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. -c3bc3ff9e8MAINTAINERS: 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_* -----BEGIN PGP SIGNATURE----- iQIyBAABCgAdFiEEqaflIX74DDDzMJJtb7wzTHR8rCgFAlwOvD0ACgkQb7wzTHR8 rCjRPA/4pVGrJEdp6+C8/0l0BvQPOR41AAKPGvJ8SBhUklOhbBAnME5E/auK/iKs TR9NGAWQnqSh8rTIY3RJueiiEs1VZkwRqwi9gFyllhn+/yWCpdU513NU8id1Oh60 5P43jD9QzMLoi5yT832GlojNmqeUkzBP+sS4n/AVAWX5Y0zlOXpjQ/uyBXMoYwAw jGGo1MC8qCzSPdanumc3WZ7Kp5xUtDWgP3NrxgkO3DPFQjeQdXMsm6jEJtonxoYh B5Fd7GoJGMW998M3UZFaEXIUn9rYOkxyHE2dPp8xV4YCxLYm5zaPuTGJVRU98kN7 w0BowGNZ2t1oDbdVX88ubzoJzS4+j00e6vqet2118fpYK30hlYzjFxaldF6k8ZDp z+DSRVo5VdLnsd9STLasi9255t+o4gQJUVLU3G3MbCDeLQYxe/CRNXP8WfuHkIMP /LOIOUKk5nW0kxHWK7i9VJY/YX4vQJpEfnJKVYAbqKqnJ2loOIlfIrQxaPMIj2Tj 5+FXtOB14A/INwSRxrzjTbjODDyDGzHw2qgGGhAP2MRv6AQtaLeLt/pEhbbykgDm /Grj+DY5Hsu57fhlBHQMxBCrex1gFMyRSObFmvA0+dRXNHHPDHRwEyNWJpzPDmaa 2j2TDxgNJuXOr9Zva1ReeGYjdSo7S4YHUh11v6FpMuYvFQojHA== =5W0M -----END PGP SIGNATURE----- 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. -c3bc3ff9e8MAINTAINERS: 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
commit
493872e074
33
MAINTAINERS
33
MAINTAINERS
|
|
@ -7428,6 +7428,20 @@ S: Maintained
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|||
F: Documentation/fb/intelfb.txt
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F: drivers/video/fbdev/intelfb/
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INTEL GPIO DRIVERS
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M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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L: linux-gpio@vger.kernel.org
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S: Maintained
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git
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F: drivers/gpio/gpio-ich.c
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F: drivers/gpio/gpio-intel-mid.c
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F: drivers/gpio/gpio-lynxpoint.c
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F: drivers/gpio/gpio-merrifield.c
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F: drivers/gpio/gpio-ml-ioh.c
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F: drivers/gpio/gpio-pch.c
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F: drivers/gpio/gpio-sch.c
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F: drivers/gpio/gpio-sodaville.c
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INTEL GVT-g DRIVERS (Intel GPU Virtualization)
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M: Zhenyu Wang <zhenyuw@linux.intel.com>
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M: Zhi Wang <zhi.a.wang@intel.com>
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@ -7438,12 +7452,6 @@ T: git https://github.com/intel/gvt-linux.git
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S: Supported
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F: drivers/gpu/drm/i915/gvt/
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INTEL PMIC GPIO DRIVER
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R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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S: Maintained
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F: drivers/gpio/gpio-*cove.c
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F: drivers/gpio/gpio-msic.c
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INTEL HID EVENT DRIVER
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M: Alex Hung <alex.hung@canonical.com>
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L: platform-driver-x86@vger.kernel.org
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@ -7531,12 +7539,6 @@ W: https://01.org/linux-acpi
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S: Supported
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F: drivers/platform/x86/intel_menlow.c
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INTEL MERRIFIELD GPIO DRIVER
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M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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L: linux-gpio@vger.kernel.org
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S: Maintained
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F: drivers/gpio/gpio-merrifield.c
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INTEL MIC DRIVERS (mic)
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M: Sudeep Dutt <sudeep.dutt@intel.com>
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M: Ashutosh Dixit <ashutosh.dixit@intel.com>
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@ -7569,6 +7571,13 @@ F: drivers/platform/x86/intel_punit_ipc.c
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F: arch/x86/include/asm/intel_pmc_ipc.h
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F: arch/x86/include/asm/intel_punit_ipc.h
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INTEL PMIC GPIO DRIVERS
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M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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S: Maintained
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git
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F: drivers/gpio/gpio-*cove.c
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F: drivers/gpio/gpio-msic.c
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INTEL MULTIFUNCTION PMIC DEVICE DRIVERS
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R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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S: Maintained
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|
|
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|
@ -1,32 +1,18 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Intel ICH6-10, Series 5 and 6, Atom C2000 (Avoton/Rangeley) GPIO driver
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*
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* Copyright (C) 2010 Extreme Engineering Solutions.
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*
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* 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.
|
||||
*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/bitops.h>
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#include <linux/gpio/driver.h>
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#include <linux/ioport.h>
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#include <linux/mfd/lpc_ich.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/gpio/driver.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/lpc_ich.h>
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#include <linux/bitops.h>
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#define DRV_NAME "gpio_ich"
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|
|
@ -100,7 +86,7 @@ struct ichx_desc {
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static struct {
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spinlock_t lock;
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struct platform_device *dev;
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struct device *dev;
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struct gpio_chip chip;
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struct resource *gpio_base; /* GPIO IO base */
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struct resource *pm_base; /* Power Mangagment IO base */
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@ -112,8 +98,7 @@ static struct {
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|||
|
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static int modparam_gpiobase = -1; /* dynamic */
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module_param_named(gpiobase, modparam_gpiobase, int, 0444);
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MODULE_PARM_DESC(gpiobase, "The GPIO number base. -1 means dynamic, "
|
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"which is the default.");
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MODULE_PARM_DESC(gpiobase, "The GPIO number base. -1 means dynamic, which is the default.");
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static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
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{
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|
|
@ -121,7 +106,6 @@ static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
|
|||
u32 data, tmp;
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int reg_nr = nr / 32;
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int bit = nr & 0x1f;
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int ret = 0;
|
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spin_lock_irqsave(&ichx_priv.lock, flags);
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|
|
@ -142,12 +126,10 @@ static int ichx_write_bit(int reg, unsigned nr, int val, int verify)
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|
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tmp = ICHX_READ(ichx_priv.desc->regs[reg][reg_nr],
|
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ichx_priv.gpio_base);
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if (verify && data != tmp)
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ret = -EPERM;
|
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|
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spin_unlock_irqrestore(&ichx_priv.lock, flags);
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return ret;
|
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return (verify && data != tmp) ? -EPERM : 0;
|
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}
|
||||
|
||||
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.
|
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*/
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if (ichx_write_bit(GPIO_IO_SEL, nr, 1, 1))
|
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return -EINVAL;
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||||
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.
|
||||
*/
|
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if (ichx_write_bit(GPIO_IO_SEL, nr, 0, 1))
|
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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;
|
||||
|
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/* Allow chip-specific overrides of request()/get() */
|
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chip->request = ichx_priv.desc->request ?
|
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|
|
@ -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 @@ static int ichx_gpio_probe(struct platform_device *pdev)
|
|||
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;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -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");
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
|
|
|||
|
|
@ -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, ®_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");
|
||||
|
|
|
|||
|
|
@ -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");
|
||||
|
|
|
|||
|
|
@ -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[] = {
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user