linux-kernel - [PATCH 4.14 082/126] media: helene: fix xtal frequency setting at power on

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Message-Id: <20180917211709.498618626@linuxfoundation.org>
Date:   Tue, 18 Sep 2018 00:42:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>,
        Abylay Ospan <aospan@...up.ru>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 082/126] media: helene: fix xtal frequency setting at power on

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>

[ Upstream commit a00e5f074b3f3cd39d1ccdc53d4d805b014df3f3 ]

This patch fixes crystal frequency setting when power on this device.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
Acked-by: Abylay Ospan <aospan@...up.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/media/dvb-frontends/helene.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/media/dvb-frontends/helene.c
+++ b/drivers/media/dvb-frontends/helene.c
@@ -897,7 +897,10 @@ static int helene_x_pon(struct helene_pr
 	helene_write_regs(priv, 0x99, cdata, sizeof(cdata));
 
 	/* 0x81 - 0x94 */
-	data[0] = 0x18; /* xtal 24 MHz */
+	if (priv->xtal == SONY_HELENE_XTAL_16000)
+		data[0] = 0x10; /* xtal 16 MHz */
+	else
+		data[0] = 0x18; /* xtal 24 MHz */
 	data[1] = (uint8_t)(0x80 | (0x04 & 0x1F)); /* 4 x 25 = 100uA */
 	data[2] = (uint8_t)(0x80 | (0x26 & 0x7F)); /* 38 x 0.25 = 9.5pF */
 	data[3] = 0x80; /* REFOUT signal output 500mVpp */