Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752730AbaAYRPJ (ORCPT ); Sat, 25 Jan 2014 12:15:09 -0500 Received: from smtp3-g21.free.fr ([212.27.42.3]:42959 "EHLO smtp3-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752103AbaAYRPH (ORCPT ); Sat, 25 Jan 2014 12:15:07 -0500 Date: Sat, 25 Jan 2014 18:14:36 +0100 From: Jean-Francois Moine To: dri-devel@lists.freedesktop.org Cc: Dave Airlie , Rob Clark , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Russell King - ARM Linux Subject: [PATCH v4 24/24] drm/i2c: tda998x: adjust the audio clock divider for S/PDIF Message-ID: <20140125181436.5c443251@armhf> In-Reply-To: References: X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.22; arm-unknown-linux-gnueabihf) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org According to some tests on the Cubox (Marvell Armada 510 + TDA19988), the S/PDIF input asks for a greater audio clock divider. Signed-off-by: Jean-Francois Moine --- drivers/gpu/drm/i2c/tda998x_drv.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index b4827c0..e4dfcb4 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -679,10 +679,14 @@ tda998x_configure_audio(struct tda998x_priv *priv, * There is no detailed info in the datasheet, so we just * assume 100MHz requires larger divider. */ + adiv = AUDIO_DIV_SERCLK_8; if (mode->clock > 100000) - adiv = AUDIO_DIV_SERCLK_16; - else - adiv = AUDIO_DIV_SERCLK_8; + adiv++; /* AUDIO_DIV_SERCLK_8 */ + + /* S/PDIF asks for a larger divider */ + if (p->audio_format == AFMT_SPDIF) + adiv++; /* AUDIO_DIV_SERCLK_16 or _32 */ + reg_write(priv, REG_AUDIO_DIV, adiv); /* -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/