[PATCH 14/20] dm: Add a test for of-platdata parent information

[Simon Glass]

Add a simple test that we can obtain the correct parent for an I2C
device. This requires updating the driver names to match the compatible
strings, adding them to the devicetree and enabling a few options.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 arch/sandbox/dts/sandbox.dts  |  1 +
 arch/sandbox/dts/sandbox.dtsi |  1 +
 configs/sandbox_spl_defconfig |  4 +++-
 drivers/i2c/sandbox_i2c.c     |  4 ++--
 drivers/rtc/sandbox_rtc.c     |  4 ++--
 test/dm/of_platdata.c         | 15 +++++++++++++++
 6 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index 20f68938297..8b50a402898 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -69,6 +69,7 @@
 		clock-frequency = <400000>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_i2c0>;
+		u-boot,dm-pre-reloc;
 	};
 
 	pcic: pci at 0 {
diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index ca7049fc974..2ec43b009bc 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -90,6 +90,7 @@
 			reg = <0x43>;
 			compatible = "sandbox-rtc";
 			sandbox,emul = <&emul0>;
+			u-boot,dm-pre-reloc;
 		};
 		sandbox_pmic: sandbox_pmic {
 			reg = <0x40>;
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig
index 91215d23a0f..0cf8cf76577 100644
--- a/configs/sandbox_spl_defconfig
+++ b/configs/sandbox_spl_defconfig
@@ -26,6 +26,8 @@ CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_HANDOFF=y
 CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_ENV_SUPPORT=y
+CONFIG_SPL_I2C_SUPPORT=y
+CONFIG_SPL_RTC_SUPPORT=y
 CONFIG_CMD_CPU=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_BOOTZ=y
@@ -120,7 +122,6 @@ CONFIG_I2C_CROS_EC_LDO=y
 CONFIG_DM_I2C_GPIO=y
 CONFIG_SYS_I2C_SANDBOX=y
 CONFIG_I2C_MUX=y
-CONFIG_SPL_I2C_MUX=y
 CONFIG_I2C_ARB_GPIO_CHALLENGE=y
 CONFIG_CROS_EC_KEYB=y
 CONFIG_I8042_KEYB=y
@@ -187,6 +188,7 @@ CONFIG_REMOTEPROC_SANDBOX=y
 CONFIG_DM_RESET=y
 CONFIG_SANDBOX_RESET=y
 CONFIG_DM_RTC=y
+CONFIG_SPL_DM_RTC=y
 CONFIG_SANDBOX_SERIAL=y
 CONFIG_SOUND=y
 CONFIG_SOUND_SANDBOX=y
diff --git a/drivers/i2c/sandbox_i2c.c b/drivers/i2c/sandbox_i2c.c
index 57b1c60fde6..2cbdaf9cc73 100644
--- a/drivers/i2c/sandbox_i2c.c
+++ b/drivers/i2c/sandbox_i2c.c
@@ -93,8 +93,8 @@ static const struct udevice_id sandbox_i2c_ids[] = {
 	{ }
 };
 
-U_BOOT_DRIVER(i2c_sandbox) = {
-	.name	= "i2c_sandbox",
+U_BOOT_DRIVER(sandbox_i2c) = {
+	.name	= "sandbox_i2c",
 	.id	= UCLASS_I2C,
 	.of_match = sandbox_i2c_ids,
 	.ops	= &sandbox_i2c_ops,
diff --git a/drivers/rtc/sandbox_rtc.c b/drivers/rtc/sandbox_rtc.c
index 852770a49cf..d0864b1df97 100644
--- a/drivers/rtc/sandbox_rtc.c
+++ b/drivers/rtc/sandbox_rtc.c
@@ -92,8 +92,8 @@ static const struct udevice_id sandbox_rtc_ids[] = {
 	{ }
 };
 
-U_BOOT_DRIVER(rtc_sandbox) = {
-	.name	= "rtc-sandbox",
+U_BOOT_DRIVER(sandbox_rtc) = {
+	.name	= "sandbox_rtc",
 	.id	= UCLASS_RTC,
 	.of_match = sandbox_rtc_ids,
 	.ops	= &sandbox_rtc_ops,
diff --git a/test/dm/of_platdata.c b/test/dm/of_platdata.c
index e827d45ffb7..bad733fbee0 100644
--- a/test/dm/of_platdata.c
+++ b/test/dm/of_platdata.c
@@ -205,3 +205,18 @@ static int dm_test_of_platdata_phandle(struct unit_test_state *uts)
 	return 0;
 }
 DM_TEST(dm_test_of_platdata_phandle, UT_TESTF_SCAN_PDATA);
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA_PARENT)
+/* Test that device parents are correctly set up */
+static int dm_test_of_platdata_parent(struct unit_test_state *uts)
+{
+	struct udevice *rtc, *i2c;
+
+	ut_assertok(uclass_first_device_err(UCLASS_RTC, &rtc));
+	ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
+	ut_asserteq_ptr(i2c, dev_get_parent(rtc));
+
+	return 0;
+}
+DM_TEST(dm_test_of_platdata_parent, UT_TESTF_SCAN_PDATA);
+#endif
-- 
2.28.0.806.g8561365e88-goog