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Commit 86b6d4f8 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
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Merge tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-2' of git://git.infradead.org/linux-platform-drivers-x86 

Pull the first part of Intel MID outdated platforms removal from Andy
Shevchenko:

"The following is an automated git shortlog grouped by driver:

 drm/gma500:
  -  Get rid of duplicate NULL checks
  -  Convert to use new SCU IPC API

 gpio:
  -  msic: Remove driver for deprecated platform
  -  intel-mid: Remove driver for deprecated platform

 intel_mid_powerbtn:
  -  Remove driver for deprecated platform

 intel_mid_thermal:
  -  Remove driver for deprecated platform

 intel_scu_wdt:
  -  Drop mistakenly added const
  -  Get rid of custom x86 model comparison
  -  Drop SCU notification
  -  Move driver from arch/x86

 rtc:
  -  mrst: Remove driver for deprecated platform

 watchdog:
  -  intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
  -  intel_scu_watchdog: Remove driver for deprecated platform"

* tag 'ib-drm-gpio-pdx86-rtc-wdt-v5.12-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: intel_scu_wdt: Drop mistakenly added const
  platform/x86: intel_scu_wdt: Get rid of custom x86 model comparison
  platform/x86: intel_scu_wdt: Drop SCU notification
  platform/x86: intel_scu_wdt: Move driver from arch/x86
  watchdog: intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
  watchdog: intel_scu_watchdog: Remove driver for deprecated platform
  rtc: mrst: Remove driver for deprecated platform
  platform/x86: intel_mid_powerbtn: Remove driver for deprecated platform
  platform/x86: intel_mid_thermal: Remove driver for deprecated platform
  gpio: msic: Remove driver for deprecated platform
  gpio: intel-mid: Remove driver for deprecated platform
  drm/gma500: Get rid of duplicate NULL checks
  drm/gma500: Convert to use new SCU IPC API
parents 92bf2261 ca338fed
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MAINTAINERS
View file @ 86b6d4f8
......@@ -8936,7 +8936,6 @@ 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-merrifield.c
F: drivers/gpio/gpio-ml-ioh.c
F: drivers/gpio/gpio-pch.c
......@@ -9095,7 +9094,6 @@ M: Andy Shevchenko <andy@kernel.org>
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 PMIC MULTIFUNCTION DEVICE DRIVERS
M: Andy Shevchenko <andy@kernel.org>
......
arch/x86/platform/intel-mid/device_libs/Makefile
View file @ 86b6d4f8
......@@ -30,4 +30,3 @@ obj-$(subst m,y,$(CONFIG_GPIO_PCA953X)) += platform_tca6416.o
obj-$(subst m,y,$(CONFIG_KEYBOARD_GPIO)) += platform_gpio_keys.o
obj-$(subst m,y,$(CONFIG_INTEL_MID_POWER_BUTTON)) += platform_mrfld_power_btn.o
obj-$(subst m,y,$(CONFIG_RTC_DRV_CMOS)) += platform_mrfld_rtc.o
obj-$(subst m,y,$(CONFIG_INTEL_MID_WATCHDOG)) += platform_mrfld_wdt.o
drivers/gpio/Kconfig
View file @ 86b6d4f8
......@@ -1252,13 +1252,6 @@ config GPIO_MAX77650
GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
These chips have a single pin that can be configured as GPIO.
config GPIO_MSIC
bool "Intel MSIC mixed signal gpio support"
depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
help
Enable support for GPIO on intel MSIC controllers found in
intel MID devices
config GPIO_PALMAS
bool "TI PALMAS series PMICs GPIO"
depends on MFD_PALMAS
......@@ -1454,13 +1447,6 @@ config GPIO_BT8XX
If unsure, say N.
config GPIO_INTEL_MID
bool "Intel MID GPIO support"
depends on X86_INTEL_MID
select GPIOLIB_IRQCHIP
help
Say Y here to support Intel MID GPIO.
config GPIO_MERRIFIELD
tristate "Intel Merrifield GPIO support"
depends on X86_INTEL_MID
......
drivers/gpio/Makefile
View file @ 86b6d4f8
......@@ -67,7 +67,6 @@ obj-$(CONFIG_GPIO_HISI) += gpio-hisi.o
obj-$(CONFIG_GPIO_HLWD) += gpio-hlwd.o
obj-$(CONFIG_HTC_EGPIO) += gpio-htc-egpio.o
obj-$(CONFIG_GPIO_ICH) += gpio-ich.o
obj-$(CONFIG_GPIO_INTEL_MID) += gpio-intel-mid.o
obj-$(CONFIG_GPIO_IOP) += gpio-iop.o
obj-$(CONFIG_GPIO_IT87) += gpio-it87.o
obj-$(CONFIG_GPIO_IXP4XX) += gpio-ixp4xx.o
......
drivers/gpio/TODO
View file @ 86b6d4f8
......@@ -101,7 +101,7 @@ for a few GPIOs. Those should stay where they are.
At the same time it makes sense to get rid of code duplication in existing or
new coming drivers. For example, gpio-ml-ioh should be incorporated into
gpio-pch. In similar way gpio-intel-mid into gpio-pxa.
gpio-pch.
