linux-kernel - [PATCH RFC] media: si2157: optionally load firmare for SI2146

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Message-Id: <cd3a382dc39e72229a73149cb91e80cf69e2b07d.1638958947.git.mchehab+huawei@kernel.org>
Date:   Wed,  8 Dec 2021 11:25:30 +0100
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Antti Palosaari <crope@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Robert Schlabbach <robert_s@....net>,
        Olli Salonen <olli.salonen@....fi>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH RFC] media: si2157: optionally load firmare for SI2146_A10 and

Cc: Antti Palosaari <crope@....fi>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Robert Schlabbach <robert_s@....net>
Cc: Olli Salonen <olli.salonen@....fi>
Cc: linux-kernel@...r.kernel.org
Cc: linux-media@...r.kernel.org

While the eeprom firmware files for such devices are know to work,
if there is a firmware file, use it instead, as a newer version
could have solved some tuning issues.

Compile-tested only.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---

At least on my eyes, it makes sense to also allow to optionally load A10
and A30 firmware files for SI2146_A10 and SI147_A30.

Yet, before applying this one, someone needs to report that those devices
will keep working with the loaded firmware files.

 drivers/media/tuners/si2157.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index 5f4ae8593864..f970bedfb179 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -205,19 +205,19 @@ static int si2157_init(struct dvb_frontend *fe)
 	case SI2148_A20:
 		fw_name = SI2158_A20_FIRMWARE;
 		break;
+	case SI2146_A10:
+		fw_required = false;
+		fallthrough;
 	case SI2141_A10:
 		fw_name = SI2141_A10_FIRMWARE;
 		break;
+	case SI2147_A30:
 	case SI2157_A30:
 		fw_required = false;
 		fallthrough;
 	case SI2177_A30:
 		fw_name = SI2157_A30_FIRMWARE;
 		break;
-	case SI2147_A30:
-	case SI2146_A10:
-		fw_name = NULL;
-		break;
 	default:
 		dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n",
 				cmd.args[2], cmd.args[1],
-- 
2.33.1