[media] pulse8-cec: some small fixes

Fix some small things:
    - clean up setup function
    - use MSGEND instead of 0xfe
    - don't assign "return value" from cec_phys_addr to err,
      it has return type void.

Signed-off-by: Johan Fjeldtvedt <jaffe1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/staging/media/pulse8-cec/pulse8-cec.c b/drivers/staging/media/pulse8-cec/pulse8-cec.c
index e27eca3..cb6a2a3 100644 (file)
--- a/drivers/staging/media/pulse8-cec/pulse8-cec.c
+++ b/drivers/staging/media/pulse8-cec/pulse8-cec.c
@@ -266,7 +266,7 @@ static int pulse8_send(struct serio *serio, const u8 *command, u8 cmd_len)
                }
        }
        if (!err)
-               err = serio_write(serio, 0xfe);
+               err = serio_write(serio, MSGEND);
 
        return err;
 }
@@ -331,40 +331,29 @@ static int pulse8_setup(struct pulse8 *pulse8, struct serio *serio,
        u8 *data = pulse8->data + 1;
        u8 cmd[2];
        int err;
+       struct tm tm;
+       time_t date;
 
        pulse8->vers = 0;
 
-       cmd[0] = MSGCODE_PING;
-       err = pulse8_send_and_wait(pulse8, cmd, 1,
-                                  MSGCODE_COMMAND_ACCEPTED, 0);
        cmd[0] = MSGCODE_FIRMWARE_VERSION;
-       if (!err)
-               err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 2);
+       err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 2);
        if (err)
                return err;
-
        pulse8->vers = (data[0] << 8) | data[1];
-
        dev_info(pulse8->dev, "Firmware version %04x\n", pulse8->vers);
        if (pulse8->vers < 2)
                return 0;
 
        cmd[0] = MSGCODE_GET_BUILDDATE;
-       if (!err)
-               err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 4);
-       if (!err) {
-               time_t date = (data[0] << 24) | (data[1] << 16) |
-                       (data[2] << 8) | data[3];
-               struct tm tm;
-
-               time_to_tm(date, 0, &tm);
-
-               dev_info(pulse8->dev, "Firmware build date %04ld.%02d.%02d %02d:%02d:%02d\n",
-                        tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
-                        tm.tm_hour, tm.tm_min, tm.tm_sec);
-       }
+       err = pulse8_send_and_wait(pulse8, cmd, 1, cmd[0], 4);
        if (err)
                return err;
+       date = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+       time_to_tm(date, 0, &tm);
+       dev_info(pulse8->dev, "Firmware build date %04ld.%02d.%02d %02d:%02d:%02d\n",
+                tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+                tm.tm_hour, tm.tm_min, tm.tm_sec);
 
        dev_dbg(pulse8->dev, "Persistent config:\n");
        cmd[0] = MSGCODE_GET_AUTO_ENABLED;
@@ -456,8 +445,6 @@ static int pulse8_apply_persistent_config(struct pulse8 *pulse8,
                return err;
 
        cec_s_phys_addr(pulse8->adap, pa, false);
-       if (err)
-               return err;
 
        return 0;
 }