Generic MMIO GPIO
......
drivers/gpio/gpio-intel-mid.c deleted 100644 → 0
View file @ 92bf2261
This diff is collapsed.
drivers/gpio/gpio-msic.c deleted 100644 → 0
View file @ 92bf2261
// SPDX-License-Identifier: GPL-2.0
/*
* Intel Medfield MSIC GPIO driver>
* Copyright (c) 2011, Intel Corporation.
*
* Author: Mathias Nyman <mathias.nyman@linux.intel.com>
* Based on intel_pmic_gpio.c
*/
#include <linux/gpio/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/intel_msic.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
/* the offset for the mapping of global gpio pin to irq */
#define MSIC_GPIO_IRQ_OFFSET 0x100
#define MSIC_GPIO_DIR_IN 0
#define MSIC_GPIO_DIR_OUT BIT(5)
#define MSIC_GPIO_TRIG_FALL BIT(1)
#define MSIC_GPIO_TRIG_RISE BIT(2)
/* masks for msic gpio output GPIOxxxxCTLO registers */
#define MSIC_GPIO_DIR_MASK BIT(5)
#define MSIC_GPIO_DRV_MASK BIT(4)
#define MSIC_GPIO_REN_MASK BIT(3)
#define MSIC_GPIO_RVAL_MASK (BIT(2) | BIT(1))
#define MSIC_GPIO_DOUT_MASK BIT(0)
/* masks for msic gpio input GPIOxxxxCTLI registers */
#define MSIC_GPIO_GLBYP_MASK BIT(5)
#define MSIC_GPIO_DBNC_MASK (BIT(4) | BIT(3))
#define MSIC_GPIO_INTCNT_MASK (BIT(2) | BIT(1))
#define MSIC_GPIO_DIN_MASK BIT(0)
#define MSIC_NUM_GPIO 24
struct msic_gpio {
struct platform_device *pdev;
struct mutex buslock;
struct gpio_chip chip;
int irq;
unsigned irq_base;
unsigned long trig_change_mask;
unsigned trig_type;
};
/*
* MSIC has 24 gpios, 16 low voltage (1.2-1.8v) and 8 high voltage (3v).
* Both the high and low voltage gpios are divided in two banks.
* GPIOs are numbered with GPIO0LV0 as gpio_base in the following order:
* GPIO0LV0..GPIO0LV7: low voltage, bank 0, gpio_base
* GPIO1LV0..GPIO1LV7: low voltage, bank 1, gpio_base + 8
* GPIO0HV0..GPIO0HV3: high voltage, bank 0, gpio_base + 16
* GPIO1HV0..GPIO1HV3: high voltage, bank 1, gpio_base + 20
*/
static int msic_gpio_to_ireg(unsigned offset)
{
if (offset >= MSIC_NUM_GPIO)
return -EINVAL;
if (offset < 8)
return INTEL_MSIC_GPIO0LV0CTLI - offset;
if (offset < 16)
return INTEL_MSIC_GPIO1LV0CTLI - offset + 8;
if (offset < 20)
return INTEL_MSIC_GPIO0HV0CTLI - offset + 16;
return INTEL_MSIC_GPIO1HV0CTLI - offset + 20;
}
static int msic_gpio_to_oreg(unsigned offset)
{
if (offset >= MSIC_NUM_GPIO)
return -EINVAL;
if (offset < 8)
return INTEL_MSIC_GPIO0LV0CTLO - offset;
if (offset < 16)
return INTEL_MSIC_GPIO1LV0CTLO - offset + 8;
if (offset < 20)
return INTEL_MSIC_GPIO0HV0CTLO - offset + 16;
return INTEL_MSIC_GPIO1HV0CTLO - offset + 20;
}
static int msic_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
int reg;
reg = msic_gpio_to_oreg(offset);
if (reg < 0)
return reg;
return intel_msic_reg_update(reg, MSIC_GPIO_DIR_IN, MSIC_GPIO_DIR_MASK);
}
static int msic_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
int reg;
unsigned mask;
value = (!!value) | MSIC_GPIO_DIR_OUT;
mask = MSIC_GPIO_DIR_MASK | MSIC_GPIO_DOUT_MASK;
reg = msic_gpio_to_oreg(offset);
if (reg < 0)
return reg;
return intel_msic_reg_update(reg, value, mask);
}
static int msic_gpio_get(struct gpio_chip *chip, unsigned offset)
{
u8 r;
int ret;
int reg;
reg = msic_gpio_to_ireg(offset);
if (reg < 0)
return reg;
ret = intel_msic_reg_read(reg, &r);
if (ret < 0)
return ret;
return !!(r & MSIC_GPIO_DIN_MASK);
}
static void msic_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
int reg;
reg = msic_gpio_to_oreg(offset);
if (reg < 0)
return;
intel_msic_reg_update(reg, !!value , MSIC_GPIO_DOUT_MASK);
}
/*
* This is called from genirq with mg->buslock locked and
* irq_desc->lock held. We can not access the scu bus here, so we
* store the change and update in the bus_sync_unlock() function below
*/
static int msic_irq_type(struct irq_data *data, unsigned type)
{
struct msic_gpio *mg = irq_data_get_irq_chip_data(data);
u32 gpio = data->irq - mg->irq_base;
if (gpio >= mg->chip.ngpio)
return -EINVAL;
/* mark for which gpio the trigger changed, protected by buslock */
mg->trig_change_mask |= (1 << gpio);
