[PATCH 06/27] Blackfin Serial Driver: Fix bug - should suspend/resume/remove all uart ports.
From: Alan Cox <hidden>
Date: 2008-10-10 10:48:53
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Sonic Zhang <redacted> Signed-off-by: Sonic Zhang <redacted> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Alan Cox <redacted> --- drivers/serial/bfin_5xx.c | 39 ++++++++++++++++++++++----------------- 1 files changed, 22 insertions(+), 17 deletions(-)
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 4a023c6..04eeef0 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c@@ -1100,20 +1100,26 @@ static struct uart_driver bfin_serial_reg = { static int bfin_serial_suspend(struct platform_device *dev, pm_message_t state) { - struct bfin_serial_port *uart = platform_get_drvdata(dev); + int i; - if (uart) - uart_suspend_port(&bfin_serial_reg, &uart->port); + for (i = 0; i < nr_ports; i++) { + if (bfin_serial_ports[i].port.dev != &dev->dev) + continue; + uart_suspend_port(&bfin_serial_reg, &bfin_serial_ports[i].port); + } return 0; } static int bfin_serial_resume(struct platform_device *dev) { - struct bfin_serial_port *uart = platform_get_drvdata(dev); + int i; - if (uart) - uart_resume_port(&bfin_serial_reg, &uart->port); + for (i = 0; i < nr_ports; i++) { + if (bfin_serial_ports[i].port.dev != &dev->dev) + continue; + uart_resume_port(&bfin_serial_reg, &bfin_serial_ports[i].port); + } return 0; }
@@ -1133,27 +1139,26 @@ static int bfin_serial_probe(struct platform_device *dev) continue; bfin_serial_ports[i].port.dev = &dev->dev; uart_add_one_port(&bfin_serial_reg, &bfin_serial_ports[i].port); - platform_set_drvdata(dev, &bfin_serial_ports[i]); } } return 0; } -static int bfin_serial_remove(struct platform_device *pdev) +static int bfin_serial_remove(struct platform_device *dev) { - struct bfin_serial_port *uart = platform_get_drvdata(pdev); - + int i; + for (i = 0; i < nr_ports; i++) { + if (bfin_serial_ports[i].port.dev != &dev->dev) + continue; + uart_remove_one_port(&bfin_serial_reg, &bfin_serial_ports[i].port); + bfin_serial_ports[i].port.dev = NULL; #ifdef CONFIG_SERIAL_BFIN_CTSRTS - gpio_free(uart->cts_pin); - gpio_free(uart->rts_pin); + gpio_free(bfin_serial_ports[i].cts_pin); + gpio_free(bfin_serial_ports[i].rts_pin); #endif - - platform_set_drvdata(pdev, NULL); - - if (uart) - uart_remove_one_port(&bfin_serial_reg, &uart->port); + } return 0; }