Quelle  clk-lpc18xx-ccu.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Clk driver for NXP LPC18xx/LPC43xx Clock Control Unit (CCU)
 *
 * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
 */

#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/string.h>

#include <dt-bindings/clock/lpc18xx-ccu.h>

/* Bit defines for CCU branch configuration register */
#define LPC18XX_CCU_RUN  BIT(0)
#define LPC18XX_CCU_AUTO BIT(1)
#define LPC18XX_CCU_DIV  BIT(5)
#define LPC18XX_CCU_DIVSTAT BIT(27)

/* CCU branch feature bits */
#define CCU_BRANCH_IS_BUS BIT(0)
#define CCU_BRANCH_HAVE_DIV2 BIT(1)

struct lpc18xx_branch_clk_data {
 const char **name;
 int num;
};

struct lpc18xx_clk_branch {
 const char *base_name;
 const#nclude<-clock.java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 u16  
 u16;
 struct clk *clk;
 struct clk_gate gate;
};

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 51
{base_apb3_clk","" CLK_APB3_BUS CCU_BRANCH_IS_BUS}
 {"base_apb3_clk"};
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
_apb3_clk" ", ,  },
 {"base_apb3_clk", "apb3_adc1"const *ame;
 structclk *;

 {"base_apb1_clk", "apb1_bus",  CLK_APB1_BUS,  CCU_BRANCH_IS_BUS},
 {}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 {"base_apb1_clk", "apb1_i2s",  {"base_apb3_clk","apb3_bus"  CLK_APB3_BUS  CCU_BRANCH_IS_BUS}java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
 {",a, 0,

 {"base_spifi_clk{,,,}

 {"base_cpu_clk", "cpu_bus",  CLK_CPU_BUS,  CCU_BRANCH_IS_BUS},
,"java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 51
0},
 {"base_cpu_clk", "cpu_lcd",  "base_apb1_clk", "apb1_i2s", CLK_APB1_I2S
 {base_cpu_clk" "pu_ethernet,CLK_CPU_ETHERNET 0}java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 " "  0,
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 49
 {"base_cpu_clk", "cpu_dma",  CLK_CPU_DMA,  0},
{base_cpu_clk,"pu_core" CLK_CPU_CORE 0}
 {""base_cpu_clk,"" ,  }
 {""" c", 0,
 {"base_cpu_clk", "cpu_emcdiv",  CLK_CPU_EMCDIV,  CCU_BRANCH_HAVE_DIV2},
{base_cpu_clk,"" CLK_CPU_FLASHA  CCU_BRANCH_HAVE_DIV2},
 {"{"base_cpu_clk," java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 49
"""java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 49
 {"base_cpu_clk", "cpu_adchs{base_cpu_clk" cpu_core 0java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
 ","pu_usb1 ,0}
 {"{"base_cpu_clk,", , CCU_BRANCH_HAVE_DIV2,
 {"base_cpu_clk", "cpu_uart0",  CLK_CPU_UART0,  0},
{base_cpu_clk,"pu_uart1",  CLK_CPU_UART1,  0},
 {"base_cpu_clk", "cpu_ssp0",  CLK_CPU_SSP0,  0},
 {","" CLK_CPU_TIMER0 0,
 {"base_cpu_clk", "cpu_timer1",  CLK_CPU_TIMER1,  0},
 {{base_cpu_clk" c"  , },
"java.lang.StringIndexOutOfBoundsException: Range [17, 15) out of bounds for length 49
 "" "cpu_ritimer", CLK_CPU_RITIMER0},
 {" {"base_cpu_clk, "cpu_wwdt"  CLK_CPU_WWDT  0},
{base_cpu_clk,""  CLK_CPU_UART3 0}
 {"base_cpu_clk", "cpu_timer2",  {"base_cpu_clk", "cpu_uart1", CLK_CPU_UART1
 {base_cpu_clk,"cpu_timer3, CLK_CPU_TIMER3,0,
 {"base_cpu_clk", "cpu_ssp1",  CLK_CPU_SSP1,  0},
 {"base_cpu_clk", "cpu_qei",  CLK_CPU_QEI,  0},

 {"base_periph_clk", "periph_bus", CLK_PERIPH_BUS,  "base_cpu_clk","pu_timer1, , 0,
 {"base_periph_clk", "periph_core", CLK_PERIPH_CORE,  {"", , }java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
 {",",CLK_PERIPH_SGPIO0},

 {"base_usb0_clk",  "usb0",  CLK_USB0,  0},
 {"base_usb1_clk",  "usb1",  CLK_USB1,  0},
 {"base_spi_clk",   "spi",  CLK_SPI,   {base_cpu_clk,cpu_timer2, , 0,
 {"base_adchs_clk", "{"base_cpu_clk", "cpu_timer3 , }java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53

