* [PATCH v3 0/2] mmc: pwrseq: add support for Marvell SD8787 chip
@ 2017-01-21 5:50 Matt Ranostay
2017-01-21 5:50 ` [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options Matt Ranostay
2017-01-21 5:50 ` [PATCH v3 2/2] mmc: pwrseq: add support for Marvell SD8787 chip Matt Ranostay
0 siblings, 2 replies; 7+ messages in thread
From: Matt Ranostay @ 2017-01-21 5:50 UTC (permalink / raw)
To: linux-mmc, linux-kernel; +Cc: ulf.hansson, Matt Ranostay
Changes from v1:
* split devictree docs from pwrseq changes
* rebase devicetree documents due to filename change
* rebase pwrseq patchset
Changes from v2:
* update device tree bindings to powerdown-gpios and document
active state
Matt Ranostay (2):
devicetree: document new marvell-8xxx and pwrseq-sd8787 options
mmc: pwrseq: add support for Marvell SD8787 chip
.../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt | 14 +++
.../bindings/net/wireless/marvell-8xxx.txt | 7 +-
drivers/mmc/core/Kconfig | 10 ++
drivers/mmc/core/Makefile | 1 +
drivers/mmc/core/pwrseq_sd8787.c | 117 +++++++++++++++++++++
5 files changed, 148 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
create mode 100644 drivers/mmc/core/pwrseq_sd8787.c
--
2.10.2
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options
2017-01-21 5:50 [PATCH v3 0/2] mmc: pwrseq: add support for Marvell SD8787 chip Matt Ranostay
@ 2017-01-21 5:50 ` Matt Ranostay
2017-01-23 17:04 ` Rob Herring
2017-01-21 5:50 ` [PATCH v3 2/2] mmc: pwrseq: add support for Marvell SD8787 chip Matt Ranostay
1 sibling, 1 reply; 7+ messages in thread
From: Matt Ranostay @ 2017-01-21 5:50 UTC (permalink / raw)
To: linux-mmc, linux-kernel; +Cc: ulf.hansson, Matt Ranostay, devicetree
Cc: devicetree@vger.kernel.org
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
---
.../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt | 14 ++++++++++++++
.../devicetree/bindings/net/wireless/marvell-8xxx.txt | 7 ++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
new file mode 100644
index 000000000000..4bb56766982e
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
@@ -0,0 +1,14 @@
+* Marvell SD8787 power sequence provider
+
+Required properties:
+- compatible: must be "mmc-pwrseq-sd8787".
+- powerdown-gpio: contains a power down GPIO specifier with active state
+- reset-gpio: contains a reset GPIO specifier with active state
+
+Example:
+
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-sd8787";
+ powerdown-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
+ reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
+ }
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
index 980b16df74c3..0854451ff91d 100644
--- a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
+++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
@@ -1,4 +1,4 @@
-Marvell 8897/8997 (sd8897/sd8997/pcie8997) SDIO/PCIE devices
+Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
------
This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
@@ -8,6 +8,7 @@ connects the device to the system.
Required properties:
- compatible : should be one of the following:
+ * "marvell,sd8787"
* "marvell,sd8897"
* "marvell,sd8997"
* "pci11ab,2b42"
@@ -34,6 +35,9 @@ Optional properties:
so that the wifi chip can wakeup host platform under certain condition.
during system resume, the irq will be disabled to make sure
unnecessary interrupt is not received.
+ - vmmc-supply: a phandle of a regulator, supplying VCC to the card
+ - mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
+ for documentation of MMC power sequence bindings.
Example:
@@ -46,6 +50,7 @@ so that firmware can wakeup host using this device side pin.
