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Subject[PATCH 3/3] ARM: dts: qcom: basic HP TouchPad support
Date
Modify the Dragonboard device tree to support the most basic hardware on
the HP TouchPad. The headphone UART port and eMMC are supported.

Signed-off-by: Ben Wolsieffer <benwolsieffer@gmail.com>
---
arch/arm/boot/dts/qcom-apq8060-tenderloin.dts | 549 ++----------------
1 file changed, 45 insertions(+), 504 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-apq8060-tenderloin.dts b/arch/arm/boot/dts/qcom-apq8060-tenderloin.dts
index 996e73aa0b0b..e294f3920b9f 100644
--- a/arch/arm/boot/dts/qcom-apq8060-tenderloin.dts
+++ b/arch/arm/boot/dts/qcom-apq8060-tenderloin.dts
@@ -14,6 +14,8 @@ aliases {
};

chosen {
+ /* Bootloader passes console=tty1, which overrides stdout-path */
+ bootargs = "console=ttyMSM0,115200 earlycon";
stdout-path = "serial0:115200n8";
};

@@ -30,67 +32,18 @@ vph: regulator-fixed {
regulator-always-on;
regulator-boot-on;
};
-
- /* GPIO controlled ethernet power regulator */
- dragon_veth: xc622a331mrg {
- compatible = "regulator-fixed";
- regulator-name = "XC6222A331MR-G";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- vin-supply = <&vph>;
- gpio = <&pm8058_gpio 40 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_veth_gpios>;
- regulator-always-on;
- };
-
- /* VDDvario fixed regulator */
- dragon_vario: nds332p {
- compatible = "regulator-fixed";
- regulator-name = "NDS332P";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- vin-supply = <&pm8058_s3>;
- };
-
- /* This is a levelshifter for SDCC5 */
- dragon_vio_txb: txb0104rgyr {
- compatible = "regulator-fixed";
- regulator-name = "Dragon SDCC levelshifter";
- vin-supply = <&pm8058_l14>;
- regulator-always-on;
- };
- };
-
- /*
- * Capella CM3605 light and proximity sensor mounted directly
- * on the sensor board.
- */
- cm3605 {
- compatible = "capella,cm3605";
- vdd-supply = <&pm8058_l14>; // 2.85V
- aset-gpios = <&pm8058_gpio 35 GPIO_ACTIVE_LOW>;
- capella,aset-resistance-ohms = <100000>;
- /* Trig on both edges - getting close or far away */
- interrupts-extended = <&pm8058_gpio 34 IRQ_TYPE_EDGE_BOTH>;
- /* MPP05 analog input to the XOADC */
- io-channels = <&xoadc 0x00 0x05>;
- io-channel-names = "aout";
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_cm3605_gpios>, <&dragon_cm3605_mpps>;
};

soc {
pinctrl@800000 {
- /* eMMMC pins, all 8 data lines connected */
- dragon_sdcc1_pins: sdcc1 {
+ /* eMMC pins, all 8 data lines connected */
+ emmc_pins: sdcc1 {
mux {
pins = "gpio159", "gpio160", "gpio161",
"gpio162", "gpio163", "gpio164",
"gpio165", "gpio166", "gpio167",
"gpio168";
- function = "sdc1";
+ function = "sdc1";
};
clk {
pins = "gpio167"; /* SDC1 CLK */
@@ -111,54 +64,7 @@ data {
};
};

- /*
- * The SDCC3 pins are hardcoded (non-muxable) but need some pin
- * configuration.
- */
- dragon_sdcc3_pins: sdcc3 {
- clk {
- pins = "sdc3_clk";
- drive-strength = <8>;
- bias-disable;
- };
- cmd {
- pins = "sdc3_cmd";
- drive-strength = <8>;
- bias-pull-up;
- };
- data {
- pins = "sdc3_data";
- drive-strength = <8>;
- bias-pull-up;
- };
- };
-
- /* Second SD card slot pins */
- dragon_sdcc5_pins: sdcc5 {
- mux {
- pins = "gpio95", "gpio96", "gpio97",
- "gpio98", "gpio99", "gpio100";
- function = "sdc5";
- };
- clk {
- pins = "gpio97"; /* SDC5 CLK */
- drive-strength = <16>;
- bias-disable;
- };
- cmd {
- pins = "gpio95"; /* SDC5 CMD */
- drive-strength = <10>;
- bias-pull-up;
- };
- data {
- /* SDC5 D0 to D3 */
- pins = "gpio96", "gpio98", "gpio99", "gpio100";
- drive-strength = <10>;
- bias-pull-up;
- };
- };
-
- dragon_gsbi8_i2c_pins: gsbi8_i2c {
+ gsbi8_i2c_pins: gsbi8_i2c {
mux {
pins = "gpio64", "gpio65";
function = "gsbi8";
@@ -171,205 +77,33 @@ pinconf {
};
};

