serial: 8250: 8250_omap: Clear UART_HAS_RHR_IT_DIS bit
authorRonald Wahl <ronald.wahl@raritan.com>
Tue, 31 Oct 2023 11:09:09 +0000 (12:09 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 Dec 2023 17:45:33 +0000 (18:45 +0100)
commit70dc9a482fbbf04c1952c4446434909a8d190ede
treee25c726fd123c89f106eb123ff6fe7a09dfc8102
parent98b0ca904c804125a9bc56bd188c0cb6c1bae776
serial: 8250: 8250_omap: Clear UART_HAS_RHR_IT_DIS bit

commit 8973ab7a2441b286218f4a5c4c33680e2f139996 upstream.

This fixes commit 439c7183e5b9 ("serial: 8250: 8250_omap: Disable RX
interrupt after DMA enable") which unfortunately set the
UART_HAS_RHR_IT_DIS bit in the UART_OMAP_IER2 register and never
cleared it.

Cc: stable@vger.kernel.org
Fixes: 439c7183e5b9 ("serial: 8250: 8250_omap: Disable RX interrupt after DMA enable")
Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20231031110909.11695-1-rwahl@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_omap.c