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platform_kernel-5.15
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tty: serial: ifx6x60: Use helper variable for dev 

The &spi->dev is used so many times that the code gets
visibly better by introducing a simple dev helper variable.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200311083131.693908-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Linus Walleij 2020-03-11 09:31:30 +01:00 committed by Greg Kroah-Hartman
parent 2607d7246f
commit b685e6febd
1 changed files with 23 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/tty/serial/ifx6x60.c
View File

@ -992,22 +992,23 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
int srdy;
struct ifx_modem_platform_data *pl_data;
struct ifx_spi_device *ifx_dev;
struct device *dev = &spi->dev;
if (saved_ifx_dev) {
dev_dbg(&spi->dev, "ignoring subsequent detection");
dev_dbg(dev, "ignoring subsequent detection");
return -ENODEV;
}
pl_data = dev_get_platdata(&spi->dev);
pl_data = dev_get_platdata(dev);
if (!pl_data) {
dev_err(&spi->dev, "missing platform data!");
dev_err(dev, "missing platform data!");
return -ENODEV;
}
/* initialize structure to hold our device variables */
ifx_dev = kzalloc(sizeof(struct ifx_spi_device), GFP_KERNEL);
if (!ifx_dev) {
dev_err(&spi->dev, "spi device allocation failed");
dev_err(dev, "spi device allocation failed");
return -ENOMEM;
}
saved_ifx_dev = ifx_dev;
@ -1026,7 +1027,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
spi->bits_per_word = spi_bpw;
ret = spi_setup(spi);
if (ret) {
dev_err(&spi->dev, "SPI setup wasn't successful %d", ret);
dev_err(dev, "SPI setup wasn't successful %d", ret);
kfree(ifx_dev);
return -ENODEV;
}
@ -1049,7 +1050,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
&ifx_dev->tx_bus,
GFP_KERNEL);
if (!ifx_dev->tx_buffer) {
dev_err(&spi->dev, "DMA-TX buffer allocation failed");
dev_err(dev, "DMA-TX buffer allocation failed");
ret = -ENOMEM;
goto error_ret;
}
@ -1058,7 +1059,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
&ifx_dev->rx_bus,
GFP_KERNEL);
if (!ifx_dev->rx_buffer) {
dev_err(&spi->dev, "DMA-RX buffer allocation failed");
dev_err(dev, "DMA-RX buffer allocation failed");
ret = -ENOMEM;
goto error_ret;
}
@ -1075,7 +1076,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
/* create our tty port */
ret = ifx_spi_create_port(ifx_dev);
if (ret != 0) {
dev_err(&spi->dev, "create default tty port failed");
dev_err(dev, "create default tty port failed");
goto error_ret;
}
@ -1085,21 +1086,21 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ifx_dev->gpio.srdy = pl_data->srdy;
ifx_dev->gpio.reset_out = pl_data->rst_out;
dev_info(&spi->dev, "gpios %d, %d, %d, %d, %d",
dev_info(dev, "gpios %d, %d, %d, %d, %d",
ifx_dev->gpio.reset, ifx_dev->gpio.po, ifx_dev->gpio.mrdy,
ifx_dev->gpio.srdy, ifx_dev->gpio.reset_out);
/* Configure gpios */
ret = gpio_request(ifx_dev->gpio.reset, "ifxModem");
if (ret < 0) {
dev_err(&spi->dev, "Unable to allocate GPIO%d (RESET)",
dev_err(dev, "Unable to allocate GPIO%d (RESET)",
ifx_dev->gpio.reset);
goto error_ret;
}
ret += gpio_direction_output(ifx_dev->gpio.reset, 0);
