[PATCH v2] sandbox: Fix pinmux warnings with non-test devicetrees

[Sean Anderson]

The sandbox pinmux driver is used in the non-test devicetree as well as
the test one. I didn't realize this when I modified the driver for
tests, and so broke the regular use case (which only resulted in
warnings). First, making the pinmux and the UART group available in all
boot phases to avoid ENODEV errors. Then, convert the pin groups and
functions to the new style, adding onewire group as well.

Fixes: 7f0f1806e3a ("test: pinmux: Add test for pin muxing")
Closes: https://source.denx.de/u-boot/u-boot/-/issues/2 Please enter the commit message for your changes. Lines starting
Signed-off-by: Sean Anderson <seanga2 at gmail.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Only add the pinctrl node pre-relocation, as SPL/VPL try to run dtoc on all
  nodes included in their device trees.

 arch/sandbox/dts/sandbox.dtsi                | 14 ++++++++------
 drivers/pinctrl/pinctrl-sandbox.c            |  4 +++-
 include/dt-bindings/pinctrl/sandbox-pinmux.h |  1 +
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index c93ce712894..8a115c503dc 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -231,23 +231,25 @@
 	};
 
 	pinctrl {
+		bootph-some-ram;
 		compatible = "sandbox,pinctrl";
 		status = "okay";
 
 		pinctrl_i2c0: i2c0 {
-			groups = "i2c";
-			function = "i2c";
+			groups = "I2C_UART";
+			function = "I2C";
 			bias-pull-up;
 		};
 
 		pinctrl_serial0: uart0 {
-			groups = "serial_a";
-			function = "serial";
+			bootph-some-ram;
+			groups = "I2C_UART";
+			function = "UART";
 		};
 
 		pinctrl_onewire0: onewire0 {
-			groups = "w1";
-			function = "w1";
+			pins = "P8";
+			function = "ONEWIRE";
 			bias-pull-up;
 		};
 	};
diff --git a/drivers/pinctrl/pinctrl-sandbox.c b/drivers/pinctrl/pinctrl-sandbox.c
index a5d056643a0..f6921b56ceb 100644
--- a/drivers/pinctrl/pinctrl-sandbox.c
+++ b/drivers/pinctrl/pinctrl-sandbox.c
@@ -42,7 +42,7 @@ static const char * const sandbox_pins_muxing[][2] = {
 	{ "GPIO0", "SPI CS0" },
 	{ "GPIO1", "SPI CS1" },
 	{ "GPIO2", "PWM0" },
-	{ "GPIO3", "PWM1" },
+	{ "GPIO3", "ONEWIRE" },
 };
 
 #define SANDBOX_GROUP_I2C_UART 0
@@ -63,6 +63,7 @@ static const char * const sandbox_functions[] = {
 	FUNC(GPIO),
 	FUNC(CS),
 	FUNC(PWM),
+	FUNC(ONEWIRE),
 #undef FUNC
 };
 
@@ -166,6 +167,7 @@ static int sandbox_pinmux_set(struct udevice *dev, unsigned pin_selector,
 		break;
 	case SANDBOX_PINMUX_CS:
 	case SANDBOX_PINMUX_PWM:
+	case SANDBOX_PINMUX_ONEWIRE:
 		mux = BIT(pin_selector);
 		break;
 	default:
diff --git a/include/dt-bindings/pinctrl/sandbox-pinmux.h b/include/dt-bindings/pinctrl/sandbox-pinmux.h
index 891af072e52..21c5a1762ab 100644
--- a/include/dt-bindings/pinctrl/sandbox-pinmux.h
+++ b/include/dt-bindings/pinctrl/sandbox-pinmux.h
@@ -13,6 +13,7 @@
 #define SANDBOX_PINMUX_GPIO 4
 #define SANDBOX_PINMUX_CS   5
 #define SANDBOX_PINMUX_PWM  6
+#define SANDBOX_PINMUX_ONEWIRE 7
 
 #define SANDBOX_PINMUX(pin, func) ((func) << 16 | (pin))
 
-- 
2.37.1