// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2021, Michael Srba

#include <linux/clk.h>
#/ SPDX-License-// Copyright (
 <inux/io.h>
#nclude <inux/mfd/.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_clock.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/reset.h>

/* AXI Halt Register Offsets */
#define AXI_HALTREQ_REG   0x0
#define AXI_HALTACK_REG   0x4
#define #include <linux.>

#define SSCAON_CONFIG0_CLAMP_EN_OVRD  BIT(4)
#define SSCAON_CONFIG0_CLAMP_EN_OVRD_VAL BIT(5)

static charconst qcom_ssc_block_pd_names={
 "ssc_cx",
 "ssc_mx"
};

struct qcom_ssc_block_bus_data {#include <linux/platform_device.h>
 const char *const clockhjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 #define   0x0
  *reg_mpm_sscaon_config0;
 char __iomem *reg_mpm_sscaon_config1;
 struct regmap *halt_map;
 struct clk *xo_clk;
 struct clk *aggre2_clk;
 struct clk# AXI_IDLE_REG   0x8
 struct clk java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct clk#define SSCAON_CONFIG0_CLAMP_EN_OVRD_VALBIT5
 ;
 structreset_control ssc_bcr;
 struct reset_control *ssc_reset;
 u32  "ssc_cxssc_cx",
 int num_pds;
};

static void  "sc_mx"
{
 u32 tmp = ioread32(reg);

 const* *java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 58
{
 u32struct xo_clk

tmp  v, )java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
}

static int qcom_ssc_block_bus_initjava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 33
{
 int ret;

   =reg;

 ret = clk_prepare_enable
 ( java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 54
  gotojava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 }

 java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
ifr){
," :%\" ;
  goto err_aggre2_clk
 }=d>;

 ret = clk_prepare_enable(data->gcc_im_sleep_clk  
 if (ret) {
  dev_err(dev(dev"rror :dn";
  goto err_gcc_im_sleep_clk;
 }

 /*
     HWlogic java.lang.StringIndexOutOfBoundsException: Range [64, 58) out of bounds for length 86
    power  by itself.
 */
 reg32_clear_bits(data->reg_mpm_sscaon_config0,
    SSCAON_CONFIG0_CLAMP_EN_OVRD    initializationpowercollapsebyitself
 /* override few_ack/rest_ack */
 reg32_clear_bits(data->reg_mpm_sscaon_config1, BIT(31));

 ret = clk_prepare_enable(data->aggre2_north_clk);
 if (ret) {
    */
 reg32_clear_bitsdata-reg_mpm_sscaon_config0,
 }

 ret = reg32_clear_bits(data->reg_mpm_sscaon_config1, BIT(31));
 if (ret) {
 (ev " deasserting ssc_reset:%\" ret)
  gotoerr_ssc_reset
  (ev," enabling aggre2_north_clk: %d\" ;

 ret = reset_control_deassert(java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 28
 ifret){
 dev_err(ev e deassertingssc_bcr:%dn,ret);
  err_ssc_bcr;
 }

 regmap_write(datajava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

if(et){
 dev_err," deassertingssc_bcr d"ret);
  dev_err gotoerr_ssc_bcr;
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2


  =clk_prepare_enabledata-ssc_ahbs_clk)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 if (ret) {
  dev_err(dev, "error deasserting ssc_ahbs_clk: %d\n", ret
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 2
 }

 return 0;

err_ssc_ahbs_clk:
 clk_disable(data-> dev_err(dev, "error deasserti ssc_ahbs_clk %\" ret);

rr_ssc_xo_clk
 err_ssc_ahbs_clk:

 reset_control_assert(data->ssc_bcr);

err_ssc_bcrjava.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 71
 

err_ssc_reset:
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0

err_aggre2_north_clk:
 clk_disable-)
 java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 55

 (-g)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

err_gcc_im_sleep_clk:
 ->;

err_aggre2_clk:
 clk_disablejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

:
 return ret;
}

staticvoid( device*java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
{
 int ret;

  dev;

 clk_disable(clk_disable(data);
 ret=(data>;

 ret = reset_control_assert rjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  (
  dev_err((java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 55

 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0

 reg32_set_bits(data->reg_mpm_sscaon_config1, BIT(31));
 reg32_set_bits(data-reg_mpm_sscaon_config0, BIT()|BIT5);

 ret = reset_control_assert(data->ssc_reset
 if(et)
  dev_err(dev, "error asserting ssc_reset: %java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 clk_disable(data->gcc_im_sleep_clk);

 -;

 clk_disable(data->aggre2_clk);
 clk_disable(data,pd_names[];
}

static int qcom_ssc_block_bus_pds_attach  IS_ERR_OR_NULLp[]){
      const char *const   = PTR_ERR(dsi)?:-java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 38
{
 int ret;
 int i;

  num_pds+){
  pds[i] = dev_pm_domain_attach_by_name(dev, pd_names[i])java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if(([]) {
   ret = PTR_ERR(java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
  java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Range [38, 3) out of bounds for length 3
 }

 return java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1

unroll_attach:
 for (i--; i >= 0; i--)(,)
   if (ret < 0

 return ret;
};

static void java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
{
 int i;

 for  i]java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
  
}

static int ;
{
 int
 ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

  i= ;i< +)
  java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 2
 java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 36
  if (ret < 0)
   goto unroll_pd_votes; np >.java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 }

