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Subject[PATCH v11 14/19] serial: amba-pl011: Move pl011_hwinit()
Date
This patch hoists pl011_hwinit() further up within the driver. This
permits a later patch to introduce an extended .poll_init callback
that does more than pure hardware initialization.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
---
drivers/tty/serial/amba-pl011.c | 78 ++++++++++++++++++++---------------------
1 file changed, 39 insertions(+), 39 deletions(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 02016fc..0b06dcf 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1425,6 +1425,45 @@ static void pl011_break_ctl(struct uart_port *port, int break_state)
spin_unlock_irqrestore(&uap->port.lock, flags);
}

+static int pl011_hwinit(struct uart_port *port)
+{
+ struct uart_amba_port *uap =
+ container_of(port, struct uart_amba_port, port);
+ int retval;
+
+ /* Optionaly enable pins to be muxed in and configured */
+ pinctrl_pm_select_default_state(port->dev);
+
+ /*
+ * Try to enable the clock producer.
+ */
+ retval = clk_prepare_enable(uap->clk);
+ if (retval)
+ return retval;
+
+ uap->port.uartclk = clk_get_rate(uap->clk);
+
+ /* Clear pending error and receive interrupts */
+ writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS |
+ UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
+
+ /*
+ * Save interrupts enable mask, and enable RX interrupts in case if
+ * the interrupt is used for NMI entry.
+ */
+ uap->im = readw(uap->port.membase + UART011_IMSC);
+ writew(UART011_RTIM | UART011_RXIM, uap->port.membase + UART011_IMSC);
+
+ if (dev_get_platdata(uap->port.dev)) {
+ struct amba_pl011_data *plat;
+
+ plat = dev_get_platdata(uap->port.dev);
+ if (plat->init)
+ plat->init();
+ }
+ return 0;
+}
+
#ifdef CONFIG_CONSOLE_POLL

static void pl011_quiesce_irqs(struct uart_port *port)
@@ -1483,45 +1522,6 @@ static void pl011_put_poll_char(struct uart_port *port,

#endif /* CONFIG_CONSOLE_POLL */

-static int pl011_hwinit(struct uart_port *port)
-{
- struct uart_amba_port *uap =
- container_of(port, struct uart_amba_port, port);
- int retval;
-
- /* Optionaly enable pins to be muxed in and configured */
- pinctrl_pm_select_default_state(port->dev);
-
- /*
- * Try to enable the clock producer.
- */
- retval = clk_prepare_enable(uap->clk);
- if (retval)
- return retval;
-
- uap->port.uartclk = clk_get_rate(uap->clk);
-
- /* Clear pending error and receive interrupts */
- writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS |
- UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
-
- /*
- * Save interrupts enable mask, and enable RX interrupts in case if
- * the interrupt is used for NMI entry.
- */
- uap->im = readw(uap->port.membase + UART011_IMSC);
- writew(UART011_RTIM | UART011_RXIM, uap->port.membase + UART011_IMSC);
-
- if (dev_get_platdata(uap->port.dev)) {
- struct amba_pl011_data *plat;
-
- plat = dev_get_platdata(uap->port.dev);
- if (plat->init)
- plat->init();
- }
- return 0;
-}
-
static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h)
{
writew(lcr_h, uap->port.membase + uap->lcrh_rx);
--
1.9.3


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