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intel-gpio for v4.21-1 

Use managed resource allocation in pch and sodaville drivers.
 Switch to use for_each_set_bit() in IRQ handlers.
 Headers clean up.
 Sort headers in inclusion block alphabetically for better maintenance.
 Convert to SPDX identifier and fixing MODULE_LICENSE() when appropriate.
 Additional format fixes to rectify debug and message printing.
 
 There is a commit which had been applied to v4.20-rc4, that's why dup.
 
 - c3bc3ff9e8 MAINTAINERS: Do maintain Intel GPIO drivers via separate tree
 
 The following is an automated git shortlog grouped by driver:
 
 ich:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
  -  Join string literals back
  -  Convert pr_<level> to dev_<level>
  -  Switch to use struct device instead of platform_device
  -  Simplify error handling in ichx_write_bit()
 
 intel-mid:
  -  Convert to use SPDX identifier
  -  Remove linux/module.h and sort headers
 
 lynxpoint:
  -  Convert to use SPDX identifier
  -  Remove linux/init.h and sort headers
  -  Use for_each_set_bit() in IRQ handler
 
 MAINTAINERS:
  -  Do maintain Intel GPIO drivers via separate tree
 
 merrifield:
  -  Convert to use SPDX identifier
  -  Remove linux/init.h
 
 pch:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
  -  Remove duplicate assignments
  -  Remove redundant __func__ from debug print
  -  Use for_each_set_bit() in IRQ handler
  -  Convert to dev_pm_ops
  -  Convert to use managed functions pcim_* and devm_*
 
 sch:
  -  Convert to use SPDX identifier
  -  Remove linux/init.h and sort headers
 
 sodaville:
  -  Convert to use SPDX identifier
  -  Sort headers alphabetically
  -  Use for_each_set_bit() in IRQ handler
  -  Convert to use managed functions pcim_* and devm_*
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Merge tag 'intel-gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel

intel-gpio for v4.21-1

Use managed resource allocation in pch and sodaville drivers.
Switch to use for_each_set_bit() in IRQ handlers.
Headers clean up.
Sort headers in inclusion block alphabetically for better maintenance.
Convert to SPDX identifier and fixing MODULE_LICENSE() when appropriate.
Additional format fixes to rectify debug and message printing.

There is a commit which had been applied to v4.20-rc4, that's why dup.

- c3bc3ff9e8 MAINTAINERS: Do maintain Intel GPIO drivers via separate tree

The following is an automated git shortlog grouped by driver:

ich:
 -  Convert to use SPDX identifier
 -  Sort headers alphabetically
 -  Join string literals back
 -  Convert pr_<level> to dev_<level>
 -  Switch to use struct device instead of platform_device
 -  Simplify error handling in ichx_write_bit()

intel-mid:
 -  Convert to use SPDX identifier
 -  Remove linux/module.h and sort headers

lynxpoint:
 -  Convert to use SPDX identifier
 -  Remove linux/init.h and sort headers
 -  Use for_each_set_bit() in IRQ handler

MAINTAINERS:
 -  Do maintain Intel GPIO drivers via separate tree

merrifield:
 -  Convert to use SPDX identifier
 -  Remove linux/init.h

pch:
 -  Convert to use SPDX identifier
 -  Sort headers alphabetically
 -  Remove duplicate assignments
 -  Remove redundant __func__ from debug print
 -  Use for_each_set_bit() in IRQ handler
 -  Convert to dev_pm_ops
 -  Convert to use managed functions pcim_* and devm_*

sch:
 -  Convert to use SPDX identifier
 -  Remove linux/init.h and sort headers

sodaville:
 -  Convert to use SPDX identifier
 -  Sort headers alphabetically
 -  Use for_each_set_bit() in IRQ handler
 -  Convert to use managed functions pcim_* and devm_*
This commit is contained in:
Linus Walleij 2018-12-14 14:27:41 +01:00
Родитель 21abf10381 aaa2123169
Коммит 493872e074
8 изменённых файлов: 137 добавлений и 300 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

