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Date:   Tue, 28 Sep 2021 17:07:34 -0700
From:   Saravana Kannan <saravanak@...gle.com>
To:     Russell King <linux@...linux.org.uk>,
        Neil Armstrong <narmstrong@...libre.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Tony Lindgren <tony@...mide.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Damien Le Moal <damien.lemoal@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Saravana Kannan <saravanak@...gle.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, kernel-team@...roid.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-oxnas@...ups.io, linux-renesas-soc@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: [PATCH v4 2/2] drivers: bus: Delete CONFIG_SIMPLE_PM_BUS

The simple-pm-bus driver is mandatory for CONFIG_OF based platforms to work
with fw_devlink. So, always compile it in for CONFIG_OF and delete the
config since it's no longer necessary.

Signed-off-by: Saravana Kannan <saravanak@...gle.com>
Tested-by: Ulf Hansson <ulf.hansson@...aro.org>
---
 arch/arm/configs/multi_v7_defconfig |  1 -
 arch/arm/configs/oxnas_v6_defconfig |  1 -
 arch/arm/configs/shmobile_defconfig |  1 -
 arch/arm/mach-omap2/Kconfig         |  1 -
 arch/arm64/configs/defconfig        |  1 -
 drivers/bus/Kconfig                 | 12 ------------
 drivers/bus/Makefile                |  2 +-
 drivers/soc/canaan/Kconfig          |  1 -
 8 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index d9abaae118dd..362720ae8d65 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -196,7 +196,6 @@ CONFIG_PCI_EPF_TEST=m
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_OMAP_OCP2SCP=y
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y
diff --git a/arch/arm/configs/oxnas_v6_defconfig b/arch/arm/configs/oxnas_v6_defconfig
index cae0db6b4eaf..de37f7e90999 100644
--- a/arch/arm/configs/oxnas_v6_defconfig
+++ b/arch/arm/configs/oxnas_v6_defconfig
@@ -46,7 +46,6 @@ CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DMA_CMA=y
 CONFIG_CMA_SIZE_MBYTES=64
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y
diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index d9a27e4e0914..18d2a960b2d2 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -40,7 +40,6 @@ CONFIG_PCI_RCAR_GEN2=y
 CONFIG_PCIE_RCAR_HOST=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 7df8f5276ddf..02f2f3157f07 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -112,7 +112,6 @@ config ARCH_OMAP2PLUS
 	select PM_GENERIC_DOMAINS
 	select PM_GENERIC_DOMAINS_OF
 	select RESET_CONTROLLER
-	select SIMPLE_PM_BUS
 	select SOC_BUS
 	select TI_SYSC
 	select OMAP_IRQCHIP
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index f423d08b9a71..474b1f2e3f06 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -245,7 +245,6 @@ CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_FW_LOADER_USER_HELPER=y
 CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
 CONFIG_HISILICON_LPC=y
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_FSL_MC_BUS=y
 CONFIG_TEGRA_ACONNECT=m
 CONFIG_GNSS=m
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index e7f7eee6ee9a..dc3801369488 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -141,18 +141,6 @@ config QCOM_EBI2
 	  Interface 2, which can be used to connect things like NAND Flash,
 	  SRAM, ethernet adapters, FPGAs and LCD displays.
 
-config SIMPLE_PM_BUS
-	tristate "Simple Power-Managed Bus Driver"
-	depends on OF && PM
-	help
-	  Driver for transparent busses that don't need a real driver, but
-	  where the bus controller is part of a PM domain, or under the control
-	  of a functional clock, and thus relies on runtime PM for managing
-	  this PM domain and/or clock.
-	  An example of such a bus controller is the Renesas Bus State
-	  Controller (BSC, sometimes called "LBSC within Bus Bridge", or
-	  "External Bus Interface") as found on several Renesas ARM SoCs.
-
 config SUN50I_DE2_BUS
 	bool "Allwinner A64 DE2 Bus Driver"
 	  default ARM64
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
index 397e35392bff..86aacd36a56d 100644
--- a/drivers/bus/Makefile
+++ b/drivers/bus/Makefile
@@ -26,7 +26,7 @@ obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
 obj-$(CONFIG_QCOM_EBI2)		+= qcom-ebi2.o
 obj-$(CONFIG_SUN50I_DE2_BUS)	+= sun50i-de2.o
 obj-$(CONFIG_SUNXI_RSB)		+= sunxi-rsb.o
-obj-$(CONFIG_SIMPLE_PM_BUS)	+= simple-pm-bus.o
+obj-$(CONFIG_OF)		+= simple-pm-bus.o
 obj-$(CONFIG_TEGRA_ACONNECT)	+= tegra-aconnect.o
 obj-$(CONFIG_TEGRA_GMI)		+= tegra-gmi.o
 obj-$(CONFIG_TI_PWMSS)		+= ti-pwmss.o
diff --git a/drivers/soc/canaan/Kconfig b/drivers/soc/canaan/Kconfig
index 8179b69518b4..853096b7e84c 100644
--- a/drivers/soc/canaan/Kconfig
+++ b/drivers/soc/canaan/Kconfig
@@ -5,7 +5,6 @@ config SOC_K210_SYSCTL
 	depends on RISCV && SOC_CANAAN && OF
 	default SOC_CANAAN
         select PM
-        select SIMPLE_PM_BUS
         select SYSCON
         select MFD_SYSCON
 	help
-- 
2.33.0.685.g46640cef36-goog

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