@@ -264,8 +264,8 @@ static bool qcom_geni_serial_secondary_active(struct uart_port *uport)
return readl(uport->membase + SE_GENI_STATUS) & S_GENI_CMD_ACTIVE;
}
-static bool qcom_geni_serial_poll_bit(struct uart_port *uport,
- unsigned int offset, u32 field, bool set)
+static bool qcom_geni_serial_poll_bitfield(struct uart_port *uport,
+ unsigned int offset, u32 field, u32 val)
{
u32 reg;
unsigned long timeout_us;
@@ -295,7 +295,7 @@ static bool qcom_geni_serial_poll_bit(struct uart_port *uport,
timeout_us = DIV_ROUND_UP(timeout_us, 10) * 10;
while (timeout_us) {
reg = readl(uport->membase + offset);
- if ((bool)(reg & field) == set)
+ if ((reg & field) == val)
return true;
udelay(10);
timeout_us -= 10;
@@ -303,6 +303,12 @@ static bool qcom_geni_serial_poll_bit(struct uart_port *uport,
return false;
}
+static bool qcom_geni_serial_poll_bit(struct uart_port *uport,
+ unsigned int offset, u32 field, bool set)
+{
+ return qcom_geni_serial_poll_bitfield(uport, offset, field, set ? field : 0);
+}
+
static void qcom_geni_serial_setup_tx(struct uart_port *uport, u32 xmit_size)
{
u32 m_cmd;
With a small modification the qcom_geni_serial_poll_bit() function could be used to poll more than just a single bit. Let's generalize it. We'll make the qcom_geni_serial_poll_bit() into just a wrapper of the general function. Signed-off-by: Douglas Anderson <dianders@chromium.org> --- The new function isn't used yet (except by the wrapper) but will be used in a future change. (no changes since v2) Changes in v2: - New drivers/tty/serial/qcom_geni_serial.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)