[U-Boot] [PATCH] serial: lpuart: Proper device identification

[Sriram Dash]

Identify and distinguish between platform device type of MX7ULP
and LS1021A.

This is a fix to: 7edf5c45 serial: lpuart: add i.MX7ULP support

Signed-off-by: Sriram Dash <sriram.d...@nxp.com>
Acked-by: Peng Fan <peng....@nxp.com>
---
 drivers/serial/serial_lpuart.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
index 382f8ba..536d30f 100644
--- a/drivers/serial/serial_lpuart.c
+++ b/drivers/serial/serial_lpuart.c
@@ -265,11 +265,9 @@ static int _lpuart32_serial_getc(struct 
lpuart_serial_platdata *plat)
 
        lpuart_read32(plat->flags, &base->data, &val);
 
-       if (plat->devtype & DEV_MX7ULP) {
-               lpuart_read32(plat->flags, &base->stat, &stat);
-               if (stat & STAT_OR)
-                       lpuart_write32(plat->flags, &base->stat, STAT_OR);
-       }
+       lpuart_read32(plat->flags, &base->stat, &stat);
+       if (stat & STAT_OR)
+               lpuart_write32(plat->flags, &base->stat, STAT_OR);
 
        return val & 0x3ff;
 }
@@ -280,10 +278,8 @@ static void _lpuart32_serial_putc(struct 
lpuart_serial_platdata *plat,
        struct lpuart_fsl_reg32 *base = plat->reg;
        u32 stat;
 
-       if (plat->devtype & DEV_MX7ULP) {
-               if (c == '\n')
-                       serial_putc('\r');
-       }
+       if (c == '\n')
+               serial_putc('\r');
 
        while (true) {
                lpuart_read32(plat->flags, &base->stat, &stat);
@@ -330,7 +326,7 @@ static int _lpuart32_serial_init(struct 
lpuart_serial_platdata *plat)
 
        lpuart_write32(plat->flags, &base->match, 0);
 
-       if (plat->devtype & DEV_MX7ULP) {
+       if (plat->devtype == DEV_MX7ULP) {
                _lpuart32_serial_setbrg_7ulp(plat, gd->baudrate);
        } else {
                /* provide data bits, parity, stop bit, etc */
@@ -347,7 +343,7 @@ static int lpuart_serial_setbrg(struct udevice *dev, int 
baudrate)
        struct lpuart_serial_platdata *plat = dev->platdata;
 
        if (is_lpuart32(dev)) {
-               if (plat->devtype & DEV_MX7ULP)
+               if (plat->devtype == DEV_MX7ULP)
                        _lpuart32_serial_setbrg_7ulp(plat, baudrate);
                else
                        _lpuart32_serial_setbrg(plat, baudrate);
-- 
1.9.1

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