- dragon_gsbi12_i2c_pins: gsbi12_i2c {
- mux {
- pins = "gpio115", "gpio116";
- function = "gsbi12";
- };
- pinconf {
- pins = "gpio115", "gpio116";
- drive-strength = <16>;
- /* These have external pull-up 4.7kOhm to 1.8V */
- bias-disable;
- };
- };
-
- /* Primary serial port uart 0 pins */
- dragon_gsbi12_serial_pins: gsbi12_serial {
+ /* Headphone UART pins */
+ headphone_uart_pins: gsbi12_serial {
mux {
pins = "gpio117", "gpio118";
function = "gsbi12";
};
- tx {
- pins = "gpio117";
- drive-strength = <8>;
- bias-disable;
- };
rx {
- pins = "gpio118";
+ pins = "gpio117";
drive-strength = <2>;
bias-pull-up;
};
- };
-
- dragon_ebi2_pins: ebi2 {
- /*
- * Pins used by EBI2 on the Dragonboard, actually only
- * CS2 is used by a real peripheral. CS0 is just
- * routed to a test point.
- */
- mux0 {
- pins =
- /* "gpio39", CS1A_N this is not good to mux */
- "gpio40", /* CS2A_N */
- "gpio134"; /* CS0_N testpoint TP29 */
- function = "ebi2cs";
- };
- mux1 {
- pins =
- /* EBI2_ADDR_7 downto EBI2_ADDR_0 address bus */
- "gpio123", "gpio124", "gpio125", "gpio126",
- "gpio127", "gpio128", "gpio129", "gpio130",
- /* EBI2_DATA_15 downto EBI2_DATA_0 data bus */
- "gpio135", "gpio136", "gpio137", "gpio138",
- "gpio139", "gpio140", "gpio141", "gpio142",
- "gpio143", "gpio144", "gpio145", "gpio146",
- "gpio147", "gpio148", "gpio149", "gpio150",
- "gpio151", /* EBI2_OE_N */
- "gpio153", /* EBI2_ADV */
- "gpio157"; /* EBI2_WE_N */
- function = "ebi2";
+ tx {
+ pins = "gpio118";
+ drive-strength = <8>;
+ bias-disable;
};
- };
-
- /* Interrupt line for the KXSD9 accelerometer */
- dragon_kxsd9_gpios: kxsd9 {
- irq {
- pins = "gpio57"; /* IRQ line */
- bias-pull-up;
+ /* Connect headphone jack to UART rather than audio */
+ enable {
+ pins = "gpio58";
+ function = "gpio";
+ output-high;
};
};
};

