linux/drivers/tty/serial, branch v3.0.44

pch_uart: Fix parity setting issue

2012-10-02T16:47:53Z

commit 38bd2a1ac736901d1cf4971c78ef952ba92ef78b upstream. Parity Setting value is reverse. E.G. In case of setting ODD parity, EVEN value is set. This patch inverts "if" condition. Signed-off-by: Tomoya MORINAGA Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

pch_uart: Fix rx error interrupt setting issue

2012-10-02T16:47:53Z

commit 9539dfb7ac1c84522fe1f79bb7dac2990f3de44a upstream. Rx Error interrupt(E.G. parity error) is not enabled. So, when parity error occurs, error interrupt is not occurred. As a result, the received data is not dropped. This patch adds enable/disable rx error interrupt code. Signed-off-by: Tomoya MORINAGA Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

pch_uart: Fix missing break for 16 byte fifo

2012-10-02T16:47:53Z

commit 9bc03743fff0770dc5a5324ba92e67cc377f16ca upstream. Otherwise we fall back to the wrong value. Reported-by: Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44091 Signed-off-by: Alan Cox Signed-off-by: Tomoya MORINAGA Signed-off-by: Greg Kroah-Hartman

tty: Allow uart_register/unregister/register

2012-06-01T07:12:56Z

commit 1e66cded334e6cea596c72f6f650eec351b1e959 upstream. This is legitimate but because we don't clear the drv->state pointer in the unregister code causes a bogus BUG(). Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42880 Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

Add missing call to uart_update_timeout()

2012-06-01T07:12:56Z

commit 8b979f7c6bf13a57e7b6002f1175312a44773960 upstream. This patch fixes a problem reported here: http://article.gmane.org/gmane.linux.ports.arm.kernel/155242/match=auart Signed-off-by: Lothar Waßmann Signed-off-by: Greg Kroah-Hartman

pch_uart: Fix dma channel unallocated issue

2012-04-27T16:51:07Z

commit af6d17cdc8c89aeb3101f0d27cd32fc0592b40b2 upstream. This driver anticipates pch_uart_verify_port() is not called during installation. However, actually pch_uart_verify_port() is called during installation. As a result, memory access violation occurs like below. 0. initial value: use_dma=0 1. starup() - dma channel is not allocated because use_dma=0 2. pch_uart_verify_port() - Set use_dma=1 3. UART processing acts DMA mode because use_dma=1 - memory access violation occurs! This patch fixes the issue. Solution: Whenever pch_uart_verify_port() is called and then dma channel is not allocated, the channel should be allocated. Signed-off-by: Tomoya MORINAGA Signed-off-by: Greg Kroah-Hartman

ARM: clps711x: serial driver hungs are a result of call disable_irq within ISR

2012-04-27T16:51:05Z

commit 7a6fbc9a887193a1e9f8658703881c528040afbc upstream. Since 2.6.30-rc1 clps711x serial driver hungs system. This is a result of call disable_irq from ISR. synchronize_irq waits for end of interrupt and goes to infinite loop. This patch fix this problem. Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

8250_pci: Fix kernel panic when pch_uart is disabled

2012-04-22T23:21:44Z

commit 64d91cfaade2155ad048fe3b65238a052e29dde4 upstream. Currently, ".setup" function is not set. As a result, when detecting our IOH's uart device without pch_uart, kernel panic occurs at the following of pciserial_init_ports(). for (i = 0; i < nr_ports; i++) { if (quirk->setup(priv, board, &serial_port, i)) break; So, this patch adds the ".setup" function. We can use pci_default_setup because our IOH's uart is compatible with 16550. Signed-off-by: Tomoya MORINAGA Acked-by: Alan Cox Signed-off-by: Tomoya MORINAGA Signed-off-by: Greg Kroah-Hartman

pch_uart: Set PCIe bus number using probe parameter

2012-04-22T23:21:43Z

commit 6c4b47d243112e98811ce0da7bbb32cc3857dd1a upstream. Currently, PCIe bus number is set as fixed value "2". However, PCIe bus number is not always "2". This patch sets bus number using probe() parameter. Signed-off-by: Tomoya MORINAGA Signed-off-by: Tomoya MORINAGA Signed-off-by: Greg Kroah-Hartman

serial: PL011: move interrupt clearing

2012-04-22T23:21:41Z

commit c3d8b76f61586714cdc5f219ba45592a54caaa55 upstream. Commit 360f748b204275229f8398cb2f9f53955db1503b "serial: PL011: clear pending interrupts" attempts to clear interrupts by writing to a yet-unassigned memory address. This fixes the issue. The breaking patch is marked for stable so should be carried along with the other patch. Cc: Shreshtha Kumar Sahu Cc: Russell King Cc: Nicolas Pitre Reported-by: Viresh Kumar Signed-off-by: Linus Walleij Tested-by: Grant Likely Signed-off-by: Greg Kroah-Hartman