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Message-Id: <ed12c60cb0052853517999841a2c581289c129df.1407977791.git.shuah.kh@samsung.com> Date: Wed, 13 Aug 2014 19:09:23 -0600 From: Shuah Khan <shuah.kh@...sung.com> To: m.chehab@...sung.com, fabf@...net.be Cc: Shuah Khan <shuah.kh@...sung.com>, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 1/2] media: tuner xc5000 - release firmwware from xc5000_release() xc5000 releases firmware right after loading it. Change it to save the firmware and release it from xc5000_release(). This helps avoid fecthing firmware when forced firmware load requests come in to change analog tv frequence and when firmware needs to be reloaded after suspend and resume. Signed-off-by: Shuah Khan <shuah.kh@...sung.com> --- drivers/media/tuners/xc5000.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/drivers/media/tuners/xc5000.c b/drivers/media/tuners/xc5000.c index 512fe50..31b1dec 100644 --- a/drivers/media/tuners/xc5000.c +++ b/drivers/media/tuners/xc5000.c @@ -70,6 +70,8 @@ struct xc5000_priv { struct dvb_frontend *fe; struct delayed_work timer_sleep; + + const struct firmware *firmware; }; /* Misc Defines */ @@ -1136,20 +1138,23 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe, int force) if (!force && xc5000_is_firmware_loaded(fe) == 0) return 0; - ret = request_firmware(&fw, desired_fw->name, - priv->i2c_props.adap->dev.parent); - if (ret) { - printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n"); - return ret; - } - - dprintk(1, "firmware read %Zu bytes.\n", fw->size); + if (!priv->firmware) { + ret = request_firmware(&fw, desired_fw->name, + priv->i2c_props.adap->dev.parent); + if (ret) { + pr_err("xc5000: Upload failed. rc %d\n", ret); + return ret; + } + dprintk(1, "firmware read %Zu bytes.\n", fw->size); - if (fw->size != desired_fw->size) { - printk(KERN_ERR "xc5000: Firmware file with incorrect size\n"); - ret = -EINVAL; - goto err; - } + if (fw->size != desired_fw->size) { + pr_err("xc5000: Firmware file with incorrect size\n"); + ret = -EINVAL; + goto err; + } + priv->firmware = fw; + } else + fw = priv->firmware; /* Try up to 5 times to load firmware */ for (i = 0; i < 5; i++) { @@ -1232,7 +1237,6 @@ err: else printk(KERN_CONT " - too many retries. Giving up\n"); - release_firmware(fw); return ret; } @@ -1316,6 +1320,8 @@ static int xc5000_release(struct dvb_frontend *fe) if (priv) { cancel_delayed_work(&priv->timer_sleep); hybrid_tuner_release_state(priv); + if (priv->firmware) + release_firmware(priv->firmware); } mutex_unlock(&xc5000_list_mutex); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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