[PATCH 10/12] tty: amba-pl011: add support for 32-bit register access
From: Timur Tabi <hidden>
Date: 2015-11-16 17:45:12
Also in:
linux-serial
Russell King wrote:
quoted hunk ↗ jump to hunk
Add support for 32-bit register accesses to the AMBA PL011 UART. This is needed for ZTE UARTs, which require 32-bit accesses as opposed to the more normal 16-bit accesses. Signed-off-by: Russell King<redacted> --- drivers/tty/serial/amba-pl011.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index afa0de7d481f..3470a1e67bbc 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c@@ -93,6 +93,7 @@ static u16 pl011_std_offsets[REG_ARRAY_SIZE] = { struct vendor_data { const u16 *reg_offset; unsigned int ifls; + bool access_32b;
So no love for my suggestion to use port->iotype instead of this new field?
static void pl011_write(unsigned int val, const struct uart_amba_port *uap,
unsigned int reg)
{
void __iomem *addr = uap->port.membase + pl011_reg_to_offset(uap, reg);
if (uap->port.iotype == UPIO_MEM32)
writel(val, addr);
else
writew(val, addr);
}
--
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