&mmc3 {
status = "okay";
vmmc-supply = <&wlan_en_reg>;
+ mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
cap-power-off-card;
keep-power-in-suspend;
--
2.10.2
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v3 2/2] mmc: pwrseq: add support for Marvell SD8787 chip
2017-01-21 5:50 [PATCH v3 0/2] mmc: pwrseq: add support for Marvell SD8787 chip Matt Ranostay
2017-01-21 5:50 ` [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options Matt Ranostay
@ 2017-01-21 5:50 ` Matt Ranostay
1 sibling, 0 replies; 7+ messages in thread
From: Matt Ranostay @ 2017-01-21 5:50 UTC (permalink / raw)
To: linux-mmc, linux-kernel; +Cc: ulf.hansson, Matt Ranostay, Tony Lindgren
Allow power sequencing for the Marvell SD8787 Wifi/BT chip.
This can be abstracted to other chipsets if needed in the future.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
---
drivers/mmc/core/Kconfig | 10 ++++
drivers/mmc/core/Makefile | 1 +
drivers/mmc/core/pwrseq_sd8787.c | 117 +++++++++++++++++++++++++++++++++++++++
3 files changed, 128 insertions(+)
create mode 100644 drivers/mmc/core/pwrseq_sd8787.c
diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig
index cdfa8520a4b1..fc1ecdaaa9ca 100644
--- a/drivers/mmc/core/Kconfig
+++ b/drivers/mmc/core/Kconfig
@@ -12,6 +12,16 @@ config PWRSEQ_EMMC
This driver can also be built as a module. If so, the module
will be called pwrseq_emmc.
+config PWRSEQ_SD8787
+ tristate "HW reset support for SD8787 BT + Wifi module"
+ depends on OF && (MWIFIEX || BT_MRVL_SDIO)
+ help
+ This selects hardware reset support for the SD8787 BT + Wifi
+ module. By default this option is set to n.
+
+ This driver can also be built as a module. If so, the module
+ will be called pwrseq_sd8787.
+
config PWRSEQ_SIMPLE
tristate "Simple HW reset support for MMC"
default y
diff --git a/drivers/mmc/core/Makefile b/drivers/mmc/core/Makefile
index b2a257dc644f..0f81464fa824 100644
--- a/drivers/mmc/core/Makefile
+++ b/drivers/mmc/core/Makefile
@@ -10,6 +10,7 @@ mmc_core-y := core.o bus.o host.o \
quirks.o slot-gpio.o
mmc_core-$(CONFIG_OF) += pwrseq.o
obj-$(CONFIG_PWRSEQ_SIMPLE) += pwrseq_simple.o
+obj-$(CONFIG_PWRSEQ_SD8787) += pwrseq_sd8787.o
obj-$(CONFIG_PWRSEQ_EMMC) += pwrseq_emmc.o
mmc_core-$(CONFIG_DEBUG_FS) += debugfs.o
obj-$(CONFIG_MMC_BLOCK) += mmc_block.o
diff --git a/drivers/mmc/core/pwrseq_sd8787.c b/drivers/mmc/core/pwrseq_sd8787.c
new file mode 100644
index 000000000000..1a21e14458d3
--- /dev/null
+++ b/drivers/mmc/core/pwrseq_sd8787.c
@@ -0,0 +1,117 @@
+/*
+ * pwrseq_sd8787.c - power sequence support for Marvell SD8787 BT + Wifi chip
+ *
+ * Copyright (C) 2016 Matt Ranostay <matt@ranostay.consulting>
+ *
+ * Based on the original work pwrseq_simple.c
+ * Copyright (C) 2014 Linaro Ltd
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+
+#include <linux/mmc/host.h>
+
+#include "pwrseq.h"
+
+struct mmc_pwrseq_sd8787 {
+ struct mmc_pwrseq pwrseq;
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *pwrdn_gpio;
+};
+
+#define to_pwrseq_sd8787(p) container_of(p, struct mmc_pwrseq_sd8787, pwrseq)
+
+static void mmc_pwrseq_sd8787_pre_power_on(struct mmc_host *host)
