linux-kernel - [PATCH] media: saa7134: fix terminology around saa7134_i2c_eeprom_md7134

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Message-Id: <20190820220555.883092-2-mail@maciej.szmigiero.name>
Date:   Wed, 21 Aug 2019 00:05:55 +0200
From:   "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Matthias Schwarzott <zzam@...too.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-media@...r.kernel.org
Subject: [PATCH] media: saa7134: fix terminology around saa7134_i2c_eeprom_md7134_gate()

saa7134_i2c_eeprom_md7134_gate() function and the associated comment uses
an inverted i2c gate open / closed terminology.
Let's fix this.

Signed-off-by: Maciej S. Szmigiero <mail@...iej.szmigiero.name>
---
 drivers/media/pci/saa7134/saa7134-i2c.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/media/pci/saa7134/saa7134-i2c.c b/drivers/media/pci/saa7134/saa7134-i2c.c
index 493b1858815f..1414d580c98f 100644
--- a/drivers/media/pci/saa7134/saa7134-i2c.c
+++ b/drivers/media/pci/saa7134/saa7134-i2c.c
@@ -342,7 +342,11 @@ static const struct i2c_client saa7134_client_template = {
 
 /* ----------------------------------------------------------- */
 
-/* On Medion 7134 reading EEPROM needs DVB-T demod i2c gate open */
+/*
+ * On Medion 7134 reading the SAA7134 chip config EEPROM needs DVB-T
+ * demod i2c gate closed due to an address clash between this EEPROM
+ * and the demod one.
+ */
 static void saa7134_i2c_eeprom_md7134_gate(struct saa7134_dev *dev)
 {
 	u8 subaddr = 0x7, dmdregval;
@@ -359,13 +363,13 @@ static void saa7134_i2c_eeprom_md7134_gate(struct saa7134_dev *dev)
 
 	ret = i2c_transfer(&dev->i2c_adap, i2cgatemsg_r, 2);
 	if ((ret == 2) && (dmdregval & 0x2)) {
-		pr_debug("%s: DVB-T demod i2c gate was left closed\n",
+		pr_debug("%s: DVB-T demod i2c gate was left open\n",
 			 dev->name);
 
 		data[0] = subaddr;
 		data[1] = (dmdregval & ~0x2);
 		if (i2c_transfer(&dev->i2c_adap, i2cgatemsg_w, 1) != 1)
-			pr_err("%s: EEPROM i2c gate open failure\n",
+			pr_err("%s: EEPROM i2c gate close failure\n",
 			  dev->name);
 	}
 }