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serial: ifx6x60: Remove driver for deprecated platform

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Intel Moorestown and Medfield are quite old Intel Atom based
32-bit platforms, which were in limited use in some Android phones,
tablets and consumer electronics more than eight years ago.

There are no bugs or problems ever reported outside from Intel
for breaking any of that platforms for years. It seems no real
users exists who run more or less fresh kernel on it. The commit
05f4434bc1 ("ASoC: Intel: remove mfld_machine") also in align
with this theory.

Due to above and to reduce a burden of supporting outdated drivers
we remove the support of outdated platforms completely.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210125150238.16980-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2021-01-25 17:02:38 +02:00 committed by Greg Kroah-Hartman
parent 0f8b29faba
commit e9103f47bf
5 changed files with 0 additions and 1528 deletions
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7
drivers/tty/serial/Kconfig
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@ -1182,13 +1182,6 @@ config SERIAL_ALTERA_UART_CONSOLE
help
Enable a Altera UART port to be the system console.
config SERIAL_IFX6X60
tristate "SPI protocol driver for Infineon 6x60 modem (EXPERIMENTAL)"
depends on GPIOLIB || COMPILE_TEST
depends on SPI && HAS_DMA
help
Support for the IFX6x60 modem devices on Intel MID platforms.
config SERIAL_PCH_UART
tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
depends on PCI && (X86_32 || MIPS || COMPILE_TEST)

1
drivers/tty/serial/Makefile
View file

@ -64,7 +64,6 @@ obj-$(CONFIG_SERIAL_TIMBERDALE) += timbuart.o
obj-$(CONFIG_SERIAL_GRLIB_GAISLER_APBUART) += apbuart.o
obj-$(CONFIG_SERIAL_ALTERA_JTAGUART) += altera_jtaguart.o
obj-$(CONFIG_SERIAL_VT8500) += vt8500_serial.o
obj-$(CONFIG_SERIAL_IFX6X60) += ifx6x60.o
obj-$(CONFIG_SERIAL_PCH_UART) += pch_uart.o
obj-$(CONFIG_SERIAL_MXS_AUART) += mxs-auart.o
obj-$(CONFIG_SERIAL_LANTIQ) += lantiq.o

1387
drivers/tty/serial/ifx6x60.c
View file

File diff suppressed because it is too large Load diff

118
drivers/tty/serial/ifx6x60.h
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@ -1,118 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/****************************************************************************
*
* Driver for the IFX spi modem.
*
* Copyright (C) 2009, 2010 Intel Corp
* Jim Stanley <jim.stanley@intel.com>
*
*****************************************************************************/
#ifndef _IFX6X60_H
#define _IFX6X60_H
struct gpio_desc;
#define DRVNAME "ifx6x60"
#define TTYNAME "ttyIFX"
#define IFX_SPI_MAX_MINORS 1
#define IFX_SPI_TRANSFER_SIZE 2048
#define IFX_SPI_FIFO_SIZE 4096
#define IFX_SPI_HEADER_OVERHEAD 4
#define IFX_RESET_TIMEOUT msecs_to_jiffies(50)
/* device flags bitfield definitions */
#define IFX_SPI_STATE_PRESENT 0
#define IFX_SPI_STATE_IO_IN_PROGRESS 1
#define IFX_SPI_STATE_IO_READY 2
#define IFX_SPI_STATE_TIMER_PENDING 3
#define IFX_SPI_STATE_IO_AVAILABLE 4
/* flow control bitfields */
#define IFX_SPI_DCD 0
#define IFX_SPI_CTS 1
#define IFX_SPI_DSR 2
#define IFX_SPI_RI 3
#define IFX_SPI_DTR 4
#define IFX_SPI_RTS 5
#define IFX_SPI_TX_FC 6
#define IFX_SPI_RX_FC 7
#define IFX_SPI_UPDATE 8
#define IFX_SPI_PAYLOAD_SIZE (IFX_SPI_TRANSFER_SIZE - \
IFX_SPI_HEADER_OVERHEAD)
#define IFX_SPI_IRQ_TYPE DETECT_EDGE_RISING
#define IFX_SPI_GPIO_TARGET 0
#define IFX_SPI_GPIO0 0x105
#define IFX_SPI_STATUS_TIMEOUT (2000*HZ)
/* values for bits in power status byte */
#define IFX_SPI_POWER_DATA_PENDING 1
#define IFX_SPI_POWER_SRDY 2
struct ifx_spi_device {
/* Our SPI device */
struct spi_device *spi_dev;
/* Port specific data */
struct kfifo tx_fifo;
spinlock_t fifo_lock;
unsigned long signal_state;
/* TTY Layer logic */
struct tty_port tty_port;
struct device *tty_dev;
int minor;
/* Low level I/O work */
struct tasklet_struct io_work_tasklet;
unsigned long flags;
dma_addr_t rx_dma;
dma_addr_t tx_dma;
int modem; /* Modem type */
int use_dma; /* provide dma-able addrs in SPI msg */
long max_hz; /* max SPI frequency */
spinlock_t write_lock;
int write_pending;
spinlock_t power_lock;
unsigned char power_status;
unsigned char *rx_buffer;
unsigned char *tx_buffer;
dma_addr_t rx_bus;
dma_addr_t tx_bus;
unsigned char spi_more;
unsigned char spi_slave_cts;
struct timer_list spi_timer;
struct spi_message spi_msg;
struct spi_transfer spi_xfer;
struct {
/* gpio lines */
struct gpio_desc *srdy; /* slave-ready gpio */
struct gpio_desc *mrdy; /* master-ready gpio */
struct gpio_desc *reset; /* modem-reset gpio */
struct gpio_desc *po; /* modem-on gpio */
struct gpio_desc *reset_out; /* modem-in-reset gpio */
struct gpio_desc *pmu_reset; /* PMU reset gpio */
/* state/stats */
int unack_srdy_int_nb;
} gpio;
/* modem reset */
unsigned long mdm_reset_state;
#define MR_START 0
#define MR_INPROGRESS 1
#define MR_COMPLETE 2
wait_queue_head_t mdm_reset_wait;
void (*swap_buf)(unsigned char *buf, int len, void *end);
};
#endif /* _IFX6X60_H */

15
include/linux/spi/ifx_modem.h
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@ -1,15 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef LINUX_IFX_MODEM_H
#define LINUX_IFX_MODEM_H
struct ifx_modem_platform_data {
unsigned short tx_pwr; /* modem power threshold */
unsigned char modem_type; /* Modem type */
unsigned long max_hz; /* max SPI frequency */
unsigned short use_dma:1; /* spi protocol driver supplies
dma-able addrs */
};
#define IFX_MODEM_6160 1
#define IFX_MODEM_6260 2
#endif