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r: 350532
b: refs/heads/master
c: 7ac63ac
h: refs/heads/master
v: v3
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Linus Walleij committed Feb 8, 2013
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: a0d72094f0abad3cbeeed618d24fd0ce1968d1a8
refs/heads/master: 7ac63ac61d67703aba1add4a89c4de702068d2f2
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NVIDIA Tegra114 pinmux controller

The Tegra114 pinctrl binding is very similar to the Tegra20 and Tegra30
pinctrl binding, as described in nvidia,tegra20-pinmux.txt and
nvidia,tegra30-pinmux.txt. In fact, this document assumes that binding as
a baseline, and only documents the differences between the two bindings.

Required properties:
- compatible: "nvidia,tegra114-pinmux"
- reg: Should contain the register physical address and length for each of
the pad control and mux registers. The first bank of address must be the
driver strength pad control register address and second bank address must
be pinmux register address.

Tegra114 adds the following optional properties for pin configuration subnodes:
- nvidia,enable-input: Integer. Enable the pin's input path. 0: no, 1: yes.
- nvidia,open-drain: Integer. Enable open drain mode. 0: no, 1: yes.
- nvidia,lock: Integer. Lock the pin configuration against further changes
until reset. 0: no, 1: yes.
- nvidia,io-reset: Integer. Reset the IO path. 0: no, 1: yes.
- nvidia,rcv-sel: Integer. Select VIL/VIH receivers. 0: normal, 1: high.
- nvidia,drive-type: Integer. Valid range 0...3.

As with Tegra20 and Terga30, see the Tegra TRM for complete details regarding
which groups support which functionality.

Valid values for pin and group names are:

per-pin mux groups:

These all support nvidia,function, nvidia,tristate, nvidia,pull,
nvidia,enable-input, nvidia,lock. Some support nvidia,open-drain,
nvidia,io-reset and nvidia,rcv-sel.

ulpi_data0_po1, ulpi_data1_po2, ulpi_data2_po3, ulpi_data3_po4,
ulpi_data4_po5, ulpi_data5_po6, ulpi_data6_po7, ulpi_data7_po0,
ulpi_clk_py0, ulpi_dir_py1, ulpi_nxt_py2, ulpi_stp_py3, dap3_fs_pp0,
dap3_din_pp1, dap3_dout_pp2, dap3_sclk_pp3, pv0, pv1, sdmmc1_clk_pz0,
sdmmc1_cmd_pz1, sdmmc1_dat3_py4, sdmmc1_dat2_py5, sdmmc1_dat1_py6,
sdmmc1_dat0_py7, clk2_out_pw5, clk2_req_pcc5, hdmi_int_pn7, ddc_scl_pv4,
ddc_sda_pv5, uart2_rxd_pc3, uart2_txd_pc2, uart2_rts_n_pj6,
uart2_cts_n_pj5, uart3_txd_pw6, uart3_rxd_pw7, uart3_cts_n_pa1,
uart3_rts_n_pc0, pu0, pu1, pu2, pu3, pu4, pu5, pu6, gen1_i2c_sda_pc5,
gen1_i2c_scl_pc4, dap4_fs_pp4, dap4_din_pp5, dap4_dout_pp6, dap4_sclk_pp7,
clk3_out_pee0, clk3_req_pee1, gmi_wp_n_pc7, gmi_iordy_pi5, gmi_wait_pi7,
gmi_adv_n_pk0, gmi_clk_pk1, gmi_cs0_n_pj0, gmi_cs1_n_pj2, gmi_cs2_n_pk3,
gmi_cs3_n_pk4, gmi_cs4_n_pk2, gmi_cs6_n_pi3, gmi_cs7_n_pi6, gmi_ad0_pg0,
gmi_ad1_pg1, gmi_ad2_pg2, gmi_ad3_pg3, gmi_ad4_pg4, gmi_ad5_pg5,
gmi_ad6_pg6, gmi_ad7_pg7, gmi_ad8_ph0, gmi_ad9_ph1, gmi_ad10_ph2,
gmi_ad11_ph3, gmi_ad12_ph4, gmi_ad13_ph5, gmi_ad14_ph6, gmi_ad15_ph7,
gmi_a16_pj7, gmi_a17_pb0, gmi_a18_pb1, gmi_a19_pk7, gmi_wr_n_pi0,
gmi_oe_n_pi1, gmi_dqs_p_pj3, gmi_rst_n_pi4, gen2_i2c_scl_pt5,
gen2_i2c_sda_pt6, sdmmc4_clk_pcc4, sdmmc4_cmd_pt7, sdmmc4_dat0_paa0,
sdmmc4_dat1_paa1, sdmmc4_dat2_paa2, sdmmc4_dat3_paa3, sdmmc4_dat4_paa4,
sdmmc4_dat5_paa5, sdmmc4_dat6_paa6, sdmmc4_dat7_paa7, cam_mclk_pcc0,
pcc1, pbb0, cam_i2c_scl_pbb1, cam_i2c_sda_pbb2, pbb3, pbb4, pbb5, pbb6,
pbb7, pcc2, pwr_i2c_scl_pz6, pwr_i2c_sda_pz7, kb_row0_pr0, kb_row1_pr1,
kb_row2_pr2, kb_row3_pr3, kb_row4_pr4, kb_row5_pr5, kb_row6_pr6,
kb_row7_pr7, kb_row8_ps0, kb_row9_ps1, kb_row10_ps2, kb_col0_pq0,
kb_col1_pq1, kb_col2_pq2, kb_col3_pq3, kb_col4_pq4, kb_col5_pq5,
kb_col6_pq6, kb_col7_pq7, clk_32k_out_pa0, sys_clk_req_pz5, core_pwr_req,
cpu_pwr_req, pwr_int_n, owr, dap1_fs_pn0, dap1_din_pn1, dap1_dout_pn2,
dap1_sclk_pn3, clk1_req_pee2, clk1_out_pw4, spdif_in_pk6, spdif_out_pk5,
dap2_fs_pa2, dap2_din_pa4, dap2_dout_pa5, dap2_sclk_pa3, dvfs_pwm_px0,
gpio_x1_aud_px1, gpio_x3_aud_px3, dvfs_clk_px2, gpio_x4_aud_px4,
gpio_x5_aud_px5, gpio_x6_aud_px6, gpio_x7_aud_px7, sdmmc3_clk_pa6,
sdmmc3_cmd_pa7, sdmmc3_dat0_pb7, sdmmc3_dat1_pb6, sdmmc3_dat2_pb5,
sdmmc3_dat3_pb4, hdmi_cec_pee3, sdmmc1_wp_n_pv3, sdmmc3_cd_n_pv2,
gpio_w2_aud_pw2, gpio_w3_aud_pw3, usb_vbus_en0_pn4, usb_vbus_en1_pn5,
sdmmc3_clk_lb_in_pee5, sdmmc3_clk_lb_out_pee4, reset_out_n.