33
MAINTAINERS
Просмотреть файл

@ -7428,6 +7428,20 @@ S: Maintained
F: Documentation/fb/intelfb.txt
F: drivers/video/fbdev/intelfb/
INTEL GPIO DRIVERS
M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
L: linux-gpio@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git
F: drivers/gpio/gpio-ich.c
F: drivers/gpio/gpio-intel-mid.c
F: drivers/gpio/gpio-lynxpoint.c
F: drivers/gpio/gpio-merrifield.c
F: drivers/gpio/gpio-ml-ioh.c
F: drivers/gpio/gpio-pch.c
F: drivers/gpio/gpio-sch.c
F: drivers/gpio/gpio-sodaville.c
INTEL GVT-g DRIVERS (Intel GPU Virtualization)
M: Zhenyu Wang <zhenyuw@linux.intel.com>
M: Zhi Wang <zhi.a.wang@intel.com>
@ -7438,12 +7452,6 @@ T: git https://github.com/intel/gvt-linux.git
S: Supported
F: drivers/gpu/drm/i915/gvt/
INTEL PMIC GPIO DRIVER
R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
S: Maintained
F: drivers/gpio/gpio-*cove.c
F: drivers/gpio/gpio-msic.c
INTEL HID EVENT DRIVER
M: Alex Hung <alex.hung@canonical.com>
L: platform-driver-x86@vger.kernel.org
@ -7531,12 +7539,6 @@ W: https://01.org/linux-acpi
S: Supported
F: drivers/platform/x86/intel_menlow.c
INTEL MERRIFIELD GPIO DRIVER
M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-merrifield.c
INTEL MIC DRIVERS (mic)
M: Sudeep Dutt <sudeep.dutt@intel.com>
M: Ashutosh Dixit <ashutosh.dixit@intel.com>
@ -7569,6 +7571,13 @@ F: drivers/platform/x86/intel_punit_ipc.c
F: arch/x86/include/asm/intel_pmc_ipc.h
F: arch/x86/include/asm/intel_punit_ipc.h
INTEL PMIC GPIO DRIVERS
M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git
F: drivers/gpio/gpio-*cove.c
F: drivers/gpio/gpio-msic.c
INTEL MULTIFUNCTION PMIC DEVICE DRIVERS
R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
S: Maintained

