[media] drx-j: be sure to send the powerup command at device open

As drxj_close puts the device in powerdown, we need to power it up
properly at drxj_open.

This is the behavior noticed at the Windows driver.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c
index f48f320..97a3005 100644 (file)
--- a/drivers/media/dvb-frontends/drx39xyj/drxj.c
+++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c
@@ -18621,19 +18621,22 @@ ctrl_power_mode(struct drx_demod_instance *demod, enum drx_power_mode *mode)
                default:
                        return -EIO;
                }
+               ext_attr->standard = DRX_STANDARD_UNKNOWN;
+       }
 
-               if (*mode != DRXJ_POWER_DOWN_MAIN_PATH) {
-                       rc = drxj_dap_write_reg16(dev_addr, SIO_CC_PWD_MODE__A, sio_cc_pwd_mode, 0);
-                       if (rc != 0) {
-                               pr_err("error %d\n", rc);
-                               goto rw_error;
-                       }
-                       rc = drxj_dap_write_reg16(dev_addr, SIO_CC_UPDATE__A, SIO_CC_UPDATE_KEY, 0);
-                       if (rc != 0) {
-                               pr_err("error %d\n", rc);
-                               goto rw_error;
-                       }
+       if (*mode != DRXJ_POWER_DOWN_MAIN_PATH) {
+               rc = drxj_dap_write_reg16(dev_addr, SIO_CC_PWD_MODE__A, sio_cc_pwd_mode, 0);
+               if (rc != 0) {
+                       pr_err("error %d\n", rc);
+                       goto rw_error;
+               }
+               rc = drxj_dap_write_reg16(dev_addr, SIO_CC_UPDATE__A, SIO_CC_UPDATE_KEY, 0);
+               if (rc != 0) {
+                       pr_err("error %d\n", rc);
+                       goto rw_error;
+               }
 
+               if ((*mode != DRX_POWER_UP)) {
                        /* Initialize HI, wakeup key especially before put IC to sleep */
                        rc = init_hi(demod);
                        if (rc != 0) {
@@ -18648,14 +18651,13 @@ ctrl_power_mode(struct drx_demod_instance *demod, enum drx_power_mode *mode)
                                goto rw_error;
                        }
                }
-               ext_attr->standard = DRX_STANDARD_UNKNOWN;
        }
 
        common_attr->current_power_mode = *mode;
 
        return 0;
 rw_error:
-       return -EIO;
+       return rc;
 }
 
 #if 0
@@ -19838,7 +19840,7 @@ int drxj_open(struct drx_demod_instance *demod)
        struct drxu_code_info ucode_info;
        struct drx_cfg_mpeg_output cfg_mpeg_output;
        int rc;
-
+       enum drx_power_mode power_mode = DRX_POWER_UP;
 
        if ((demod == NULL) ||
            (demod->my_common_attr == NULL) ||
@@ -19856,12 +19858,16 @@ int drxj_open(struct drx_demod_instance *demod)
        ext_attr = (struct drxj_data *) demod->my_ext_attr;
        common_attr = (struct drx_common_attr *) demod->my_common_attr;
 
-       rc = power_up_device(demod);
+       rc = ctrl_power_mode(demod, &power_mode);
        if (rc != 0) {
                pr_err("error %d\n", rc);
                goto rw_error;
        }
-       common_attr->current_power_mode = DRX_POWER_UP;
+       if (power_mode != DRX_POWER_UP) {
+               rc = -EINVAL;
+               pr_err("failed to powerup device\n");
+               goto rw_error;
+       }
 
        /* has to be in front of setIqmAf and setOrxNsuAox */
        rc = get_device_capabilities(demod);
@@ -20797,6 +20803,7 @@ struct dvb_frontend *drx39xxj_attach(struct i2c_adapter *i2c)
        demod->my_common_attr->microcode_file = DRX39XX_MAIN_FIRMWARE;
        demod->my_common_attr->verify_microcode = true;
        demod->my_common_attr->intermediate_freq = 5000;
+       demod->my_common_attr->current_power_mode = DRX_POWER_DOWN;
        demod->my_ext_attr = demod_ext_attr;
        ((struct drxj_data *)demod_ext_attr)->uio_sma_tx_mode = DRX_UIO_MODE_READWRITE;
        demod->i2c = i2c;