mg->trig_type = type;
return 0;
}
static int msic_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct msic_gpio *mg = gpiochip_get_data(chip);
return mg->irq_base + offset;
}
static void msic_bus_lock(struct irq_data *data)
{
struct msic_gpio *mg = irq_data_get_irq_chip_data(data);
mutex_lock(&mg->buslock);
}
static void msic_bus_sync_unlock(struct irq_data *data)
{
struct msic_gpio *mg = irq_data_get_irq_chip_data(data);
int offset;
int reg;
u8 trig = 0;
/* We can only get one change at a time as the buslock covers the
entire transaction. The irq_desc->lock is dropped before we are
called but that is fine */
if (mg->trig_change_mask) {
offset = __ffs(mg->trig_change_mask);
reg = msic_gpio_to_ireg(offset);
if (reg < 0)
goto out;
if (mg->trig_type & IRQ_TYPE_EDGE_RISING)
trig |= MSIC_GPIO_TRIG_RISE;
if (mg->trig_type & IRQ_TYPE_EDGE_FALLING)
trig |= MSIC_GPIO_TRIG_FALL;
intel_msic_reg_update(reg, trig, MSIC_GPIO_INTCNT_MASK);
mg->trig_change_mask = 0;
}
out:
mutex_unlock(&mg->buslock);
}
/* Firmware does all the masking and unmasking for us, no masking here. */
static void msic_irq_unmask(struct irq_data *data) { }
static void msic_irq_mask(struct irq_data *data) { }
static struct irq_chip msic_irqchip = {
.name = "MSIC-GPIO",
.irq_mask = msic_irq_mask,
.irq_unmask = msic_irq_unmask,
.irq_set_type = msic_irq_type,
.irq_bus_lock = msic_bus_lock,
.irq_bus_sync_unlock = msic_bus_sync_unlock,
};
static void msic_gpio_irq_handler(struct irq_desc *desc)
{
struct irq_data *data = irq_desc_get_irq_data(desc);
struct msic_gpio *mg = irq_data_get_irq_handler_data(data);
struct irq_chip *chip = irq_data_get_irq_chip(data);
struct intel_msic *msic = pdev_to_intel_msic(mg->pdev);
unsigned long pending;
int i;
int bitnr;
u8 pin;
for (i = 0; i < (mg->chip.ngpio / BITS_PER_BYTE); i++) {
intel_msic_irq_read(msic, INTEL_MSIC_GPIO0LVIRQ + i, &pin);
pending = pin;
for_each_set_bit(bitnr, &pending, BITS_PER_BYTE)
generic_handle_irq(mg->irq_base + i * BITS_PER_BYTE + bitnr);
}
chip->irq_eoi(data);
}
static int platform_msic_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct intel_msic_gpio_pdata *pdata = dev_get_platdata(dev);
struct msic_gpio *mg;
int irq = platform_get_irq(pdev, 0);
int retval;
int i;
if (irq < 0) {
dev_err(dev, "no IRQ line: %d\n", irq);
return irq;
}
if (!pdata || !pdata->gpio_base) {
dev_err(dev, "incorrect or missing platform data\n");
return -EINVAL;
}
mg = kzalloc(sizeof(*mg), GFP_KERNEL);
if (!mg)
return -ENOMEM;
dev_set_drvdata(dev, mg);
mg->pdev = pdev;
mg->irq = irq;
mg->irq_base = pdata->gpio_base + MSIC_GPIO_IRQ_OFFSET;
mg->chip.label = "msic_gpio";
mg->chip.direction_input = msic_gpio_direction_input;
mg->chip.direction_output = msic_gpio_direction_output;
mg->chip.get = msic_gpio_get;
mg->chip.set = msic_gpio_set;
mg->chip.to_irq = msic_gpio_to_irq;
mg->chip.base = pdata->gpio_base;
mg->chip.ngpio = MSIC_NUM_GPIO;
mg->chip.can_sleep = true;
mg->chip.parent = dev;
mutex_init(&mg->buslock);
retval = gpiochip_add_data(&mg->chip, mg);
if (retval) {
dev_err(dev, "Adding MSIC gpio chip failed\n");
goto err;
}
for (i = 0; i < mg->chip.ngpio; i++) {
irq_set_chip_data(i + mg->irq_base, mg);
irq_set_chip_and_handler(i + mg->irq_base,
&msic_irqchip,
handle_simple_irq);
}
irq_set_chained_handler_and_data(mg->irq, msic_gpio_irq_handler, mg);
return 0;
err:
kfree(mg);
return retval;
}
static struct platform_driver platform_msic_gpio_driver = {
.driver = {
.name = "msic_gpio",
},
.probe = platform_msic_gpio_probe,
};
static int __init platform_msic_gpio_init(void)
{
return platform_driver_register(&platform_msic_gpio_driver);
}
subsys_initcall(platform_msic_gpio_init);
drivers/gpu/drm/gma500/Kconfig
View file @ 86b6d4f8
......@@ -30,6 +30,7 @@ config DRM_GMA3600
config DRM_MEDFIELD
bool "Intel Medfield support (Experimental)"
depends on DRM_GMA500 && X86_INTEL_MID
select INTEL_SCU_IPC
help
Say yes to include support for the Intel Medfield platform.
