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connectionSignalSlot.c

connectionSignalSlot.c 1.8 KB
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  1. /*
    2. 

  2.  * arch/arm/mach-omap2/serial.c
    3. 

  3.  *
    4. 

  4.  * OMAP2 serial support.
    5. 

  5.  *
    6. 

  6.  * Copyright (C) 2005-2008 Nokia Corporation
    7. 

  7.  * Author: Paul Mundt <paul.mundt@nokia.com>
    8. 

  8.  *
    9. 

  9.  * Major rework for PM support by Kevin Hilman
    10. 

  10.  *
    11. 

  11.  * Based off of arch/arm/mach-omap/omap1/serial.c
    12. 

  12.  *
    13. 

  13.  * Copyright (C) 2009 Texas Instruments
    14. 

  14.  * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com
    15. 

  15.  *
    16. 

  16.  * This file is subject to the terms and conditions of the GNU General Public
    17. 

  17.  * License. See the file "COPYING" in the main directory of this archive
    18. 

  18.  * for more details.
    19. 

  19.  */
    20. 

  20. #include <linux/kernel.h>
    21. 

  21. #include <linux/init.h>
    22. 

  22. #include <linux/clk.h>
    23. 

  23. #include <linux/io.h>
    24. 

  24. #include <linux/delay.h>
    25. 

  25. #include <linux/platform_device.h>
    26. 

  26. #include <linux/slab.h>
    27. 

  27. #include <linux/pm_runtime.h>
    28. 

  28. #include <linux/console.h>
    29. 

  29. #include <linux/omap-dma.h>
    30. 

  30. #include <linux/platform_data/serial-omap.h>
    31. 

  31. 

  32. #include "common.h"
    33. 

  33. #include "omap_hwmod.h"
    34. 

  34. #include "omap_device.h"
    35. 

  35. #include "omap-pm.h"
    36. 

  36. #include "soc.h"
    37. 

  37. #include "prm2xxx_3xxx.h"
    38. 

  38. #include "pm.h"
    39. 

  39. #include "cm2xxx_3xxx.h"
    40. 

  40. #include "prm-regbits-34xx.h"
    41. 

  41. #include "control.h"
    42. 

  42. #include "mux.h"
    43. 

  43. #include "serial.h"
    44. 

  44. 

  45. /*
    46. 

  46.  * NOTE: By default the serial auto_suspend timeout is disabled as it causes
    47. 

  47.  * lost characters over the serial ports. This means that the UART clocks will
    48. 

  48.  * stay on until power/autosuspend_delay is set for the uart from sysfs.
    49. 

  49.  * This also causes that any deeper omap sleep states are blocked.
    50. 

  50.  */
    51. 

  51. #define DEFAULT_AUTOSUSPEND_DELAY	-1
    52. 

  52. 

  53. #define MAX_UART_HWMOD_NAME_LEN		16
    54. 

  54. 

  55. struct omap_uart_state {
    56. 

  56. 	int num;
    57. 

  57. 

  58. 	struct list_head node;
    59. 

  59. 	struct omap_hwmod *oh;
    60. 

  60. 	struct omap_device_pad default_omap_uart_pads[2];
    61. 

  61. };
    62. 

  62. 

  63. static LIST_HEAD(uart_list);
    64. 

  64. static u8 num_uarts;
    65. 

  65. static u8 console_uart_id = -1;
    66. 

  66. static u8 no_console_suspend;
    67. 

  67. static u8 uart_debug;
    68. 

  68. 

  69. #define DEFAULT_RXDMA_POLLRATE		1	/* RX DMA polling rate (us) */
    70.