Em Thu, 30 Oct 2014 16:01:51 +0800
"Nibble Max" <nibble.max@xxxxxxxxx> escreveu:
> v3:
> -config demod mclk in "set_params" call back.
> -remove "set_config".
Where's patch 1/3 v3?
Regards,
Mauro
>
> v2:
> -make demod mclk selection logic simple.
> -merge demod mclk and ts mclk into one call back.
> -make code clean.
>
> M88RS6000 is the integrated chip, which includes tuner and demod.
> Here splite its tuner as a standalone driver.
> .set_config is used to config its demod clock, which sits inside tuner die.
>
> Signed-off-by: Nibble Max <nibble.max@xxxxxxxxx>
> ---
> drivers/media/tuners/Kconfig | 8 +
> drivers/media/tuners/Makefile | 1 +
> drivers/media/tuners/m88rs6000t.c | 744 ++++++++++++++++++++++++++++++++++++++
> drivers/media/tuners/m88rs6000t.h | 29 ++
> 4 files changed, 782 insertions(+)
>
> diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig
> index f039dc2..42e5a01 100644
> --- a/drivers/media/tuners/Kconfig
> +++ b/drivers/media/tuners/Kconfig
> @@ -232,6 +232,14 @@ config MEDIA_TUNER_M88TS2022
> help
> Montage M88TS2022 silicon tuner driver.
>
> +config MEDIA_TUNER_M88RS6000T
> + tristate "Montage M88RS6000 internal tuner"
> + depends on MEDIA_SUPPORT && I2C
> + select REGMAP_I2C
> + default m if !MEDIA_SUBDRV_AUTOSELECT
> + help
> + Montage M88RS6000 internal tuner.
> +
> config MEDIA_TUNER_TUA9001
> tristate "Infineon TUA 9001 silicon tuner"
> depends on MEDIA_SUPPORT && I2C
> diff --git a/drivers/media/tuners/Makefile b/drivers/media/tuners/Makefile
> index 49fcf80..da4fe6e 100644
> --- a/drivers/media/tuners/Makefile
> +++ b/drivers/media/tuners/Makefile
> @@ -41,6 +41,7 @@ obj-$(CONFIG_MEDIA_TUNER_IT913X) += it913x.o
> obj-$(CONFIG_MEDIA_TUNER_R820T) += r820t.o
> obj-$(CONFIG_MEDIA_TUNER_MXL301RF) += mxl301rf.o
> obj-$(CONFIG_MEDIA_TUNER_QM1D1C0042) += qm1d1c0042.o
> +obj-$(CONFIG_MEDIA_TUNER_M88RS6000T) += m88rs6000t.o
>
> ccflags-y += -I$(srctree)/drivers/media/dvb-core
> ccflags-y += -I$(srctree)/drivers/media/dvb-frontends
> diff --git a/drivers/media/tuners/m88rs6000t.c b/drivers/media/tuners/m88rs6000t.c
> new file mode 100644
> index 0000000..d4c13fe
> --- /dev/null
> +++ b/drivers/media/tuners/m88rs6000t.c
> @@ -0,0 +1,744 @@
> +/*
> + * Driver for the internal tuner of Montage M88RS6000
> + *
> + * Copyright (C) 2014 Max nibble <nibble.max@xxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +#include "m88rs6000t.h"
> +#include <linux/regmap.h>
> +
> +struct m88rs6000t_dev {
> + struct m88rs6000t_config cfg;
> + struct i2c_client *client;
> + struct regmap *regmap;
> + u32 frequency_khz;
> +};
> +
> +struct m88rs6000t_reg_val {
> + u8 reg;
> + u8 val;
> +};
> +
> +/* set demod main mclk and ts mclk */
> +static int m88rs6000t_set_demod_mclk(struct dvb_frontend *fe)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> + struct dtv_frontend_properties *c = &fe->dtv_property_cache;
> + u8 reg11, reg15, reg16, reg1D, reg1E, reg1F;
> + u8 N, f0 = 0, f1 = 0, f2 = 0, f3 = 0;
> + u16 pll_div_fb;
> + u32 div, ts_mclk;
> + unsigned int utmp;
> + int ret;
> +
> + /* select demod main mclk */
> + ret = regmap_read(dev->regmap, 0x15, &utmp);
> + if (ret)
> + goto err;
> + reg15 = utmp;
> + if (c->symbol_rate > 45010000) {
> + reg11 = 0x0E;
> + reg15 |= 0x02;
> + reg16 = 115; /* mclk = 110.25MHz */
> + } else {
> + reg11 = 0x0A;
> + reg15 &= ~0x02;
> + reg16 = 96; /* mclk = 96MHz */
