Example #1
0
/******************************************************************************
 *    function:   tuner_drv_ctl_power
 *    brief   :   power control of a driver
 *    date    :   2011.08.26
 *    author  :   M.Takahashi(*)
 *
 *    return  :    0                   normal exit
 *            :   -1                   error exit
 *    input   :   data                 setting data
 *    output  :   none
 ******************************************************************************/
int tuner_drv_ctl_power( int data )
{	
	/* power on */
	if( data == TUNER_DRV_CTL_POWON )
	{
		printk("tuner_drv_ctl_power poweron\n");
		
		/* poweron gpio config setting */
		tuner_drv_gpio_config_poweron();

		/* TMM_PWR_EN high */
		gpio_set_value(isdbtmm_pdata->gpio_en, 1);
		/* 15ms sleep */
		usleep_range(15000, 15000);
		
		/* TMM_RST high */
		gpio_set_value(isdbtmm_pdata->gpio_rst, 1);
		
		/* 2ms sleep */
		usleep_range(2000, 2000);
	}
	/* power off */
	else
	{
		printk("tuner_drv_ctl_power poweroff\n");
		
		/* poweroff gpio config setting */
		tuner_drv_gpio_config_poweroff();
		
		gpio_set_value(isdbtmm_pdata->gpio_i2c_sda, 0);
              printk("ISDBTMM POWER OFF GPIO_I2C_SDA = %d\n",gpio_get_value_cansleep(isdbtmm_pdata->gpio_i2c_sda));
                gpio_set_value(isdbtmm_pdata->gpio_spi_di, 0);
                gpio_set_value(isdbtmm_pdata->gpio_spi_do, 0);
                gpio_set_value(isdbtmm_pdata->gpio_spi_clk, 0);
                gpio_set_value(isdbtmm_pdata->gpio_spi_cs, 0);
		
		/* 1ms sleep */
		usleep_range(1000, 1000);
	
		/* TMM_RST low */
		gpio_set_value(isdbtmm_pdata->gpio_rst, 0);
		
		/* 2ms sleep */
		usleep_range(2000, 2000);
		
		/* TMM_PWR_EN low */
		gpio_set_value(isdbtmm_pdata->gpio_en, 0);
		
	}
	return 0;
}
/******************************************************************************
 *    function:   tuner_drv_ctl_power
 *    brief   :   power control of a driver
 *    date    :   2011.08.26
 *    author  :   M.Takahashi(*)
 *
 *    return  :    0                   normal exit
 *            :   -1                   error exit
 *    input   :   data                 setting data
 *    output  :   none
 ******************************************************************************/
int tuner_drv_ctl_power( int data )
{
    /* power on */
    if( data == TUNER_DRV_CTL_POWON )
    {
        DEBUG_PRINT("tuner_drv_ctl_power poweron\n");

        /* poweron gpio config setting */
        tuner_drv_gpio_config_poweron();

        /* TMM_PWR_EN high */
        gpio_set_value(GPIO_TMM_PWR_EN, GPIO_LEVEL_HIGH);

        /* 15ms sleep */
        usleep_range(15000, 15000);

        /* TMM_RST high */
        gpio_set_value(GPIO_TMM_RST, GPIO_LEVEL_HIGH);

        /* 2ms sleep */
        usleep_range(2000, 2000);
    }
    /* power off */
    else
    {
        DEBUG_PRINT("tuner_drv_ctl_power poweroff\n");

        /* poweroff gpio config setting */
        tuner_drv_gpio_config_poweroff();

        /* 1ms sleep */
        usleep_range(1000, 1000);

        /* TMM_RST low */
        gpio_set_value(GPIO_TMM_RST, GPIO_LEVEL_LOW);

        /* 2ms sleep */
        usleep_range(2000, 2000);

        /* TMM_PWR_EN low */
        gpio_set_value(GPIO_TMM_PWR_EN, GPIO_LEVEL_LOW);
    }

    return 0;
}
Example #3
0
/******************************************************************************
 *    function:   tuner_drv_ctl_power
 *    brief   :   power control of a driver
 *    date    :   2011.08.26
 *    author  :   M.Takahashi(*)
 *
 *    return  :    0                   normal exit
 *            :   -1                   error exit
 *    input   :   data                 setting data
 *    output  :   none
 ******************************************************************************/
int tuner_drv_ctl_power( int data )
{	
	int ret = 0;
	int result = 0;
	static struct regulator *tmm_vreg_l15;
	static struct regulator *tmm_vreg_l27;
	
