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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * netup-init.c4 *5 * NetUP Dual DVB-S2 CI driver6 *7 * Copyright (C) 2009 NetUP Inc.8 * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>9 * Copyright (C) 2009 Abylay Ospan <aospan@netup.ru>10 */11 12#include "cx23885.h"13#include "netup-init.h"14 15static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val)16{17 int ret;18 u8 buf[3];19 struct i2c_msg msg = {20 .addr = 0x88 >> 1,21 .flags = 0,22 .buf = buf,23 .len = 324 };25 26 buf[0] = reg >> 8;27 buf[1] = reg & 0xff;28 buf[2] = val;29 30 ret = i2c_transfer(i2c, &msg, 1);31 32 if (ret != 1)33 pr_err("%s: i2c write error!\n", __func__);34}35 36static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val)37{38 int ret;39 u8 buf[6];40 struct i2c_msg msg = {41 .addr = 0x88 >> 1,42 .flags = 0,43 .buf = buf,44 .len = 645 };46 47 buf[0] = reg >> 8;48 buf[1] = reg & 0xff;49 buf[2] = val & 0xff;50 buf[3] = (val >> 8) & 0xff;51 buf[4] = (val >> 16) & 0xff;52 buf[5] = val >> 24;53 54 ret = i2c_transfer(i2c, &msg, 1);55 56 if (ret != 1)57 pr_err("%s: i2c write error!\n", __func__);58}59 60static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg)61{62 int ret;63 u8 buf[2];64 struct i2c_msg msg = {65 .addr = 0x88 >> 1,66 .flags = 0,67 .buf = buf,68 .len = 269 };70 71 buf[0] = reg >> 8;72 buf[1] = reg & 0xff;73 74 ret = i2c_transfer(i2c, &msg, 1);75 76 if (ret != 1)77 pr_err("%s: i2c write error!\n", __func__);78 79 msg.flags = I2C_M_RD;80 msg.len = 1;81 82 ret = i2c_transfer(i2c, &msg, 1);83 84 if (ret != 1)85 pr_err("%s: i2c read error!\n", __func__);86 87 return buf[0];88}89 90static void i2c_av_and_or(struct i2c_adapter *i2c, u16 reg, unsigned and_mask,91 u8 or_value)92{93 i2c_av_write(i2c, reg, (i2c_av_read(i2c, reg) & and_mask) | or_value);94}95/* set 27MHz on AUX_CLK */96void netup_initialize(struct cx23885_dev *dev)97{98 struct cx23885_i2c *i2c_bus = &dev->i2c_bus[2];99 struct i2c_adapter *i2c = &i2c_bus->i2c_adap;100 101 /* Stop microcontroller */102 i2c_av_and_or(i2c, 0x803, ~0x10, 0x00);103 104 /* Aux PLL frac for 27 MHz */105 i2c_av_write4(i2c, 0x114, 0xea0eb3);106 107 /* Aux PLL int for 27 MHz */108 i2c_av_write4(i2c, 0x110, 0x090319);109 110 /* start microcontroller */111 i2c_av_and_or(i2c, 0x803, ~0x10, 0x10);112}113