
+ return -ENOMEM;
+
+ desc = devm_kzalloc(dev, sizeof(*desc) * PM8941_PAD_CNT, GFP_KERNEL);
+ if (!desc)
+ return -ENOMEM;
+
+ data->npads = PM8941_PAD_CNT;
+ data->pads = pads;
+ data->desc = desc;
+ number = 0;
+
+ for (idx = 0; idx < PM8941_MPP_CNT; idx++, pads++, desc++) {
+ snprintf(pads->name, ARRAY_SIZE(pads->name), "mpp%d", idx + 1);
+ pads->base = mpps->start + (idx * 0x100);
+ desc->number = number++;
+ desc->name = pads->name;
+ }
+
+ for (idx = 0; idx < PM8941_GPIO_CNT; idx++, pads++, desc++) {
+ snprintf(pads->name, ARRAY_SIZE(pads->name), "gpio%d", idx + 1);
+ pads->base = gpios->start + (idx * 0x100);
+ desc->number = number++;
+ desc->name = pads->name;
+ }
+
+ return qpnp_pinctrl_probe(pdev, data);
+}
+
+static const struct of_device_id pm8941_pinctrl_of_match[] = {
+ { .compatible = "qcom,pm8941-pinctrl", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, pm8941_pinctrl_of_match);
+
+static struct platform_driver pm8941_pinctrl_driver = {
+ .driver = {
+ .name = "pm8941-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = pm8941_pinctrl_of_match,
+ },
+ .probe = pm8941_pinctrl_probe,
+ .remove = qpnp_pinctrl_remove,
+};
+module_platform_driver(pm8941_pinctrl_driver);
+
+MODULE_AUTHOR("Ivan T. Ivanov <iivanov@...sol.com>");
+MODULE_DESCRIPTION("Qualcomm PM8841 pin control driver");
+MODULE_ALIAS("platform:pm8941-pinctrl");
+MODULE_LICENSE("GPL v2");
--
1.8.3.2
--
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