+{
+ struct mmc_pwrseq_sd8787 *pwrseq = to_pwrseq_sd8787(host->pwrseq);
+
+ gpiod_set_value_cansleep(pwrseq->reset_gpio, 1);
+
+ msleep(300);
+ gpiod_set_value_cansleep(pwrseq->pwrdn_gpio, 1);
+}
+
+static void mmc_pwrseq_sd8787_power_off(struct mmc_host *host)
+{
+ struct mmc_pwrseq_sd8787 *pwrseq = to_pwrseq_sd8787(host->pwrseq);
+
+ gpiod_set_value_cansleep(pwrseq->pwrdn_gpio, 0);
+ gpiod_set_value_cansleep(pwrseq->reset_gpio, 0);
+}
+
+static const struct mmc_pwrseq_ops mmc_pwrseq_sd8787_ops = {
+ .pre_power_on = mmc_pwrseq_sd8787_pre_power_on,
+ .power_off = mmc_pwrseq_sd8787_power_off,
+};
+
+static const struct of_device_id mmc_pwrseq_sd8787_of_match[] = {
+ { .compatible = "mmc-pwrseq-sd8787",},
+ {/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, mmc_pwrseq_sd8787_of_match);
+
+static int mmc_pwrseq_sd8787_probe(struct platform_device *pdev)
+{
+ struct mmc_pwrseq_sd8787 *pwrseq;
+ struct device *dev = &pdev->dev;
+
+ pwrseq = devm_kzalloc(dev, sizeof(*pwrseq), GFP_KERNEL);
+ if (!pwrseq)
+ return -ENOMEM;
+
+ pwrseq->pwrdn_gpio = devm_gpiod_get(dev, "powerdown", GPIOD_OUT_LOW);
+ if (IS_ERR(pwrseq->pwrdn_gpio))
+ return PTR_ERR(pwrseq->pwrdn_gpio);
+
+ pwrseq->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(pwrseq->reset_gpio))
+ return PTR_ERR(pwrseq->reset_gpio);
+
+ pwrseq->pwrseq.dev = dev;
+ pwrseq->pwrseq.ops = &mmc_pwrseq_sd8787_ops;
+ pwrseq->pwrseq.owner = THIS_MODULE;
+ platform_set_drvdata(pdev, pwrseq);
+
+ return mmc_pwrseq_register(&pwrseq->pwrseq);
+}
+
+static int mmc_pwrseq_sd8787_remove(struct platform_device *pdev)
+{
+ struct mmc_pwrseq_sd8787 *pwrseq = platform_get_drvdata(pdev);
+
+ mmc_pwrseq_unregister(&pwrseq->pwrseq);
+
+ return 0;
+}
+
+static struct platform_driver mmc_pwrseq_sd8787_driver = {
+ .probe = mmc_pwrseq_sd8787_probe,
+ .remove = mmc_pwrseq_sd8787_remove,
+ .driver = {
+ .name = "pwrseq_sd8787",
+ .of_match_table = mmc_pwrseq_sd8787_of_match,
+ },
+};
+
+module_platform_driver(mmc_pwrseq_sd8787_driver);
+MODULE_LICENSE("GPL v2");
--
2.10.2
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options
2017-01-21 5:50 ` [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options Matt Ranostay
@ 2017-01-23 17:04 ` Rob Herring
2017-01-23 21:00 ` Matt Ranostay
0 siblings, 1 reply; 7+ messages in thread
From: Rob Herring @ 2017-01-23 17:04 UTC (permalink / raw)
To: Matt Ranostay; +Cc: linux-mmc, linux-kernel, ulf.hansson, devicetree
On Fri, Jan 20, 2017 at 09:50:38PM -0800, Matt Ranostay wrote:
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
> ---
> .../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt | 14 ++++++++++++++
> .../devicetree/bindings/net/wireless/marvell-8xxx.txt | 7 ++++++-
> 2 files changed, 20 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
>
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> new file mode 100644
> index 000000000000..4bb56766982e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> @@ -0,0 +1,14 @@
> +* Marvell SD8787 power sequence provider
> +
> +Required properties:
> +- compatible: must be "mmc-pwrseq-sd8787".
