diff options
author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2016-09-01 10:24:19 +0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-01 21:04:57 +0200 |
commit | 2cb78eab2376a36d688f6740d60c63739149a4a3 (patch) | |
tree | cd263c023a0617b3e9bda6a931ad403bf04a242c | |
parent | 41d98b5da92f8b7bd11885e7c4797197b5f3e2c3 (diff) | |
download | op-kernel-dev-2cb78eab2376a36d688f6740d60c63739149a4a3.zip op-kernel-dev-2cb78eab2376a36d688f6740d60c63739149a4a3.tar.gz |
serial: 8250_dw: Use an unified new dev variable in probe
Use an unified new dev variable instead of &pdev->dev and p->dev
in probe function.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index b022f5a..47e6d08 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -360,18 +360,19 @@ static int dw8250_probe(struct platform_device *pdev) struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); int irq = platform_get_irq(pdev, 0); struct uart_port *p = &uart.port; + struct device *dev = &pdev->dev; struct dw8250_data *data; int err; u32 val; if (!regs) { - dev_err(&pdev->dev, "no registers defined\n"); + dev_err(dev, "no registers defined\n"); return -EINVAL; } if (irq < 0) { if (irq != -EPROBE_DEFER) - dev_err(&pdev->dev, "cannot get irq\n"); + dev_err(dev, "cannot get irq\n"); return irq; } @@ -382,16 +383,16 @@ static int dw8250_probe(struct platform_device *pdev) p->pm = dw8250_do_pm; p->type = PORT_8250; p->flags = UPF_SHARE_IRQ | UPF_FIXED_PORT; - p->dev = &pdev->dev; + p->dev = dev; p->iotype = UPIO_MEM; p->serial_in = dw8250_serial_in; p->serial_out = dw8250_serial_out; - p->membase = devm_ioremap(&pdev->dev, regs->start, resource_size(regs)); + p->membase = devm_ioremap(dev, regs->start, resource_size(regs)); if (!p->membase) return -ENOMEM; - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -399,57 +400,57 @@ static int dw8250_probe(struct platform_device *pdev) data->usr_reg = DW_UART_USR; p->private_data = data; - data->uart_16550_compatible = device_property_read_bool(p->dev, + data->uart_16550_compatible = device_property_read_bool(dev, "snps,uart-16550-compatible"); - err = device_property_read_u32(p->dev, "reg-shift", &val); + err = device_property_read_u32(dev, "reg-shift", &val); if (!err) p->regshift = val; - err = device_property_read_u32(p->dev, "reg-io-width", &val); + err = device_property_read_u32(dev, "reg-io-width", &val); if (!err && val == 4) { p->iotype = UPIO_MEM32; p->serial_in = dw8250_serial_in32; p->serial_out = dw8250_serial_out32; } - if (device_property_read_bool(p->dev, "dcd-override")) { + if (device_property_read_bool(dev, "dcd-override")) { /* Always report DCD as active */ data->msr_mask_on |= UART_MSR_DCD; data->msr_mask_off |= UART_MSR_DDCD; } - if (device_property_read_bool(p->dev, "dsr-override")) { + if (device_property_read_bool(dev, "dsr-override")) { /* Always report DSR as active */ data->msr_mask_on |= UART_MSR_DSR; data->msr_mask_off |= UART_MSR_DDSR; } - if (device_property_read_bool(p->dev, "cts-override")) { + if (device_property_read_bool(dev, "cts-override")) { /* Always report CTS as active */ data->msr_mask_on |= UART_MSR_CTS; data->msr_mask_off |= UART_MSR_DCTS; } - if (device_property_read_bool(p->dev, "ri-override")) { + if (device_property_read_bool(dev, "ri-override")) { /* Always report Ring indicator as inactive */ data->msr_mask_off |= UART_MSR_RI; data->msr_mask_off |= UART_MSR_TERI; } /* Always ask for fixed clock rate from a property. */ - device_property_read_u32(p->dev, "clock-frequency", &p->uartclk); + device_property_read_u32(dev, "clock-frequency", &p->uartclk); /* If there is separate baudclk, get the rate from it. */ - data->clk = devm_clk_get(&pdev->dev, "baudclk"); + data->clk = devm_clk_get(dev, "baudclk"); if (IS_ERR(data->clk) && PTR_ERR(data->clk) != -EPROBE_DEFER) - data->clk = devm_clk_get(&pdev->dev, NULL); + data->clk = devm_clk_get(dev, NULL); if (IS_ERR(data->clk) && PTR_ERR(data->clk) == -EPROBE_DEFER) return -EPROBE_DEFER; if (!IS_ERR_OR_NULL(data->clk)) { err = clk_prepare_enable(data->clk); if (err) - dev_warn(&pdev->dev, "could not enable optional baudclk: %d\n", + dev_warn(dev, "could not enable optional baudclk: %d\n", err); else p->uartclk = clk_get_rate(data->clk); @@ -457,11 +458,11 @@ static int dw8250_probe(struct platform_device *pdev) /* If no clock rate is defined, fail. */ if (!p->uartclk) { - dev_err(&pdev->dev, "clock rate not defined\n"); + dev_err(dev, "clock rate not defined\n"); return -EINVAL; } - data->pclk = devm_clk_get(&pdev->dev, "apb_pclk"); + data->pclk = devm_clk_get(dev, "apb_pclk"); if (IS_ERR(data->pclk) && PTR_ERR(data->pclk) == -EPROBE_DEFER) { err = -EPROBE_DEFER; goto err_clk; @@ -469,12 +470,12 @@ static int dw8250_probe(struct platform_device *pdev) if (!IS_ERR(data->pclk)) { err = clk_prepare_enable(data->pclk); if (err) { - dev_err(&pdev->dev, "could not enable apb_pclk\n"); + dev_err(dev, "could not enable apb_pclk\n"); goto err_clk; } } - data->rst = devm_reset_control_get_optional(&pdev->dev, NULL); + data->rst = devm_reset_control_get_optional(dev, NULL); if (IS_ERR(data->rst) && PTR_ERR(data->rst) == -EPROBE_DEFER) { err = -EPROBE_DEFER; goto err_pclk; @@ -506,8 +507,8 @@ static int dw8250_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); return 0; |