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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-18 20:24:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-18 20:24:55 -0800
commit385336e321c41b5174055c0194b60c19a27cc5c5 (patch)
treea0b1a7c27bdf97b26130610e6e02565146b54738 /drivers/platform/x86/eeepc-laptop.c
parentebcffcda311c357c18985c9a13ae2a32f9a0f655 (diff)
parent200db647112d9a0f1dce273604f949f916bd2426 (diff)
Merge tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver update from Darren Hart: - thinkpad-acpi: Switch to software mute, cleanups - acerhdf: Bang-bang thermal governor, new models, cleanups - dell-laptop: New keyboard backlight support and documentation - toshiba_acpi: Keyboard backlight updates, hotkey handling - dell-wmi: Keypress filtering, WMI event processing - eeepc-laptop: Multiple cleanups, improved error handling, documentation - hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails - misc: Code cleanups, quirks, various new IDs * tag 'platform-drivers-x86-v3.19-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (33 commits) platform/x86/acerhdf: Still depends on THERMAL Documentation: Add entry for dell-laptop sysfs interface acpi: Remove _OSI(Linux) for ThinkPads thinkpad-acpi: Try to use full software mute control acerhdf: minor clean up acerhdf: added critical trip point acerhdf: Use bang-bang thermal governor acerhdf: Adding support for new models acerhdf: Adding support for "manual mode" dell-smo8800: Add more ACPI ids and change description of driver platform: x86: dell-laptop: Add support for keyboard backlight toshiba_acpi: Add keyboard backlight mode change event toshiba_acpi: Change notify funtion to handle more events toshiba_acpi: Move hotkey enabling code to its own function dell-wmi: Don't report keypresses on keybord illumination change dell-wmi: Don't report keypresses for radio state changes hp_wireless: Inform the user if hp_wireless_input_setup()/add() fails toshiba-acpi: Add missing ID (TOS6207) Sony-laptop: Deletion of an unnecessary check before the function call "pci_dev_put" platform: x86: Deletion of checks before backlight_device_unregister() ...
Diffstat (limited to 'drivers/platform/x86/eeepc-laptop.c')
-rw-r--r--drivers/platform/x86/eeepc-laptop.c213
1 files changed, 114 insertions, 99 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 5a54d35a61de..844c2096bde9 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -417,8 +417,7 @@ static ssize_t cpufv_disabled_store(struct device *dev,
switch (value) {
case 0:
if (eeepc->cpufv_disabled)
- pr_warn("cpufv enabled (not officially supported "
- "on this model)\n");
+ pr_warn("cpufv enabled (not officially supported on this model)\n");
eeepc->cpufv_disabled = false;
return count;
case 1:
@@ -580,59 +579,58 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
mutex_lock(&eeepc->hotplug_lock);
pci_lock_rescan_remove();
- if (eeepc->hotplug_slot) {
- port = acpi_get_pci_dev(handle);
- if (!port) {
- pr_warning("Unable to find port\n");
- goto out_unlock;
- }
+ if (!eeepc->hotplug_slot)
+ goto out_unlock;
- bus = port->subordinate;
+ port = acpi_get_pci_dev(handle);
+ if (!port) {
+ pr_warning("Unable to find port\n");
+ goto out_unlock;
+ }
- if (!bus) {
- pr_warn("Unable to find PCI bus 1?\n");
- goto out_put_dev;
- }
+ bus = port->subordinate;
- if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
- pr_err("Unable to read PCI config space?\n");
- goto out_put_dev;
- }
+ if (!bus) {
+ pr_warn("Unable to find PCI bus 1?\n");
+ goto out_put_dev;
+ }
+
+ if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
+ pr_err("Unable to read PCI config space?\n");
+ goto out_put_dev;
+ }
- absent = (l == 0xffffffff);
+ absent = (l == 0xffffffff);
- if (blocked != absent) {
- pr_warn("BIOS says wireless lan is %s, "
- "but the pci device is %s\n",
- blocked ? "blocked" : "unblocked",
- absent ? "absent" : "present");
- pr_warn("skipped wireless hotplug as probably "
- "inappropriate for this model\n");
+ if (blocked != absent) {
+ pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n",
+ blocked ? "blocked" : "unblocked",
+ absent ? "absent" : "present");