> +- powerdown-gpio: contains a power down GPIO specifier with active state
> +- reset-gpio: contains a reset GPIO specifier with active state
My comments on the previous v3 still apply.
> +
> +Example:
> +
> + wifi_pwrseq: wifi_pwrseq {
> + compatible = "mmc-pwrseq-sd8787";
> + powerdown-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
> + reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
> + }
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options
2017-01-23 17:04 ` Rob Herring
@ 2017-01-23 21:00 ` Matt Ranostay
0 siblings, 0 replies; 7+ messages in thread
From: Matt Ranostay @ 2017-01-23 21:00 UTC (permalink / raw)
To: Rob Herring; +Cc: linux-mmc, Linux Kernel, Ulf Hansson, devicetree
On Mon, Jan 23, 2017 at 9:04 AM, Rob Herring <robh@kernel.org> wrote:
> On Fri, Jan 20, 2017 at 09:50:38PM -0800, Matt Ranostay wrote:
>> Cc: devicetree@vger.kernel.org
>> Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
>> ---
>> .../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt | 14 ++++++++++++++
>> .../devicetree/bindings/net/wireless/marvell-8xxx.txt | 7 ++++++-
>> 2 files changed, 20 insertions(+), 1 deletion(-)
>> create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
>> new file mode 100644
>> index 000000000000..4bb56766982e
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
>> @@ -0,0 +1,14 @@
>> +* Marvell SD8787 power sequence provider
>> +
>> +Required properties:
>> +- compatible: must be "mmc-pwrseq-sd8787".
>> +- powerdown-gpio: contains a power down GPIO specifier with active state
>> +- reset-gpio: contains a reset GPIO specifier with active state
>
> My comments on the previous v3 still apply.
Ah yikes.. forgot to increment the patchset. And noticed the gpio
isn't gpios... will fixed in "v4"
Thanks,
Matt
>
>> +
>> +Example:
>> +
>> + wifi_pwrseq: wifi_pwrseq {
>> + compatible = "mmc-pwrseq-sd8787";
>> + powerdown-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
>> + reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
>> + }
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options
2017-01-13 5:29 ` [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options Matt Ranostay
@ 2017-01-18 22:02 ` Rob Herring
0 siblings, 0 replies; 7+ messages in thread
From: Rob Herring @ 2017-01-18 22:02 UTC (permalink / raw)
To: Matt Ranostay; +Cc: linux-wireless, linux-kernel, linux-mmc, devicetree, tony
On Thu, Jan 12, 2017 at 09:29:36PM -0800, Matt Ranostay wrote:
Changelog?
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
> ---
> .../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt | 14 ++++++++++++++
> .../devicetree/bindings/net/wireless/marvell-8xxx.txt | 7 ++++++-
> 2 files changed, 20 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
>
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> new file mode 100644
> index 000000000000..1b658351629b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> @@ -0,0 +1,14 @@
> +* Marvell SD8787 power sequence provider
> +
> +Required properties:
> +- compatible: must be "mmc-pwrseq-sd8787".
> +- pwndn-gpio: contains a power down GPIO specifier.
powerdown-gpios
> +- reset-gpio: contains a reset GPIO specifier.
reset-gpios
And state the active state for both.
> +
> +Example:
> +
> + wifi_pwrseq: wifi_pwrseq {
> + compatible = "mmc-pwrseq-sd8787";
> + pwrdn-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
> + reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
> + }
> diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
> index 980b16df74c3..0854451ff91d 100644
> --- a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
> +++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
> @@ -1,4 +1,4 @@
> -Marvell 8897/8997 (sd8897/sd8997/pcie8997) SDIO/PCIE devices
> +Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
> ------
>
> This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
> @@ -8,6 +8,7 @@ connects the device to the system.
