From ee8598ae527ea0408e440c073e0945fc37488fe6 Mon Sep 17 00:00:00 2001
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Date: Mon, 16 Dec 2019 17:37:10 +0100
Subject: [PATCH 1/5] gpio: mockup: fix coding style
I have missed two indentation issues in commit 64e7112ee307 ("gpio:
mockup: add set_config to support pull up/down"). This commit fixes them.
Fixes: 64e7112ee307 ("gpio: mockup: add set_config to support pull up/down")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
drivers/gpio/gpio-mockup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
index c4fdc192ea4e..94b8d3ae27bc 100644
--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c
@@ -156,7 +156,7 @@ static int gpio_mockup_apply_pull(struct gpio_mockup_chip *chip,
mutex_lock(&chip->lock);
if (test_bit(FLAG_REQUESTED, &desc->flags) &&
- !test_bit(FLAG_IS_OUT, &desc->flags)) {
+ !test_bit(FLAG_IS_OUT, &desc->flags)) {
curr = __gpio_mockup_get(chip, offset);
if (curr == value)
goto out;
@@ -165,7 +165,7 @@ static int gpio_mockup_apply_pull(struct gpio_mockup_chip *chip,
irq_type = irq_get_trigger_type(irq);
if ((value == 1 && (irq_type & IRQ_TYPE_EDGE_RISING)) ||
- (value == 0 && (irq_type & IRQ_TYPE_EDGE_FALLING)))
+ (value == 0 && (irq_type & IRQ_TYPE_EDGE_FALLING)))
irq_sim_fire(sim, offset);
}
From c5706c7defc79de68a115b5536376298a8fef111 Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <digetx@gmail.com>
Date: Mon, 6 Jan 2020 04:51:54 +0300
Subject: [PATCH 2/5] gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Driver fails to compile in a minimized kernel's configuration because of
the missing dependency on GPIOLIB_IRQCHIP.
error: ‘struct gpio_chip’ has no member named ‘irq’
44 | virq = irq_find_mapping(gpio->gpio_chip.irq.domain, offset);
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106015154.12040-1-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 6ab25fe1c423..2ed599236a1c 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1148,6 +1148,7 @@ config GPIO_MADERA
config GPIO_MAX77620
tristate "GPIO support for PMIC MAX77620 and MAX20024"
depends on MFD_MAX77620
+ select GPIOLIB_IRQCHIP
help
GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
From 36f2e7207f21a83ca0054116191f119ac64583ab Mon Sep 17 00:00:00 2001
From: Swapna Manupati <swapna.manupati@xilinx.com>
Date: Thu, 26 Dec 2019 17:42:11 +0530
Subject: [PATCH 3/5] gpio: zynq: Fix for bug in zynq_gpio_restore_context API
This patch writes the inverse value of Interrupt Mask Status
register into the Interrupt Enable register in
zynq_gpio_restore_context API to fix the bug.
Fixes: e11de4de28c0 ("gpio: zynq: Add support for suspend resume")
Signed-off-by: Swapna Manupati <swapna.manupati@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Link: https://lore.kernel.org/r/1577362338-28744-2-git-send-email-srinivas.neeli@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/gpio-zynq.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 4c3f6370eab4..05ba16fffdad 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -684,6 +684,8 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio)
unsigned int bank_num;
for (bank_num = 0; bank_num < gpio->p_data->max_bank; bank_num++) {
+ writel_relaxed(ZYNQ_GPIO_IXR_DISABLE_ALL, gpio->base_addr +
+ ZYNQ_GPIO_INTDIS_OFFSET(bank_num));
writel_relaxed(gpio->context.datalsw[bank_num],
gpio->base_addr +
ZYNQ_GPIO_DATA_LSW_OFFSET(bank_num));
@@ -693,9 +695,6 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio)
writel_relaxed(gpio->context.dirm[bank_num],
gpio->base_addr +
ZYNQ_GPIO_DIRM_OFFSET(bank_num));
- writel_relaxed(gpio->context.int_en[bank_num],
- gpio->base_addr +
- ZYNQ_GPIO_INTEN_OFFSET(bank_num));
writel_relaxed(gpio->context.int_type[bank_num],
gpio->base_addr +
ZYNQ_GPIO_INTTYPE_OFFSET(bank_num));
@@ -705,6 +704,9 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio)
writel_relaxed(gpio->context.int_any[bank_num],
gpio->base_addr +
ZYNQ_GPIO_INTANY_OFFSET(bank_num));
+ writel_relaxed(~(gpio->context.int_en[bank_num]),
+ gpio->base_addr +
+ ZYNQ_GPIO_INTEN_OFFSET(bank_num));
}
}
From 1ad1b54099c231aed8f6f257065c1b322583f264 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 5 Jan 2020 17:03:56 +0100
Subject: [PATCH 4/5] gpiolib: acpi: Turn dmi_system_id table into a generic
quirk table
Turn the existing run_edge_events_on_boot_blacklist dmi_system_id table
into a generic quirk table, storing the quirks in the driver_data ptr.
This is a preparation patch for adding other types of (DMI based) quirks.