+ pr_warn("skipped wireless hotplug as probably inappropriate for this model\n");
+ goto out_put_dev;
+ }
+
+ if (!blocked) {
+ dev = pci_get_slot(bus, 0);
+ if (dev) {
+ /* Device already present */
+ pci_dev_put(dev);
goto out_put_dev;
}
-
- if (!blocked) {
- dev = pci_get_slot(bus, 0);
- if (dev) {
- /* Device already present */
- pci_dev_put(dev);
- goto out_put_dev;
- }
- dev = pci_scan_single_device(bus, 0);
- if (dev) {
- pci_bus_assign_resources(bus);
- pci_bus_add_device(dev);
- }
- } else {
- dev = pci_get_slot(bus, 0);
- if (dev) {
- pci_stop_and_remove_bus_device(dev);
- pci_dev_put(dev);
- }
+ dev = pci_scan_single_device(bus, 0);
+ if (dev) {
+ pci_bus_assign_resources(bus);
+ pci_bus_add_device(dev);
+ }
+ } else {
+ dev = pci_get_slot(bus, 0);
+ if (dev) {
+ pci_stop_and_remove_bus_device(dev);
+ pci_dev_put(dev);
}
-out_put_dev:
- pci_dev_put(port);
}
+out_put_dev:
+ pci_dev_put(port);
out_unlock:
pci_unlock_rescan_remove();
@@ -821,11 +819,15 @@ static int eeepc_new_rfkill(struct eeepc_laptop *eeepc,
return 0;
}
+static char EEEPC_RFKILL_NODE_1[] = "\\_SB.PCI0.P0P5";
+static char EEEPC_RFKILL_NODE_2[] = "\\_SB.PCI0.P0P6";
+static char EEEPC_RFKILL_NODE_3[] = "\\_SB.PCI0.P0P7";
+
static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc)
{
- eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
- eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
- eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
+ eeepc_unregister_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_1);
+ eeepc_unregister_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_2);
+ eeepc_unregister_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_3);
if (eeepc->wlan_rfkill) {
rfkill_unregister(eeepc->wlan_rfkill);
rfkill_destroy(eeepc->wlan_rfkill);
@@ -897,9 +899,9 @@ static int eeepc_rfkill_init(struct eeepc_laptop *eeepc)
if (result == -EBUSY)
result = 0;
- eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
- eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
- eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
+ eeepc_register_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_1);
+ eeepc_register_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_2);
+ eeepc_register_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_3);
exit:
if (result && result != -ENODEV)
@@ -915,7 +917,7 @@ static int eeepc_hotk_thaw(struct device *device)
struct eeepc_laptop *eeepc = dev_get_drvdata(device);
if (eeepc->wlan_rfkill) {
- bool wlan;
+ int wlan;
/*
* Work around bios bug - acpi _PTS turns off the wireless led
@@ -923,7 +925,8 @@ static int eeepc_hotk_thaw(struct device *device)
* we should kick it ourselves in case hibernation is aborted.
*/
wlan = get_acpi(eeepc, CM_ASL_WLAN);
- set_acpi(eeepc, CM_ASL_WLAN, wlan);
+ if (wlan >= 0)
+ set_acpi(eeepc, CM_ASL_WLAN, wlan);
}
return 0;
@@ -935,9 +938,9 @@ static int eeepc_hotk_restore(struct device *device)
/* Refresh both wlan rfkill state and pci hotplug */
if (eeepc->wlan_rfkill) {
- eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P5");
- eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P6");
- eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P7");
+ eeepc_rfkill_hotplug_update(eeepc, EEEPC_RFKILL_NODE_1);
+ eeepc_rfkill_hotplug_update(eeepc, EEEPC_RFKILL_NODE_2);
+ eeepc_rfkill_hotplug_update(eeepc, EEEPC_RFKILL_NODE_3);
}
if (eeepc->bluetooth_rfkill)
@@ -977,18 +980,28 @@ static struct platform_driver platform_driver = {
#define EEEPC_EC_SFB0 0xD0
#define EEEPC_EC_FAN_CTRL (EEEPC_EC_SFB0 + 3) /* Byte containing SF25 */
+static inline int eeepc_pwm_to_lmsensors(int value)
+{
+ return value * 255 / 100;
+}
+
+static inline int eeepc_lmsensors_to_pwm(int value)
+{
+ value = clamp_val(value, 0, 255);
+ return value * 100 / 255;
+}
+
static int eeepc_get_fan_pwm(void)
{
u8 value = 0;
ec_read(EEEPC_EC_FAN_PWM, &value);
- return value * 255 / 100;
+ return eeepc_pwm_to_lmsensors(value);
}
static void eeepc_set_fan_pwm(int value)
{
- value = clamp_val(value, 0, 255);
- value = value * 100 / 255;
+ value = eeepc_lmsensors_to_pwm(value);
ec_write(EEEPC_EC_FAN_PWM, value);
}
@@ -1002,15 +1015,19 @@ static int eeepc_get_fan_rpm(void)
return high << 8 | low;
}
+#define EEEPC_EC_FAN_CTRL_BIT 0x02