> + }
> +
> + /* set ts mclk */
> + if (c->delivery_system == SYS_DVBS)
> + ts_mclk = 96000;
> + else
> + ts_mclk = 144000;
> +
> + pll_div_fb = (reg15 & 0x01) << 8;
> + pll_div_fb += reg16;
> + pll_div_fb += 32;
> +
> + div = 36000 * pll_div_fb;
> + div /= ts_mclk;
> +
> + if (div <= 32) {
> + N = 2;
> + f0 = 0;
> + f1 = div / 2;
> + f2 = div - f1;
> + f3 = 0;
> + } else if (div <= 48) {
> + N = 3;
> + f0 = div / 3;
> + f1 = (div - f0) / 2;
> + f2 = div - f0 - f1;
> + f3 = 0;
> + } else if (div <= 64) {
> + N = 4;
> + f0 = div / 4;
> + f1 = (div - f0) / 3;
> + f2 = (div - f0 - f1) / 2;
> + f3 = div - f0 - f1 - f2;
> + } else {
> + N = 4;
> + f0 = 16;
> + f1 = 16;
> + f2 = 16;
> + f3 = 16;
> + }
> +
> + if (f0 == 16)
> + f0 = 0;
> + if (f1 == 16)
> + f1 = 0;
> + if (f2 == 16)
> + f2 = 0;
> + if (f3 == 16)
> + f3 = 0;
> +
> + ret = regmap_read(dev->regmap, 0x1D, &utmp);
> + if (ret)
> + goto err;
> + reg1D = utmp;
> + reg1D &= ~0x03;
> + reg1D |= N - 1;
> + reg1E = ((f3 << 4) + f2) & 0xFF;
> + reg1F = ((f1 << 4) + f0) & 0xFF;
> +
> + /* program and recalibrate demod PLL */
> + ret = regmap_write(dev->regmap, 0x05, 0x40);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x11, 0x08);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x15, reg15);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x16, reg16);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x1D, reg1D);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x1E, reg1E);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x1F, reg1F);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x17, 0xc1);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x17, 0x81);
> + if (ret)
> + goto err;
> + usleep_range(5000, 50000);
> + ret = regmap_write(dev->regmap, 0x05, 0x00);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x11, reg11);
> + if (ret)
> + goto err;
> + usleep_range(5000, 50000);
> +err:
> + if (ret)
> + dev_dbg(&dev->client->dev, "failed=%d\n", ret);
> + return ret;
> +}
> +
> +static int m88rs6000t_set_pll_freq(struct m88rs6000t_dev *dev,
> + u32 tuner_freq_MHz)
> +{
> + u32 fcry_KHz, ulNDiv1, ulNDiv2, ulNDiv;
> + u8 refDiv, ucLoDiv1, ucLomod1, ucLoDiv2, ucLomod2, ucLoDiv, ucLomod;
> + u8 reg27, reg29, reg42, reg42buf;
> + unsigned int utmp;
> + int ret;
> +
> + fcry_KHz = 27000; /* in kHz */
> + refDiv = 27;
> +
> + ret = regmap_write(dev->regmap, 0x36, (refDiv - 8));
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x31, 0x00);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x2c, 0x02);
> + if (ret)
> + goto err;
> +
> + if (tuner_freq_MHz >= 1550) {
> + ucLoDiv1 = 2;
> + ucLomod1 = 0;
> + ucLoDiv2 = 2;
> + ucLomod2 = 0;
> + } else if (tuner_freq_MHz >= 1380) {
> + ucLoDiv1 = 3;
> + ucLomod1 = 16;
> + ucLoDiv2 = 2;
> + ucLomod2 = 0;
> + } else if (tuner_freq_MHz >= 1070) {
> + ucLoDiv1 = 3;
> + ucLomod1 = 16;
> + ucLoDiv2 = 3;
> + ucLomod2 = 16;
> + } else if (tuner_freq_MHz >= 1000) {
> + ucLoDiv1 = 3;
> + ucLomod1 = 16;
> + ucLoDiv2 = 4;
> + ucLomod2 = 64;
> + } else if (tuner_freq_MHz >= 775) {
> + ucLoDiv1 = 4;
> + ucLomod1 = 64;
> + ucLoDiv2 = 4;
> + ucLomod2 = 64;
> + } else if (tuner_freq_MHz >= 700) {
> + ucLoDiv1 = 6;
> + ucLomod1 = 48;
> + ucLoDiv2 = 4;
> + ucLomod2 = 64;
> + } else if (tuner_freq_MHz >= 520) {
> + ucLoDiv1 = 6;
> + ucLomod1 = 48;
> + ucLoDiv2 = 6;
> + ucLomod2 = 48;
> + } else {
> + ucLoDiv1 = 8;
