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Subject[PATCH 06/27] Blackfin Serial Driver: Fix bug - should suspend/resume/remove all uart ports.
Date
From: Sonic Zhang <sonic.zhang@analog.com>

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
---
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;
}


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