pinctrl: sunxi: h6-r: Add s_rsb pin functions

As there is an RSB controller in the H6 SoC, there should be some pin
configuration for it. While no such configuration is documented, the
"s_i2c" pins are suspiciously on the "alternate" function 3, with no
primary function 2 given. This suggests the primary function for these
pins is actually RSB, and that is indeed the case.

Add the "s_rsb" pin functions so the RSB controller can be used.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20210103100007.32867-3-samuel@sholland.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c b/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c
index 4557e18..c7d90c4 100644 (file)
--- a/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c
@@ -24,11 +24,13 @@ static const struct sunxi_desc_pin sun50i_h6_r_pins[] = {
        SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
+                 SUNXI_FUNCTION(0x2, "s_rsb"),         /* SCK */
                  SUNXI_FUNCTION(0x3, "s_i2c"),         /* SCK */
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)),  /* PL_EINT0 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
+                 SUNXI_FUNCTION(0x2, "s_rsb"),         /* SDA */
                  SUNXI_FUNCTION(0x3, "s_i2c"),         /* SDA */
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)),  /* PL_EINT1 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),