> + ucLomod1 = 96;
> + ucLoDiv2 = 8;
> + ucLomod2 = 96;
> + }
> +
> + ulNDiv1 = ((tuner_freq_MHz * ucLoDiv1 * 1000) * refDiv
> + / fcry_KHz - 1024) / 2;
> + ulNDiv2 = ((tuner_freq_MHz * ucLoDiv2 * 1000) * refDiv
> + / fcry_KHz - 1024) / 2;
> +
> + reg27 = (((ulNDiv1 >> 8) & 0x0F) + ucLomod1) & 0x7F;
> + ret = regmap_write(dev->regmap, 0x27, reg27);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x28, (u8)(ulNDiv1 & 0xFF));
> + if (ret)
> + goto err;
> + reg29 = (((ulNDiv2 >> 8) & 0x0F) + ucLomod2) & 0x7f;
> + ret = regmap_write(dev->regmap, 0x29, reg29);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x2a, (u8)(ulNDiv2 & 0xFF));
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x2F, 0xf5);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x30, 0x05);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x08, 0x1f);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x08, 0x3f);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x09, 0x20);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x09, 0x00);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x3e, 0x11);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x08, 0x2f);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x08, 0x3f);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x09, 0x10);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x09, 0x00);
> + if (ret)
> + goto err;
> + usleep_range(2000, 50000);
> +
> + ret = regmap_read(dev->regmap, 0x42, &utmp);
> + if (ret)
> + goto err;
> + reg42 = utmp;
> +
> + ret = regmap_write(dev->regmap, 0x3e, 0x10);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x08, 0x2f);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x08, 0x3f);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x09, 0x10);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x09, 0x00);
> + if (ret)
> + goto err;
> + usleep_range(2000, 50000);
> +
> + ret = regmap_read(dev->regmap, 0x42, &utmp);
> + if (ret)
> + goto err;
> + reg42buf = utmp;
> + if (reg42buf < reg42) {
> + ret = regmap_write(dev->regmap, 0x3e, 0x11);
> + if (ret)
> + goto err;
> + }
> + usleep_range(5000, 50000);
> +
> + ret = regmap_read(dev->regmap, 0x2d, &utmp);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x2d, utmp);
> + if (ret)
> + goto err;
> + ret = regmap_read(dev->regmap, 0x2e, &utmp);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x2e, utmp);
> + if (ret)
> + goto err;
> +
> + ret = regmap_read(dev->regmap, 0x27, &utmp);
> + if (ret)
> + goto err;
> + reg27 = utmp & 0x70;
> + ret = regmap_read(dev->regmap, 0x83, &utmp);
> + if (ret)
> + goto err;
> + if (reg27 == (utmp & 0x70)) {
> + ucLoDiv = ucLoDiv1;
> + ulNDiv = ulNDiv1;
> + ucLomod = ucLomod1 / 16;
> + } else {
> + ucLoDiv = ucLoDiv2;
> + ulNDiv = ulNDiv2;
> + ucLomod = ucLomod2 / 16;
> + }
> +
> + if ((ucLoDiv == 3) || (ucLoDiv == 6)) {
> + refDiv = 18;
> + ret = regmap_write(dev->regmap, 0x36, (refDiv - 8));
> + if (ret)
> + goto err;
> + ulNDiv = ((tuner_freq_MHz * ucLoDiv * 1000) * refDiv
> + / fcry_KHz - 1024) / 2;
> + }
> +
> + reg27 = (0x80 + ((ucLomod << 4) & 0x70)
> + + ((ulNDiv >> 8) & 0x0F)) & 0xFF;
> + ret = regmap_write(dev->regmap, 0x27, reg27);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x28, (u8)(ulNDiv & 0xFF));
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x29, 0x80);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x31, 0x03);
