Hi Mauro,

You said the following to Budi Rachmanto:
> No, you should not add your credits here. You're just adding some new board
> definitions, not rewriting a significant amount of the driver. The credits
> of your work will be preserved via the git log. A gold rule we use in
> Kernel when adding credits info is when the changes touch more than 30% of
> the driver's code.

I did not know the above rule to add a credit.
I also added my credits to the below patch I sent about one month ago
though I should have not added them because I did not change much enough to 30%.
To remove my credits, do I need just to re-post another patch without my credits
or to revert my previous patch and re-post the new one?

Please advise.

Thanks,
Satoshi


On 2016/03/08 23:19, Satoshi Nagahama wrote:
> Hi Mauro, Akihiro,
> 
> I added em28xx_dvb to support for PLEX PX-BCUD (ISDB-S usb dongle).
> Please move forward with this patch if there is no problem.
> Or something wrong, please advise me what I should do.
> 
> PX-BCUD has the following components:
>    USB interface: Empia EM28178
>    Demodulator: Toshiba TC90532 (works by code for TC90522)
>    Tuner: Next version of Sharp QM1D1C0042
> 
> em28xx_dvb_init(), add init code for PLEX PX-BCUD with calling
> px_bcud_init() that does things like pin configuration.
> 
> qm1d1c0042_init(), support the next version of QM1D1C0042, change to
> choose an appropriate array of initial registers by reading chip id.
> 
> 
> Signed-off-by: Satoshi Nagahama <satt...@aim.com>
> ---
>   drivers/media/tuners/qm1d1c0042.c       |  35 +++++++---
>   drivers/media/usb/em28xx/Kconfig        |   2 +
>   drivers/media/usb/em28xx/em28xx-cards.c |  27 ++++++++
>   drivers/media/usb/em28xx/em28xx-dvb.c   | 117 
> ++++++++++++++++++++++++++++++++
>   drivers/media/usb/em28xx/em28xx.h       |   1 +
>   5 files changed, 171 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/media/tuners/qm1d1c0042.c 
> b/drivers/media/tuners/qm1d1c0042.c
> index 18bc745..8fd91a2 100644
> --- a/drivers/media/tuners/qm1d1c0042.c
> +++ b/drivers/media/tuners/qm1d1c0042.c
> @@ -2,6 +2,7 @@
>    * Sharp QM1D1C0042 8PSK tuner driver
>    *
>    * Copyright (C) 2014 Akihiro Tsukada <tsk...@gmail.com>
> + * Copyright (C) 2016 Satoshi Nagahama <satt...@aim.com>
>    *
>    * This program is free software; you can redistribute it and/or
>    * modify it under the terms of the GNU General Public License as
> @@ -32,14 +33,23 @@
>   #include "qm1d1c0042.h"
> 
>   #define QM1D1C0042_NUM_REGS 0x20
> -
> -static const u8 reg_initval[QM1D1C0042_NUM_REGS] = {
> -     0x48, 0x1c, 0xa0, 0x10, 0xbc, 0xc5, 0x20, 0x33,
> -     0x06, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
> -     0x00, 0xff, 0xf3, 0x00, 0x2a, 0x64, 0xa6, 0x86,
> -     0x8c, 0xcf, 0xb8, 0xf1, 0xa8, 0xf2, 0x89, 0x00
> +#define QM1D1C0042_NUM_REG_ROWS 2
> +
> +static const u8 reg_initval[QM1D1C0042_NUM_REG_ROWS][QM1D1C0042_NUM_REGS] = 
> { {
> +             0x48, 0x1c, 0xa0, 0x10, 0xbc, 0xc5, 0x20, 0x33,
> +             0x06, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
> +             0x00, 0xff, 0xf3, 0x00, 0x2a, 0x64, 0xa6, 0x86,
> +             0x8c, 0xcf, 0xb8, 0xf1, 0xa8, 0xf2, 0x89, 0x00
> +     }, {
> +             0x68, 0x1c, 0xc0, 0x10, 0xbc, 0xc1, 0x11, 0x33,
> +             0x03, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
> +             0x00, 0xff, 0xf3, 0x00, 0x3f, 0x25, 0x5c, 0xd6,
