2fe4bff351
Currently the following errors are seen:
[ 14.015056] mc13xxx 0-0008: Failed to read IRQ status: -6
[ 27.321093] mc13xxx 0-0008: Failed to read IRQ status: -6
[ 27.411681] mc13xxx 0-0008: Failed to read IRQ status: -6
[ 27.456281] mc13xxx 0-0008: Failed to read IRQ status: -6
[ 30.527106] mc13xxx 0-0008: Failed to read IRQ status: -6
[ 36.596900] mc13xxx 0-0008: Failed to read IRQ status: -6
Also when reading the interrupts via 'cat /proc/interrupts' the
PMIC GPIO interrupt counter does not stop increasing.
The reason for the storm of interrupts is that the PUS field of
register IOMUXC_SW_PAD_CTL_PAD_CSI0_DAT5 is currently configured as:
10 : 100k pullup
and the PMIC interrupt is being registered as IRQ_TYPE_LEVEL_HIGH type,
which is the correct type as per the MC34708 datasheet.
Use the default power on value for the IOMUX, which sets PUS field as:
00: 360k pull down
This prevents the spurious PMIC interrupts from happening.
Commit e1ffceb078c6 ("ARM: imx53: qsrb: fix PMIC interrupt level")
correctly described the irq type as IRQ_TYPE_LEVEL_HIGH, but
missed to update the IOMUX of the PMIC GPIO as pull down.
Fixes: e1ffceb078c6 ("ARM: imx53: qsrb: fix PMIC interrupt level")
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
157 lines
3.3 KiB
Plaintext
157 lines
3.3 KiB
Plaintext
/*
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* Copyright 2011 Freescale Semiconductor, Inc.
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* Copyright 2011 Linaro Ltd.
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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/dts-v1/;
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#include "imx53-qsb-common.dtsi"
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/ {
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model = "Freescale i.MX53 Quick Start-R Board";
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compatible = "fsl,imx53-qsrb", "fsl,imx53";
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};
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&iomuxc {
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imx53-qsrb {
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pinctrl_pmic: pmicgrp {
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fsl,pins = <
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MX53_PAD_CSI0_DAT5__GPIO5_23 0x1c4 /* IRQ */
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>;
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};
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};
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};
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&i2c1 {
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pmic: mc34708@8 {
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compatible = "fsl,mc34708";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_pmic>;
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reg = <0x08>;
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interrupt-parent = <&gpio5>;
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interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
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regulators {
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sw1_reg: sw1a {
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regulator-name = "SW1";
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regulator-min-microvolt = <650000>;
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regulator-max-microvolt = <1437500>;
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regulator-boot-on;
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regulator-always-on;
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};
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sw1b_reg: sw1b {
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regulator-name = "SW1B";
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regulator-min-microvolt = <650000>;
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regulator-max-microvolt = <1437500>;
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regulator-boot-on;
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regulator-always-on;
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};
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sw2_reg: sw2 {
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regulator-name = "SW2";
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regulator-min-microvolt = <650000>;
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regulator-max-microvolt = <1437500>;
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regulator-boot-on;
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regulator-always-on;
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};
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sw3_reg: sw3 {
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regulator-name = "SW3";
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regulator-min-microvolt = <650000>;
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regulator-max-microvolt = <1425000>;
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regulator-boot-on;
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};
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sw4a_reg: sw4a {
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regulator-name = "SW4A";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-always-on;
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};
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sw4b_reg: sw4b {
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regulator-name = "SW4B";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-always-on;
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};
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sw5_reg: sw5 {
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regulator-name = "SW5";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1975000>;
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regulator-boot-on;
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regulator-always-on;
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};
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swbst_reg: swbst {
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regulator-name = "SWBST";
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regulator-boot-on;
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regulator-always-on;
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};
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vpll_reg: vpll {
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regulator-name = "VPLL";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1800000>;
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regulator-boot-on;
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};
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vrefddr_reg: vrefddr {
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regulator-name = "VREFDDR";
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regulator-boot-on;
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regulator-always-on;
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};
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vusb_reg: vusb {
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regulator-name = "VUSB";
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regulator-boot-on;
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regulator-always-on;
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};
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vusb2_reg: vusb2 {
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regulator-name = "VUSB2";
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regulator-min-microvolt = <2500000>;
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regulator-max-microvolt = <3000000>;
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regulator-boot-on;
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regulator-always-on;
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};
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vdac_reg: vdac {
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regulator-name = "VDAC";
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regulator-min-microvolt = <2750000>;
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regulator-max-microvolt = <2750000>;
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};
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vgen1_reg: vgen1 {
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regulator-name = "VGEN1";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1550000>;
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regulator-boot-on;
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regulator-always-on;
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};
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vgen2_reg: vgen2 {
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regulator-name = "VGEN2";
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regulator-min-microvolt = <2500000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-always-on;
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};
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};
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};
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};
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&tve {
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dac-supply = <&vdac_reg>;
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};
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