drivers/gpu/drm/gma500/mdfld_device.c
View file @ 86b6d4f8
......@@ -8,8 +8,6 @@
#include <linux/delay.h>
#include <linux/gpio/machine.h>
#include <asm/intel_scu_ipc.h>
#include "mdfld_dsi_output.h"
#include "mdfld_output.h"
#include "mid_bios.h"
......
drivers/gpu/drm/gma500/mdfld_dsi_output.c
View file @ 86b6d4f8
......@@ -30,8 +30,6 @@
#include <linux/pm_runtime.h>
#include <linux/gpio/consumer.h>
#include <asm/intel_scu_ipc.h>
#include "mdfld_dsi_dpi.h"
#include "mdfld_dsi_output.h"
#include "mdfld_dsi_pkg_sender.h"
......
drivers/gpu/drm/gma500/mdfld_output.c
View file @ 86b6d4f8
......@@ -25,6 +25,8 @@
* Scott Rowe <scott.m.rowe@intel.com>
*/
#include <asm/intel_scu_ipc.h>
#include "mdfld_output.h"
#include "mdfld_dsi_dpi.h"
#include "mdfld_dsi_output.h"
......@@ -58,11 +60,14 @@ static void mdfld_init_panel(struct drm_device *dev, int mipi_pipe,
}
}
int mdfld_output_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
dev_priv->scu = devm_intel_scu_ipc_dev_get(&dev->pdev->dev);
if (!dev_priv->scu)
return -EPROBE_DEFER;
/* FIXME: hardcoded for now */
dev_priv->mdfld_panel_id = TC35876X;
/* MIPI panel 1 */
......@@ -71,4 +76,3 @@ int mdfld_output_init(struct drm_device *dev)
mdfld_init_panel(dev, 1, HDMI);
return 0;
}
drivers/gpu/drm/gma500/oaktrail_device.c
View file @ 86b6d4f8
......@@ -10,9 +10,6 @@
#include <linux/dmi.h>
#include <linux/module.h>
#include <asm/intel-mid.h>
#include <asm/intel_scu_ipc.h>
#include <drm/drm.h>
#include "intel_bios.h"
......
drivers/gpu/drm/gma500/psb_drv.h
View file @ 86b6d4f8
......@@ -428,6 +428,8 @@ struct psb_ops;
#define PSB_NUM_PIPE 3
struct intel_scu_ipc_dev;
struct drm_psb_private {
struct drm_device *dev;
struct pci_dev *aux_pdev; /* Currently only used by mrst */
......@@ -567,6 +569,7 @@ struct drm_psb_private {
* Used for modifying backlight from
* xrandr -- consider removing and using HAL instead
*/
struct intel_scu_ipc_dev *scu;
struct backlight_device *backlight_device;
struct drm_property *backlight_property;
bool backlight_enabled;
......
drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c
View file @ 86b6d4f8
......@@ -444,6 +444,7 @@ static inline u16 calc_clkdiv(unsigned long baseclk, unsigned int f)
static void tc35876x_brightness_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
int ret;
u8 pwmctrl;
u16 clkdiv;
......@@ -451,23 +452,23 @@ static void tc35876x_brightness_init(struct drm_device *dev)
/* Make sure the PWM reference is the 19.2 MHz system clock. Read first
* instead of setting directly to catch potential conflicts between PWM
* users. */
ret = intel_scu_ipc_ioread8(GPIOPWMCTRL, &pwmctrl);
ret = intel_scu_ipc_dev_ioread8(dev_priv->scu, GPIOPWMCTRL, &pwmctrl);
if (ret || pwmctrl != 0x01) {
if (ret)
dev_err(&dev->pdev->dev, "GPIOPWMCTRL read failed\n");
else
dev_warn(&dev->pdev->dev, "GPIOPWMCTRL was not set to system clock (pwmctrl = 0x%02x)\n", pwmctrl);
ret = intel_scu_ipc_iowrite8(GPIOPWMCTRL, 0x01);
ret = intel_scu_ipc_dev_iowrite8(dev_priv->scu, GPIOPWMCTRL, 0x01);
if (ret)
dev_err(&dev->pdev->dev, "GPIOPWMCTRL set failed\n");
}
clkdiv = calc_clkdiv(SYSTEMCLK, PWM_FREQUENCY);
ret = intel_scu_ipc_iowrite8(PWM0CLKDIV1, (clkdiv >> 8) & 0xff);
ret = intel_scu_ipc_dev_iowrite8(dev_priv->scu, PWM0CLKDIV1, (clkdiv >> 8) & 0xff);
if (!ret)
ret = intel_scu_ipc_iowrite8(PWM0CLKDIV0, clkdiv & 0xff);
ret = intel_scu_ipc_dev_iowrite8(dev_priv->scu, PWM0CLKDIV0, clkdiv & 0xff);
if (ret)
dev_err(&dev->pdev->dev, "PWM0CLKDIV set failed\n");
......@@ -480,6 +481,7 @@ static void tc35876x_brightness_init(struct drm_device *dev)