> + if (ret)
> + goto err;
> +
> + if (ucLoDiv == 3)
> + utmp = 0xCE;
> + else
> + utmp = 0x8A;
> + ret = regmap_write(dev->regmap, 0x3b, utmp);
> + if (ret)
> + goto err;
> +
> + dev->frequency_khz = fcry_KHz * (ulNDiv * 2 + 1024) / refDiv / ucLoDiv;
> +
> + dev_dbg(&dev->client->dev,
> + "actual tune frequency=%d\n", dev->frequency_khz);
> +err:
> + if (ret)
> + dev_dbg(&dev->client->dev, "failed=%d\n", ret);
> + return ret;
> +}
> +
> +static int m88rs6000t_set_bb(struct m88rs6000t_dev *dev,
> + u32 symbol_rate_KSs, s32 lpf_offset_KHz)
> +{
> + u32 f3dB;
> + u8 reg40;
> +
> + f3dB = symbol_rate_KSs * 9 / 14 + 2000;
> + f3dB += lpf_offset_KHz;
> + f3dB = clamp_val(f3dB, 6000U, 43000U);
> + reg40 = f3dB / 1000;
> + return regmap_write(dev->regmap, 0x40, reg40);
> +}
> +
> +static int m88rs6000t_set_params(struct dvb_frontend *fe)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> + struct dtv_frontend_properties *c = &fe->dtv_property_cache;
> + int ret;
> + s32 lpf_offset_KHz;
> + u32 realFreq, freq_MHz;
> +
> + dev_dbg(&dev->client->dev,
> + "frequency=%d symbol_rate=%d\n",
> + c->frequency, c->symbol_rate);
> +
> + if (c->symbol_rate < 5000000)
> + lpf_offset_KHz = 3000;
> + else
> + lpf_offset_KHz = 0;
> +
> + realFreq = c->frequency + lpf_offset_KHz;
> + /* set tuner pll.*/
> + freq_MHz = (realFreq + 500) / 1000;
> + ret = m88rs6000t_set_pll_freq(dev, freq_MHz);
> + if (ret)
> + goto err;
> + ret = m88rs6000t_set_bb(dev, c->symbol_rate / 1000, lpf_offset_KHz);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x00, 0x01);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x00, 0x00);
> + if (ret)
> + goto err;
> + /* set demod mlck */
> + ret = m88rs6000t_set_demod_mclk(fe);
> +err:
> + if (ret)
> + dev_dbg(&dev->client->dev, "failed=%d\n", ret);
> + return ret;
> +}
> +
> +static int m88rs6000t_init(struct dvb_frontend *fe)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> + int ret;
> +
> + dev_dbg(&dev->client->dev, "%s:\n", __func__);
> +
> + ret = regmap_update_bits(dev->regmap, 0x11, 0x08, 0x08);
> + if (ret)
> + goto err;
> + usleep_range(5000, 50000);
> + ret = regmap_update_bits(dev->regmap, 0x10, 0x01, 0x01);
> + if (ret)
> + goto err;
> + usleep_range(10000, 50000);
> + ret = regmap_write(dev->regmap, 0x07, 0x7d);
> +err:
> + if (ret)
> + dev_dbg(&dev->client->dev, "failed=%d\n", ret);
> + return ret;
> +}
> +
> +static int m88rs6000t_sleep(struct dvb_frontend *fe)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> + int ret;
> +
> + dev_dbg(&dev->client->dev, "%s:\n", __func__);
> +
> + ret = regmap_write(dev->regmap, 0x07, 0x6d);
> + if (ret)
> + goto err;
> + usleep_range(5000, 10000);
> +err:
> + if (ret)
> + dev_dbg(&dev->client->dev, "failed=%d\n", ret);
> + return ret;
> +}
> +
> +static int m88rs6000t_get_frequency(struct dvb_frontend *fe, u32 *frequency)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> +
> + dev_dbg(&dev->client->dev, "\n");
> +
> + *frequency = dev->frequency_khz;
> + return 0;
> +}
> +
> +static int m88rs6000t_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> +
> + dev_dbg(&dev->client->dev, "\n");
> +
> + *frequency = 0; /* Zero-IF */
> + return 0;
> +}
> +
> +
> +static int m88rs6000t_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
> +{
> + struct m88rs6000t_dev *dev = fe->tuner_priv;
> + unsigned int val, i;
> + int ret;
> + u16 gain;