73
drivers/gpio/gpio-ich.c
Просмотреть файл

@ -1,32 +1,18 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Intel ICH6-10, Series 5 and 6, Atom C2000 (Avoton/Rangeley) GPIO driver
*
* Copyright (C) 2010 Extreme Engineering Solutions.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/ioport.h>
#include <linux/mfd/lpc_ich.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/mfd/lpc_ich.h>
#include <linux/bitops.h>
#define DRV_NAME "gpio_ich"
@ -100,7 +86,7 @@ struct ichx_desc {
static struct {
spinlock_t lock;
struct platform_device *dev;
struct device *dev;
struct gpio_chip chip;
struct resource *gpio_base; /* GPIO IO base */
struct resource *pm_base; /* Power Mangagment IO base */
@ -112,8 +98,7 @@ static struct {
static int modparam_gpiobase = -1; /* dynamic */
module_param_named(gpiobase, modparam_gpiobase, int, 0444);
MODULE_PARM_DESC(gpiobase, "The GPIO number base. -1 means dynamic, "
"which is the default.");
MODULE_PARM_DESC(gpiobase, "The GPIO number base. -1 means dynamic, which is the default.");
static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
{
@ -121,7 +106,6 @@ static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
u32 data, tmp;
int reg_nr = nr / 32;
int bit = nr & 0x1f;
int ret = 0;
spin_lock_irqsave(&ichx_priv.lock, flags);
@ -142,12 +126,10 @@ static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
tmp = ICHX_READ(ichx_priv.desc->regs[reg][reg_nr],
ichx_priv.gpio_base);
if (verify && data != tmp)
ret = -EPERM;
spin_unlock_irqrestore(&ichx_priv.lock, flags);
return ret;
return (verify && data != tmp) ? -EPERM : 0;
}
static int ichx_read_bit(int reg, unsigned nr)
@ -186,10 +168,7 @@ static int ichx_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
* Try setting pin as an input and verify it worked since many pins
* are output-only.
*/
if (ichx_write_bit(GPIO_IO_SEL, nr, 1, 1))
return -EINVAL;
return 0;
return ichx_write_bit(GPIO_IO_SEL, nr, 1, 1);
}
static int ichx_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
@ -206,10 +185,7 @@ static int ichx_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
* Try setting pin as an output and verify it worked since many pins
* are input-only.
*/
if (ichx_write_bit(GPIO_IO_SEL, nr, 0, 1))
return -EINVAL;
return 0;
return ichx_write_bit(GPIO_IO_SEL, nr, 0, 1);
}
static int ichx_gpio_get(struct gpio_chip *chip, unsigned nr)
@ -284,7 +260,7 @@ static void ichx_gpiolib_setup(struct gpio_chip *chip)
{
chip->owner = THIS_MODULE;
chip->label = DRV_NAME;
chip->parent = &ichx_priv.dev->dev;
chip->parent = ichx_priv.dev;
/* Allow chip-specific overrides of request()/get() */
chip->request = ichx_priv.desc->request ?
@ -407,15 +383,14 @@ static int ichx_gpio_request_regions(struct device *dev,
static int ichx_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct lpc_ich_info *ich_info = dev_get_platdata(dev);
struct resource *res_base, *res_pm;
int err;
struct lpc_ich_info *ich_info = dev_get_platdata(&pdev->dev);
if (!ich_info)
return -ENODEV;
ichx_priv.dev = pdev;
switch (ich_info->gpio_version) {
case ICH_I3100_GPIO:
ichx_priv.desc = &i3100_desc;
@ -445,19 +420,21 @@ static int ichx_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
ichx_priv.dev = dev;
spin_lock_init(&ichx_priv.lock);
res_base = platform_get_resource(pdev, IORESOURCE_IO, ICH_RES_GPIO);
ichx_priv.use_gpio = ich_info->use_gpio;
err = ichx_gpio_request_regions(&pdev->dev, res_base, pdev->name,
ichx_priv.use_gpio);
err = ichx_gpio_request_regions(dev, res_base, pdev->name,
ich_info->use_gpio);
if (err)
return err;
ichx_priv.gpio_base = res_base;
ichx_priv.use_gpio = ich_info->use_gpio;
/*
* If necessary, determine the I/O address of ACPI/power management
* registers which are needed to read the the GPE0 register for GPI pins
* registers which are needed to read the GPE0 register for GPI pins
* 0 - 15 on some chipsets.
*/
if (!ichx_priv.desc->uses_gpe0)
@ -465,13 +442,13 @@ static int ichx_gpio_probe(struct platform_device *pdev)
res_pm = platform_get_resource(pdev, IORESOURCE_IO, ICH_RES_GPE0);
if (!res_pm) {
pr_warn("ACPI BAR is unavailable, GPI 0 - 15 unavailable\n");
dev_warn(dev, "ACPI BAR is unavailable, GPI 0 - 15 unavailable\n");
goto init;
}
if (!devm_request_region(&pdev->dev, res_pm->start,
resource_size(res_pm), pdev->name)) {
pr_warn("ACPI BAR is busy, GPI 0 - 15 unavailable\n");
if (!devm_request_region(dev, res_pm->start, resource_size(res_pm),
pdev->name)) {
dev_warn(dev, "ACPI BAR is busy, GPI 0 - 15 unavailable\n");
goto init;
}
@ -481,12 +458,12 @@ init:
ichx_gpiolib_setup(&ichx_priv.chip);
err = gpiochip_add_data(&ichx_priv.chip, NULL);
if (err) {
pr_err("Failed to register GPIOs\n");
dev_err(dev, "Failed to register GPIOs\n");
return err;
}
pr_info("GPIO from %d to %d on %s\n", ichx_priv.chip.base,
ichx_priv.chip.base + ichx_priv.chip.ngpio - 1, DRV_NAME);
dev_info(dev, "GPIO from %d to %d\n", ichx_priv.chip.base,
ichx_priv.chip.base + ichx_priv.chip.ngpio - 1);
return 0;
}

