Merge tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
 "Highlights:

   - Microsoft Surface devices System Aggregator Module support

   - SW_TABLET_MODE reporting improvements

   - thinkpad_acpi keyboard language setting support

   - platform / DPTF profile settings support:

      - Base / userspace API parts merged from Rafael's acpi-platform
        branch

      - thinkpad_acpi and ideapad-laptop support through pdx86

   - Remove support for some obsolete Intel MID platforms through
     merging of the shared intel-mid-removal branch

   - Big cleanup of the ideapad-laptop driver

   - Misc other fixes / new hw support / quirks"

* tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits)
  platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds
  platform/surface: aggregator: Fix access of unaligned value
  tools/power/x86/intel-speed-select: Update version to 1.8
  tools/power/x86/intel-speed-select: Add new command to get/set TRL
  tools/power/x86/intel-speed-select: Add new command turbo-mode
  Platform: OLPC: Constify static struct regulator_ops
  platform/surface: Add Surface Hot-Plug driver
  platform/x86: intel_scu_wdt: Drop mistakenly added const
  platform/x86: Kconfig: add missing selects for ideapad-laptop
  platform/x86: acer-wmi: Don't use ACPI_EXCEPTION()
  platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on
  platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings
  platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning
  platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning
  platform/x86: Move all dell drivers to their own subdirectory
  Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute
  Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths
  platform/x86: ideapad-laptop: add "always on USB charging" control support
  platform/x86: ideapad-laptop: add keyboard backlight control support
  platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs
  ...