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200105160357.97154-2-hdegoede@redhat.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/gpiolib-acpi.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index d30e57dc755c..2b47d906d536 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -21,6 +21,8 @@
#include "gpiolib.h"
#include "gpiolib-acpi.h"
+#define QUIRK_NO_EDGE_EVENTS_ON_BOOT 0x01l
+
static int run_edge_events_on_boot = -1;
module_param(run_edge_events_on_boot, int, 0444);
MODULE_PARM_DESC(run_edge_events_on_boot,
@@ -1309,7 +1311,7 @@ static int acpi_gpio_handle_deferred_request_irqs(void)
/* We must use _sync so that this runs after the first deferred_probe run */
late_initcall_sync(acpi_gpio_handle_deferred_request_irqs);
-static const struct dmi_system_id run_edge_events_on_boot_blacklist[] = {
+static const struct dmi_system_id gpiolib_acpi_quirks[] = {
{
/*
* The Minix Neo Z83-4 has a micro-USB-B id-pin handler for
@@ -1319,7 +1321,8 @@ static const struct dmi_system_id run_edge_events_on_boot_blacklist[] = {
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "MINIX"),
DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
- }
+ },
+ .driver_data = (void *)QUIRK_NO_EDGE_EVENTS_ON_BOOT,
},
{
/*
@@ -1331,15 +1334,23 @@ static const struct dmi_system_id run_edge_events_on_boot_blacklist[] = {
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Wortmann_AG"),
DMI_MATCH(DMI_PRODUCT_NAME, "TERRA_PAD_1061"),
- }
+ },
+ .driver_data = (void *)QUIRK_NO_EDGE_EVENTS_ON_BOOT,
},
{} /* Terminating entry */
};
static int acpi_gpio_setup_params(void)
{
+ const struct dmi_system_id *id;
+ long quirks = 0;
+
+ id = dmi_first_match(gpiolib_acpi_quirks);
+ if (id)
+ quirks = (long)id->driver_data;
+
if (run_edge_events_on_boot < 0) {
- if (dmi_check_system(run_edge_events_on_boot_blacklist))
+ if (quirks & QUIRK_NO_EDGE_EVENTS_ON_BOOT)
run_edge_events_on_boot = 0;
else
run_edge_events_on_boot = 1;
From aa23ca3d98f756d5b1e503fb140665fb24a41a38 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 5 Jan 2020 17:03:57 +0100
Subject: [PATCH 5/5] gpiolib: acpi: Add honor_wakeup module-option + quirk
mechanism
On some laptops enabling wakeup on the GPIO interrupts used for ACPI _AEI
event handling causes spurious wakeups.
This commit adds a new honor_wakeup option, defaulting to true (our current
behavior), which can be used to disable wakeup on troublesome hardware
to avoid these spurious wakeups.
This is a workaround for an architectural problem with s2idle under Linux
where we do not have any mechanism to immediately go back to sleep after
wakeup events, other then for embedded-controller events using the standard
ACPI EC interface, for details see:
https://lore.kernel.org/linux-acpi/61450f9b-cbc6-0c09-8b3a-aff6bf9a0b3c@redhat.com/
One series of laptops which is not able to suspend without this workaround
is the HP x2 10 Cherry Trail models, this commit adds a DMI based quirk
which makes sets honor_wakeup to false on these models.
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200105160357.97154-3-hdegoede@redhat.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/gpio/gpiolib-acpi.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 2b47d906d536..31fee5e918b7 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -22,12 +22,18 @@
#include "gpiolib-acpi.h"
#define QUIRK_NO_EDGE_EVENTS_ON_BOOT 0x01l
+#define QUIRK_NO_WAKEUP 0x02l
static int run_edge_events_on_boot = -1;
module_param(run_edge_events_on_boot, int, 0444);
MODULE_PARM_DESC(run_edge_events_on_boot,
"Run edge _AEI event-handlers at boot: 0=no, 1=yes, -1=auto");
+static int honor_wakeup = -1;
+module_param(honor_wakeup, int, 0444);
+MODULE_PARM_DESC(honor_wakeup,
+ "Honor the ACPI wake-capable flag: 0=no, 1=yes, -1=auto");
+
/**
* struct acpi_gpio_event - ACPI GPIO event handler data
*
@@ -283,7 +289,7 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares,
event->handle = evt_handle;
event->handler = handler;
event->irq = irq;
- event->irq_is_wake = agpio->wake_capable == ACPI_WAKE_CAPABLE;
+ event->irq_is_wake = honor_wakeup && agpio->wake_capable == ACPI_WAKE_CAPABLE;
event->pin = pin;
event->desc = desc;
@@ -1337,6 +1343,23 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] = {
},
.driver_data = (void *)QUIRK_NO_EDGE_EVENTS_ON_BOOT,
},
+ {
+ /*
+ * Various HP X2 10 Cherry Trail models use an external
+ * embedded-controller connected via I2C + an ACPI GPIO
+ * event handler. The embedded controller generates various
+ * spurious wakeup events when suspended. So disable wakeup
+ * for its handler (it uses the only ACPI GPIO event handler).
+ * This breaks wakeup when opening the lid, the user needs
+ * to press the power-button to wakeup the system. The
+ * alternative is suspend simply not working, which is worse.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP x2 Detachable 10-p0XX"),
+ },
+ .driver_data = (void *)QUIRK_NO_WAKEUP,
+ },
{} /* Terminating entry */
};
@@ -1356,6 +1379,13 @@ static int acpi_gpio_setup_params(void)
run_edge_events_on_boot = 1;
}
+ if (honor_wakeup < 0) {
+ if (quirks & QUIRK_NO_WAKEUP)
+ honor_wakeup = 0;
+ else
+ honor_wakeup = 1;
+ }
+
return 0;
}