qcom,ssbi@500000 {
pmic@0 {
- keypad@148 {
- linux,keymap = <
- MATRIX_KEY(0, 0, KEY_MENU)
- MATRIX_KEY(0, 2, KEY_1)
- MATRIX_KEY(0, 3, KEY_4)
- MATRIX_KEY(0, 4, KEY_7)
- MATRIX_KEY(1, 0, KEY_UP)
- MATRIX_KEY(1, 1, KEY_LEFT)
- MATRIX_KEY(1, 2, KEY_DOWN)
- MATRIX_KEY(1, 3, KEY_5)
- MATRIX_KEY(1, 3, KEY_8)
- MATRIX_KEY(2, 0, KEY_HOME)
- MATRIX_KEY(2, 1, KEY_REPLY)
- MATRIX_KEY(2, 2, KEY_2)
- MATRIX_KEY(2, 3, KEY_6)
- MATRIX_KEY(3, 0, KEY_VOLUMEUP)
- MATRIX_KEY(3, 1, KEY_RIGHT)
- MATRIX_KEY(3, 2, KEY_3)
- MATRIX_KEY(3, 3, KEY_9)
- MATRIX_KEY(3, 4, KEY_SWITCHVIDEOMODE)
- MATRIX_KEY(4, 0, KEY_VOLUMEDOWN)
- MATRIX_KEY(4, 1, KEY_BACK)
- MATRIX_KEY(4, 2, KEY_CAMERA)
- MATRIX_KEY(4, 3, KEY_KBDILLUMTOGGLE)
- >;
- keypad,num-rows = <6>;
- keypad,num-columns = <5>;
- };
-
- gpio@150 {
- dragon_ethernet_gpios: ethernet-gpios {
- pinconf {
- pins = "gpio7";
- function = "normal";
- input-enable;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_bmp085_gpios: bmp085-gpios {
- pinconf {
- pins = "gpio16";
- function = "normal";
- input-enable;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_mpu3050_gpios: mpu3050-gpios {
- pinconf {
- pins = "gpio17";
- function = "normal";
- input-enable;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_sdcc3_gpios: sdcc3-gpios {
- pinconf {
- pins = "gpio22";
- function = "normal";
- input-enable;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_sdcc5_gpios: sdcc5-gpios {
- pinconf {
- pins = "gpio26";
- function = "normal";
- input-enable;
- bias-pull-up;
- qcom,pull-up-strength = <PMIC_GPIO_PULL_UP_30>;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_ak8975_gpios: ak8975-gpios {
- pinconf {
- pins = "gpio33";
- function = "normal";
- input-enable;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_cm3605_gpios: cm3605-gpios {
- /* Pin 34 connected to the proxy IRQ */
- pinconf_gpio34 {
- pins = "gpio34";
- function = "normal";
- input-enable;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- /* Pin 35 connected to ASET */
- pinconf_gpio35 {
- pins = "gpio35";
- function = "normal";
- output-high;
- bias-disable;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- dragon_veth_gpios: veth-gpios {
- pinconf {
- pins = "gpio40";
- function = "normal";
- bias-disable;
- drive-push-pull;
- };
- };
- };
-
- mpps@50 {
- dragon_cm3605_mpps: cm3605-mpps-state {
- pinconf {
- pins = "mpp5";
- function = "analog";
- input-enable;
- bias-high-impedance;
- /* Let's use channel 5 */
- qcom,amux-route = <PMIC_MPP_AMUX_ROUTE_CH5>;
- power-source = <PM8058_GPIO_S3>;
- };
- };
- };
-
xoadc@197 {
/* Reference voltage 2.2 V */
xoadc-ref-supply = <&pm8058_l18>;
@@ -396,46 +130,6 @@ mpp9@9 {
reg = <0x00 0x09>;
};
};
-
- led@48 {
- /*
- * The keypad LED @0x48 is routed to
- * the sensor board where it is
- * connected to an infrared LED
- * SFH4650 (60mW, @850nm) next to the
- * ambient light and proximity sensor
- * Capella Microsystems CM3605.
- */
- compatible = "qcom,pm8058-keypad-led";
- reg = <0x48>;
- label = "pm8058:infrared:proximitysensor";
- default-state = "off";
- linux,default-trigger = "cm3605";
- };
- led@131 {
- compatible = "qcom,pm8058-led";
- reg = <0x131>;
- label = "pm8058:red";
- default-state = "off";
- };
- led@132 {
- /*
- * This is actually green too on my
- * board, but documented as yellow.
- */
- compatible = "qcom,pm8058-led";
- reg = <0x132>;
- label = "pm8058:yellow";
- default-state = "off";
- linux,default-trigger = "mmc0";
- };
- led@133 {
- compatible = "qcom,pm8058-led";
- reg = <0x133>;
- label = "pm8058:green";
- default-state = "on";
- linux,default-trigger = "heartbeat";
- };
};
};

@@ -446,151 +140,18 @@ gsbi@19800000 {
i2c@19880000 {
status = "okay";
pinctrl-names = "default";
- pinctrl-0 = <&dragon_gsbi8_i2c_pins>;
-
- eeprom@52 {
- /* A 16KiB Platform ID EEPROM on the CPU carrier board */
- compatible = "atmel,24c128";
- reg = <0x52>;
- vcc-supply = <&pm8058_s3>;
- pagesize = <64>;
- };
- wm8903: wm8903@1a {
- /* This Woolfson Micro device has an unrouted interrupt line */
- compatible = "wlf,wm8903";
- reg = <0x1a>;
-
- AVDD-supply = <&pm8058_l16>;
- CPVDD-supply = <&pm8058_l16>;
- DBVDD-supply = <&pm8058_s3>;
- DCVDD-supply = <&pm8058_l0>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- micdet-cfg = <0>;
- micdet-delay = <100>;
- gpio-cfg = <0xffffffff 0xffffffff 0 0xffffffff 0xffffffff>;
- };
+ pinctrl-0 = <&gsbi8_i2c_pins>;
};
};