> +             0x55, 0xcf, 0x95, 0xf6, 0x36, 0xf2, 0x09, 0x00
> +     }
>   };
> 
> +static int reg_index;
> +
>   static const struct qm1d1c0042_config default_cfg = {
>       .xtal_freq = 16000,
>       .lpf = 1,
> @@ -320,7 +330,6 @@ static int qm1d1c0042_init(struct dvb_frontend *fe)
>       int i, ret;
> 
>       state = fe->tuner_priv;
> -     memcpy(state->regs, reg_initval, sizeof(reg_initval));
> 
>       reg_write(state, 0x01, 0x0c);
>       reg_write(state, 0x01, 0x0c);
> @@ -330,15 +339,19 @@ static int qm1d1c0042_init(struct dvb_frontend *fe)
>               goto failed;
>       usleep_range(2000, 3000);
> 
> -     val = state->regs[0x01] | 0x10;
> -     ret = reg_write(state, 0x01, val); /* soft reset off */
> +     ret = reg_write(state, 0x01, 0x1c); /* soft reset off */
>       if (ret < 0)
>               goto failed;
> 
> -     /* check ID */
> +     /* check ID and choose initial registers corresponding ID */
>       ret = reg_read(state, 0x00, &val);
> -     if (ret < 0 || val != 0x48)
> +     if (ret < 0)
> +             goto failed;
> +     for (reg_index = 0; reg_index < QM1D1C0042_NUM_REG_ROWS; reg_index++)
> +             if (val == reg_initval[reg_index][0x00]) break;
> +     if (reg_index >= QM1D1C0042_NUM_REG_ROWS)
>               goto failed;
> +     memcpy(state->regs, reg_initval[reg_index], QM1D1C0042_NUM_REGS);
>       usleep_range(2000, 3000);
> 
>       state->regs[0x0c] |= 0x40;
> diff --git a/drivers/media/usb/em28xx/Kconfig 
> b/drivers/media/usb/em28xx/Kconfig
> index e382210..d917b0a 100644
> --- a/drivers/media/usb/em28xx/Kconfig
> +++ b/drivers/media/usb/em28xx/Kconfig
> @@ -59,6 +59,8 @@ config VIDEO_EM28XX_DVB
>       select DVB_DRX39XYJ if MEDIA_SUBDRV_AUTOSELECT
>       select DVB_SI2168 if MEDIA_SUBDRV_AUTOSELECT
>       select MEDIA_TUNER_SI2157 if MEDIA_SUBDRV_AUTOSELECT
> +     select DVB_TC90522 if MEDIA_SUBDRV_AUTOSELECT
> +     select MEDIA_TUNER_QM1D1C0042 if MEDIA_SUBDRV_AUTOSELECT
>       ---help---
>         This adds support for DVB cards based on the
>         Empiatech em28xx chips.
> diff --git a/drivers/media/usb/em28xx/em28xx-cards.c 
> b/drivers/media/usb/em28xx/em28xx-cards.c
> index 930e3e3..772a8f8 100644
> --- a/drivers/media/usb/em28xx/em28xx-cards.c
> +++ b/drivers/media/usb/em28xx/em28xx-cards.c
> @@ -492,6 +492,20 @@ static struct em28xx_reg_seq terratec_t2_stick_hd[] = {
>       {-1,                             -1,   -1,     -1},
>   };
> 
> +static struct em28xx_reg_seq plex_px_bcud[] = {
> +     {EM2874_R80_GPIO_P0_CTRL,       0xff,   0xff,   0},
> +     {0x0d,                          0xff,   0xff,   0},
> +     {EM2874_R50_IR_CONFIG,          0x01,   0xff,   0},
> +     {EM28XX_R06_I2C_CLK,            0x40,   0xff,   0},
> +     {EM2874_R80_GPIO_P0_CTRL,       0xfd,   0xff,   100},
> +     {EM28XX_R12_VINENABLE,          0x20,   0x20,   0},
> +     {0x0d,                          0x42,   0xff,   1000},
> +     {EM2874_R80_GPIO_P0_CTRL,       0xfc,   0xff,   10},
> +     {EM2874_R80_GPIO_P0_CTRL,       0xfd,   0xff,   10},
> +     {0x73,                          0xfd,   0xff,   100},
> +     {-1,                            -1,     -1,     -1},
> +};
> +
>   /*
>    *  Button definitions
>    */
> @@ -2306,6 +2320,17 @@ struct em28xx_board em28xx_boards[] = {
>               .has_dvb       = 1,
>               .ir_codes      = RC_MAP_TERRATEC_SLIM_2,
>       },
> +     /* 3275:0085 PLEX PX-BCUD.