16
drivers/gpio/gpio-intel-mid.c
Просмотреть файл

@ -1,16 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Intel MID GPIO driver
*
* Copyright (c) 2008-2014,2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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.
*/
/* Supports:
@ -20,12 +12,11 @@
*/
#include <linux/delay.h>
#include <linux/gpio/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/gpio/driver.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@ -273,9 +264,8 @@ static const struct pci_device_id intel_gpio_ids[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7),
.driver_data = (kernel_ulong_t)&gpio_cloverview_core,
},
{ 0 }
{ }
};
MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
static void intel_mid_irq_handler(struct irq_desc *desc)
{

44
drivers/gpio/gpio-lynxpoint.c
Просмотреть файл

@ -1,36 +1,22 @@
// SPDX-License-Identifier: GPL-2.0
/*
* GPIO controller driver for Intel Lynxpoint PCH chipset>
* Copyright (c) 2012, Intel Corporation.
*
* Author: Mathias Nyman <mathias.nyman@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <linux/acpi.h>
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/gpio/driver.h>
#include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/types.h>
/* LynxPoint chipset has support for 94 gpio pins */
@ -240,21 +226,23 @@ static void lp_gpio_irq_handler(struct irq_desc *desc)
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
struct lp_gpio *lg = gpiochip_get_data(gc);
struct irq_chip *chip = irq_data_get_irq_chip(data);
u32 base, pin, mask;
unsigned long reg, ena, pending;
u32 base, pin;
/* check from GPIO controller which pin triggered the interrupt */
for (base = 0; base < lg->chip.ngpio; base += 32) {
reg = lp_gpio_reg(&lg->chip, base, LP_INT_STAT);
ena = lp_gpio_reg(&lg->chip, base, LP_INT_ENABLE);
while ((pending = (inl(reg) & inl(ena)))) {
/* Only interrupts that are enabled */
pending = inl(reg) & inl(ena);
for_each_set_bit(pin, &pending, 32) {
unsigned irq;
pin = __ffs(pending);
mask = BIT(pin);
/* Clear before handling so we don't lose an edge */
outl(mask, reg);
outl(BIT(pin), reg);
irq = irq_find_mapping(lg->chip.irq.domain, base + pin);
generic_handle_irq(irq);
}
@ -466,5 +454,5 @@ module_exit(lp_gpio_exit);
MODULE_AUTHOR("Mathias Nyman (Intel)");
MODULE_DESCRIPTION("GPIO interface for Intel Lynxpoint");
MODULE_LICENSE("GPL");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:lp_gpio");

6
drivers/gpio/gpio-merrifield.c
Просмотреть файл

@ -1,18 +1,14 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Intel Merrifield SoC GPIO driver
*
* Copyright (c) 2016 Intel Corporation.
* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/acpi.h>
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>