3 files changed, 0 insertions, 534 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6123f9f4fbc9..2a402c10f8f1 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -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
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index bb8f319b09fb..f8ac4f574522 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -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
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
deleted file mode 100644
index 421b3b6071b6..000000000000
--- a/drivers/rtc/rtc-mrst.c
+++ /dev/null
@@ -1,521 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * rtc-mrst.c: Driver for Moorestown virtual RTC
- *
- * (C) Copyright 2009 Intel Corporation
- * Author: Jacob Pan (jacob.jun.pan@intel.com)
- *	   Feng Tang (feng.tang@intel.com)
- *
- * Note:
- * VRTC is emulated by system controller firmware, the real HW
- * RTC is located in the PMIC device. SCU FW shadows PMIC RTC
- * in a memory mapped IO space that is visible to the host IA
- * processor.
- *
- * This driver is based upon drivers/rtc/rtc-cmos.c
- */
-
-/*
- * Note:
- *  * vRTC only supports binary mode and 24H mode
- *  * vRTC only support PIE and AIE, no UIE, and its PIE only happens
- *    at 23:59:59pm everyday, no support for adjustable frequency
- *  * Alarm function is also limited to hr/min/sec.
- */
-
-#include <linux/mod_devicetable.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/kernel.h>
-#include <linux/mc146818rtc.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sfi.h>
-
-#include <asm/intel_scu_ipc.h>
-#include <asm/intel-mid.h>
-#include <asm/intel_mid_vrtc.h>
-
-struct mrst_rtc {
-	struct rtc_device	*rtc;
-	struct device		*dev;
-	int			irq;
-
-	u8			enabled_wake;
-	u8			suspend_ctrl;
-};
-
-static const char driver_name[] = "rtc_mrst";
-
-#define	RTC_IRQMASK	(RTC_PF | RTC_AF)
-
-static inline int is_intr(u8 rtc_intr)
-{
-	if (!(rtc_intr & RTC_IRQF))
-		return 0;
-	return rtc_intr & RTC_IRQMASK;
-}
-
-static inline unsigned char vrtc_is_updating(void)
-{
-	unsigned char uip;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	uip = (vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-	return uip;
-}
-
-/*
- * rtc_time's year contains the increment over 1900, but vRTC's YEAR
- * register can't be programmed to value larger than 0x64, so vRTC
- * driver chose to use 1972 (1970 is UNIX time start point) as the base,
- * and does the translation at read/write time.
- *
- * Why not just use 1970 as the offset? it's because using 1972 will
- * make it consistent in leap year setting for both vrtc and low-level
- * physical rtc devices. Then why not use 1960 as the offset? If we use
- * 1960, for a device's first use, its YEAR register is 0 and the system
- * year will be parsed as 1960 which is not a valid UNIX time and will
- * cause many applications to fail mysteriously.
- */
-static int mrst_read_time(struct device *dev, struct rtc_time *time)
-{
-	unsigned long flags;
-
-	if (vrtc_is_updating())
-		msleep(20);
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	time->tm_sec = vrtc_cmos_read(RTC_SECONDS);
-	time->tm_min = vrtc_cmos_read(RTC_MINUTES);
-	time->tm_hour = vrtc_cmos_read(RTC_HOURS);
-	time->tm_mday = vrtc_cmos_read(RTC_DAY_OF_MONTH);
-	time->tm_mon = vrtc_cmos_read(RTC_MONTH);