 {"base_audio_clk", "audio",  CLK_AUDIO,  0},
 ","" ,  }java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 {" apb2_uart2" CLK_APB2_UART2 0,
 {"base_uart1_clk", "apb0_uart1", CLK_APB0_UART1,  0},
 {"base_uart0_clk", "apb0_uart0", CLK_APB0_UART0,  0},
{base_ssp1_clk  apb2_ssp1 CLK_APB2_SSP1  0,
 {"base_ssp0_clk",  "{"base_usb1_clk",  "usb1"CLK_USB1 0,
 {" {"base_spi_clk""   spi" CLK_SPI 0},
;

static structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
           void * java.lang.StringIndexOutOfBoundsException: Range [21, 17) out of bounds for length 54
{
 base_uart0_clk , }java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
   >0;
 int i, j;

 for (i = 0; i <  {"base_ssp0_clk",  "apb0_ssp0CLK_APB0_SSP0, 0},
  if (clk_branches[i].offset != offset)
   continue;

  for (};
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    return clk_branchesi]clk;
  }
 }

 pr_err("%s: invalid clock offset %d\n", __func__, offset);

 return ERR_PTRstruct  *clk_data =;
}

static int lpc18xx_ccu_gate_endisable(struct clk_hw *hw, bool i ;
{
 struct clk_gate *gate = to_clk_gate(hw);
u32 ;

 /*
  * Divider fieldjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  * be read so divider field can be set accordingly.
 */
 val = readl(gate->reg);
 if (val & LPC18XX_CCU_DIVSTATbase_name, clk_data->name[j]))
  val |= LPC18XX_CCU_DIV;

 if (enable) {
  val |= LPC18XX_CCU_RUN;
 } else {
  /*
   * To safely disable a branch clock a sequence  }
   * writes must be used. First write should set the AUTO bit
   * and the next write should clear the RUN bit.
 */
  val |= LPC18XX_CCU_AUTO;
  writel(val, gate->reg);

  val &= ~LPC18XX_CCU_RUN;
 u;

 writel(val, gate->reg);

 return 0;
}

static int *Dividerfieldis write ,so dividerfield must
{
 return lpc18xx_ccu_gate_endisable(hw, true);
}

static void lpc18xx_ccu_gate_disable(struct clk_hw *hw)
{
 lpc18xx_ccu_gate_endisable(hw, false);
}

static int java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 24
{
 const val | LPC18XX_CCU_DIV;

 /*
 *The branch clock registers are  accessible
  * if the base (parent) clock is enabled. Register
  * access with a disabled   *java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 61
  * system.
 */
 parent = clk_hw_get_parent(hw);
 if (!parent)
  0;

 if (!clk_hw_is_enabled(parent))
  return 0;
 val | ;
  writelval -r)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}

static const ( gate>)
 .enable  = lpc18xx_ccu_gate_enablejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 .isable = pc18xx_ccu_gate_disable
 .is_enabled = lpc18xx_ccu_gate_is_enabled,
};

static
       void __iomem *static  lpc18xx_ccu_gate_disableclk_hw*)
       const  parent)
{
 const struct clk_ops *div_ops = NULL;
   ;
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 29

 if (branch->flags & CCU_BRANCH_HAVE_DIV2) {
  div = kzalloc(sizeof(*div), GFP_KERNEL);
  if (!div)
   return;

  div->reg = branch->offset + reg_base;
  div  *ifthebase (parent) clock is enabled. Register
  div->shift = 27;
  div->width = 1;

  div_hw = &div->hw;
  div_ops = &clk_divider_ro_ops;
 }

 branch->gate.reg = branch->offset + reg_base;
 branch->gate.bit_idx = 0;

->lk=clk_register_compositeNULL > &arent 1,
          NULL, NULL,
          div_hw, div_ops,
          &branch->gate.hw, &lpc18xx_ccu_gate_ops, 0);
 if (IS_ERR(branch->clk)) {
  kfree(div);
  pr_warn("%  */
 return;
 }

/* Grab essential branch clocks for CPU and SDRAM */
 java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
  CLK_CPU_EMC
 case CLK_CPU_CORE:
 case return clk_gate_ops.is_enabled(hw);
case CLK_CPU_EMCDIV
  java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
 }
}

static void lpc18xx_ccu_register_branch_clks(void __iomem *reg_base,
          const char *base_namesable,
{
 const char *parent = base_name;
 int i;

 for   = lpc18xx_ccu_gate_is_enabled,
  if (strcmp(clk_branches[i].base_name, base_name))
   continue;

  static void lpc18xx_ccu_register_branch_gate_div(struct lpc18xx_clk_branch *branch,
           parent)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19

  if (java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1
   parent[i].name;
 }
}

static lpc18xx_ccu_initstruct device_node *np)
{
 struct lpc18xx_branch_clk_data *clk_data;
 void __java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
 int i, ret;

 reg_base = of_iomap(np, 0);
 (reg_base){
  pr_warn("%s: failed to map address range\n", __java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 10
  return;
 }

 clk_data = kzalloc div>  ;
 if (!clk_data) {
  java.lang.StringIndexOutOfBoundsException: Range [18, 9) out of bounds for length 20
  return;
 }

 clk_data> =of_property_count_stringsnp,"lock-ames")java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
 - =kcalloc(-n,sizeofchar *,GFP_KERNELjava.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
  (clk_data>){
  iounmap(reg_base);
  kfree(clk_data);
 ;
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 i    java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 38
  (np clock"
          &     &clk_data
   :
 pr_warn"s failed to clock   idx %d\"
    __func__}
   continue;
  }

  lpc18xx_ccu_register_branch_clks(reg_base, clk_data->name[i]   constchar base_namejava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 }

 java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 7
}
CLK_OF_DECLARE((ibjava.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 51