165
drivers/gpio/gpio-pch.c
Просмотреть файл

@ -1,25 +1,13 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/slab.h>
#define PCH_EDGE_FALLING 0
@ -171,11 +159,10 @@ static int pch_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
return 0;
}
#ifdef CONFIG_PM
/*
* Save register configuration and disable interrupts.
*/
static void pch_gpio_save_reg_conf(struct pch_gpio *chip)
static void __maybe_unused pch_gpio_save_reg_conf(struct pch_gpio *chip)
{
chip->pch_gpio_reg.ien_reg = ioread32(&chip->reg->ien);
chip->pch_gpio_reg.imask_reg = ioread32(&chip->reg->imask);
@ -185,14 +172,13 @@ static void pch_gpio_save_reg_conf(struct pch_gpio *chip)
if (chip->ioh == INTEL_EG20T_PCH)
chip->pch_gpio_reg.im1_reg = ioread32(&chip->reg->im1);
if (chip->ioh == OKISEMI_ML7223n_IOH)
chip->pch_gpio_reg.gpio_use_sel_reg =\
ioread32(&chip->reg->gpio_use_sel);
chip->pch_gpio_reg.gpio_use_sel_reg = ioread32(&chip->reg->gpio_use_sel);
}
/*
* This function restores the register configuration of the GPIO device.
*/
static void pch_gpio_restore_reg_conf(struct pch_gpio *chip)
static void __maybe_unused pch_gpio_restore_reg_conf(struct pch_gpio *chip)
{
iowrite32(chip->pch_gpio_reg.ien_reg, &chip->reg->ien);
iowrite32(chip->pch_gpio_reg.imask_reg, &chip->reg->imask);
@ -204,10 +190,8 @@ static void pch_gpio_restore_reg_conf(struct pch_gpio *chip)
if (chip->ioh == INTEL_EG20T_PCH)
iowrite32(chip->pch_gpio_reg.im1_reg, &chip->reg->im1);
if (chip->ioh == OKISEMI_ML7223n_IOH)
iowrite32(chip->pch_gpio_reg.gpio_use_sel_reg,
&chip->reg->gpio_use_sel);
iowrite32(chip->pch_gpio_reg.gpio_use_sel_reg, &chip->reg->gpio_use_sel);
}
#endif
static int pch_gpio_to_irq(struct gpio_chip *gpio, unsigned offset)
{
@ -226,7 +210,6 @@ static void pch_gpio_setup(struct pch_gpio *chip)
gpio->get = pch_gpio_get;
gpio->direction_output = pch_gpio_direction_output;
gpio->set = pch_gpio_set;
gpio->dbg_show = NULL;
gpio->base = -1;
gpio->ngpio = gpio_pins[chip->ioh];
gpio->can_sleep = false;
@ -250,8 +233,7 @@ static int pch_irq_type(struct irq_data *d, unsigned int type)
im_reg = &chip->reg->im1;
im_pos = ch - 8;
}
dev_dbg(chip->dev, "%s:irq=%d type=%d ch=%d pos=%d\n",
__func__, irq, type, ch, im_pos);
dev_dbg(chip->dev, "irq=%d type=%d ch=%d pos=%d\n", irq, type, ch, im_pos);
spin_lock_irqsave(&chip->spinlock, flags);
@ -317,16 +299,13 @@ static void pch_irq_ack(struct irq_data *d)
static irqreturn_t pch_gpio_handler(int irq, void *dev_id)
{
struct pch_gpio *chip = dev_id;
u32 reg_val = ioread32(&chip->reg->istatus);