-	time->tm_year = vrtc_cmos_read(RTC_YEAR);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	/* Adjust for the 1972/1900 */
-	time->tm_year += 72;
-	time->tm_mon--;
-	return 0;
-}
-
-static int mrst_set_time(struct device *dev, struct rtc_time *time)
-{
-	int ret;
-	unsigned long flags;
-	unsigned char mon, day, hrs, min, sec;
-	unsigned int yrs;
-
-	yrs = time->tm_year;
-	mon = time->tm_mon + 1;   /* tm_mon starts at zero */
-	day = time->tm_mday;
-	hrs = time->tm_hour;
-	min = time->tm_min;
-	sec = time->tm_sec;
-
-	if (yrs < 72 || yrs > 172)
-		return -EINVAL;
-	yrs -= 72;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-
-	vrtc_cmos_write(yrs, RTC_YEAR);
-	vrtc_cmos_write(mon, RTC_MONTH);
-	vrtc_cmos_write(day, RTC_DAY_OF_MONTH);
-	vrtc_cmos_write(hrs, RTC_HOURS);
-	vrtc_cmos_write(min, RTC_MINUTES);
-	vrtc_cmos_write(sec, RTC_SECONDS);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	ret = intel_scu_ipc_simple_command(IPCMSG_VRTC, IPC_CMD_VRTC_SETTIME);
-	return ret;
-}
-
-static int mrst_read_alarm(struct device *dev, struct rtc_wkalrm *t)
-{
-	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
-	unsigned char rtc_control;
-
-	if (mrst->irq <= 0)
-		return -EIO;
-
-	/* vRTC only supports binary mode */
-	spin_lock_irq(&rtc_lock);
-	t->time.tm_sec = vrtc_cmos_read(RTC_SECONDS_ALARM);
-	t->time.tm_min = vrtc_cmos_read(RTC_MINUTES_ALARM);
-	t->time.tm_hour = vrtc_cmos_read(RTC_HOURS_ALARM);
-
-	rtc_control = vrtc_cmos_read(RTC_CONTROL);
-	spin_unlock_irq(&rtc_lock);
-
-	t->enabled = !!(rtc_control & RTC_AIE);
-	t->pending = 0;
-
-	return 0;
-}
-
-static void mrst_checkintr(struct mrst_rtc *mrst, unsigned char rtc_control)
-{
-	unsigned char	rtc_intr;
-
-	/*
-	 * NOTE after changing RTC_xIE bits we always read INTR_FLAGS;
-	 * allegedly some older rtcs need that to handle irqs properly
-	 */
-	rtc_intr = vrtc_cmos_read(RTC_INTR_FLAGS);
-	rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF;
-	if (is_intr(rtc_intr))
-		rtc_update_irq(mrst->rtc, 1, rtc_intr);
-}
-
-static void mrst_irq_enable(struct mrst_rtc *mrst, unsigned char mask)
-{
-	unsigned char	rtc_control;
-
-	/*
-	 * Flush any pending IRQ status, notably for update irqs,
-	 * before we enable new IRQs
-	 */
-	rtc_control = vrtc_cmos_read(RTC_CONTROL);
-	mrst_checkintr(mrst, rtc_control);
-
-	rtc_control |= mask;
-	vrtc_cmos_write(rtc_control, RTC_CONTROL);
-
-	mrst_checkintr(mrst, rtc_control);
-}
-
-static void mrst_irq_disable(struct mrst_rtc *mrst, unsigned char mask)
-{
-	unsigned char	rtc_control;
-
-	rtc_control = vrtc_cmos_read(RTC_CONTROL);
-	rtc_control &= ~mask;
-	vrtc_cmos_write(rtc_control, RTC_CONTROL);
-	mrst_checkintr(mrst, rtc_control);
-}
-
-static int mrst_set_alarm(struct device *dev, struct rtc_wkalrm *t)
-{
-	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
-	unsigned char hrs, min, sec;
-	int ret = 0;
-
-	if (!mrst->irq)
-		return -EIO;
-
-	hrs = t->time.tm_hour;
-	min = t->time.tm_min;
-	sec = t->time.tm_sec;
-
-	spin_lock_irq(&rtc_lock);
-	/* Next rtc irq must not be from previous alarm setting */
-	mrst_irq_disable(mrst, RTC_AIE);
-
-	/* Update alarm */
-	vrtc_cmos_write(hrs, RTC_HOURS_ALARM);
-	vrtc_cmos_write(min, RTC_MINUTES_ALARM);
-	vrtc_cmos_write(sec, RTC_SECONDS_ALARM);
-
-	spin_unlock_irq(&rtc_lock);
-
-	ret = intel_scu_ipc_simple_command(IPCMSG_VRTC, IPC_CMD_VRTC_SETALARM);
-	if (ret)
