ARM: OMAP2+: UART: Move errata handling from serial.c to omap-serial

Move the errata handling mechanism from serial.c to omap-serial file
and utilise the same func in driver file.

Errata i202, i291 are moved to be handled with omap-serial
Moving the errata macro from serial.c file to driver header file
as from on errata will be handled in driver file itself.
Corrected errata id from chapter reference 2.15 to errata id i291.

Removed errata and dma_enabled fields from omap_uart_state struct
as they are no more needed with errata handling done within omap-serial.

Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kevin Hilman <khilman@ti.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
index 348c9ead6ed..842b429cfea 100644
--- a/arch/arm/plat-omap/include/plat/omap-serial.h
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -58,12 +58,18 @@
 
 #define MSR_SAVE_FLAGS          UART_MSR_ANY_DELTA
 
+#define UART_ERRATA_i202_MDR1_ACCESS    BIT(0)
+#define UART_ERRATA_i291_DMA_FORCEIDLE  BIT(1)
+
 struct omap_uart_port_info {
         bool                    dma_enabled;    /* To specify DMA Mode */
         unsigned int            uartclk;        /* UART clock rate */
         upf_t                   flags;          /* UPF_* flags */
+        u32                     errata;
 
         int (*get_context_loss_count)(struct device *);
+        void (*set_forceidle)(struct platform_device *);
+        void (*set_noidle)(struct platform_device *);
 };
 
 struct uart_omap_dma {
@@ -117,6 +123,7 @@ struct uart_omap_port {
         char                    name[20];
         unsigned long           port_activity;
         u32                     context_loss_cnt;
+        u32                     errata;
 };
 
 #endif /* __OMAP_SERIAL_H__ */