pinctrl: sirf: add pin group for USP0 with only RX or TX frame sync

USP0 has multiple functions, and has RX and TX frame sync signals,
for some scenarios like audio PCM, we don't need both of them.
so here we add two possibilities for USP0 only holding one of TX
and RX frame sync.

Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com>
Signed-off-by: Barry Song <Barry.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/sirf/pinctrl-prima2.c b/drivers/pinctrl/sirf/pinctrl-prima2.c
index 97046410e0cf298e14232fc40d40323beb094653..37b42651d76ac5ba502ee7fa90417c24304e6122 100644 (file)
--- a/drivers/pinctrl/sirf/pinctrl-prima2.c
+++ b/drivers/pinctrl/sirf/pinctrl-prima2.c
@@ -497,6 +497,40 @@ static const struct sirfsoc_padmux usp0_padmux = {
 
 static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 };
 
+static const struct sirfsoc_muxmask usp0_only_utfs_muxmask[] = {
+       {
+               .group = 1,
+               .mask = BIT(19) | BIT(20) | BIT(21) | BIT(22),
+       },
+};
+
+static const struct sirfsoc_padmux usp0_only_utfs_padmux = {
+       .muxmask_counts = ARRAY_SIZE(usp0_only_utfs_muxmask),
+       .muxmask = usp0_only_utfs_muxmask,
+       .ctrlreg = SIRFSOC_RSC_PIN_MUX,
+       .funcmask = BIT(1) | BIT(2) | BIT(6),
+       .funcval = 0,
+};
+
+static const unsigned usp0_only_utfs_pins[] = { 51, 52, 53, 54 };
+
+static const struct sirfsoc_muxmask usp0_only_urfs_muxmask[] = {
+       {
+               .group = 1,
+               .mask = BIT(19) | BIT(20) | BIT(21) | BIT(23),
+       },
+};
+
+static const struct sirfsoc_padmux usp0_only_urfs_padmux = {
+       .muxmask_counts = ARRAY_SIZE(usp0_only_urfs_muxmask),
+       .muxmask = usp0_only_urfs_muxmask,
+       .ctrlreg = SIRFSOC_RSC_PIN_MUX,
+       .funcmask = BIT(1) | BIT(2) | BIT(9),
+       .funcval = 0,
+};
+
+static const unsigned usp0_only_urfs_pins[] = { 51, 52, 53, 55 };
+
 static const struct sirfsoc_muxmask usp0_uart_nostreamctrl_muxmask[] = {
        {
                .group = 1,
@@ -853,6 +887,8 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
        SIRFSOC_PIN_GROUP("usp0grp", usp0_pins),
        SIRFSOC_PIN_GROUP("usp0_uart_nostreamctrl_grp",
                                        usp0_uart_nostreamctrl_pins),
+       SIRFSOC_PIN_GROUP("usp0_only_utfs_grp", usp0_only_utfs_pins),
+       SIRFSOC_PIN_GROUP("usp0_only_urfs_grp", usp0_only_urfs_pins),
        SIRFSOC_PIN_GROUP("usp1grp", usp1_pins),
        SIRFSOC_PIN_GROUP("usp1_uart_nostreamctrl_grp",
                                        usp1_uart_nostreamctrl_pins),
@@ -901,6 +937,8 @@ static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" };
 static const char * const usp0grp[] = { "usp0grp" };
 static const char * const usp0_uart_nostreamctrl_grp[] =
                                        { "usp0_uart_nostreamctrl_grp" };
+static const char * const usp0_only_utfs_grp[] = { "usp0_only_utfs_grp" };
+static const char * const usp0_only_urfs_grp[] = { "usp0_only_urfs_grp" };
 static const char * const usp1grp[] = { "usp1grp" };
 static const char * const usp1_uart_nostreamctrl_grp[] =
                                        { "usp1_uart_nostreamctrl_grp" };
@@ -949,6 +987,8 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
        SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux),
        SIRFSOC_PMX_FUNCTION("usp0_uart_nostreamctrl",
                usp0_uart_nostreamctrl_grp, usp0_uart_nostreamctrl_padmux),
+       SIRFSOC_PMX_FUNCTION("usp0_only_utfs", usp0_only_utfs_grp, usp0_only_utfs_padmux),
+       SIRFSOC_PMX_FUNCTION("usp0_only_urfs", usp0_only_urfs_grp, usp0_only_urfs_padmux),
        SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux),
        SIRFSOC_PMX_FUNCTION("usp1_uart_nostreamctrl",
                usp1_uart_nostreamctrl_grp, usp1_uart_nostreamctrl_padmux),