gsbi@19c00000 {
status = "okay";
- qcom,mode = <GSBI_PROT_I2C_UART>;
+ qcom,mode = <GSBI_PROT_UART_W_FC>;

serial@19c40000 {
status = "okay";
pinctrl-names = "default";
- pinctrl-0 = <&dragon_gsbi12_serial_pins>;
- };
-
- i2c@19c80000 {
- status = "okay";
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_gsbi12_i2c_pins>;
-
- ak8975@c {
- compatible = "asahi-kasei,ak8975";
- reg = <0x0c>;
- interrupt-parent = <&pm8058_gpio>;
- interrupts = <33 IRQ_TYPE_EDGE_RISING>;
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_ak8975_gpios>;
- vid-supply = <&pm8058_lvs0>; // 1.8V
- vdd-supply = <&pm8058_l14>; // 2.85V
- };
- bmp085@77 {
- compatible = "bosch,bmp085";
- reg = <0x77>;
- interrupt-parent = <&pm8058_gpio>;
- interrupts = <16 IRQ_TYPE_EDGE_RISING>;
- reset-gpios = <&tlmm 86 GPIO_ACTIVE_LOW>;
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_bmp085_gpios>;
- vddd-supply = <&pm8058_lvs0>; // 1.8V
- vdda-supply = <&pm8058_l14>; // 2.85V
- };
- mpu3050@68 {
- compatible = "invensense,mpu3050";
- reg = <0x68>;
- /*
- * GPIO17 is pulled high by a 10k
- * resistor to VLOGIC so needs to be
- * active low/falling edge.
- */
- interrupts-extended = <&pm8058_gpio 17 IRQ_TYPE_EDGE_FALLING>;
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_mpu3050_gpios>;
- vlogic-supply = <&pm8058_lvs0>; // 1.8V
- vdd-supply = <&pm8058_l14>; // 2.85V
-
- /*
- * The MPU-3050 acts as a hub for the
- * accelerometer.
- */
- i2c-gate {
- #address-cells = <1>;
- #size-cells = <0>;
-
- kxsd9@18 {
- compatible = "kionix,kxsd9";
- reg = <0x18>;
- interrupt-parent = <&tlmm>;
- interrupts = <57 IRQ_TYPE_EDGE_FALLING>;
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_kxsd9_gpios>;
- iovdd-supply = <&pm8058_lvs0>; // 1.8V
- vdd-supply = <&pm8058_l14>; // 2.85V
- };
- };
- };
- };
- };
-
- external-bus@1a100000 {
- /* The EBI2 will instantiate first, then populate its children */
- status = "okay";
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_ebi2_pins>;
-
- /*
- * An on-board SMSC LAN9221 chip for "debug ethernet",
- * which is actually just an ordinary ethernet on the
- * EBI2. This has a 25MHz chrystal next to it, so no
- * clocking is needed.
- */
- ethernet@2,0 {
- compatible = "smsc,lan9221", "smsc,lan9115";
- reg = <2 0x0 0x100>;
- /*
- * The second interrupt is the PME interrupt
- * for network wakeup, connected to the TLMM.
- */
- interrupts-extended = <&pm8058_gpio 7 IRQ_TYPE_EDGE_FALLING>,
- <&tlmm 29 IRQ_TYPE_EDGE_RISING>;
- reset-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>;
- vdd33a-supply = <&dragon_veth>;
- vddvario-supply = <&dragon_vario>;
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_ethernet_gpios>;
- phy-mode = "mii";
- reg-io-width = <2>;
- smsc,force-external-phy;
- smsc,irq-push-pull;
-
- /*
- * SLOW chipselect config
- * Delay 9 cycles (140ns@64MHz) between SMSC
- * LAN9221 Ethernet controller reads and writes
- * on CS2.
- */
- qcom,xmem-recovery-cycles = <0>;
- qcom,xmem-write-hold-cycles = <3>;
- qcom,xmem-write-delta-cycles = <31>;
- qcom,xmem-read-delta-cycles = <28>;
- qcom,xmem-write-wait-cycles = <9>;
- qcom,xmem-read-wait-cycles = <9>;
+ pinctrl-0 = <&headphone_uart_pins>;
};
};