> Required properties:
>
> - compatible : should be one of the following:
> + * "marvell,sd8787"
> * "marvell,sd8897"
> * "marvell,sd8997"
> * "pci11ab,2b42"
> @@ -34,6 +35,9 @@ Optional properties:
> so that the wifi chip can wakeup host platform under certain condition.
> during system resume, the irq will be disabled to make sure
> unnecessary interrupt is not received.
> + - vmmc-supply: a phandle of a regulator, supplying VCC to the card
> + - mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
> + for documentation of MMC power sequence bindings.
>
> Example:
>
> @@ -46,6 +50,7 @@ so that firmware can wakeup host using this device side pin.
> &mmc3 {
> status = "okay";
> vmmc-supply = <&wlan_en_reg>;
> + mmc-pwrseq = <&wifi_pwrseq>;
> bus-width = <4>;
> cap-power-off-card;
> keep-power-in-suspend;
> --
> 2.10.2
>
> --
> To unsubscribe from this list: send the line "unsubscribe devicetree" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options
2017-01-13 5:29 [PATCH v3 0/2] " Matt Ranostay
@ 2017-01-13 5:29 ` Matt Ranostay
2017-01-18 22:02 ` Rob Herring
0 siblings, 1 reply; 7+ messages in thread
From: Matt Ranostay @ 2017-01-13 5:29 UTC (permalink / raw)
To: linux-wireless, linux-kernel, linux-mmc, devicetree; +Cc: tony, Matt Ranostay
Cc: devicetree@vger.kernel.org
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
---
.../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt | 14 ++++++++++++++
.../devicetree/bindings/net/wireless/marvell-8xxx.txt | 7 ++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
new file mode 100644
index 000000000000..1b658351629b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
@@ -0,0 +1,14 @@
+* Marvell SD8787 power sequence provider
+
+Required properties:
+- compatible: must be "mmc-pwrseq-sd8787".
+- pwndn-gpio: contains a power down GPIO specifier.
+- reset-gpio: contains a reset GPIO specifier.
+
+Example:
+
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-sd8787";
+ pwrdn-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
+ reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
+ }
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
index 980b16df74c3..0854451ff91d 100644
--- a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
+++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
@@ -1,4 +1,4 @@
-Marvell 8897/8997 (sd8897/sd8997/pcie8997) SDIO/PCIE devices
+Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
------
This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
@@ -8,6 +8,7 @@ connects the device to the system.
Required properties:
- compatible : should be one of the following:
+ * "marvell,sd8787"
* "marvell,sd8897"
* "marvell,sd8997"
* "pci11ab,2b42"
@@ -34,6 +35,9 @@ Optional properties:
so that the wifi chip can wakeup host platform under certain condition.
during system resume, the irq will be disabled to make sure
unnecessary interrupt is not received.
+ - vmmc-supply: a phandle of a regulator, supplying VCC to the card
+ - mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
+ for documentation of MMC power sequence bindings.
Example:
@@ -46,6 +50,7 @@ so that firmware can wakeup host using this device side pin.
&mmc3 {
status = "okay";
vmmc-supply = <&wlan_en_reg>;
+ mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
cap-power-off-card;
keep-power-in-suspend;
--
2.10.2
^ permalink raw reply related [flat|nested] 7+ messages in thread
end of thread, other threads:[~2017-01-23 21:00 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2017-01-21 5:50 [PATCH v3 0/2] mmc: pwrseq: add support for Marvell SD8787 chip Matt Ranostay
2017-01-21 5:50 ` [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options Matt Ranostay
2017-01-23 17:04 ` Rob Herring
2017-01-23 21:00 ` Matt Ranostay
2017-01-21 5:50 ` [PATCH v3 2/2] mmc: pwrseq: add support for Marvell SD8787 chip Matt Ranostay
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2017-01-13 5:29 [PATCH v3 0/2] " Matt Ranostay
2017-01-13 5:29 ` [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options Matt Ranostay
2017-01-18 22:02 ` Rob Herring
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