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Commit d58e9a02 authored by Qipan Li's avatar Qipan Li Committed by Linus Walleij
Browse files

pinctrl: sirf: add usp0_uart_nostreamctrl pin group for usp-uart without flowctrl 



this patch adds the lost pin group which supports to let USP0 to simulate
a UART without hardware flow control.

Signed-off-by: default avatarQipan Li <Qipan.Li@csr.com>
Signed-off-by: default avatarBarry Song <Baohua.Song@csr.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 42a708c9

arch/arm/boot/dts/atlas6.dtsi

+6 −0
Original line number Diff line number Diff line
@@ -485,6 +485,12 @@ 
                                                sirf,function = "usp0";

                                        };

                                };

				usp0_uart_nostreamctrl_pins_a: usp0@1 {

                                        usp0 {

                                                sirf,pins = "usp0_uart_nostreamctrl_grp";

                                                sirf,function = "usp0_uart_nostreamctrl";

                                        };

                                };

                                usp1_pins_a: usp1@0 {

                                        usp1 {

                                                sirf,pins = "usp1grp";

drivers/pinctrl/sirf/pinctrl-atlas6.c

+20 −0
Original line number Diff line number Diff line
@@ -509,6 +509,19 @@ static const struct sirfsoc_padmux usp0_padmux = { 


static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 };



static const struct sirfsoc_muxmask usp0_uart_nostreamctrl_muxmask[] = {

	{

		.group = 1,

		.mask = BIT(20) | BIT(21),

	},

};



static const struct sirfsoc_padmux usp0_uart_nostreamctrl_padmux = {

	.muxmask_counts = ARRAY_SIZE(usp0_uart_nostreamctrl_muxmask),

	.muxmask = usp0_uart_nostreamctrl_muxmask,

};



static const unsigned usp0_uart_nostreamctrl_pins[] = { 52, 53 };

static const struct sirfsoc_muxmask usp1_muxmask[] = {

	{

		.group = 0,
@@ -822,6 +835,8 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = { 
	SIRFSOC_PIN_GROUP("uart2grp", uart2_pins),

	SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins),

	SIRFSOC_PIN_GROUP("usp0grp", usp0_pins),

	SIRFSOC_PIN_GROUP("usp0_uart_nostreamctrl_grp",

					usp0_uart_nostreamctrl_pins),

	SIRFSOC_PIN_GROUP("usp1grp", usp1_pins),

	SIRFSOC_PIN_GROUP("i2c0grp", i2c0_pins),

	SIRFSOC_PIN_GROUP("i2c1grp", i2c1_pins),
@@ -862,6 +877,8 @@ static const char * const uart0grp[] = { "uart0grp" }; 
static const char * const uart1grp[] = { "uart1grp" };

static const char * const uart2grp[] = { "uart2grp" };

static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" };

static const char * const usp0_uart_nostreamctrl_grp[] = {

					"usp0_uart_nostreamctrl_grp" };

static const char * const usp0grp[] = { "usp0grp" };

static const char * const usp1grp[] = { "usp1grp" };

static const char * const i2c0grp[] = { "i2c0grp" };
@@ -904,6 +921,9 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = { 
	SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux),

	SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux),

	SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux),

	SIRFSOC_PMX_FUNCTION("usp0_uart_nostreamctrl",

						usp0_uart_nostreamctrl_grp,

						usp0_uart_nostreamctrl_padmux),

	SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux),

	SIRFSOC_PMX_FUNCTION("i2c0", i2c0grp, i2c0_padmux),

	SIRFSOC_PMX_FUNCTION("i2c1", i2c1grp, i2c1_padmux),