> +      * Empia EM28178, TOSHIBA TC90532XBG, Sharp QM1D1C0042 */
> +     [EM28178_BOARD_PLEX_PX_BCUD] = {
> +             .name          = "PLEX PX-BCUD",
> +             .xclk          = EM28XX_XCLK_FREQUENCY_4_3MHZ,
> +             .def_i2c_bus   = 1,
> +             .i2c_speed     = EM28XX_I2C_CLK_WAIT_ENABLE,
> +             .tuner_type    = TUNER_ABSENT,
> +             .tuner_gpio    = plex_px_bcud,
> +             .has_dvb       = 1,
> +     },
>   };
>   EXPORT_SYMBOL_GPL(em28xx_boards);
> 
> @@ -2495,6 +2520,8 @@ struct usb_device_id em28xx_id_table[] = {
>                       .driver_info = EM2861_BOARD_LEADTEK_VC100 },
>       { USB_DEVICE(0xeb1a, 0x8179),
>                       .driver_info = EM28178_BOARD_TERRATEC_T2_STICK_HD },
> +     { USB_DEVICE(0x3275, 0x0085),
> +                     .driver_info = EM28178_BOARD_PLEX_PX_BCUD },
>       { },
>   };
>   MODULE_DEVICE_TABLE(usb, em28xx_id_table);
> diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c 
> b/drivers/media/usb/em28xx/em28xx-dvb.c
> index 5d209c7..5fa25bf 100644
> --- a/drivers/media/usb/em28xx/em28xx-dvb.c
> +++ b/drivers/media/usb/em28xx/em28xx-dvb.c
> @@ -12,6 +12,8 @@
> 
>    (c) 2012 Frank Schafer <fschaefer....@googlemail.com>
> 
> + (c) 2016 Satoshi Nagahama <satt...@aim.com>
> +
>    Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
>       (c) 2004, 2005 Chris Pascoe <c.pas...@itee.uq.edu.au>
>       (c) 2004 Gerd Knorr <kra...@bytesex.org> [SuSE Labs]
> @@ -58,6 +60,8 @@
>   #include "ts2020.h"
>   #include "si2168.h"
>   #include "si2157.h"
> +#include "tc90522.h"
> +#include "qm1d1c0042.h"
> 
>   MODULE_AUTHOR("Mauro Carvalho Chehab <mche...@infradead.org>");
>   MODULE_LICENSE("GPL");
> @@ -787,6 +791,65 @@ static int em28xx_mt352_terratec_xs_init(struct 
> dvb_frontend *fe)
>       return 0;
>   }
> 
> +static void px_bcud_init(struct em28xx *dev)
> +{
> +     int i;
> +     struct {
> +             unsigned char r[4];
> +             int len;
> +     } regs1[] = {
> +             {{ 0x0e, 0x77 }, 2},
> +             {{ 0x0f, 0x77 }, 2},
> +             {{ 0x03, 0x90 }, 2},
> +     }, regs2[] = {
> +             {{ 0x07, 0x01 }, 2},
> +             {{ 0x08, 0x10 }, 2},
> +             {{ 0x13, 0x00 }, 2},
> +             {{ 0x17, 0x00 }, 2},
> +             {{ 0x03, 0x01 }, 2},
> +             {{ 0x10, 0xb1 }, 2},
> +             {{ 0x11, 0x40 }, 2},
> +             {{ 0x85, 0x7a }, 2},
> +             {{ 0x87, 0x04 }, 2},
> +     };
> +     static struct em28xx_reg_seq gpio[] = {
> +             {EM28XX_R06_I2C_CLK,            0x40,   0xff,   300},
> +             {EM2874_R80_GPIO_P0_CTRL,       0xfd,   0xff,   60},
> +             {EM28XX_R15_RGAIN,              0x20,   0xff,   0},
> +             {EM28XX_R16_GGAIN,              0x20,   0xff,   0},
> +             {EM28XX_R17_BGAIN,              0x20,   0xff,   0},
> +             {EM28XX_R18_ROFFSET,            0x00,   0xff,   0},
> +             {EM28XX_R19_GOFFSET,            0x00,   0xff,   0},
> +             {EM28XX_R1A_BOFFSET,            0x00,   0xff,   0},
> +             {EM28XX_R23_UOFFSET,            0x00,   0xff,   0},
> +             {EM28XX_R24_VOFFSET,            0x00,   0xff,   0},
> +             {EM28XX_R26_COMPR,              0x00,   0xff,   0},
> +             {0x13,                          0x08,   0xff,   0},
> +             {EM28XX_R12_VINENABLE,          0x27,   0xff,   0},
> +             {EM28XX_R0C_USBSUSP,            0x10,   0xff,   0},
> +             {EM28XX_R27_OUTFMT,             0x00,   0xff,   0},
> +             {EM28XX_R10_VINMODE,            0x00,   0xff,   0},
> +             {EM28XX_R11_VINCTRL,            0x11,   0xff,   0},
> +             {EM2874_R50_IR_CONFIG,          0x01,   0xff,   0},
> +             {EM2874_R5F_TS_ENABLE,          0x80,   0xff,   0},
> +             {EM28XX_R06_I2C_CLK,            0x46,   0xff,   0},
> +     };
> +     em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x46);
> +     /* sleeping ISDB-T */
> +     dev->dvb->i2c_client_demod->addr = 0x14;
> +     for (i = 0; i < ARRAY_SIZE(regs1); i++)
> +             i2c_master_send(dev->dvb->i2c_client_demod, regs1[i].r, 
> regs1[i].len);
> +     /* sleeping ISDB-S */
> +     dev->dvb->i2c_client_demod->addr = 0x15;
> +     for (i = 0; i < ARRAY_SIZE(regs2); i++)
> +             i2c_master_send(dev->dvb->i2c_client_demod, regs2[i].r, 