> + u32 PGA2_cri_GS = 46, PGA2_crf_GS = 290, TIA_GS = 290;
> + u32 RF_GC = 1200, IF_GC = 1100, BB_GC = 300;
> + u32 PGA2_GC = 300, TIA_GC = 300, PGA2_cri = 0, PGA2_crf = 0;
> + u32 RFG = 0, IFG = 0, BBG = 0, PGA2G = 0, TIAG = 0;
> + u32 RFGS[13] = {0, 245, 266, 268, 270, 285,
> + 298, 295, 283, 285, 285, 300, 300};
> + u32 IFGS[12] = {0, 300, 230, 270, 270, 285,
> + 295, 285, 290, 295, 295, 310};
> + u32 BBGS[14] = {0, 286, 275, 290, 294, 300, 290,
> + 290, 285, 283, 260, 295, 290, 260};
> +
> + ret = regmap_read(dev->regmap, 0x5A, &val);
> + if (ret)
> + goto err;
> + RF_GC = val & 0x0f;
> +
> + ret = regmap_read(dev->regmap, 0x5F, &val);
> + if (ret)
> + goto err;
> + IF_GC = val & 0x0f;
> +
> + ret = regmap_read(dev->regmap, 0x3F, &val);
> + if (ret)
> + goto err;
> + TIA_GC = (val >> 4) & 0x07;
> +
> + ret = regmap_read(dev->regmap, 0x77, &val);
> + if (ret)
> + goto err;
> + BB_GC = (val >> 4) & 0x0f;
> +
> + ret = regmap_read(dev->regmap, 0x76, &val);
> + if (ret)
> + goto err;
> + PGA2_GC = val & 0x3f;
> + PGA2_cri = PGA2_GC >> 2;
> + PGA2_crf = PGA2_GC & 0x03;
> +
> + for (i = 0; i <= RF_GC; i++)
> + RFG += RFGS[i];
> +
> + if (RF_GC == 0)
> + RFG += 400;
> + if (RF_GC == 1)
> + RFG += 300;
> + if (RF_GC == 2)
> + RFG += 200;
> + if (RF_GC == 3)
> + RFG += 100;
> +
> + for (i = 0; i <= IF_GC; i++)
> + IFG += IFGS[i];
> +
> + TIAG = TIA_GC * TIA_GS;
> +
> + for (i = 0; i <= BB_GC; i++)
> + BBG += BBGS[i];
> +
> + PGA2G = PGA2_cri * PGA2_cri_GS + PGA2_crf * PGA2_crf_GS;
> +
> + gain = RFG + IFG - TIAG + BBG + PGA2G;
> +
> + /* scale value to 0x0000-0xffff */
> + gain = clamp_val(gain, 1000U, 10500U);
> + *strength = (10500 - gain) * 0xffff / (10500 - 1000);
> +err:
> + if (ret)
> + dev_dbg(&dev->client->dev, "failed=%d\n", ret);
> + return ret;
> +}
> +
> +static const struct dvb_tuner_ops m88rs6000t_tuner_ops = {
> + .info = {
> + .name = "Montage M88RS6000 Internal Tuner",
> + .frequency_min = 950000,
> + .frequency_max = 2150000,
> + },
> +
> + .init = m88rs6000t_init,
> + .sleep = m88rs6000t_sleep,
> + .set_params = m88rs6000t_set_params,
> + .get_frequency = m88rs6000t_get_frequency,
> + .get_if_frequency = m88rs6000t_get_if_frequency,
> + .get_rf_strength = m88rs6000t_get_rf_strength,
> +};
> +
> +static int m88rs6000t_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct m88rs6000t_config *cfg = client->dev.platform_data;
> + struct dvb_frontend *fe = cfg->fe;
> + struct m88rs6000t_dev *dev;
> + int ret, i;
> + unsigned int utmp;
> + static const struct regmap_config regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + };
> + static const struct m88rs6000t_reg_val reg_vals[] = {
> + {0x10, 0xfb},
> + {0x24, 0x38},
> + {0x11, 0x0a},
> + {0x12, 0x00},
> + {0x2b, 0x1c},
> + {0x44, 0x48},
> + {0x54, 0x24},
> + {0x55, 0x06},
> + {0x59, 0x00},
> + {0x5b, 0x4c},
> + {0x60, 0x8b},
> + {0x61, 0xf4},
> + {0x65, 0x07},
> + {0x6d, 0x6f},
> + {0x6e, 0x31},
> + {0x3c, 0xf3},
> + {0x37, 0x0f},
> + {0x48, 0x28},
> + {0x49, 0xd8},
> + {0x70, 0x66},
> + {0x71, 0xCF},
> + {0x72, 0x81},
> + {0x73, 0xA7},
> + {0x74, 0x4F},
> + {0x75, 0xFC},
> + };
> +
> + dev = kzalloc(sizeof(*dev), GFP_KERNEL);
> + if (!dev) {
> + ret = -ENOMEM;
> + dev_err(&client->dev, "kzalloc() failed\n");
> + goto err;
> + }
> +
> + memcpy(&dev->cfg, cfg, sizeof(struct m88rs6000t_config));
> + dev->client = client;
