[PATCH] serial: qcom_geni_serial: To correct QUP Version detection logic

[Paras Sharma <parashar@codeaurora.org>]

The current implementation reduces the sampling rate by half
if qup HW version is  greater is than 2.5 by checking if the
geni SE major version is greater than 2 and geni SE minor version
is greater than 5.

This implementation fails when the version is 3 or greater.

Hence new implementation checks if version is greater than or equal
to 0x20050000 which would work for any future version.

Signed-off-by: Paras Sharma <parashar@codeaurora.org>
---
 drivers/tty/serial/qcom_geni_serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index f0b1b47..e18b431 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1000,7 +1000,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
 	sampling_rate = UART_OVERSAMPLING;
 	/* Sampling rate is halved for IP versions >= 2.5 */
 	ver = geni_se_get_qup_hw_version(&port->se);
-	if (GENI_SE_VERSION_MAJOR(ver) >= 2 && GENI_SE_VERSION_MINOR(ver) >= 5)
+	if (ver >= 0x20050000)
 		sampling_rate /= 2;
 
 	clk_rate = get_clk_div_rate(baud, sampling_rate, &clk_div);
-- 
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