drive groups:

These all support nvidia,pull-down-strength, nvidia,pull-up-strength,
nvidia,slew-rate-rising, nvidia,slew-rate-falling. Most but not all
support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode
and nvidia,drive-type.

ao1, ao2, at1, at2, at3, at4, at5, cdev1, cdev2, dap1, dap2, dap3, dap4,
dbg, sdio3, spi, uaa, uab, uart2, uart3, sdio1, ddc, gma, gme, gmf, gmg,
gmh, owr, uda.

Example:

pinmux: pinmux {
compatible = "nvidia,tegra114-pinmux";
reg = <0x70000868 0x148 /* Pad control registers */
0x70003000 0x40c>; /* PinMux registers */
};

Example board file extract:

pinctrl {
sdmmc4_default: pinmux {
sdmmc4_clk_pcc4 {
nvidia,pins = "sdmmc4_clk_pcc4",
nvidia,function = "sdmmc4";
nvidia,pull = <0>;
nvidia,tristate = <0>;
};
sdmmc4_dat0_paa0 {
nvidia,pins = "sdmmc4_dat0_paa0",
"sdmmc4_dat1_paa1",
"sdmmc4_dat2_paa2",
"sdmmc4_dat3_paa3",
"sdmmc4_dat4_paa4",
"sdmmc4_dat5_paa5",
"sdmmc4_dat6_paa6",
"sdmmc4_dat7_paa7";
nvidia,function = "sdmmc4";
nvidia,pull = <2>;
nvidia,tristate = <0>;
};
};
};

sdhci@78000400 {
pinctrl-names = "default";
pinctrl-0 = <&sdmmc4_default>;
};
140 changes: 140 additions & 0 deletions trunk/Documentation/devicetree/bindings/pinctrl/ste,nomadik.txt
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ST Ericsson Nomadik pinmux controller

Required properties:
- compatible: "stericsson,nmk-pinctrl", "stericsson,nmk-pinctrl-db8540",
"stericsson,nmk-pinctrl-stn8815"
- reg: Should contain the register physical address and length of the PRCMU.

Please refer to pinctrl-bindings.txt in this directory for details of the
common pinctrl bindings used by client devices, including the meaning of the
phrase "pin configuration node".

ST Ericsson's pin configuration nodes act as a container for an arbitrary number of
subnodes. Each of these subnodes represents some desired configuration for a
pin, a group, or a list of pins or groups. This configuration can include the
mux function to select on those pin(s)/group(s), and various pin configuration
parameters, such as input, output, pull up, pull down...

The name of each subnode is not important; all subnodes should be enumerated
and processed purely based on their content.