> + dev->regmap = devm_regmap_init_i2c(client, ®map_config);
> + if (IS_ERR(dev->regmap)) {
> + ret = PTR_ERR(dev->regmap);
> + goto err;
> + }
> +
> + ret = regmap_update_bits(dev->regmap, 0x11, 0x08, 0x08);
> + if (ret)
> + goto err;
> + usleep_range(5000, 50000);
> + ret = regmap_update_bits(dev->regmap, 0x10, 0x01, 0x01);
> + if (ret)
> + goto err;
> + usleep_range(10000, 50000);
> + ret = regmap_write(dev->regmap, 0x07, 0x7d);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x04, 0x01);
> + if (ret)
> + goto err;
> +
> + /* check tuner chip id */
> + ret = regmap_read(dev->regmap, 0x01, &utmp);
> + if (ret)
> + goto err;
> + dev_info(&dev->client->dev, "chip_id=%02x\n", utmp);
> + if (utmp != 0x64) {
> + ret = -ENODEV;
> + goto err;
> + }
> +
> + /* tuner init. */
> + ret = regmap_write(dev->regmap, 0x05, 0x40);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x11, 0x08);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x15, 0x6c);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x17, 0xc1);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x17, 0x81);
> + if (ret)
> + goto err;
> + usleep_range(10000, 50000);
> + ret = regmap_write(dev->regmap, 0x05, 0x00);
> + if (ret)
> + goto err;
> + ret = regmap_write(dev->regmap, 0x11, 0x0a);
> + if (ret)
> + goto err;
> +
> + for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
> + ret = regmap_write(dev->regmap,
> + reg_vals[i].reg, reg_vals[i].val);
> + if (ret)
> + goto err;
> + }
> +
> + dev_info(&dev->client->dev, "Montage M88RS6000 internal tuner successfully identified\n");
> +
> + fe->tuner_priv = dev;
> + memcpy(&fe->ops.tuner_ops, &m88rs6000t_tuner_ops,
> + sizeof(struct dvb_tuner_ops));
> + i2c_set_clientdata(client, dev);
> + return 0;
> +err:
> + dev_dbg(&client->dev, "failed=%d\n", ret);
> + kfree(dev);
> + return ret;
> +}
> +
> +static int m88rs6000t_remove(struct i2c_client *client)
> +{
> + struct m88rs6000t_dev *dev = i2c_get_clientdata(client);
> + struct dvb_frontend *fe = dev->cfg.fe;
> +
> + dev_dbg(&client->dev, "\n");
> +
> + memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
> + fe->tuner_priv = NULL;
> + kfree(dev);
> +
> + return 0;
> +}
> +
> +static const struct i2c_device_id m88rs6000t_id[] = {
> + {"m88rs6000t", 0},
> + {}
> +};
> +MODULE_DEVICE_TABLE(i2c, m88rs6000t_id);
> +
> +static struct i2c_driver m88rs6000t_driver = {
> + .driver = {
> + .owner = THIS_MODULE,
> + .name = "m88rs6000t",
> + },
> + .probe = m88rs6000t_probe,
> + .remove = m88rs6000t_remove,
> + .id_table = m88rs6000t_id,
> +};
> +
> +module_i2c_driver(m88rs6000t_driver);
> +
> +MODULE_AUTHOR("Max nibble <nibble.max@xxxxxxxxx>");
> +MODULE_DESCRIPTION("Montage M88RS6000 internal tuner driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/media/tuners/m88rs6000t.h b/drivers/media/tuners/m88rs6000t.h
> new file mode 100644
> index 0000000..264c13e
> --- /dev/null
> +++ b/drivers/media/tuners/m88rs6000t.h
> @@ -0,0 +1,29 @@
> +/*
> + * Driver for the internal tuner of Montage M88RS6000
> + *
> + * Copyright (C) 2014 Max nibble <nibble.max@xxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +#ifndef _M88RS6000T_H_
> +#define _M88RS6000T_H_
> +
> +#include "dvb_frontend.h"
> +
> +struct m88rs6000t_config {
> + /*
> + * pointer to DVB frontend
> + */
> + struct dvb_frontend *fe;
> +};
> +
> +#endif
>
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