unsigned long reg_val = ioread32(&chip->reg->istatus);
int i, ret = IRQ_NONE;
for (i = 0; i < gpio_pins[chip->ioh]; i++) {
if (reg_val & BIT(i)) {
dev_dbg(chip->dev, "%s:[%d]:irq=%d status=0x%x\n",
__func__, i, irq, reg_val);
generic_handle_irq(chip->irq_base + i);
ret = IRQ_HANDLED;
}
for_each_set_bit(i, &reg_val, gpio_pins[chip->ioh]) {
dev_dbg(chip->dev, "[%d]:irq=%d status=0x%lx\n", i, irq, reg_val);
generic_handle_irq(chip->irq_base + i);
ret = IRQ_HANDLED;
}
return ret;
}
@ -367,29 +346,24 @@ static int pch_gpio_probe(struct pci_dev *pdev,
int irq_base;
u32 msk;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
chip->dev = &pdev->dev;
ret = pci_enable_device(pdev);
ret = pcim_enable_device(pdev);
if (ret) {
dev_err(&pdev->dev, "%s : pci_enable_device FAILED", __func__);
goto err_pci_enable;
dev_err(&pdev->dev, "pci_enable_device FAILED");
return ret;
}
ret = pci_request_regions(pdev, KBUILD_MODNAME);
ret = pcim_iomap_regions(pdev, 1 << 1, KBUILD_MODNAME);
if (ret) {
dev_err(&pdev->dev, "pci_request_regions FAILED-%d", ret);
goto err_request_regions;
return ret;
}
chip->base = pci_iomap(pdev, 1, 0);
if (!chip->base) {
dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__);
ret = -ENOMEM;
goto err_iomap;
}
chip->base = pcim_iomap_table(pdev)[1];
if (pdev->device == 0x8803)
chip->ioh = INTEL_EG20T_PCH;
@ -402,13 +376,11 @@ static int pch_gpio_probe(struct pci_dev *pdev,
pci_set_drvdata(pdev, chip);
spin_lock_init(&chip->spinlock);
pch_gpio_setup(chip);
#ifdef CONFIG_OF_GPIO
chip->gpio.of_node = pdev->dev.of_node;
#endif
ret = gpiochip_add_data(&chip->gpio, chip);
ret = devm_gpiochip_add_data(&pdev->dev, &chip->gpio, chip);
if (ret) {
dev_err(&pdev->dev, "PCH gpio: Failed to register GPIO\n");
goto err_gpiochip_add;
return ret;
}
irq_base = devm_irq_alloc_descs(&pdev->dev, -1, 0,
@ -416,7 +388,7 @@ static int pch_gpio_probe(struct pci_dev *pdev,
if (irq_base < 0) {
dev_warn(&pdev->dev, "PCH gpio: Failed to get IRQ base num\n");
chip->irq_base = -1;
goto end;
return 0;
}
chip->irq_base = irq_base;
@ -427,53 +399,17 @@ static int pch_gpio_probe(struct pci_dev *pdev,
ret = devm_request_irq(&pdev->dev, pdev->irq, pch_gpio_handler,
IRQF_SHARED, KBUILD_MODNAME, chip);
if (ret != 0) {
dev_err(&pdev->dev,
"%s request_irq failed\n", __func__);
goto err_request_irq;
if (ret) {
dev_err(&pdev->dev, "request_irq failed\n");
return ret;
}
ret = pch_gpio_alloc_generic_chip(chip, irq_base,
gpio_pins[chip->ioh]);
if (ret)
goto err_request_irq;
end:
return 0;
err_request_irq:
gpiochip_remove(&chip->gpio);
err_gpiochip_add:
