[PATCH 17/34] pinctrl: sunxi: add Allwinner A523 pinctrl description

[Andre Przywara <andre.przywara@arm.com>]

The new DT pinctrl binding would allow us to read the pinmux values from
the DT, but it is actually easier to just continue with hardcoding the
mux values in the driver, and matching them against the "function" name.

Add the values for the primary and secondary pin controller on the A523.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 drivers/pinctrl/sunxi/Kconfig         | 10 ++++++
 drivers/pinctrl/sunxi/pinctrl-sunxi.c | 49 +++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)

diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
index 65e8192a99a..54314992299 100644
--- a/drivers/pinctrl/sunxi/Kconfig
+++ b/drivers/pinctrl/sunxi/Kconfig
@@ -139,4 +139,14 @@ config PINCTRL_SUN20I_D1
 	default MACH_SUN8I_R528
 	select PINCTRL_SUNXI
 
+config PINCTRL_SUN55I_A523
+	bool "Support for the Allwinner A523 PIO"
+	default MACH_SUN55I_A523
+	select PINCTRL_SUNXI
+
+config PINCTRL_SUN55I_A523_R
+	bool "Support for the Allwinner A523 R-PIO"
+	default MACH_SUN55I_A523
+	select PINCTRL_SUNXI
+
 endif
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index c38edf7d4f5..46b266a3a1d 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -759,6 +759,29 @@ static const struct sunxi_pinctrl_desc __maybe_unused sun50i_h616_pinctrl_desc =
 	.num_banks	= 9,
 };
 
+static const struct sunxi_pinctrl_function sun55i_a523_pinctrl_functions[] = {
+	{ "emac0",	5 },	/* PI0-PI16 */
+	{ "gpio_in",	0 },
+	{ "gpio_out",	1 },
+	{ "mmc0",	2 },	/* PF0-PF5 */
+	{ "mmc1",	2 },	/* PG0-PG5 */
+	{ "mmc2",	3 },	/* PC0-PC16 */
+	{ "spi0",	4 },	/* PC0-PC7, PC15-PC16 */
+#if IS_ENABLED(CONFIG_UART0_PORT_F)
+	{ "uart0",	3 },	/* PF2-PF4 */
+#else
+	{ "uart0",	2 },	/* PH0-PH1 */
+#endif
+	{ "uart1",	2 },	/* PG6-PG7 */
+};
+
+static const struct sunxi_pinctrl_desc __maybe_unused sun55i_a523_pinctrl_desc = {
+	.functions	= sun55i_a523_pinctrl_functions,
+	.num_functions	= ARRAY_SIZE(sun55i_a523_pinctrl_functions),
+	.first_bank	= SUNXI_GPIO_A,
+	.num_banks	= 11,
+};
+
 static const struct sunxi_pinctrl_function sun50i_h616_r_pinctrl_functions[] = {
 	{ "gpio_in",	0 },
 	{ "gpio_out",	1 },
@@ -809,6 +832,20 @@ static const struct sunxi_pinctrl_desc __maybe_unused sun50i_a100_r_pinctrl_desc
 	.num_banks	= 1,
 };
 
+static const struct sunxi_pinctrl_function sun55i_a523_r_pinctrl_functions[] = {
+	{ "gpio_in",	0 },
+	{ "gpio_out",	1 },
+	{ "s_i2c",	2 },	/* PL0-PL1 */
+	{ "s_uart",	2 },	/* PL2-PL3 */
+};
+
+static const struct sunxi_pinctrl_desc __maybe_unused sun55i_a523_r_pinctrl_desc = {
+	.functions	= sun55i_a523_r_pinctrl_functions,
+	.num_functions	= ARRAY_SIZE(sun55i_a523_r_pinctrl_functions),
+	.first_bank	= SUNXI_GPIO_L,
+	.num_banks	= 2,
+};
+
 static const struct udevice_id sunxi_pinctrl_ids[] = {
 #ifdef CONFIG_PINCTRL_SUNIV_F1C100S
 	{
@@ -983,6 +1020,18 @@ static const struct udevice_id sunxi_pinctrl_ids[] = {
 		.compatible = "allwinner,sun50i-a100-r-pinctrl",
 		.data = (ulong)&sun50i_a100_r_pinctrl_desc,
 	},
+#endif
+#ifdef CONFIG_PINCTRL_SUN55I_A523
+	{
+		.compatible = "allwinner,sun55i-a523-pinctrl",
+		.data = (ulong)&sun55i_a523_pinctrl_desc,
+	},
+#endif
+#ifdef CONFIG_PINCTRL_SUN55I_A523_R
+	{
+		.compatible = "allwinner,sun55i-a523-r-pinctrl",
+		.data = (ulong)&sun55i_a523_r_pinctrl_desc,
+	},
 #endif
 	{}
 };
-- 
2.46.3