@@ -758,13 +319,13 @@ l9 {
bias-pull-down;
};
l10 {
- regulator-min-microvolt = <2600000>;
- regulator-max-microvolt = <2600000>;
+ regulator-min-microvolt = <3050000>;
+ regulator-max-microvolt = <3050000>;
bias-pull-down;
};
l11 {
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
+ regulator-min-microvolt = <2850000>;
+ regulator-max-microvolt = <2850000>;
bias-pull-down;
};
l12 {
@@ -790,10 +351,13 @@ l16 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
bias-pull-down;
- regulator-always-on;
+ /*
+ * RPM driver can't handle always-on regulators that are
+ * supplied by regulators initialized after them.
+ */
+ // regulator-always-on;
};
l17 {
- // 1.5V according to schematic
regulator-min-microvolt = <2600000>;
regulator-max-microvolt = <2600000>;
bias-pull-down;
@@ -804,8 +368,8 @@ l18 {
bias-pull-down;
};
l19 {
- regulator-min-microvolt = <2500000>;
- regulator-max-microvolt = <2500000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
bias-pull-down;
};
l20 {
@@ -814,14 +378,16 @@ l20 {
bias-pull-down;
};
l21 {
- // 1.1 V according to schematic
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
bias-pull-down;
- regulator-always-on;
+ /*
+ * RPM driver can't handle always-on regulators that are
+ * supplied by regulators initialized after them.
+ */
+ // regulator-always-on;
};
l22 {
- // 1.2 V according to schematic
regulator-min-microvolt = <1150000>;
regulator-max-microvolt = <1150000>;
bias-pull-down;
@@ -845,7 +411,7 @@ l25 {
};

s0 {
- // regulator-min-microvolt = <500000>;
+ // regulator-min-microvolt = <800000>;
// regulator-max-microvolt = <1325000>;
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
@@ -853,8 +419,8 @@ s0 {
bias-pull-down;
};
s1 {
- // regulator-min-microvolt = <500000>;
- // regulator-max-microvolt = <1250000>;
+ // regulator-min-microvolt = <800000>;
+ // regulator-max-microvolt = <1325000>;
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
qcom,switch-mode-frequency = <1600000>;
@@ -871,15 +437,15 @@ s3 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
qcom,switch-mode-frequency = <1600000>;
- regulator-always-on;
bias-pull-down;
+ regulator-always-on;
};
s4 {
regulator-min-microvolt = <2200000>;
regulator-max-microvolt = <2200000>;
qcom,switch-mode-frequency = <1600000>;
- regulator-always-on;
bias-pull-down;
+ regulator-always-on;
};

/* LVS0 and LVS1 are just switches */
@@ -897,41 +463,16 @@ ncp {
};
};
};
+
amba {
- /* Internal 3.69 GiB eMMC */
+ /* Internal 16/32 GiB eMMC */
mmc@12400000 {
status = "okay";
pinctrl-names = "default";
- pinctrl-0 = <&dragon_sdcc1_pins>;
+ pinctrl-0 = <&emmc_pins>;
vmmc-supply = <&pm8901_l5>;
vqmmc-supply = <&pm8901_lvs0>;
};
-
- /* External micro SD card, directly connected, pulled up to 2.85 V */
- mmc@12180000 {
- status = "okay";
- /* Enable SSBI GPIO 22 as input, use for card detect */
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_sdcc3_pins>, <&dragon_sdcc3_gpios>;
- cd-gpios = <&pm8058_gpio 22 GPIO_ACTIVE_LOW>;
- wp-gpios = <&tlmm 110 GPIO_ACTIVE_HIGH>;
- vmmc-supply = <&pm8058_l14>;
- };
-
- /*
- * Second external micro SD card, using two TXB104RGYR levelshifters
- * to lift from 1.8 V to 2.85 V
- */
- mmc@12200000 {
- status = "okay";
- /* Enable SSBI GPIO 26 as input, use for card detect */
- pinctrl-names = "default";
- pinctrl-0 = <&dragon_sdcc5_pins>, <&dragon_sdcc5_gpios>;
- cd-gpios = <&pm8058_gpio 26 GPIO_ACTIVE_LOW>;
- wp-gpios = <&tlmm 106 GPIO_ACTIVE_HIGH>;
- vmmc-supply = <&pm8058_l14>;
- vqmmc-supply = <&dragon_vio_txb>;
- };
};
};
};
--
2.34.1
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