[U-Boot] [PATCH v2 2/3] sysreset: move stm32mp sysreset poweroff implementation to sysreset uclass

[Urja Rannikko <urjaman@gmail.com>]

This is a generic implementation. Add CONFIG_SYSRESET_CMD_POWEROFF
to signal when we need it. Enable it from the STPMIC1 config and in
sandbox.

The config flag is transitionary, that is it can be removed after all
poweroff implementations use sysreset, and just have CMD_POWEROFF depend
on sysreset.

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
---
v2: Fixup STPMIC1 config selection of CONFIG_SYSRESET_CMD_POWEROFF
---
 arch/Kconfig                         |  1 +
 arch/arm/mach-stm32mp/Makefile       |  3 ---
 arch/arm/mach-stm32mp/cmd_poweroff.c | 24 ------------------------
 drivers/power/pmic/Kconfig           |  1 +
 drivers/sysreset/Kconfig             | 10 ++++++++++
 drivers/sysreset/sysreset-uclass.c   | 18 ++++++++++++++++++
 6 files changed, 30 insertions(+), 27 deletions(-)
 delete mode 100644 arch/arm/mach-stm32mp/cmd_poweroff.c

diff --git a/arch/Kconfig b/arch/Kconfig
index 239289b885..83ff21dfd7 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -91,6 +91,7 @@ config SANDBOX
 	select LZO
 	select SPI
 	select SUPPORT_OF_CONTROL
+	select SYSRESET_CMD_POWEROFF if CMD_POWEROFF
 	imply BITREVERSE
 	select BLOBLIST
 	imply CMD_DM
diff --git a/arch/arm/mach-stm32mp/Makefile b/arch/arm/mach-stm32mp/Makefile
index 1493914a11..f59ced5ee1 100644
--- a/arch/arm/mach-stm32mp/Makefile
+++ b/arch/arm/mach-stm32mp/Makefile
@@ -11,9 +11,6 @@ ifdef CONFIG_SPL_BUILD
 obj-y += spl.o
 else
 obj-y += bsec.o
-ifndef CONFIG_STM32MP1_TRUSTED
-obj-$(CONFIG_SYSRESET) += cmd_poweroff.o
-endif
 endif
 obj-$(CONFIG_ARMV7_PSCI) += psci.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR) += pwr_regulator.o
diff --git a/arch/arm/mach-stm32mp/cmd_poweroff.c b/arch/arm/mach-stm32mp/cmd_poweroff.c
deleted file mode 100644
index 62347425a0..0000000000
--- a/arch/arm/mach-stm32mp/cmd_poweroff.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
-/*
- * Copyright (C) 2019, STMicroelectronics - All Rights Reserved
- */
-
-#include <common.h>
-#include <command.h>
-#include <sysreset.h>
-
-int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
-	int ret;
-
-	puts("poweroff ...\n");
-	mdelay(100);
-
-	ret = sysreset_walk(SYSRESET_POWER_OFF);
-
-	if (ret == -EINPROGRESS)
-		mdelay(1000);
-
-	/*NOTREACHED when power off*/
-	return CMD_RET_FAILURE;
-}
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index b0cd260354..52edb29b48 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -234,6 +234,7 @@ config DM_PMIC_TPS65910
 config PMIC_STPMIC1
 	bool "Enable support for STMicroelectronics STPMIC1 PMIC"
 	depends on DM_PMIC && DM_I2C
+	select SYSRESET_CMD_POWEROFF if CMD_POWEROFF && !ARM_PSCI_FW
 	---help---
 	The STPMIC1 PMIC provides 4 BUCKs, 6 LDOs, 1 VREF and 2 power switches.
 	It is accessed via an I2C interface. The device is used with STM32MP1
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index 30aed2c4c1..4c883923bf 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -33,6 +33,16 @@ config TPL_SYSRESET
 
 if SYSRESET
 
+if CMD_POWEROFF
+
+config SYSRESET_CMD_POWEROFF
+	bool "sysreset implementation of the poweroff command"
+	help
+	  This should be selected by the appropriate PMIC driver if
+	  the poweroff command is enabled.
+
+endif
+
 config SYSRESET_GPIO
 	bool "Enable support for GPIO reset driver"
 	select DM_GPIO
diff --git a/drivers/sysreset/sysreset-uclass.c b/drivers/sysreset/sysreset-uclass.c
index ad831c703a..39202588ae 100644
--- a/drivers/sysreset/sysreset-uclass.c
+++ b/drivers/sysreset/sysreset-uclass.c
@@ -118,6 +118,24 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_SYSRESET_CMD_POWEROFF)
+int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int ret;
+
+	puts("poweroff ...\n");
+	mdelay(100);
+
+	ret = sysreset_walk(SYSRESET_POWER_OFF);
+
+	if (ret == -EINPROGRESS)
+		mdelay(1000);
+
+	/*NOTREACHED when power off*/
+	return CMD_RET_FAILURE;
+}
+#endif
+
 static int sysreset_post_bind(struct udevice *dev)
 {
 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
-- 
2.21.0