pinctrl: nomadik: split stn8815 UART0 pin groups

Split the UART pin groups so we can activate RX/TX, CTS/RTS and
the modem pins (DCD, DSR, RI, DTR) as three different groups
with function u0.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c b/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
index a2de3b7a57a07d0abea37c65e5793f29d2a8beff..587b222f12f3cf2239b35d71b83de1a287ef9e27 100644 (file)
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
@@ -271,9 +271,11 @@ static const struct pinctrl_pin_desc nmk_stn8815_pins[] = {
  */
 
 /* Altfunction A */
-static const unsigned u0_a_1_pins[] = { STN8815_PIN_B4, STN8815_PIN_D5,
-       STN8815_PIN_C5, STN8815_PIN_A4, STN8815_PIN_B5, STN8815_PIN_D6,
-       STN8815_PIN_C6, STN8815_PIN_B6 };
+static const unsigned u0txrx_a_1_pins[] = { STN8815_PIN_B4, STN8815_PIN_D5 };
+static const unsigned u0ctsrts_a_1_pins[] = { STN8815_PIN_C5, STN8815_PIN_B6 };
+/* Modem pins: DCD, DSR, RI, DTR */
+static const unsigned u0modem_a_1_pins[] = { STN8815_PIN_A4, STN8815_PIN_B5,
+       STN8815_PIN_D6, STN8815_PIN_C6 };
 static const unsigned mmcsd_a_1_pins[] = { STN8815_PIN_B10, STN8815_PIN_A10,
        STN8815_PIN_C11, STN8815_PIN_B11, STN8815_PIN_A11, STN8815_PIN_C12,
        STN8815_PIN_B12, STN8815_PIN_A12, STN8815_PIN_C13, STN8815_PIN_C15 };
@@ -290,7 +292,9 @@ static const unsigned i2cusb_b_1_pins[] = { STN8815_PIN_C21, STN8815_PIN_C20 };
                        .npins = ARRAY_SIZE(a##_pins), .altsetting = b }
 
 static const struct nmk_pingroup nmk_stn8815_groups[] = {
-       STN8815_PIN_GROUP(u0_a_1, NMK_GPIO_ALT_A),
+       STN8815_PIN_GROUP(u0txrx_a_1, NMK_GPIO_ALT_A),
+       STN8815_PIN_GROUP(u0ctsrts_a_1, NMK_GPIO_ALT_A),
+       STN8815_PIN_GROUP(u0modem_a_1, NMK_GPIO_ALT_A),
        STN8815_PIN_GROUP(mmcsd_a_1, NMK_GPIO_ALT_A),
        STN8815_PIN_GROUP(mmcsd_b_1, NMK_GPIO_ALT_B),
        STN8815_PIN_GROUP(u1_a_1, NMK_GPIO_ALT_A),
@@ -304,7 +308,7 @@ static const struct nmk_pingroup nmk_stn8815_groups[] = {
 #define STN8815_FUNC_GROUPS(a, b...)      \
 static const char * const a##_groups[] = { b };
 
-STN8815_FUNC_GROUPS(u0, "u0_a_1");
+STN8815_FUNC_GROUPS(u0, "u0txrx_a_1", "u0ctsrts_a_1", "u0modem_a_1");
 STN8815_FUNC_GROUPS(mmcsd, "mmcsd_a_1", "mmcsd_b_1");
 STN8815_FUNC_GROUPS(u1, "u1_a_1", "u1_b_1");
 STN8815_FUNC_GROUPS(i2c1, "i2c1_a_1");