ret += gpio_export(ifx_dev->gpio.reset, 1);
if (ret) {
dev_err(&spi->dev, "Unable to configure GPIO%d (RESET)",
dev_err(dev, "Unable to configure GPIO%d (RESET)",
ifx_dev->gpio.reset);
ret = -EBUSY;
goto error_ret2;
@ -1109,7 +1110,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret += gpio_direction_output(ifx_dev->gpio.po, 0);
ret += gpio_export(ifx_dev->gpio.po, 1);
if (ret) {
dev_err(&spi->dev, "Unable to configure GPIO%d (ON)",
dev_err(dev, "Unable to configure GPIO%d (ON)",
ifx_dev->gpio.po);
ret = -EBUSY;
goto error_ret3;
@ -1117,14 +1118,14 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret = gpio_request(ifx_dev->gpio.mrdy, "ifxModem");
if (ret < 0) {
dev_err(&spi->dev, "Unable to allocate GPIO%d (MRDY)",
dev_err(dev, "Unable to allocate GPIO%d (MRDY)",
ifx_dev->gpio.mrdy);
goto error_ret3;
}
ret += gpio_export(ifx_dev->gpio.mrdy, 1);
ret += gpio_direction_output(ifx_dev->gpio.mrdy, 0);
if (ret) {
dev_err(&spi->dev, "Unable to configure GPIO%d (MRDY)",
dev_err(dev, "Unable to configure GPIO%d (MRDY)",
ifx_dev->gpio.mrdy);
ret = -EBUSY;
goto error_ret4;
@ -1132,7 +1133,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret = gpio_request(ifx_dev->gpio.srdy, "ifxModem");
if (ret < 0) {
dev_err(&spi->dev, "Unable to allocate GPIO%d (SRDY)",
dev_err(dev, "Unable to allocate GPIO%d (SRDY)",
ifx_dev->gpio.srdy);
ret = -EBUSY;
goto error_ret4;
@ -1140,7 +1141,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret += gpio_export(ifx_dev->gpio.srdy, 1);
ret += gpio_direction_input(ifx_dev->gpio.srdy);
if (ret) {
dev_err(&spi->dev, "Unable to configure GPIO%d (SRDY)",
dev_err(dev, "Unable to configure GPIO%d (SRDY)",
ifx_dev->gpio.srdy);
ret = -EBUSY;
goto error_ret5;
@ -1148,14 +1149,14 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ret = gpio_request(ifx_dev->gpio.reset_out, "ifxModem");
if (ret < 0) {
dev_err(&spi->dev, "Unable to allocate GPIO%d (RESET_OUT)",
dev_err(dev, "Unable to allocate GPIO%d (RESET_OUT)",
ifx_dev->gpio.reset_out);
goto error_ret5;
}
ret += gpio_export(ifx_dev->gpio.reset_out, 1);
ret += gpio_direction_input(ifx_dev->gpio.reset_out);
if (ret) {
dev_err(&spi->dev, "Unable to configure GPIO%d (RESET_OUT)",
dev_err(dev, "Unable to configure GPIO%d (RESET_OUT)",
ifx_dev->gpio.reset_out);
ret = -EBUSY;
goto error_ret6;
@ -1166,7 +1167,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
IRQF_TRIGGER_RISING|IRQF_TRIGGER_FALLING, DRVNAME,
ifx_dev);
if (ret) {
dev_err(&spi->dev, "Unable to get irq %x\n",
dev_err(dev, "Unable to get irq %x\n",
gpio_to_irq(ifx_dev->gpio.reset_out));
goto error_ret6;
}
@ -1177,14 +1178,14 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
ifx_spi_srdy_interrupt, IRQF_TRIGGER_RISING, DRVNAME,
ifx_dev);
if (ret) {
dev_err(&spi->dev, "Unable to get irq %x",
dev_err(dev, "Unable to get irq %x",
gpio_to_irq(ifx_dev->gpio.srdy));
goto error_ret7;
}
/* set pm runtime power state and register with power system */
pm_runtime_set_active(&spi->dev);
pm_runtime_enable(&spi->dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
/* handle case that modem is already signaling SRDY */
/* no outgoing tty open at this point, this just satisfies the