[PATCH V10 1/7] clk: imx: add configuration option for mmio clks

[Aisheng Dong <aisheng.dong@nxp.com>]

The patch introduces CONFIG_MXC_CLK option for legacy MMIO clocks,
this is required to compile legacy MMIO clock conditionally when adding
SCU based clocks for MX8 platforms later.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
---
v1->v10: no changes
---
 arch/arm/mach-imx/Kconfig | 11 +++++++++++
 drivers/clk/Kconfig       |  1 +
 drivers/clk/imx/Kconfig   |  5 +++++
 drivers/clk/imx/Makefile  |  2 +-
 4 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 drivers/clk/imx/Kconfig

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index abc3371..11a9661 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -57,23 +57,27 @@ config SOC_IMX21
 	select CPU_ARM926T
 	select IMX_HAVE_IOMUX_V1
 	select MXC_AVIC
+	select MXC_CLK
 
 config SOC_IMX27
 	bool
 	select CPU_ARM926T
 	select IMX_HAVE_IOMUX_V1
 	select MXC_AVIC
+	select MXC_CLK
 	select PINCTRL_IMX27
 
 config SOC_IMX31
 	bool
 	select CPU_V6
 	select MXC_AVIC
+	select MXC_CLK
 
 config SOC_IMX35
 	bool
 	select ARCH_MXC_IOMUX_V3
 	select MXC_AVIC
+	select MXC_CLK
 	select PINCTRL_IMX35
 
 if ARCH_MULTI_V5
@@ -417,6 +421,7 @@ config SOC_IMX1
 	bool "i.MX1 support"
 	select CPU_ARM920T
 	select MXC_AVIC
+	select MXC_CLK
 	select PINCTRL_IMX1
 	help
 	  This enables support for Freescale i.MX1 processor
@@ -430,6 +435,7 @@ config SOC_IMX25
 	select ARCH_MXC_IOMUX_V3
 	select CPU_ARM926T
 	select MXC_AVIC
+	select MXC_CLK
 	select PINCTRL_IMX25
 	help
 	  This enables support for Freescale i.MX25 processor
@@ -442,6 +448,7 @@ comment "Cortex-A platforms"
 config SOC_IMX5
 	bool
 	select HAVE_IMX_SRC
+	select MXC_CLK
 	select MXC_TZIC
 
 config	SOC_IMX50
@@ -478,6 +485,7 @@ config SOC_IMX6
 	select HAVE_IMX_MMDC
 	select HAVE_IMX_SRC
 	select MFD_SYSCON
+	select MXC_CLK
 	select PL310_ERRATA_769419 if CACHE_L2X0
 
 config SOC_IMX6Q
@@ -545,10 +553,12 @@ config SOC_IMX7D_CA7
 	select HAVE_IMX_MMDC
 	select HAVE_IMX_SRC
 	select IMX_GPCV2
+	select MXC_CLK
 
 config SOC_IMX7D_CM4
 	bool
 	select ARMV7M_SYSTICK
+	select MXC_CLK
 
 config SOC_IMX7D
 	bool "i.MX7 Dual support"
@@ -561,6 +571,7 @@ config SOC_IMX7D
 config SOC_VF610
 	bool "Vybrid Family VF610 support"
 	select ARM_GIC if ARCH_MULTI_V7
+	select MXC_CLK
 	select PINCTRL_VF610
 
 	help
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 2dc12bf..d2f0bb5 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -294,6 +294,7 @@ source "drivers/clk/actions/Kconfig"
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
 source "drivers/clk/imgtec/Kconfig"
+source "drivers/clk/imx/Kconfig"
 source "drivers/clk/ingenic/Kconfig"
 source "drivers/clk/keystone/Kconfig"
 source "drivers/clk/mediatek/Kconfig"
diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
new file mode 100644
index 0000000..43a3ecc
--- /dev/null
+++ b/drivers/clk/imx/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+# common clock support for NXP i.MX SoC family.
+config MXC_CLK
+	bool
+	depends on ARCH_MXC
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 5c0b11e..f850424 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 
-obj-y += \
+obj-$(CONFIG_MXC_CLK) += \
 	clk.o \
 	clk-busy.o \
 	clk-composite-8m.o \
-- 
2.7.4