Required subnode-properties:
- ste,pins : An array of strings. Each string contains the name of a pin or
group.

Optional subnode-properties:
- ste,function: A string containing the name of the function to mux to the
pin or group.

- ste,config: Handle of pin configuration node (e.g. ste,config = <&slpm_in_wkup_pdis>)

- ste,input : <0/1/2>
0: input with no pull
1: input with pull up,
2: input with pull down,

- ste,output: <0/1/2>
0: output low,
1: output high,
2: output (value is not specified).

- ste,sleep: <0/1>
0: sleep mode disable,
1: sleep mode enable.

- ste,sleep-input: <0/1/2/3>
0: sleep input with no pull,
1: sleep input with pull up,
2: sleep input with pull down.
3: sleep input and keep last input configuration (no pull, pull up or pull down).

- ste,sleep-output: <0/1/2>
0: sleep output low,
1: sleep output high,
2: sleep output (value is not specified).

- ste,sleep-gpio: <0/1>
0: disable sleep gpio mode,
1: enable sleep gpio mode.

- ste,sleep-wakeup: <0/1>
0: wake-up detection enabled,
1: wake-up detection disabled.

- ste,sleep-pull-disable: <0/1>
0: GPIO pull-up or pull-down resistor is enabled, when pin is an input,
1: GPIO pull-up and pull-down resistor are disabled.

Example board file extract:

pinctrl@80157000 {
compatible = "stericsson,nmk-pinctrl";
reg = <0x80157000 0x2000>;

pinctrl-names = "default";

slpm_in_wkup_pdis: slpm_in_wkup_pdis {
ste,sleep = <1>;
ste,sleep-input = <3>;
ste,sleep-wakeup = <1>;
ste,sleep-pull-disable = <0>;
};

slpm_out_hi_wkup_pdis: slpm_out_hi_wkup_pdis {
ste,sleep = <1>;
ste,sleep-output = <1>;
ste,sleep-wakeup = <1>;
ste,sleep-pull-disable = <0>;
};

slpm_out_wkup_pdis: slpm_out_wkup_pdis {
ste,sleep = <1>;
ste,sleep-output = <2>;
ste,sleep-wakeup = <1>;
ste,sleep-pull-disable = <0>;
};

uart0 {
uart0_default_mux: uart0_mux {
u0_default_mux {
ste,function = "u0";
ste,pins = "u0_a_1";
};
};
uart0_default_mode: uart0_default {
uart0_default_cfg1 {
ste,pins = "GPIO0", "GPIO2";
ste,input = <1>;
};

uart0_default_cfg2 {
ste,pins = "GPIO1", "GPIO3";
ste,output = <1>;
};
};
uart0_sleep_mode: uart0_sleep {
uart0_sleep_cfg1 {
ste,pins = "GPIO0", "GPIO2";
ste,config = <&slpm_in_wkup_pdis>;
};
uart0_sleep_cfg2 {
ste,pins = "GPIO1";
ste,config = <&slpm_out_hi_wkup_pdis>;
};
uart0_sleep_cfg3 {
ste,pins = "GPIO3";
ste,config = <&slpm_out_wkup_pdis>;
};
};
};
};

uart@80120000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x80120000 0x1000>;
interrupts = <0 11 0x4>;

pinctrl-names = "default","sleep";
pinctrl-0 = <&uart0_default_mux>, <&uart0_default_mode>;
pinctrl-1 = <&uart0_sleep_mode>;
};
Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,7 @@ simtek
sirf SiRF Technology, Inc.
snps Synopsys, Inc.
st STMicroelectronics
ste ST-Ericsson
stericsson ST-Ericsson
ti Texas Instruments
via VIA Technologies, Inc.
Expand Down
18 changes: 15 additions & 3 deletions trunk/Documentation/pinctrl.txt
Original file line number Diff line number Diff line change
Expand Up @@ -972,6 +972,18 @@ pinmux core.
Pin control requests from drivers
=================================

When a device driver is about to probe the device core will automatically
attempt to issue pinctrl_get_select_default() on these devices.
This way driver writers do not need to add any of the boilerplate code
of the type found below. However when doing fine-grained state selection
and not using the "default" state, you may have to do some device driver
handling of the pinctrl handles and states.

So if you just want to put the pins for a certain device into the default
state and be done with it, there is nothing you need to do besides
providing the proper mapping table. The device core will take care of
the rest.

Generally it is discouraged to let individual drivers get and enable pin
control. So if possible, handle the pin control in platform code or some other
place where you have access to all the affected struct device * pointers. In
Expand Down Expand Up @@ -1097,9 +1109,9 @@ situations that can be electrically unpleasant, you will certainly want to
mux in and bias pins in a certain way before the GPIO subsystems starts to
deal with them.

