Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) 	Intersil ISL6423 SEC and LNB Power supply controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 	Copyright (C) Manu Abraham <abraham.manu@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <media/dvb_frontend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "isl6423.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) static unsigned int verbose;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) module_param(verbose, int, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) MODULE_PARM_DESC(verbose, "Set Verbosity level");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define FE_ERROR				0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define FE_NOTICE				1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define FE_INFO					2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define FE_DEBUG				3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define FE_DEBUGREG				4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define dprintk(__y, __z, format, arg...) do {						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	if (__z) {									\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		if	((verbose > FE_ERROR) && (verbose > __y))			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 			printk(KERN_ERR "%s: " format "\n", __func__ , ##arg);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 		else if	((verbose > FE_NOTICE) && (verbose > __y))			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 			printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg);	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		else if ((verbose > FE_INFO) && (verbose > __y))			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 			printk(KERN_INFO "%s: " format "\n", __func__ , ##arg);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 		else if ((verbose > FE_DEBUG) && (verbose > __y))			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 			printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg);	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	} else {									\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		if (verbose > __y)							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 			printk(format, ##arg);						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	}										\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) struct isl6423_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	const struct isl6423_config	*config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct i2c_adapter		*i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	u8 reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	u8 reg_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	unsigned int verbose;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) static int isl6423_write(struct isl6423_dev *isl6423, u8 reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	struct i2c_adapter *i2c = isl6423->i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	u8 addr			= isl6423->config->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = &reg, .len = 1 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	dprintk(FE_DEBUG, 1, "write reg %02X", reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	err = i2c_transfer(i2c, &msg, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	dprintk(FE_ERROR, 1, "I/O error <%d>", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static int isl6423_set_modulation(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	struct isl6423_dev *isl6423		= (struct isl6423_dev *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	const struct isl6423_config *config	= isl6423->config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	u8 reg_2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	reg_2 = 0x01 << 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	if (config->mod_extern)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		reg_2 |= (1 << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		reg_2 |= (1 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	err = isl6423_write(isl6423, reg_2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	dprintk(FE_ERROR, 1, "I/O error <%d>", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) static int isl6423_voltage_boost(struct dvb_frontend *fe, long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	u8 reg_3 = isl6423->reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	u8 reg_4 = isl6423->reg_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (arg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		/* EN = 1, VSPEN = 1, VBOT = 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		reg_4 |= (1 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		reg_4 |= 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		reg_3 |= (1 << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		/* EN = 1, VSPEN = 1, VBOT = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		reg_4 |= (1 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		reg_4 &= ~0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		reg_3 |= (1 << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	err = isl6423_write(isl6423, reg_3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	err = isl6423_write(isl6423, reg_4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	isl6423->reg_3 = reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	isl6423->reg_4 = reg_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	dprintk(FE_ERROR, 1, "I/O error <%d>", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static int isl6423_set_voltage(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 			       enum fe_sec_voltage voltage)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	u8 reg_3 = isl6423->reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	u8 reg_4 = isl6423->reg_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	switch (voltage) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	case SEC_VOLTAGE_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		/* EN = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		reg_4 &= ~(1 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	case SEC_VOLTAGE_13:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		/* EN = 1, VSPEN = 1, VTOP = 0, VBOT = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		reg_4 |= (1 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		reg_4 &= ~0x3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		reg_3 |= (1 << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	case SEC_VOLTAGE_18:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		/* EN = 1, VSPEN = 1, VTOP = 1, VBOT = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		reg_4 |= (1 << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		reg_4 |=  0x2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		reg_4 &= ~0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		reg_3 |= (1 << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	err = isl6423_write(isl6423, reg_3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	err = isl6423_write(isl6423, reg_4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	isl6423->reg_3 = reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	isl6423->reg_4 = reg_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	dprintk(FE_ERROR, 1, "I/O error <%d>", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static int isl6423_set_current(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	struct isl6423_dev *isl6423		= (struct isl6423_dev *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	u8 reg_3 = isl6423->reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	const struct isl6423_config *config	= isl6423->config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	switch (config->current_max) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	case SEC_CURRENT_275m:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		/* 275mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		/* ISELH = 0, ISELL = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		reg_3 &= ~0x3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	case SEC_CURRENT_515m:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		/* 515mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		/* ISELH = 0, ISELL = 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		reg_3 &= ~0x2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		reg_3 |=  0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	case SEC_CURRENT_635m:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		/* 635mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		/* ISELH = 1, ISELL = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		reg_3 &= ~0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		reg_3 |=  0x2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	case SEC_CURRENT_800m:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		/* 800mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		/* ISELH = 1, ISELL = 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		reg_3 |= 0x3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	err = isl6423_write(isl6423, reg_3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	switch (config->curlim) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	case SEC_CURRENT_LIM_ON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		/* DCL = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		reg_3 &= ~0x10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	case SEC_CURRENT_LIM_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		/* DCL = 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		reg_3 |= 0x10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	err = isl6423_write(isl6423, reg_3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	isl6423->reg_3 = reg_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	dprintk(FE_ERROR, 1, "I/O error <%d>", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static void isl6423_release(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	isl6423_set_voltage(fe, SEC_VOLTAGE_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	kfree(fe->sec_priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	fe->sec_priv = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 				    struct i2c_adapter *i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 				    const struct isl6423_config *config)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	struct isl6423_dev *isl6423;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	isl6423 = kzalloc(sizeof(struct isl6423_dev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	if (!isl6423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	isl6423->config	= config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	isl6423->i2c	= i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	fe->sec_priv	= isl6423;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	/* SR3H = 0, SR3M = 1, SR3L = 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	isl6423->reg_3 = 0x02 << 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	/* SR4H = 0, SR4M = 1, SR4L = 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	isl6423->reg_4 = 0x03 << 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	if (isl6423_set_current(fe))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	if (isl6423_set_modulation(fe))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	fe->ops.release_sec		= isl6423_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	fe->ops.set_voltage		= isl6423_set_voltage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	fe->ops.enable_high_lnb_voltage = isl6423_voltage_boost;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	isl6423->verbose		= verbose;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	return fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	kfree(isl6423);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	fe->sec_priv = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) EXPORT_SYMBOL(isl6423_attach);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) MODULE_DESCRIPTION("ISL6423 SEC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) MODULE_AUTHOR("Manu Abraham");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) MODULE_LICENSE("GPL");