pci_iounmap(pdev, chip->base);
err_iomap:
pci_release_regions(pdev);
err_request_regions:
pci_disable_device(pdev);
err_pci_enable:
kfree(chip);
dev_err(&pdev->dev, "%s Failed returns %d\n", __func__, ret);
return ret;
return pch_gpio_alloc_generic_chip(chip, irq_base, gpio_pins[chip->ioh]);
}
static void pch_gpio_remove(struct pci_dev *pdev)
static int __maybe_unused pch_gpio_suspend(struct device *dev)
{
struct pch_gpio *chip = pci_get_drvdata(pdev);
gpiochip_remove(&chip->gpio);
pci_iounmap(pdev, chip->base);
pci_release_regions(pdev);
pci_disable_device(pdev);
kfree(chip);
}
#ifdef CONFIG_PM
static int pch_gpio_suspend(struct pci_dev *pdev, pm_message_t state)
{
s32 ret;
struct pci_dev *pdev = to_pci_dev(dev);
struct pch_gpio *chip = pci_get_drvdata(pdev);
unsigned long flags;
@ -481,36 +417,15 @@ static int pch_gpio_suspend(struct pci_dev *pdev, pm_message_t state)
pch_gpio_save_reg_conf(chip);
spin_unlock_irqrestore(&chip->spinlock, flags);
ret = pci_save_state(pdev);
if (ret) {
dev_err(&pdev->dev, "pci_save_state Failed-%d\n", ret);
return ret;
}
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D0);
ret = pci_enable_wake(pdev, PCI_D0, 1);
if (ret)
dev_err(&pdev->dev, "pci_enable_wake Failed -%d\n", ret);
return 0;
}
static int pch_gpio_resume(struct pci_dev *pdev)
static int __maybe_unused pch_gpio_resume(struct device *dev)
{
s32 ret;
struct pci_dev *pdev = to_pci_dev(dev);
struct pch_gpio *chip = pci_get_drvdata(pdev);
unsigned long flags;
ret = pci_enable_wake(pdev, PCI_D0, 0);
pci_set_power_state(pdev, PCI_D0);
ret = pci_enable_device(pdev);
if (ret) {
dev_err(&pdev->dev, "pci_enable_device Failed-%d ", ret);
return ret;
}
pci_restore_state(pdev);
spin_lock_irqsave(&chip->spinlock, flags);
iowrite32(0x01, &chip->reg->reset);
iowrite32(0x00, &chip->reg->reset);
@ -519,10 +434,8 @@ static int pch_gpio_resume(struct pci_dev *pdev)
return 0;
}
#else
#define pch_gpio_suspend NULL
#define pch_gpio_resume NULL
#endif
static SIMPLE_DEV_PM_OPS(pch_gpio_pm_ops, pch_gpio_suspend, pch_gpio_resume);
#define PCI_VENDOR_ID_ROHM 0x10DB
static const struct pci_device_id pch_gpio_pcidev_id[] = {
@ -538,12 +451,12 @@ static struct pci_driver pch_gpio_driver = {
.name = "pch_gpio",
.id_table = pch_gpio_pcidev_id,
.probe = pch_gpio_probe,
.remove = pch_gpio_remove,
.suspend = pch_gpio_suspend,
.resume = pch_gpio_resume
.driver = {
.pm = &pch_gpio_pm_ops,
},
};
module_pci_driver(pch_gpio_driver);
MODULE_DESCRIPTION("PCH GPIO PCI Driver");
MODULE_LICENSE("GPL");
MODULE_LICENSE("GPL v2");

