From 07ea02bc2dd17a75ec04c5f4ba10b0088f1596d5 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 15 Apr 2019 11:32:21 +0200
Subject: [PATCH] ARM: tegra: Guard pin controller code with a Kconfig symbol

Pin controller code is not relevant on all Tegra SoC generations, so
guard it with a Kconfig symbol that can be selected by the generations
that need it.

This is in preparation for unifying Tegra186 code with the code used on
older generations.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---
 arch/arm/mach-tegra/Kconfig  | 5 +++++
 arch/arm/mach-tegra/Makefile | 2 +-
 arch/arm/mach-tegra/board.c  | 6 ++++++
 arch/arm/mach-tegra/board2.c | 2 ++
 4 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 5763c4a..be20ac2 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -29,6 +29,9 @@ config TEGRA_IVC
 config TEGRA_MC
 	bool
 
+config TEGRA_PINCTRL
+	bool
+
 config TEGRA_COMMON
 	bool "Tegra common options"
 	select BINMAN
@@ -70,6 +73,7 @@ config TEGRA_ARMV7_COMMON
 	select TEGRA_GP_PADCTRL
 	select TEGRA_MC
 	select TEGRA_NO_BPMP
+	select TEGRA_PINCTRL
 
 config TEGRA_ARMV8_COMMON
 	bool "Tegra 64-bit common options"
@@ -117,6 +121,7 @@ config TEGRA210
 	select TEGRA_GP_PADCTRL
 	select TEGRA_MC
 	select TEGRA_NO_BPMP
+	select TEGRA_PINCTRL
 
 config TEGRA186
 	bool "Tegra186 family"
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 69f802c..395e019 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -17,7 +17,7 @@ obj-$(CONFIG_TEGRA_GP_PADCTRL) += ap.o
 obj-y += board.o board2.o
 obj-y += cache.o
 obj-$(CONFIG_TEGRA_CLKRST) += clock.o
-obj-y += pinmux-common.o
+obj-$(CONFIG_TEGRA_PINCTRL) += pinmux-common.o
 obj-y += powergate.o
 obj-y += xusb-padctl-dummy.o
 endif
diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c
index a9e26bd..fd23de1 100644
--- a/arch/arm/mach-tegra/board.c
+++ b/arch/arm/mach-tegra/board.c
@@ -12,7 +12,9 @@
 #if IS_ENABLED(CONFIG_TEGRA_CLKRST)
 #include <asm/arch/clock.h>
 #endif
+#if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
 #include <asm/arch/funcmux.h>
+#endif
 #if IS_ENABLED(CONFIG_TEGRA_MC)
 #include <asm/arch/mc.h>
 #endif
@@ -132,6 +134,7 @@ int dram_init(void)
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
 static int uart_configs[] = {
 #if defined(CONFIG_TEGRA20)
  #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
@@ -199,9 +202,11 @@ static void setup_uarts(int uart_ids)
 		}
 	}
 }
+#endif
 
 void board_init_uart_f(void)
 {
+#if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
 	int uart_ids = 0;	/* bit mask of which UART ids to enable */
 
 #ifdef CONFIG_TEGRA_ENABLE_UARTA
@@ -220,6 +225,7 @@ void board_init_uart_f(void)
 	uart_ids |= UARTE;
 #endif
 	setup_uarts(uart_ids);
+#endif
 }
 
 #if !CONFIG_IS_ENABLED(OF_CONTROL)
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index b940772..ce1c934 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -25,8 +25,10 @@
 #if IS_ENABLED(CONFIG_TEGRA_CLKRST)
 #include <asm/arch/clock.h>
 #endif
+#if IS_ENABLED(CONFIG_TEGRA_PINCTRL)
 #include <asm/arch/funcmux.h>
 #include <asm/arch/pinmux.h>
+#endif
 #include <asm/arch/tegra.h>
 #ifdef CONFIG_TEGRA_CLOCK_SCALING
 #include <asm/arch/emc.h>
-- 
2.7.4