void tc35876x_brightness_control(struct drm_device *dev, int level)
{
struct drm_psb_private *dev_priv = dev->dev_private;
int ret;
u8 duty_val;
u8 panel_duty_val;
......@@ -495,7 +497,7 @@ void tc35876x_brightness_control(struct drm_device *dev, int level)
panel_duty_val = (2 * level - 100) * 0xA9 /
MDFLD_DSI_BRIGHTNESS_MAX_LEVEL + 0x56;
ret = intel_scu_ipc_iowrite8(PWM0DUTYCYCLE, duty_val);
ret = intel_scu_ipc_dev_iowrite8(dev_priv->scu, PWM0DUTYCYCLE, duty_val);
if (ret)
dev_err(&tc35876x_client->dev, "%s: ipc write fail\n",
__func__);
......@@ -516,11 +518,9 @@ void tc35876x_toshiba_bridge_panel_off(struct drm_device *dev)
dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
if (bridge_bl_enable)
gpiod_set_value_cansleep(bridge_bl_enable, 0);
gpiod_set_value_cansleep(bridge_bl_enable, 0);
if (backlight_voltage)
gpiod_set_value_cansleep(backlight_voltage, 0);
gpiod_set_value_cansleep(backlight_voltage, 0);
}
void tc35876x_toshiba_bridge_panel_on(struct drm_device *dev)
......@@ -565,8 +565,7 @@ void tc35876x_toshiba_bridge_panel_on(struct drm_device *dev)
"i2c write failed (%d)\n", ret);
}
if (bridge_bl_enable)
gpiod_set_value_cansleep(bridge_bl_enable, 1);
gpiod_set_value_cansleep(bridge_bl_enable, 1);
tc35876x_brightness_control(dev, dev_priv->brightness_adjusted);
}
......@@ -640,20 +639,17 @@ static int tc35876x_bridge_probe(struct i2c_client *client,
bridge_reset = devm_gpiod_get_optional(&client->dev, "bridge-reset", GPIOD_OUT_LOW);
if (IS_ERR(bridge_reset))
return PTR_ERR(bridge_reset);
if (bridge_reset)
gpiod_set_consumer_name(bridge_reset, "tc35876x bridge reset");
gpiod_set_consumer_name(bridge_reset, "tc35876x bridge reset");
bridge_bl_enable = devm_gpiod_get_optional(&client->dev, "bl-en", GPIOD_OUT_LOW);
if (IS_ERR(bridge_bl_enable))
return PTR_ERR(bridge_bl_enable);
if (bridge_bl_enable)
gpiod_set_consumer_name(bridge_bl_enable, "tc35876x panel bl en");
gpiod_set_consumer_name(bridge_bl_enable, "tc35876x panel bl en");
backlight_voltage = devm_gpiod_get_optional(&client->dev, "vadd", GPIOD_OUT_LOW);
if (IS_ERR(backlight_voltage))
return PTR_ERR(backlight_voltage);
if (backlight_voltage)
gpiod_set_consumer_name(backlight_voltage, "tc35876x panel vadd");
gpiod_set_consumer_name(backlight_voltage, "tc35876x panel vadd");
tc35876x_client = client;
......
drivers/platform/x86/Kconfig
View file @ 86b6d4f8
......@@ -1327,21 +1327,6 @@ config INTEL_CHTDC_TI_PWRBTN
To compile this driver as a module, choose M here: the module
will be called intel_chtdc_ti_pwrbtn.
config INTEL_MFLD_THERMAL
tristate "Thermal driver for Intel Medfield platform"
depends on MFD_INTEL_MSIC && THERMAL
help
Say Y here to enable thermal driver support for the Intel Medfield
platform.
config INTEL_MID_POWER_BUTTON
tristate "power button driver for Intel MID platforms"
depends on INTEL_SCU && INPUT
help
This driver handles the power button on the Intel MID platforms.
If unsure, say N.
config INTEL_MRFLD_PWRBTN
tristate "Intel Merrifield Basin Cove power button driver"
depends on INTEL_SOC_PMIC_MRFLD
......@@ -1439,6 +1424,14 @@ config INTEL_SCU_PLATFORM
and SCU (sometimes called PMC as well). The driver currently
supports Intel Elkhart Lake and compatible platforms.
config INTEL_SCU_WDT
bool
default INTEL_SCU_PCI
depends on INTEL_MID_WATCHDOG
help
This is a specific platform code to instantiate watchdog device
on ACPI-based Intel MID platforms.
config INTEL_SCU_IPC_UTIL
tristate "Intel SCU IPC utility driver"
depends on INTEL_SCU
......