27
drivers/gpio/gpio-sch.c
Просмотреть файл

@ -1,32 +1,19 @@
// SPDX-License-Identifier: GPL-2.0
/*
* GPIO interface for Intel Poulsbo SCH
*
* Copyright (c) 2010 CompuLab Ltd
* Author: Denis Turischev <denis@compulab.co.il>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/errno.h>
#include <linux/gpio/driver.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/errno.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
#include <linux/pci_ids.h>
#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#define GEN 0x00
#define GIO 0x04
@ -235,5 +222,5 @@ module_platform_driver(sch_gpio_driver);
MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>");
MODULE_DESCRIPTION("GPIO interface for Intel Poulsbo SCH");
MODULE_LICENSE("GPL");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sch_gpio");

73
drivers/gpio/gpio-sodaville.c
Просмотреть файл

@ -1,26 +1,22 @@
// SPDX-License-Identifier: GPL-2.0
/*
* GPIO interface for Intel Sodaville SoCs.
*
* Copyright (c) 2010, 2011 Intel Corporation
*
* Author: Hans J. Koch <hjk@linutronix.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 2 as published
* by the Free Software Foundation.
*
*/
#include <linux/errno.h>
#include <linux/gpio/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/of_irq.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/of_irq.h>
#include <linux/gpio/driver.h>
#define DRV_NAME "sdv_gpio"
#define SDV_NUM_PUB_GPIOS 12
@ -80,18 +76,15 @@ static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type)
static irqreturn_t sdv_gpio_pub_irq_handler(int irq, void *data)
{
struct sdv_gpio_chip_data *sd = data;
u32 irq_stat = readl(sd->gpio_pub_base + GPSTR);
unsigned long irq_stat = readl(sd->gpio_pub_base + GPSTR);
int irq_bit;
irq_stat &= readl(sd->gpio_pub_base + GPIO_INT);
if (!irq_stat)
return IRQ_NONE;
while (irq_stat) {
u32 irq_bit = __fls(irq_stat);
irq_stat &= ~BIT(irq_bit);
for_each_set_bit(irq_bit, &irq_stat, 32)
generic_handle_irq(irq_find_mapping(sd->id, irq_bit));
}
return IRQ_HANDLED;
}
@ -155,8 +148,10 @@ static int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd,
* we unmask & ACK the IRQ before the source of the interrupt is gone
* then the interrupt is active again.
*/
sd->gc = irq_alloc_generic_chip("sdv-gpio", 1, sd->irq_base,
sd->gpio_pub_base, handle_fasteoi_irq);
sd->gc = devm_irq_alloc_generic_chip(&pdev->dev, "sdv-gpio", 1,
sd->irq_base,
sd->gpio_pub_base,
handle_fasteoi_irq);
if (!sd->gc)
return -ENOMEM;
@ -186,70 +181,52 @@ static int sdv_gpio_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
struct sdv_gpio_chip_data *sd;
unsigned long addr;
const void *prop;
int len;
int ret;
u32 mux_val;
sd = kzalloc(sizeof(struct sdv_gpio_chip_data), GFP_KERNEL);
sd = devm_kzalloc(&pdev->dev, sizeof(*sd), GFP_KERNEL);
if (!sd)
return -ENOMEM;
ret = pci_enable_device(pdev);
ret = pcim_enable_device(pdev);
if (ret) {
dev_err(&pdev->dev, "can't enable device.\n");
goto done;
return ret;
}
ret = pci_request_region(pdev, GPIO_BAR, DRV_NAME);
ret = pcim_iomap_regions(pdev, 1 << GPIO_BAR, DRV_NAME);
if (ret) {
dev_err(&pdev->dev, "can't alloc PCI BAR #%d\n", GPIO_BAR);
goto disable_pci;
return ret;
}
addr = pci_resource_start(pdev, GPIO_BAR);
if (!addr) {
ret = -ENODEV;
goto release_reg;
}
sd->gpio_pub_base = ioremap(addr, pci_resource_len(pdev, GPIO_BAR));
sd->gpio_pub_base = pcim_iomap_table(pdev)[GPIO_BAR];
prop = of_get_property(pdev->dev.of_node, "intel,muxctl", &len);
if (prop && len == 4) {
mux_val = of_read_number(prop, 1);
ret = of_property_read_u32(pdev->dev.of_node, "intel,muxctl", &mux_val);
if (!ret)
writel(mux_val, sd->gpio_pub_base + GPMUXCTL);
}
ret = bgpio_init(&sd->chip, &pdev->dev, 4,
sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR,
NULL, sd->gpio_pub_base + GPOER, NULL, 0);
if (ret)
goto unmap;
return ret;
sd->chip.ngpio = SDV_NUM_PUB_GPIOS;
ret = gpiochip_add_data(&sd->chip, sd);
ret = devm_gpiochip_add_data(&pdev->dev, &sd->chip, sd);
if (ret < 0) {
dev_err(&pdev->dev, "gpiochip_add() failed.\n");
goto unmap;
return ret;
}
ret = sdv_register_irqsupport(sd, pdev);
if (ret)
goto unmap;
return ret;
pci_set_drvdata(pdev, sd);
dev_info(&pdev->dev, "Sodaville GPIO driver registered.\n");
return 0;
unmap:
iounmap(sd->gpio_pub_base);
release_reg:
pci_release_region(pdev, GPIO_BAR);
disable_pci:
pci_disable_device(pdev);
done:
kfree(sd);
return ret;
}
static const struct pci_device_id sdv_gpio_pci_ids[] = {