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arm64: a37xx: pci: Make PCIe Reset GPIO DT compatible with Linux kernel DT

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Change active-high to active-low and change DT property name from
reset-gpio to reset-gpios. This format of gpio reset is used by
pci-aardvark driver in Linux kernel.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Konstantin Porotchkin <kostap@marvell.com>
Tested-by: Andre Heider <a.heider@gmail.com>
This commit is contained in:
Pali Rohár
2020-08-19 15:57:06 +02:00
committed by Stefan Roese
parent 545591132a
commit 563b85bd88
4 changed files with 6 additions and 6 deletions
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2
arch/arm/dts/armada-3720-db.dts
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@@ -159,6 +159,6 @@
&pcie0 { &pcie0 {
pinctrl-names = "default"; pinctrl-names = "default";
pinctrl-0 = <&pcie_pins>; pinctrl-0 = <&pcie_pins>;
reset-gpio = <&gpiosb 3 GPIO_ACTIVE_HIGH>; reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
status = "okay"; status = "okay";
}; };

2
arch/arm/dts/armada-3720-espressobin.dts
View File

@@ -145,6 +145,6 @@
&pcie0 { &pcie0 {
pinctrl-names = "default"; pinctrl-names = "default";
pinctrl-0 = <&pcie_pins>; pinctrl-0 = <&pcie_pins>;
reset-gpio = <&gpiosb 3 GPIO_ACTIVE_HIGH>; reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
status = "okay"; status = "okay";
}; };

2
arch/arm/dts/armada-3720-turris-mox.dts
View File

@@ -172,6 +172,6 @@
&pcie0 { &pcie0 {
pinctrl-names = "default"; pinctrl-names = "default";
pinctrl-0 = <&pcie_pins>; pinctrl-0 = <&pcie_pins>;
reset-gpio = <&gpiosb 3 GPIO_ACTIVE_HIGH>; reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
status = "disabled"; status = "disabled";
}; };

6
drivers/pci/pci-aardvark.c
View File

@@ -616,7 +616,7 @@ static int pcie_advk_probe(struct udevice *dev)
#if CONFIG_IS_ENABLED(DM_GPIO) #if CONFIG_IS_ENABLED(DM_GPIO)
struct gpio_desc reset_gpio; struct gpio_desc reset_gpio;
gpio_request_by_name(dev, "reset-gpio", 0, &reset_gpio, gpio_request_by_name(dev, "reset-gpios", 0, &reset_gpio,
GPIOD_IS_OUT); GPIOD_IS_OUT);
/* /*
* Issue reset to add-in card through the dedicated GPIO. * Issue reset to add-in card through the dedicated GPIO.
@@ -633,9 +633,9 @@ static int pcie_advk_probe(struct udevice *dev)
*/ */
if (dm_gpio_is_valid(&reset_gpio)) { if (dm_gpio_is_valid(&reset_gpio)) {
dev_dbg(pcie->dev, "Toggle PCIE Reset GPIO ...\n"); dev_dbg(pcie->dev, "Toggle PCIE Reset GPIO ...\n");
dm_gpio_set_value(&reset_gpio, 0);
mdelay(200);
dm_gpio_set_value(&reset_gpio, 1); dm_gpio_set_value(&reset_gpio, 1);
mdelay(200);
dm_gpio_set_value(&reset_gpio, 0);
} }
#else #else
dev_dbg(pcie->dev, "PCIE Reset on GPIO support is missing\n"); dev_dbg(pcie->dev, "PCIE Reset on GPIO support is missing\n");