-		return ret;
-
-	spin_lock_irq(&rtc_lock);
-	if (t->enabled)
-		mrst_irq_enable(mrst, RTC_AIE);
-
-	spin_unlock_irq(&rtc_lock);
-
-	return 0;
-}
-
-/* Currently, the vRTC doesn't support UIE ON/OFF */
-static int mrst_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
-{
-	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
-	unsigned long	flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-	if (enabled)
-		mrst_irq_enable(mrst, RTC_AIE);
-	else
-		mrst_irq_disable(mrst, RTC_AIE);
-	spin_unlock_irqrestore(&rtc_lock, flags);
-	return 0;
-}
-
-
-#if IS_ENABLED(CONFIG_RTC_INTF_PROC)
-
-static int mrst_procfs(struct device *dev, struct seq_file *seq)
-{
-	unsigned char	rtc_control;
-
-	spin_lock_irq(&rtc_lock);
-	rtc_control = vrtc_cmos_read(RTC_CONTROL);
-	spin_unlock_irq(&rtc_lock);
-
-	seq_printf(seq,
-		   "periodic_IRQ\t: %s\n"
-		   "alarm\t\t: %s\n"
-		   "BCD\t\t: no\n"
-		   "periodic_freq\t: daily (not adjustable)\n",
-		   (rtc_control & RTC_PIE) ? "on" : "off",
-		   (rtc_control & RTC_AIE) ? "on" : "off");
-
-	return 0;
-}
-
-#else
-#define	mrst_procfs	NULL
-#endif
-
-static const struct rtc_class_ops mrst_rtc_ops = {
-	.read_time	= mrst_read_time,
-	.set_time	= mrst_set_time,
-	.read_alarm	= mrst_read_alarm,
-	.set_alarm	= mrst_set_alarm,
-	.proc		= mrst_procfs,
-	.alarm_irq_enable = mrst_rtc_alarm_irq_enable,
-};
-
-static struct mrst_rtc	mrst_rtc;
-
-/*
- * When vRTC IRQ is captured by SCU FW, FW will clear the AIE bit in
- * Reg B, so no need for this driver to clear it
- */
-static irqreturn_t mrst_rtc_irq(int irq, void *p)
-{
-	u8 irqstat;
-
-	spin_lock(&rtc_lock);
-	/* This read will clear all IRQ flags inside Reg C */
-	irqstat = vrtc_cmos_read(RTC_INTR_FLAGS);
-	spin_unlock(&rtc_lock);
-
-	irqstat &= RTC_IRQMASK | RTC_IRQF;
-	if (is_intr(irqstat)) {
-		rtc_update_irq(p, 1, irqstat);
-		return IRQ_HANDLED;
-	}
-	return IRQ_NONE;
-}
-
-static int vrtc_mrst_do_probe(struct device *dev, struct resource *iomem,
-			      int rtc_irq)
-{
-	int retval = 0;
-	unsigned char rtc_control;
-
-	/* There can be only one ... */
-	if (mrst_rtc.dev)
-		return -EBUSY;
-
-	if (!iomem)
-		return -ENODEV;
-
-	iomem = devm_request_mem_region(dev, iomem->start, resource_size(iomem),
-					driver_name);
-	if (!iomem) {
-		dev_dbg(dev, "i/o mem already in use.\n");
-		return -EBUSY;
-	}
-
-	mrst_rtc.irq = rtc_irq;
-	mrst_rtc.dev = dev;
-	dev_set_drvdata(dev, &mrst_rtc);
-
-	mrst_rtc.rtc = devm_rtc_allocate_device(dev);
-	if (IS_ERR(mrst_rtc.rtc))
-		return PTR_ERR(mrst_rtc.rtc);
-
-	mrst_rtc.rtc->ops = &mrst_rtc_ops;
-
-	rename_region(iomem, dev_name(&mrst_rtc.rtc->dev));
-
-	spin_lock_irq(&rtc_lock);
-	mrst_irq_disable(&mrst_rtc, RTC_PIE | RTC_AIE);
-	rtc_control = vrtc_cmos_read(RTC_CONTROL);
-	spin_unlock_irq(&rtc_lock);
-
-	if (!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY)))
-		dev_dbg(dev, "TODO: support more than 24-hr BCD mode\n");
-
-	if (rtc_irq) {
-		retval = devm_request_irq(dev, rtc_irq, mrst_rtc_irq,
-					  0, dev_name(&mrst_rtc.rtc->dev),
-					  mrst_rtc.rtc);
-		if (retval < 0) {
-			dev_dbg(dev, "IRQ %d is already in use, err %d\n",
-				rtc_irq, retval);
-			goto cleanup0;
-		}
-	}
-
-	retval = devm_rtc_register_device(mrst_rtc.rtc);
-	if (retval)
-		goto cleanup0;
-
-	dev_dbg(dev, "initialised\n");
-	return 0;
-
-cleanup0:
-	mrst_rtc.dev = NULL;