drivers/platform/x86/Makefile
View file @ 86b6d4f8
......@@ -137,8 +137,6 @@ obj-$(CONFIG_INTEL_UNCORE_FREQ_CONTROL) += intel-uncore-frequency.o
# Intel PMIC / PMC / P-Unit devices
obj-$(CONFIG_INTEL_BXTWC_PMIC_TMU) += intel_bxtwc_tmu.o
obj-$(CONFIG_INTEL_CHTDC_TI_PWRBTN) += intel_chtdc_ti_pwrbtn.o
obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o
obj-$(CONFIG_INTEL_MID_POWER_BUTTON) += intel_mid_powerbtn.o
obj-$(CONFIG_INTEL_MRFLD_PWRBTN) += intel_mrfld_pwrbtn.o
obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core.o intel_pmc_core_pltdrv.o
obj-$(CONFIG_INTEL_PMT_CLASS) += intel_pmt_class.o
......@@ -148,6 +146,7 @@ obj-$(CONFIG_INTEL_PUNIT_IPC) += intel_punit_ipc.o
obj-$(CONFIG_INTEL_SCU_IPC) += intel_scu_ipc.o
obj-$(CONFIG_INTEL_SCU_PCI) += intel_scu_pcidrv.o
obj-$(CONFIG_INTEL_SCU_PLATFORM) += intel_scu_pltdrv.o
obj-$(CONFIG_INTEL_SCU_WDT) += intel_scu_wdt.o
obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
obj-$(CONFIG_INTEL_TELEMETRY) += intel_telemetry_core.o \
intel_telemetry_pltdrv.o \
......
drivers/platform/x86/intel_mid_powerbtn.c deleted 100644 → 0
View file @ 92bf2261
// SPDX-License-Identifier: GPL-2.0
/*
* Power button driver for Intel MID platforms.
*
* Copyright (C) 2010,2017 Intel Corp
*
* Author: Hong Liu <hong.liu@intel.com>
* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
*/
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/intel_msic.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_wakeirq.h>
#include <linux/slab.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include <asm/intel_scu_ipc.h>
#define DRIVER_NAME "msic_power_btn"
#define MSIC_PB_LEVEL (1 << 3) /* 1 - release, 0 - press */
/*
* MSIC document ti_datasheet defines the 1st bit reg 0x21 is used to mask
* power button interrupt
*/
#define MSIC_PWRBTNM (1 << 0)
/* Intel Tangier */
#define BCOVE_PB_LEVEL (1 << 4) /* 1 - release, 0 - press */
/* Basin Cove PMIC */
#define BCOVE_PBIRQ 0x02
#define BCOVE_IRQLVL1MSK 0x0c
#define BCOVE_PBIRQMASK 0x0d
#define BCOVE_PBSTATUS 0x27
struct mid_pb_ddata {
struct device *dev;
int irq;
struct input_dev *input;
unsigned short mirqlvl1_addr;
unsigned short pbstat_addr;
u8 pbstat_mask;
struct intel_scu_ipc_dev *scu;
int (*setup)(struct mid_pb_ddata *ddata);
};
static int mid_pbstat(struct mid_pb_ddata *ddata, int *value)
{
struct input_dev *input = ddata->input;
int ret;
u8 pbstat;
ret = intel_scu_ipc_dev_ioread8(ddata->scu, ddata->pbstat_addr,
&pbstat);
if (ret)
return ret;
dev_dbg(input->dev.parent, "PB_INT status= %d\n", pbstat);
*value = !(pbstat & ddata->pbstat_mask);
return 0;
}
static int mid_irq_ack(struct mid_pb_ddata *ddata)
{
return intel_scu_ipc_dev_update(ddata->scu, ddata->mirqlvl1_addr, 0,
MSIC_PWRBTNM);
}
static int mrfld_setup(struct mid_pb_ddata *ddata)
{
/* Unmask the PBIRQ and MPBIRQ on Tangier */
intel_scu_ipc_dev_update(ddata->scu, BCOVE_PBIRQ, 0, MSIC_PWRBTNM);
intel_scu_ipc_dev_update(ddata->scu, BCOVE_PBIRQMASK, 0, MSIC_PWRBTNM);
return 0;
}
static irqreturn_t mid_pb_isr(int irq, void *dev_id)
{
struct mid_pb_ddata *ddata = dev_id;
struct input_dev *input = ddata->input;
int value = 0;
int ret;
ret = mid_pbstat(ddata, &value);
if (ret < 0) {
dev_err(input->dev.parent,
"Read error %d while reading MSIC_PB_STATUS\n", ret);
} else {
input_event(input, EV_KEY, KEY_POWER, value);
input_sync(input);
}
mid_irq_ack(ddata);
return IRQ_HANDLED;
}
static const struct mid_pb_ddata mfld_ddata = {
.mirqlvl1_addr = INTEL_MSIC_IRQLVL1MSK,
.pbstat_addr = INTEL_MSIC_PBSTATUS,
.pbstat_mask = MSIC_PB_LEVEL,
};
static const struct mid_pb_ddata mrfld_ddata = {
.mirqlvl1_addr = BCOVE_IRQLVL1MSK,
.pbstat_addr = BCOVE_PBSTATUS,
.pbstat_mask = BCOVE_PB_LEVEL,
.setup = mrfld_setup,
};
static const struct x86_cpu_id mid_pb_cpu_ids[] = {
X86_MATCH_INTEL_FAM6_MODEL(ATOM_SALTWELL_MID, &mfld_ddata),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT_MID, &mrfld_ddata),
{}
};
static int mid_pb_probe(struct platform_device *pdev)
{
const struct x86_cpu_id *id;
struct mid_pb_ddata *ddata;
struct input_dev *input;
int irq = platform_get_irq(pdev, 0);
int error;
id = x86_match_cpu(mid_pb_cpu_ids);
if (!id)
return -ENODEV;
if (irq < 0) {
dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
return irq;
}
input = devm_input_allocate_device(&pdev->dev);
if (!input)
return -ENOMEM;
input->name = pdev->name;
input->phys = "power-button/input0";
