ARM: SAMSUNG: Remove uart irq handling from plaform code

With uart tx/rx/err interrupt handling moved into the driver for s3c64xx
and later SoC's, the uart interrupt handling in plaform code can be removed.
The uart device irq resources is reduced to one and the related unused
macros are removed.

Suggested-by: Grant Likely <grant.likely@secretlab.ca>
CC: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 12 insertions, 142 deletions

diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig
index 9843c954c042..9a197e55f669 100644
--- a/arch/arm/plat-s5p/Kconfig
+++ b/arch/arm/plat-s5p/Kconfig
@@ -22,7 +22,6 @@ config PLAT_S5P
 	select PLAT_SAMSUNG
 	select SAMSUNG_CLKSRC
 	select SAMSUNG_IRQ_VIC_TIMER
-	select SAMSUNG_IRQ_UART
 	help
 	  Base platform code for Samsung's S5P series SoC.
 
diff --git a/arch/arm/plat-s5p/dev-uart.c b/arch/arm/plat-s5p/dev-uart.c
index afaf87fdb93e..c9308db36183 100644
--- a/arch/arm/plat-s5p/dev-uart.c
+++ b/arch/arm/plat-s5p/dev-uart.c
@@ -32,20 +32,10 @@ static struct resource s5p_uart0_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX0,
-		.end	= IRQ_S5P_UART_RX0,
+		.start	= IRQ_UART0,
+		.end	= IRQ_UART0,
 		.flags	= IORESOURCE_IRQ,
 	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX0,
-		.end	= IRQ_S5P_UART_TX0,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR0,
-		.end	= IRQ_S5P_UART_ERR0,
-		.flags	= IORESOURCE_IRQ,
-	}
 };
 
 static struct resource s5p_uart1_resource[] = {
@@ -55,18 +45,8 @@ static struct resource s5p_uart1_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX1,
-		.end	= IRQ_S5P_UART_RX1,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX1,
-		.end	= IRQ_S5P_UART_TX1,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR1,
-		.end	= IRQ_S5P_UART_ERR1,
+		.start	= IRQ_UART1,
+		.end	= IRQ_UART1,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -78,18 +58,8 @@ static struct resource s5p_uart2_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX2,
-		.end	= IRQ_S5P_UART_RX2,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX2,
-		.end	= IRQ_S5P_UART_TX2,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR2,
-		.end	= IRQ_S5P_UART_ERR2,
+		.start	= IRQ_UART2,
+		.end	= IRQ_UART2,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -102,18 +72,8 @@ static struct resource s5p_uart3_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX3,
-		.end	= IRQ_S5P_UART_RX3,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX3,
-		.end	= IRQ_S5P_UART_TX3,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR3,
-		.end	= IRQ_S5P_UART_ERR3,
+		.start	= IRQ_UART3,
+		.end	= IRQ_UART3,
 		.flags	= IORESOURCE_IRQ,
 	},
 #endif
@@ -127,18 +87,8 @@ static struct resource s5p_uart4_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX4,
-		.end	= IRQ_S5P_UART_RX4,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX4,
-		.end	= IRQ_S5P_UART_TX4,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR4,
-		.end	= IRQ_S5P_UART_ERR4,
+		.start	= IRQ_UART4,
+		.end	= IRQ_UART4,
 		.flags	= IORESOURCE_IRQ,
 	},
 #endif
@@ -152,18 +102,8 @@ static struct resource s5p_uart5_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX5,
-		.end	= IRQ_S5P_UART_RX5,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX5,
-		.end	= IRQ_S5P_UART_TX5,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR5,
-		.end	= IRQ_S5P_UART_ERR5,
+		.start	= IRQ_UART5,
+		.end	= IRQ_UART5,
 		.flags	= IORESOURCE_IRQ,
 	},
 #endif
diff --git a/arch/arm/plat-s5p/include/plat/irqs.h b/arch/arm/plat-s5p/include/plat/irqs.h
index ba9121c60a2a..144dbfc6506d 100644
--- a/arch/arm/plat-s5p/include/plat/irqs.h
+++ b/arch/arm/plat-s5p/include/plat/irqs.h
@@ -37,41 +37,6 @@
 #define IRQ_VIC1_BASE		S5P_VIC1_BASE
 #define IRQ_VIC2_BASE		S5P_VIC2_BASE
 
