pinctrl: sun6i: add SPDIF to pin description.

Add the SPDIF mux functionality to the pinctrl for the Allwinner A31
SoC.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c b/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c
index 022863a..a70b529 100644 (file)
--- a/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c
@@ -896,10 +896,18 @@ static const struct sunxi_desc_pin sun6i_a31_pins[] = {
                  SUNXI_FUNCTION(0x1, "gpio_out")),
        SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 27),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
-                 SUNXI_FUNCTION(0x1, "gpio_out")),
+                 SUNXI_FUNCTION(0x1, "gpio_out"),
+               /*
+                * The SPDIF block is not referenced at all in the A31 user
+                * manual. However it is described in the code leaked and the
+                * configuration files supplied by vendors.
+                */
+                 SUNXI_FUNCTION(0x3, "spdif")),        /* SPDIF IN */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 28),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
-                 SUNXI_FUNCTION(0x1, "gpio_out")),
+                 SUNXI_FUNCTION(0x1, "gpio_out"),
+               /* Undocumented mux function - see above */
+                 SUNXI_FUNCTION(0x3, "spdif")),        /* SPDIF OUT */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 29),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),