+#define EEEPC_FAN_CTRL_MANUAL 1
+#define EEEPC_FAN_CTRL_AUTO 2
+
static int eeepc_get_fan_ctrl(void)
{
u8 value = 0;
ec_read(EEEPC_EC_FAN_CTRL, &value);
- if (value & 0x02)
- return 1; /* manual */
+ if (value & EEEPC_EC_FAN_CTRL_BIT)
+ return EEEPC_FAN_CTRL_MANUAL;
else
- return 2; /* automatic */
+ return EEEPC_FAN_CTRL_AUTO;
}
static void eeepc_set_fan_ctrl(int manual)
@@ -1018,10 +1035,10 @@ static void eeepc_set_fan_ctrl(int manual)
u8 value = 0;
ec_read(EEEPC_EC_FAN_CTRL, &value);
- if (manual == 1)
- value |= 0x02;
+ if (manual == EEEPC_FAN_CTRL_MANUAL)
+ value |= EEEPC_EC_FAN_CTRL_BIT;
else
- value &= ~0x02;
+ value &= ~EEEPC_EC_FAN_CTRL_BIT;
ec_write(EEEPC_EC_FAN_CTRL, value);
}
@@ -1156,8 +1173,7 @@ static int eeepc_backlight_init(struct eeepc_laptop *eeepc)
static void eeepc_backlight_exit(struct eeepc_laptop *eeepc)
{
- if (eeepc->backlight_device)
- backlight_device_unregister(eeepc->backlight_device);
+ backlight_device_unregister(eeepc->backlight_device);
eeepc->backlight_device = NULL;
}
@@ -1216,7 +1232,7 @@ static void eeepc_input_exit(struct eeepc_laptop *eeepc)
static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event)
{
if (!eeepc->inputdev)
- return ;
+ return;
if (!sparse_keymap_report_event(eeepc->inputdev, event, 1, true))
pr_info("Unknown key %x pressed\n", event);
}
@@ -1224,6 +1240,7 @@ static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event)
static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
{
struct eeepc_laptop *eeepc = acpi_driver_data(device);
+ int old_brightness, new_brightness;
u16 count;
if (event > ACPI_MAX_SYS_NOTIFY)
@@ -1234,34 +1251,32 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
count);
/* Brightness events are special */
- if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) {
-
- /* Ignore them completely if the acpi video driver is used */
- if (eeepc->backlight_device != NULL) {
- int old_brightness, new_brightness;
-
- /* Update the backlight device. */
- old_brightness = eeepc_backlight_notify(eeepc);
-
- /* Convert event to keypress (obsolescent hack) */
- new_brightness = event - NOTIFY_BRN_MIN;
-
- if (new_brightness < old_brightness) {
- event = NOTIFY_BRN_MIN; /* brightness down */
- } else if (new_brightness > old_brightness) {
- event = NOTIFY_BRN_MAX; /* brightness up */
- } else {
- /*
- * no change in brightness - already at min/max,
- * event will be desired value (or else ignored)
- */
- }
- eeepc_input_notify(eeepc, event);
- }
- } else {
- /* Everything else is a bona-fide keypress event */
+ if (event < NOTIFY_BRN_MIN || event > NOTIFY_BRN_MAX) {
eeepc_input_notify(eeepc, event);
+ return;
+ }
+
+ /* Ignore them completely if the acpi video driver is used */
+ if (!eeepc->backlight_device)
+ return;
+
+ /* Update the backlight device. */
+ old_brightness = eeepc_backlight_notify(eeepc);
+
+ /* Convert event to keypress (obsolescent hack) */
+ new_brightness = event - NOTIFY_BRN_MIN;
+
+ if (new_brightness < old_brightness) {
+ event = NOTIFY_BRN_MIN; /* brightness down */
+ } else if (new_brightness > old_brightness) {
+ event = NOTIFY_BRN_MAX; /* brightness up */
+ } else {
+ /*
+ * no change in brightness - already at min/max,
+ * event will be desired value (or else ignored)
+ */
}
+ eeepc_input_notify(eeepc, event);
}
static void eeepc_dmi_check(struct eeepc_laptop *eeepc)
@@ -1293,8 +1308,8 @@ static void eeepc_dmi_check(struct eeepc_laptop *eeepc)
*/
if (strcmp(model, "701") == 0 || strcmp(model, "702") == 0) {
eeepc->cpufv_disabled = true;
- pr_info("model %s does not officially support setting cpu "
- "speed\n", model);
+ pr_info("model %s does not officially support setting cpu speed\n",
+ model);
pr_info("cpufv disabled to avoid instability\n");
}
@@ -1320,8 +1335,8 @@ static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name)
Check if cm_getv[cm] works and, if yes, assume cm should be set. */
if (!(eeepc->cm_supported & (1 << cm))
&& !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) {
- pr_info("%s (%x) not reported by BIOS,"
- " enabling anyway\n", name, 1 << cm);
+ pr_info("%s (%x) not reported by BIOS, enabling anyway\n",
+ name, 1 << cm);
eeepc->cm_supported |= 1 << cm;
}
}