> regs2[i].len);
> +     for (i = 0; i < ARRAY_SIZE(gpio); i++) {
> +             em28xx_write_reg_bits(dev, gpio[i].reg, gpio[i].val, 
> gpio[i].mask);
> +             if (gpio[i].sleep > 0)
> +                     msleep(gpio[i].sleep);
> +     }
> +};
> +
>   static struct mt352_config terratec_xs_mt352_cfg = {
>       .demod_address = (0x1e >> 1),
>       .no_tuner = 1,
> @@ -1762,6 +1825,60 @@ static int em28xx_dvb_init(struct em28xx *dev)
>                       dvb->i2c_client_tuner = client;
>               }
>               break;
> +     case EM28178_BOARD_PLEX_PX_BCUD:
> +             {
> +                     struct i2c_client *client;
> +                     struct i2c_board_info info;
> +                     struct tc90522_config tc90522_config;
> +                        struct qm1d1c0042_config qm1d1c0042_config;
> +
> +                     /* attach demod */
> +                     memset(&tc90522_config, 0 ,sizeof(tc90522_config));
> +                     memset(&info, 0, sizeof(struct i2c_board_info));
> +                     strlcpy(info.type, "tc90522sat", I2C_NAME_SIZE);
> +                     info.addr = 0x15;
> +                     info.platform_data = &tc90522_config;
> +                     request_module("tc90522");
> +                     client = 
> i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
> +                     if (client == NULL || client->dev.driver == NULL) {
> +                             result = -ENODEV;
> +                             goto out_free;
> +                     }
> +                     dvb->i2c_client_demod = client;
> +                     if (!try_module_get(client->dev.driver->owner)) {
> +                             i2c_unregister_device(client);
> +                             result = -ENODEV;
> +                             goto out_free;
> +                     }
> +
> +                     /* attach tuner */
> +                     memset(&qm1d1c0042_config, 0 
> ,sizeof(qm1d1c0042_config));
> +                     qm1d1c0042_config.fe = tc90522_config.fe;
> +                     qm1d1c0042_config.lpf = 1;
> +                     memset(&info, 0, sizeof(struct i2c_board_info));
> +                     strlcpy(info.type, "qm1d1c0042", I2C_NAME_SIZE);
> +                     info.addr = 0x61;
> +                             info.platform_data = &qm1d1c0042_config;
> +                             request_module(info.type);
> +                             client = 
> i2c_new_device(tc90522_config.tuner_i2c, &info);
> +                        if (client == NULL || client->dev.driver == NULL) {
> +                                
> module_put(dvb->i2c_client_demod->dev.driver->owner);
> +                                i2c_unregister_device(dvb->i2c_client_demod);
> +                                result = -ENODEV;
> +                                goto out_free;
> +                        }
> +                        dvb->i2c_client_tuner = client;
> +                        if (!try_module_get(client->dev.driver->owner)) {
> +                                i2c_unregister_device(client);
> +                                
> module_put(dvb->i2c_client_demod->dev.driver->owner);
> +                                i2c_unregister_device(dvb->i2c_client_demod);
> +                                result = -ENODEV;
> +                                goto out_free;
> +                        }
> +                     dvb->fe[0] = tc90522_config.fe;
> +                     px_bcud_init(dev);
> +             }
> +             break;
>       default:
>               em28xx_errdev("/2: The frontend of your DVB/ATSC card"
>                               " isn't supported yet\n");
> diff --git a/drivers/media/usb/em28xx/em28xx.h 
> b/drivers/media/usb/em28xx/em28xx.h
> index 2674449..9ad1240 100644
> --- a/drivers/media/usb/em28xx/em28xx.h
> +++ b/drivers/media/usb/em28xx/em28xx.h
> @@ -145,6 +145,7 @@
>   #define EM2861_BOARD_LEADTEK_VC100                95
>   #define EM28178_BOARD_TERRATEC_T2_STICK_HD        96
>   #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008     97
> +#define EM28178_BOARD_PLEX_PX_BCUD                98
> 
>   /* Limits minimum and default number of buffers */
>   #define EM28XX_MIN_BUF 4
> 

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