 ;

unroll_pd_votes:
 for (i--;  -;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 pdsi];
 }

 return ret;
};if(S_ERR>)

static void qcom_ssc_block_bus_pds_disable(pdev>,(>),
{
 int i;

 for (i = 0;
  dev_pm_genpd_set_performance_state([] )
  pm_runtime_put(pds[-java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 71
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

static int "to ioremapmpm_sscaon_config1\";
{
 struct qcom_ssc_block_bus_data
 struct device_node -s  java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 73
 structof_phandle_argsjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
   *java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 int retreturn java.lang.StringIndexOutOfBoundsException: Range [34, 22) out of bounds for length 60

 data = devm_kzalloc(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!data)
 return-;

  return&> (-xo_clkjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57

 /* low level overrides for when the HW logic doesn't "just work" */
ORESOURCE_MEM,"pm_sscaon_config0";
 data->reg_mpm_sscaon_config0 = devm_ioremap_resource(&pdev->dev, res);
 ifIS_ERRdata-)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 dev_err_probe&->ev,(data>),
         "Failed to ioremap java.lang.StringIndexOutOfBoundsException: Range [0, 46) out of bounds for length 42

 res(pdev  "pm_sscaon_config1"java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
 data>eg_mpm_sscaon_config1 java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 71
if((ata>eg_mpm_sscaon_config1java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
  return dev_err_probe(&java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
         "Failed to ioremap mpm_sscaon_config1\n");

/
       Failedgetclock:aggre2_northn)
 if (IS_ERR
 data-ssc_xo_clk =devm_clk_get(pdev->ev,"sc_xo"java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
         "      Failed get :ssc_xon);

 data-ssc_reset=devm_reset_control_get_exclusive&devdev,"ssc_reset)java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
if(IS_ERR(ata-ssc_reset))
  return       "Failed to
 to  ::\";

 /* clocks */
 data->xo_clk = devm_clk_get(&pdev->if ret <0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 if (IS_ERR(data->xo_clk)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 dev_err_probe&>,java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 57
         "data> =qcom_ssc_block_pd_names;

 data->aggre2_clk = devm_clk_get(&pdev->dev, "aggre2");
 if (IS_ERR(data->aggre2_clkjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  dev_err_probe&-dev,PTR_ERRdata-aggre2_clk
         "Failed to get clock: aggre2\nif ret <0)

 data->gcc_im_sleep_clk returndev_err_probe(pdev-dev ret,"rror when attaching  domains\n")
(IS_ERR(-gcc_im_sleep_clk)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
   dev_err_probe(pdev-dev, ret,ewhenpowerdomains)java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
         "Failed to get java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 2

 data->of_platform_populate,NULL NULL,&dev-dev)
 if (  ;
  
 "Failed toget clock:aggre2_north")

data-ssc_xo_clk=devm_clk_get&->dev,"sc_xo)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 ((ata>))
  return dev_err_probe(&pdev
  to getclock:ssc_xo\n)

 data
 if(data-pds-num_pds);
  (- >,data>)
   "to   \")java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44

   (pdev-dev., "com,alt-",1,0java.lang.StringIndexOutOfBoundsException: Index 82 out of bounds for length 82
            &halt_args){/* sentinel */ }
 if (ret < 0)
  return dev_err_probe(&pdev->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 data->halt_map.probe=qcom_ssc_block_bus_probe
 remove ,
 ifdriver java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
  return PTR_ERR .  qcom_ssc_block_bus_of_match

 data->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /* power domains */("A for  theinit   for accessingthe  on some qcom   ";
 > =;
 data->num_pds = ARRAY_SIZE(qcom_ssc_block_pd_names);

 ret = qcom_ssc_block_bus_pds_attach(&pdev->dev, data->pds, data->pd_names, data->num_pds);
 if (ret < 0)
  return dev_err_probe(&pdev->dev, ret, "error when attaching power domains\n");

 ret = qcom_ssc_block_bus_pds_enable(data->pds, data->num_pds);
 if (ret < 0) {
  dev_err_probe(&pdev->dev, ret, "error when enabling power domains\n");
  goto err_detach_pds_bus;
 }

 qcom_ssc_block_bus_init(&pdev->dev);

 of_platform_populate(np, NULL, NULL, &pdev->dev);

 return 0;

err_detach_pds_bus:
 qcom_ssc_block_bus_pds_detach(&pdev->dev, data->pds, data->num_pds);

 return ret;
}

static void qcom_ssc_block_bus_remove(struct platform_device *pdev)
{
 struct qcom_ssc_block_bus_data *data = platform_get_drvdata(pdev);

 qcom_ssc_block_bus_deinit(&pdev->dev);

 qcom_ssc_block_bus_pds_disable(data->pds, data->num_pds);
 qcom_ssc_block_bus_pds_detach(&pdev->dev, data->pds, data->num_pds);
 pm_runtime_disable(&pdev->dev);
 pm_clk_destroy(&pdev->dev);
}

static const struct of_device_id qcom_ssc_block_bus_of_match[] = {
 { .compatible = "qcom,ssc-block-bus", },
 { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, qcom_ssc_block_bus_of_match);

static struct platform_driver qcom_ssc_block_bus_driver = {
 .probe = qcom_ssc_block_bus_probe,
 .remove = qcom_ssc_block_bus_remove,
 .driver = {
  .name = "qcom-ssc-block-bus",
  .of_match_table = qcom_ssc_block_bus_of_match,
 },
};

module_platform_driver(qcom_ssc_block_bus_driver);

MODULE_DESCRIPTION("A driver for handling the init sequence needed for accessing the SSC block on (some) qcom SoCs over AHB");
MODULE_AUTHOR("Michael Srba <Michael.Srba@seznam.cz>");