-/* UART interrupts, each UART has 4 intterupts per channel so
- * use the space between the ISA and S3C main interrupts. Note, these
- * are not in the same order as the S3C24XX series! */
-
-#define IRQ_S5P_UART_BASE0	(16)
-#define IRQ_S5P_UART_BASE1	(20)
-#define IRQ_S5P_UART_BASE2	(24)
-#define IRQ_S5P_UART_BASE3	(28)
-
-#define UART_IRQ_RXD		(0)
-#define UART_IRQ_ERR		(1)
-#define UART_IRQ_TXD		(2)
-
-#define IRQ_S5P_UART_RX0	(IRQ_S5P_UART_BASE0 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX0	(IRQ_S5P_UART_BASE0 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR0	(IRQ_S5P_UART_BASE0 + UART_IRQ_ERR)
-
-#define IRQ_S5P_UART_RX1	(IRQ_S5P_UART_BASE1 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX1	(IRQ_S5P_UART_BASE1 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR1	(IRQ_S5P_UART_BASE1 + UART_IRQ_ERR)
-
-#define IRQ_S5P_UART_RX2	(IRQ_S5P_UART_BASE2 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX2	(IRQ_S5P_UART_BASE2 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR2	(IRQ_S5P_UART_BASE2 + UART_IRQ_ERR)
-
-#define IRQ_S5P_UART_RX3	(IRQ_S5P_UART_BASE3 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX3	(IRQ_S5P_UART_BASE3 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR3	(IRQ_S5P_UART_BASE3 + UART_IRQ_ERR)
-
-/* S3C compatibilty defines */
-#define IRQ_S3CUART_RX0		IRQ_S5P_UART_RX0
-#define IRQ_S3CUART_RX1		IRQ_S5P_UART_RX1
-#define IRQ_S3CUART_RX2		IRQ_S5P_UART_RX2
-#define IRQ_S3CUART_RX3		IRQ_S5P_UART_RX3
-
 /* VIC based IRQs */
 
 #define S5P_IRQ_VIC0(x)		(S5P_VIC0_BASE + (x))
diff --git a/arch/arm/plat-s5p/irq.c b/arch/arm/plat-s5p/irq.c
index a97c08957f49..afdaa1082b9f 100644
--- a/arch/arm/plat-s5p/irq.c
+++ b/arch/arm/plat-s5p/irq.c
@@ -17,42 +17,10 @@
 
 #include <asm/hardware/vic.h>
 
-#include <linux/serial_core.h>
 #include <mach/map.h>
 #include <plat/regs-timer.h>
-#include <plat/regs-serial.h>
 #include <plat/cpu.h>
 #include <plat/irq-vic-timer.h>
-#include <plat/irq-uart.h>
-
-/*
- * Note, we make use of the fact that the parent IRQs, IRQ_UART[0..3]
- * are consecutive when looking up the interrupt in the demux routines.
- */
-static struct s3c_uart_irq uart_irqs[] = {
-	[0] = {
-		.regs		= S5P_VA_UART0,
-		.base_irq	= IRQ_S5P_UART_BASE0,
-		.parent_irq	= IRQ_UART0,
-	},
-	[1] = {
-		.regs		= S5P_VA_UART1,
-		.base_irq	= IRQ_S5P_UART_BASE1,
-		.parent_irq	= IRQ_UART1,
-	},
-	[2] = {
-		.regs		= S5P_VA_UART2,
-		.base_irq	= IRQ_S5P_UART_BASE2,
-		.parent_irq	= IRQ_UART2,
-	},
-#if CONFIG_SERIAL_SAMSUNG_UARTS > 3
-	[3] = {
-		.regs		= S5P_VA_UART3,
-		.base_irq	= IRQ_S5P_UART_BASE3,
-		.parent_irq	= IRQ_UART3,
-	},
-#endif
-};
 
 void __init s5p_init_irq(u32 *vic, u32 num_vic)
 {
@@ -65,6 +33,4 @@ void __init s5p_init_irq(u32 *vic, u32 num_vic)
 #endif
 
 	s3c_init_vic_timer_irq(5, IRQ_TIMER0);
-
-	s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
 }