input->id.bustype = BUS_HOST;
input->dev.parent = &pdev->dev;
input_set_capability(input, EV_KEY, KEY_POWER);
ddata = devm_kmemdup(&pdev->dev, (void *)id->driver_data,
sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
ddata->dev = &pdev->dev;
ddata->irq = irq;
ddata->input = input;
if (ddata->setup) {
error = ddata->setup(ddata);
if (error)
return error;
}
ddata->scu = devm_intel_scu_ipc_dev_get(&pdev->dev);
if (!ddata->scu)
return -EPROBE_DEFER;
error = devm_request_threaded_irq(&pdev->dev, irq, NULL, mid_pb_isr,
IRQF_ONESHOT, DRIVER_NAME, ddata);
if (error) {
dev_err(&pdev->dev,
"Unable to request irq %d for MID power button\n", irq);
return error;
}
error = input_register_device(input);
if (error) {
dev_err(&pdev->dev,
"Unable to register input dev, error %d\n", error);
return error;
}
platform_set_drvdata(pdev, ddata);
/*
* SCU firmware might send power button interrupts to IA core before
* kernel boots and doesn't get EOI from IA core. The first bit of
* MSIC reg 0x21 is kept masked, and SCU firmware doesn't send new
* power interrupt to Android kernel. Unmask the bit when probing
* power button in kernel.
* There is a very narrow race between irq handler and power button
* initialization. The race happens rarely. So we needn't worry
* about it.
*/
error = mid_irq_ack(ddata);
if (error) {
dev_err(&pdev->dev,
"Unable to clear power button interrupt, error: %d\n",
error);
return error;
}
device_init_wakeup(&pdev->dev, true);
dev_pm_set_wake_irq(&pdev->dev, irq);
return 0;
}
static int mid_pb_remove(struct platform_device *pdev)
{
dev_pm_clear_wake_irq(&pdev->dev);
device_init_wakeup(&pdev->dev, false);
return 0;
}
static struct platform_driver mid_pb_driver = {
.driver = {
.name = DRIVER_NAME,
},
.probe = mid_pb_probe,
.remove = mid_pb_remove,
};
module_platform_driver(mid_pb_driver);
MODULE_AUTHOR("Hong Liu <hong.liu@intel.com>");
MODULE_DESCRIPTION("Intel MID Power Button Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRIVER_NAME);
drivers/platform/x86/intel_mid_thermal.c deleted 100644 → 0
View file @ 92bf2261
This diff is collapsed.
arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c → drivers/platform/x86/intel_scu_wdt.c
View file @ 86b6d4f8
......@@ -11,8 +11,9 @@
#include <linux/platform_device.h>
#include <linux/platform_data/intel-mid_wdt.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include <asm/intel-mid.h>
#include <asm/intel_scu_ipc.h>
#include <asm/io_apic.h>
#include <asm/hw_irq.h>
......@@ -49,34 +50,26 @@ static struct intel_mid_wdt_pdata tangier_pdata = {
.probe = tangier_probe,
};
static int wdt_scu_status_change(struct notifier_block *nb,
unsigned long code, void *data)
{
if (code == SCU_DOWN) {
platform_device_unregister(&wdt_dev);
return 0;
}
return platform_device_register(&wdt_dev);
}
static struct notifier_block wdt_scu_notifier = {
.notifier_call = wdt_scu_status_change,
static const struct x86_cpu_id intel_mid_cpu_ids[] = {
X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT_MID, &tangier_pdata),
{}
};
static int __init register_mid_wdt(void)
{
if (intel_mid_identify_cpu() != INTEL_MID_CPU_CHIP_TANGIER)
return -ENODEV;
const struct x86_cpu_id *id;
wdt_dev.dev.platform_data = &tangier_pdata;
/*
* We need to be sure that the SCU IPC is ready before watchdog device
* can be registered:
*/
intel_scu_notifier_add(&wdt_scu_notifier);
id = x86_match_cpu(intel_mid_cpu_ids);
if (!id)
return -ENODEV;
return 0;
wdt_dev.dev.platform_data = (struct intel_mid_wdt_pdata *)id->driver_data;
return platform_device_register(&wdt_dev);
}
arch_initcall(register_mid_wdt);
static void __exit unregister_mid_wdt(void)
{
platform_device_unregister(&wdt_dev);
}
__exitcall(unregister_mid_wdt);
drivers/rtc/Kconfig
View file @ 86b6d4f8
......@@ -973,18 +973,6 @@ config RTC_DRV_ALPHA
Direct support for the real-time clock found on every Alpha
system, specifically MC146818 compatibles. If in doubt, say Y.
config RTC_DRV_VRTC
tristate "Virtual RTC for Intel MID platforms"
depends on X86_INTEL_MID
default y if X86_INTEL_MID
help
Say "yes" here to get direct support for the real time clock
found on Moorestown platforms. The VRTC is a emulated RTC that
derives its clock source from a real RTC in the PMIC. The MC146818
style programming interface is mostly conserved, but any
updates are done via IPC calls to the system controller FW.
