From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754978AbaLHPd3 (ORCPT ); Mon, 8 Dec 2014 10:33:29 -0500 Received: from mail.lysator.liu.se ([130.236.254.3]:41673 "EHLO mail.lysator.liu.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751216AbaLHPd2 (ORCPT ); Mon, 8 Dec 2014 10:33:28 -0500 From: Peter Rosin To: alsa-devel@alsa-project.org Cc: Liam Girdwood , Mark Brown , linux-kernel@vger.kernel.org, Peter Rosin Subject: [PATCH] ASoC: pcm512x: Trigger auto-increment of register addresses on i2c Date: Mon, 8 Dec 2014 16:33:11 +0100 Message-Id: <1418052791-4257-1-git-send-email-peda@lysator.liu.se> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Rosin When the codec is connected using i2c, it will only auto-increment register addresses if msb (0x80) of the register address byte is set. Signed-off-by: Peter Rosin --- sound/soc/codecs/pcm512x-i2c.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/pcm512x-i2c.c b/sound/soc/codecs/pcm512x-i2c.c index 4d62230bd378..d0547fa275fc 100644 --- a/sound/soc/codecs/pcm512x-i2c.c +++ b/sound/soc/codecs/pcm512x-i2c.c @@ -24,8 +24,13 @@ static int pcm512x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct regmap *regmap; + struct regmap_config config = pcm512x_regmap; - regmap = devm_regmap_init_i2c(i2c, &pcm512x_regmap); + /* msb needs to be set to enable auto-increment of addresses */ + config.read_flag_mask = 0x80; + config.write_flag_mask = 0x80; + + regmap = devm_regmap_init_i2c(i2c, &config); if (IS_ERR(regmap)) return PTR_ERR(regmap); -- 1.7.10.4