drivers/video/sprdfb/sprdfb_chip_common.c

   1 /******************************************************************************
   2  ** File Name:    sprdfb_chip_common.c                                     *
   3  ** Author:       congfu.zhao                                           *
   4  ** DATE:         30/04/2013                                        *
   5  ** Copyright:    2013 Spreatrum, Incoporated. All Rights Reserved. *
   6  ** Description:                                                    *
   7  ******************************************************************************/
   8 /******************************************************************************
   9  **                   Edit    History                               *
  10  **---------------------------------------------------------------------------*
  11  ** DATE          NAME            DESCRIPTION                       *
  12
  13  ******************************************************************************/
  14
  15
  16
  17 #include "sprdfb_chip_common.h"
  18
  19 void __raw_bits_and(unsigned int v, unsigned int a)
  20 {
  21         __raw_writel((__raw_readl(a) & v), a);
  22 }
  23
  24 void __raw_bits_or(unsigned int v, unsigned int a)
  25 {
  26         __raw_writel((__raw_readl(a) | v), a);
  27 }
  28
  29 void __raw_bits_set_value(unsigned int reg, unsigned int value, unsigned int bit, unsigned int mask)
  30 {
  31         __raw_writel(((__raw_readl(reg) & (~mask)) | (value << bit)), reg);
  32 }
  33
  34 void dispc_pll_clk_set(unsigned int clk_src, unsigned int clk_div)
  35 {
  36         __raw_bits_set_value(DISPC_PLL_SEL_CFG, clk_src, BITS_DISPC_PLL_SEL_CFG, BIT_DISPC_PLL_SEL_MSK);
  37         __raw_bits_set_value(DISPC_PLL_DIV_CFG, clk_div, BITS_DISPC_PLL_DIV_CFG, BIT_DISPC_PLL_DIV_MSK);
  38 }
  39
  40 void dispc_dbi_clk_set(unsigned int clk_src, unsigned int clk_div)
  41 {
  42         __raw_bits_set_value(DISPC_DBI_SEL_CFG, clk_src, BITS_DISPC_DBI_SEL_CFG, BIT_DISPC_DBI_SEL_MSK);
  43         __raw_bits_set_value(DISPC_DBI_DIV_CFG, clk_div, BITS_DISPC_DBI_DIV_CFG, BIT_DISPC_DBI_DIV_MSK);
  44 }
  45
  46 void dispc_dpi_clk_set(unsigned int clk_src, unsigned int clk_div)
  47 {
  48         __raw_bits_set_value(DISPC_DPI_SEL_CFG, clk_src, BITS_DISPC_DPI_SEL_CFG, BIT_DISPC_DPI_SEL_MSK);
  49         __raw_bits_set_value(DISPC_DPI_DIV_CFG, clk_div, BITS_DISPC_DPI_DIV_CFG, BIT_DISPC_DPI_DIV_MSK);
  50 }
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