	/* Get Power ON 1.8V Reulator */
	if ( NULL == tmm_vreg_l15 )
	{
		tmm_vreg_l15 = regulator_get ( NULL, "8921_l15" );
		if ( IS_ERR ( tmm_vreg_l15 )) 
		{
			ERROR_PRINT("could not get 8921_l15, rc = %ld",
						PTR_ERR(tmm_vreg_l15));

			tmm_vreg_l15 = NULL;
			return ret;
		}
		ret = regulator_set_voltage(tmm_vreg_l15, 1800000, 1800000 );
		if ( ret ) 
		{
			ERROR_PRINT("set voltage l15 failed, rc=%d", ret);
			tmm_vreg_l15 = NULL;
			return ret;
		}
	}
	
	/* Get Power ON 1.1V Reulator */
	if ( NULL == tmm_vreg_l27 )
	{
		tmm_vreg_l27 = regulator_get(NULL, "8921_l27");
		if ( IS_ERR ( tmm_vreg_l27 )) 
		{
			ERROR_PRINT("could not get 8921_l27, rc = %ld",
						PTR_ERR(tmm_vreg_l27));
			
			tmm_vreg_l27 = NULL;
			return ret;
		}
		ret = regulator_set_voltage(tmm_vreg_l27, 1100000, 1100000 );
		if ( ret ) 
		{
			ERROR_PRINT("set voltage l27 failed, rc=%d", ret);
			tmm_vreg_l27 = NULL;
			return ret;
		}
	}
	
	/* power on */
	if( data == TUNER_DRV_CTL_POWON )
	{
		DEBUG_PRINT("tuner_drv_ctl_power poweron");
		
		/* poweron gpio config setting */
		tuner_drv_gpio_config_poweron();
		
		/* P.ON = 1.8V */
		if ( NULL != tmm_vreg_l15 ) 
		{
			ret = regulator_enable(tmm_vreg_l15);
			if ( ret ) 
			{
				ERROR_PRINT("enable l15 failed, rc=%d", ret);
				return ret;
			}
		}
		
		/* P.ON = 1.1V */
		if ( NULL != tmm_vreg_l27 ) 
		{
			ret = regulator_enable(tmm_vreg_l27);
			if ( ret ) 
			{
				ERROR_PRINT("enable l27 failed, rc=%d", ret);
				return ret;
			}
		}
		
		/* TMM_PWR_EN high */
		ret = ice_gpiox_set(FPGA_GPIO_TMM_PWR_EN, 1);
		if (ret < 0)
		{
			ERROR_PRINT("FPGA_GPIO_TMM_PWR_EN high set error");
			return ret;
		}
		/* 15ms sleep */
		usleep_range(15000, 15000);
		
		/* TMM_RST high */
		ret = ice_gpiox_set(FPGA_GPIO_TMM_RST, 1);
		if (ret < 0)
		{
			ERROR_PRINT("FPGA_GPIO_TMM_RST high set error");
			return ret;
		}
		/* 2ms sleep */
		usleep_range(2000, 2000);
	}
	/* power off */
	else
	{
		DEBUG_PRINT("tuner_drv_ctl_power poweroff");
		
		/* poweroff gpio config setting */
		tuner_drv_gpio_config_poweroff();
		
		/* 1ms sleep */
		usleep_range(1000, 1000);
		
		/* TMM_RST low */
		ret = ice_gpiox_set(FPGA_GPIO_TMM_RST, 0);
		if (ret < 0)
		{
			ERROR_PRINT("FPGA_GPIO_TMM_RST low set error");
			result = ret;
		}
		/* 2ms sleep */
		usleep_range(2000, 2000);
		
		/* TMM_PWR_EN low */
		ret = ice_gpiox_set(FPGA_GPIO_TMM_PWR_EN, 0);
		if (ret < 0)
		{
			ERROR_PRINT("FPGA_GPIO_TMM_PWR_EN low set error");
			result = ret;
		}
		
		/* P.OFF = 1.8V */
		if (regulator_is_enabled(tmm_vreg_l15))
		{
			ret = regulator_disable(tmm_vreg_l15);
			if ( ret ) 
			{
				ERROR_PRINT("disable l15 failed, rc=%d", ret);
				result = -1;
			}
		}
		
		/* P.OFF = 1.1V */
		if (regulator_is_enabled(tmm_vreg_l27))
		{
			ret = regulator_disable(tmm_vreg_l27);
			if ( ret ) 
			{
				ERROR_PRINT("disable l27 failed, rc=%d", ret);
				result = -1;
			}
		}
	}
	return ( result );
}