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572cf7d7b0
The wl1835mod.pdf data sheet says this pretty clearly for WL_IRQ line:
"WLAN SDIO out-of-band interrupt line. Set to rising edge (active high)
by default."
And it seems this interrupt can be optionally configured to use falling
edge too since commit bd763482c8 ("wl18xx: wlan_irq: support platform
dependent interrupt types").
On omap4, if the wlcore interrupt is configured as level instead of edge,
L4PER will stop doing hardware based idling after ifconfig wlan0 down is
done and the WL_EN line is pulled down.
The symptoms show up with L4PER status registers no longer showing the
IDLEST bits as 2 but as 0 for all the active GPIO banks and for
L4PER_CLKCTRL. Also the l4per_pwrdm RET count stops increasing in
the /sys/kernel/debug/pm_debug/count.
While there is also probably a GPIO related issue that needs to be
still fixed, this change gets us to the point where we can have L4PER
idling.
I'm guessing wlcore was at some point configured to use level interrupts
because of edge handling issues in gpio-omap. However, with the recent
fixes to gpio-omap the edge interrupts seem to be working just fine.
Let's change it for all omap boards with wlcore interrupt set as level.
Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Eyal Reizer <eyalr@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com updated comments a bit for gpio issue]
Signed-off-by: Tony Lindgren <tony@atomide.com>
196 lines
3.8 KiB
Plaintext
196 lines
3.8 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Common support for omap3 EVM boards
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*/
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#include <dt-bindings/input/input.h>
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#include "omap-gpmc-smsc911x.dtsi"
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/ {
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cpus {
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cpu@0 {
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cpu0-supply = <&vcc>;
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};
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};
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/* HS USB Port 2 Power */
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hsusb2_power: hsusb2_power_reg {
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compatible = "regulator-fixed";
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regulator-name = "hsusb2_vbus";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio1 22 GPIO_ACTIVE_HIGH>; /* gpio_22 */
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startup-delay-us = <70000>;
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enable-active-high;
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};
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/* HS USB Host PHY on PORT 2 */
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hsusb2_phy: hsusb2_phy {
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compatible = "usb-nop-xceiv";
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reset-gpios = <&gpio1 21 GPIO_ACTIVE_LOW>; /* gpio_21 */
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vcc-supply = <&hsusb2_power>;
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#phy-cells = <0>;
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};
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leds {
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compatible = "gpio-leds";
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ledb {
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label = "omap3evm::ledb";
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gpios = <&twl_gpio 19 GPIO_ACTIVE_HIGH>; /* LEDB */
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linux,default-trigger = "default-on";
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};
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};
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wl12xx_vmmc: wl12xx_vmmc {
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compatible = "regulator-fixed";
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regulator-name = "vwl1271";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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gpio = <&gpio5 22 GPIO_ACTIVE_HIGH>; /* gpio150 */
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startup-delay-us = <70000>;
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enable-active-high;
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vin-supply = <&vmmc2>;
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};
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};
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&i2c1 {
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clock-frequency = <2600000>;
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twl: twl@48 {
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reg = <0x48>;
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interrupts = <7>; /* SYS_NIRQ cascaded to intc */
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interrupt-parent = <&intc>;
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};
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};
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#include "twl4030.dtsi"
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#include "twl4030_omap3.dtsi"
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#include "omap3-panel-sharp-ls037v7dw01.dtsi"
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&backlight0 {
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gpios = <&twl_gpio 18 GPIO_ACTIVE_LOW>;
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};
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&twl {
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twl_power: power {
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compatible = "ti,twl4030-power-omap3-evm", "ti,twl4030-power-idle";
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ti,use_poweroff;
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};
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};
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&i2c2 {
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clock-frequency = <400000>;
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};
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&i2c3 {
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clock-frequency = <400000>;
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/*
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* TVP5146 Video decoder-in for analog input support.
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*/
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tvp5146@5c {
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compatible = "ti,tvp5146m2";
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reg = <0x5c>;
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};
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};
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&lcd_3v3 {
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gpio = <&gpio5 25 GPIO_ACTIVE_LOW>; /* gpio153 */
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};
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&lcd0 {
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enable-gpios = <&gpio5 24 GPIO_ACTIVE_HIGH>; /* gpio152, lcd INI */
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reset-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>; /* gpio155, lcd RESB */
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mode-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH /* gpio154, lcd MO */
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&gpio1 2 GPIO_ACTIVE_HIGH /* gpio2, lcd LR */
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&gpio1 3 GPIO_ACTIVE_HIGH>; /* gpio3, lcd UD */
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};
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&mcspi1 {
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tsc2046@0 {
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interrupt-parent = <&gpio6>;
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interrupts = <15 0>; /* gpio175 */
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pendown-gpio = <&gpio6 15 GPIO_ACTIVE_HIGH>;
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};
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};
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&mmc1 {
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interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
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vmmc-supply = <&vmmc1>;
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vqmmc-supply = <&vsim>;
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bus-width = <8>;
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};
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&mmc2 {
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vmmc-supply = <&wl12xx_vmmc>;
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non-removable;
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bus-width = <4>;
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cap-power-off-card;
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#address-cells = <1>;
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#size-cells = <0>;
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wlcore: wlcore@2 {
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compatible = "ti,wl1271";
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reg = <2>;
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interrupt-parent = <&gpio5>;
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interrupts = <21 IRQ_TYPE_EDGE_RISING>; /* gpio 149 */
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ref-clock-frequency = <38400000>;
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};
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};
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&twl_gpio {
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ti,use-leds;
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};
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&twl_keypad {
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linux,keymap = <
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MATRIX_KEY(2, 2, KEY_1)
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MATRIX_KEY(1, 1, KEY_2)
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MATRIX_KEY(0, 0, KEY_3)
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MATRIX_KEY(3, 2, KEY_4)
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MATRIX_KEY(2, 1, KEY_5)
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MATRIX_KEY(1, 0, KEY_6)
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MATRIX_KEY(1, 3, KEY_7)
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MATRIX_KEY(3, 1, KEY_8)
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MATRIX_KEY(2, 0, KEY_9)
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MATRIX_KEY(2, 3, KEY_KPASTERISK)
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MATRIX_KEY(0, 2, KEY_0)
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MATRIX_KEY(3, 0, KEY_KPDOT)
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/* s4 not wired */
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MATRIX_KEY(1, 2, KEY_BACKSPACE)
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MATRIX_KEY(0, 1, KEY_ENTER)
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>;
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};
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&usbhshost {
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port2-mode = "ehci-phy";
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};
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&usbhsehci {
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phys = <0 &hsusb2_phy>;
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};
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&usb_otg_hs {
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interface-type = <0>;
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usb-phy = <&usb2_phy>;
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phys = <&usb2_phy>;
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phy-names = "usb2-phy";
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mode = <3>;
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power = <50>;
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};
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&gpmc {
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ethernet@gpmc {
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interrupt-parent = <&gpio6>;
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interrupts = <16 8>;
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reg = <5 0 0xff>;
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};
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};
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&vaux2 {
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regulator-name = "usb_1v8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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};
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