-	dev_err(dev, "rtc-mrst: unable to initialise\n");
-	return retval;
-}
-
-static void rtc_mrst_do_shutdown(void)
-{
-	spin_lock_irq(&rtc_lock);
-	mrst_irq_disable(&mrst_rtc, RTC_IRQMASK);
-	spin_unlock_irq(&rtc_lock);
-}
-
-static void rtc_mrst_do_remove(struct device *dev)
-{
-	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
-
-	rtc_mrst_do_shutdown();
-
-	mrst->rtc = NULL;
-	mrst->dev = NULL;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int mrst_suspend(struct device *dev)
-{
-	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
-	unsigned char	tmp;
-
-	/* Only the alarm might be a wakeup event source */
-	spin_lock_irq(&rtc_lock);
-	mrst->suspend_ctrl = tmp = vrtc_cmos_read(RTC_CONTROL);
-	if (tmp & (RTC_PIE | RTC_AIE)) {
-		unsigned char	mask;
-
-		if (device_may_wakeup(dev))
-			mask = RTC_IRQMASK & ~RTC_AIE;
-		else
-			mask = RTC_IRQMASK;
-		tmp &= ~mask;
-		vrtc_cmos_write(tmp, RTC_CONTROL);
-
-		mrst_checkintr(mrst, tmp);
-	}
-	spin_unlock_irq(&rtc_lock);
-
-	if (tmp & RTC_AIE) {
-		mrst->enabled_wake = 1;
-		enable_irq_wake(mrst->irq);
-	}
-
-	dev_dbg(&mrst_rtc.rtc->dev, "suspend%s, ctrl %02x\n",
-			(tmp & RTC_AIE) ? ", alarm may wake" : "",
-			tmp);
-
-	return 0;
-}
-
-/*
- * We want RTC alarms to wake us from the deep power saving state
- */
-static inline int mrst_poweroff(struct device *dev)
-{
-	return mrst_suspend(dev);
-}
-
-static int mrst_resume(struct device *dev)
-{
-	struct mrst_rtc	*mrst = dev_get_drvdata(dev);
-	unsigned char tmp = mrst->suspend_ctrl;
-
-	/* Re-enable any irqs previously active */
-	if (tmp & RTC_IRQMASK) {
-		unsigned char	mask;
-
-		if (mrst->enabled_wake) {
-			disable_irq_wake(mrst->irq);
-			mrst->enabled_wake = 0;
-		}
-
-		spin_lock_irq(&rtc_lock);
-		do {
-			vrtc_cmos_write(tmp, RTC_CONTROL);
-
-			mask = vrtc_cmos_read(RTC_INTR_FLAGS);
-			mask &= (tmp & RTC_IRQMASK) | RTC_IRQF;
-			if (!is_intr(mask))
-				break;
-
-			rtc_update_irq(mrst->rtc, 1, mask);
-			tmp &= ~RTC_AIE;
-		} while (mask & RTC_AIE);
-		spin_unlock_irq(&rtc_lock);
-	}
-
-	dev_dbg(&mrst_rtc.rtc->dev, "resume, ctrl %02x\n", tmp);
-
-	return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(mrst_pm_ops, mrst_suspend, mrst_resume);
-#define MRST_PM_OPS (&mrst_pm_ops)
-
-#else
-#define MRST_PM_OPS NULL
-
-static inline int mrst_poweroff(struct device *dev)
-{
-	return -ENOSYS;
-}
-
-#endif
-
-static int vrtc_mrst_platform_probe(struct platform_device *pdev)
-{
-	return vrtc_mrst_do_probe(&pdev->dev,
-			platform_get_resource(pdev, IORESOURCE_MEM, 0),
-			platform_get_irq(pdev, 0));
-}
-
-static int vrtc_mrst_platform_remove(struct platform_device *pdev)
-{
-	rtc_mrst_do_remove(&pdev->dev);
-	return 0;
-}
-
-static void vrtc_mrst_platform_shutdown(struct platform_device *pdev)
-{
-	if (system_state == SYSTEM_POWER_OFF && !mrst_poweroff(&pdev->dev))
-		return;
-
-	rtc_mrst_do_shutdown();
-}
-
-MODULE_ALIAS("platform:vrtc_mrst");
-
-static struct platform_driver vrtc_mrst_platform_driver = {
-	.probe		= vrtc_mrst_platform_probe,
-	.remove		= vrtc_mrst_platform_remove,
-	.shutdown	= vrtc_mrst_platform_shutdown,
-	.driver = {
-		.name	= driver_name,
-		.pm	= MRST_PM_OPS,
-	}
-};
-
-module_platform_driver(vrtc_mrst_platform_driver);
-
-MODULE_AUTHOR("Jacob Pan; Feng Tang");
-MODULE_DESCRIPTION("Driver for Moorestown virtual RTC");
-MODULE_LICENSE("GPL");