The above can be hidden: using pinctrl hogs, the pin control driver may be
setting up the config and muxing for the pins when it is probing,
nevertheless orthogonal to the GPIO subsystem.
The above can be hidden: using the device core, the pinctrl core may be
setting up the config and muxing for the pins right before the device is
probing, nevertheless orthogonal to the GPIO subsystem.

But there are also situations where it makes sense for the GPIO subsystem
to communicate directly with with the pinctrl subsystem, using the latter
Expand Down
10 changes: 5 additions & 5 deletions trunk/arch/arm/boot/dts/dbx5x0.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -170,10 +170,9 @@
gpio-bank = <8>;
};

pinctrl@80157000 {
// This is actually the PRCMU base address
reg = <0x80157000 0x2000>;
compatible = "stericsson,nmk_pinctrl";
pinctrl {
compatible = "stericsson,nmk-pinctrl";
prcm = <&prcmu>;
};

usb@a03e0000 {
Expand All @@ -190,9 +189,10 @@
interrupts = <0 25 0x4>;
};

prcmu@80157000 {
prcmu: prcmu@80157000 {
compatible = "stericsson,db8500-prcmu";
reg = <0x80157000 0x1000>;
reg-names = "prcmu";
interrupts = <0 47 0x4>;
#address-cells = <1>;
#size-cells = <1>;
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/mach-exynos/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -414,7 +414,7 @@ config MACH_EXYNOS4_DT
select CPU_EXYNOS4210
select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
select PINCTRL
select PINCTRL_EXYNOS4
select PINCTRL_EXYNOS
select USE_OF
help
Machine support for Samsung Exynos4 machine with device tree enabled.
Expand Down
6 changes: 6 additions & 0 deletions trunk/arch/arm/mach-ux500/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -11,13 +11,19 @@ config UX500_SOC_COMMON
select COMMON_CLK
select PINCTRL
select PINCTRL_NOMADIK
select PINCTRL_ABX500
select PL310_ERRATA_753970 if CACHE_PL310

config UX500_SOC_DB8500
bool
select CPU_FREQ_TABLE if CPU_FREQ
select MFD_DB8500_PRCMU
select PINCTRL_DB8500
select PINCTRL_DB8540
select PINCTRL_AB8500
select PINCTRL_AB8505
select PINCTRL_AB9540
select PINCTRL_AB8540
select REGULATOR
select REGULATOR_DB8500_PRCMU

Expand Down
19 changes: 1 addition & 18 deletions trunk/arch/arm/mach-ux500/board-mop500.c
Original file line number Diff line number Diff line change
Expand Up @@ -90,26 +90,9 @@ static struct platform_device snowball_gpio_en_3v3_regulator_dev = {
},
};

static struct ab8500_gpio_platform_data ab8500_gpio_pdata = {
static struct abx500_gpio_platform_data ab8500_gpio_pdata = {
.gpio_base = MOP500_AB8500_PIN_GPIO(1),
.irq_base = MOP500_AB8500_VIR_GPIO_IRQ_BASE,
/* config_reg is the initial configuration of ab8500 pins.
* The pins can be configured as GPIO or alt functions based
* on value present in GpioSel1 to GpioSel6 and AlternatFunction
* register. This is the array of 7 configuration settings.
* One has to compile time decide these settings. Below is the
* explanation of these setting
* GpioSel1 = 0x00 => Pins GPIO1 to GPIO8 are not used as GPIO
* GpioSel2 = 0x1E => Pins GPIO10 to GPIO13 are configured as GPIO
* GpioSel3 = 0x80 => Pin GPIO24 is configured as GPIO
* GpioSel4 = 0x01 => Pin GPIo25 is configured as GPIO
* GpioSel5 = 0x7A => Pins GPIO34, GPIO36 to GPIO39 are conf as GPIO
* GpioSel6 = 0x00 => Pins GPIO41 & GPIo42 are not configured as GPIO
* AlternaFunction = 0x00 => If Pins GPIO10 to 13 are not configured
* as GPIO then this register selectes the alternate fucntions
*/
.config_reg = {0x00, 0x1E, 0x80, 0x01,
0x7A, 0x00, 0x00},
};

/* ab8500-codec */
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/arm/mach-ux500/cpu-db8500.c
Original file line number Diff line number Diff line change
Expand Up @@ -285,7 +285,7 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("st,nomadik-i2c", 0x80110000, "nmk-i2c.3", NULL),
OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL),
/* Requires device name bindings. */
OF_DEV_AUXDATA("stericsson,nmk_pinctrl", U8500_PRCMU_BASE,
OF_DEV_AUXDATA("stericsson,nmk-pinctrl", U8500_PRCMU_BASE,
"pinctrl-db8500", NULL),
/* Requires clock name and DMA bindings. */
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
Expand Down
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