config RTC_DRV_DS1216
tristate "Dallas DS1216"
depends on SNI_RM
......
drivers/rtc/Makefile
View file @ 86b6d4f8
......@@ -174,7 +174,6 @@ obj-$(CONFIG_RTC_DRV_TWL4030) += rtc-twl.o
obj-$(CONFIG_RTC_DRV_TX4939) += rtc-tx4939.o
obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o
obj-$(CONFIG_RTC_DRV_VR41XX) += rtc-vr41xx.o
obj-$(CONFIG_RTC_DRV_VRTC) += rtc-mrst.o
obj-$(CONFIG_RTC_DRV_VT8500) += rtc-vt8500.o
obj-$(CONFIG_RTC_DRV_WILCO_EC) += rtc-wilco-ec.o
obj-$(CONFIG_RTC_DRV_WM831X) += rtc-wm831x.o
......
drivers/rtc/rtc-mrst.c deleted 100644 → 0
View file @ 92bf2261
This diff is collapsed.
drivers/watchdog/Kconfig
View file @ 86b6d4f8
......@@ -1219,15 +1219,6 @@ config IE6XX_WDT
To compile this driver as a module, choose M here: the
module will be called ie6xx_wdt.
config INTEL_SCU_WATCHDOG
bool "Intel SCU Watchdog for Mobile Platforms"
depends on X86_INTEL_MID
help
Hardware driver for the watchdog time built into the Intel SCU
for Intel Mobile Platforms.
To compile this driver as a module, choose M here.
config INTEL_MID_WATCHDOG
tristate "Intel MID Watchdog Timer"
depends on X86_INTEL_MID
......
drivers/watchdog/Makefile
View file @ 86b6d4f8
......@@ -140,7 +140,6 @@ obj-$(CONFIG_W83877F_WDT) += w83877f_wdt.o
obj-$(CONFIG_W83977F_WDT) += w83977f_wdt.o
obj-$(CONFIG_MACHZ_WDT) += machzwd.o
obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o
obj-$(CONFIG_INTEL_SCU_WATCHDOG) += intel_scu_watchdog.o
obj-$(CONFIG_INTEL_MID_WATCHDOG) += intel-mid_wdt.o
obj-$(CONFIG_INTEL_MEI_WDT) += mei_wdt.o
obj-$(CONFIG_NI903X_WDT) += ni903x_wdt.o
......
drivers/watchdog/intel-mid_wdt.c
View file @ 86b6d4f8
......@@ -154,6 +154,10 @@ static int mid_wdt_probe(struct platform_device *pdev)
watchdog_set_nowayout(wdt_dev, WATCHDOG_NOWAYOUT);
watchdog_set_drvdata(wdt_dev, mid);
mid->scu = devm_intel_scu_ipc_dev_get(dev);
if (!mid->scu)
return -EPROBE_DEFER;
ret = devm_request_irq(dev, pdata->irq, mid_wdt_irq,
IRQF_SHARED | IRQF_NO_SUSPEND, "watchdog",
wdt_dev);
......@@ -162,10 +166,6 @@ static int mid_wdt_probe(struct platform_device *pdev)
return ret;
}
mid->scu = devm_intel_scu_ipc_dev_get(dev);
if (!mid->scu)
return -EPROBE_DEFER;
/*
* The firmware followed by U-Boot leaves the watchdog running
* with the default threshold which may vary. When we get here
......
drivers/watchdog/intel_scu_watchdog.c deleted 100644 → 0
View file @ 92bf2261
This diff is collapsed.
drivers/watchdog/intel_scu_watchdog.h deleted 100644 → 0
View file @ 92bf2261
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Intel_SCU 0.2: An Intel SCU IOH Based Watchdog Device
* for Intel part #(s):
* - AF82MP20 PCH
*
* Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
*/
#ifndef __INTEL_SCU_WATCHDOG_H
#define __INTEL_SCU_WATCHDOG_H
#define WDT_VER "0.3"
/* minimum time between interrupts */
#define MIN_TIME_CYCLE 1
/* Time from warning to reboot is 2 seconds */
#define DEFAULT_SOFT_TO_HARD_MARGIN 2
#define MAX_TIME 170
#define DEFAULT_TIME 5
#define MAX_SOFT_TO_HARD_MARGIN (MAX_TIME-MIN_TIME_CYCLE)
/* Ajustment to clock tick frequency to make timing come out right */
#define FREQ_ADJUSTMENT 8
struct intel_scu_watchdog_dev {
ulong driver_open;
ulong driver_closed;
u32 timer_started;
u32 timer_set;
u32 threshold;
u32 soft_threshold;
u32 __iomem *timer_load_count_addr;
u32 __iomem *timer_current_value_addr;
u32 __iomem *timer_control_addr;
u32 __iomem *timer_clear_interrupt_addr;
u32 __iomem *timer_interrupt_status_addr;
struct sfi_timer_table_entry *timer_tbl_ptr;
struct notifier_block intel_scu_notifier;
struct miscdevice miscdev;
};
extern int sfi_mtimer_num;
/* extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint); */
#endif /* __INTEL_SCU_WATCHDOG_H */
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