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Mon, 26 Jul 2021 13:03:10 -0500 Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Mon, 26 Jul 2021 18:47:07 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.2242.4 via Frontend Transport; Mon, 26 Jul 2021 18:47:07 +0100 Received: from vitaly-Inspiron-5415.ad.cirrus.com (unknown [198.90.238.32]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id A401C2BA; Mon, 26 Jul 2021 17:47:07 +0000 (UTC) From: Vitaly Rodionov To: Jaroslav Kysela , Takashi Iwai CC: , , , Lucas Tanure Subject: [PATCH 14/27] ALSA: hda/cs8409: Avoid setting the same I2C address for every access Date: Mon, 26 Jul 2021 18:46:27 +0100 Message-ID: <20210726174640.6390-15-vitalyr@opensource.cirrus.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210726174640.6390-1-vitalyr@opensource.cirrus.com> References: <20210726174640.6390-1-vitalyr@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: keJGBBqOOWKzrkn2D2qf6z9XajuVgR-f X-Proofpoint-ORIG-GUID: keJGBBqOOWKzrkn2D2qf6z9XajuVgR-f X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 adultscore=0 impostorscore=0 mlxlogscore=994 spamscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107260105 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lucas Tanure Signed-off-by: Lucas Tanure Signed-off-by: Vitaly Rodionov --- sound/pci/hda/patch_cs8409.c | 19 +++++++++++++++++-- sound/pci/hda/patch_cs8409.h | 1 + 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c index 335bcdc69106..474b6750e9b4 100644 --- a/sound/pci/hda/patch_cs8409.c +++ b/sound/pci/hda/patch_cs8409.c @@ -128,6 +128,21 @@ static int cs8409_i2c_wait_complete(struct hda_codec *codec) return -1; } +/** + * cs8409_set_i2c_dev_addr - Set i2c address for transaction + * @codec: the codec instance + * @addr: I2C Address + */ +static void cs8409_set_i2c_dev_addr(struct hda_codec *codec, unsigned int addr) +{ + struct cs8409_spec *spec = codec->spec; + + if (spec->dev_addr != addr) { + cs8409_vendor_coef_set(codec, CS8409_I2C_ADDR, addr); + spec->dev_addr = addr; + } +} + /** * cs8409_i2c_read - CS8409 I2C Read. * @codec: the codec instance @@ -149,7 +164,7 @@ static int cs8409_i2c_read(struct hda_codec *codec, unsigned int i2c_address, un return -EPERM; cs8409_enable_i2c_clock(codec); - cs8409_vendor_coef_set(codec, CS8409_I2C_ADDR, i2c_address); + cs8409_set_i2c_dev_addr(codec, i2c_address); if (paged) { cs8409_vendor_coef_set(codec, CS8409_I2C_QWRITE, i2c_reg >> 8); @@ -195,7 +210,7 @@ static int cs8409_i2c_write(struct hda_codec *codec, unsigned int i2c_address, u return -EPERM; cs8409_enable_i2c_clock(codec); - cs8409_vendor_coef_set(codec, CS8409_I2C_ADDR, i2c_address); + cs8409_set_i2c_dev_addr(codec, i2c_address); if (paged) { cs8409_vendor_coef_set(codec, CS8409_I2C_QWRITE, i2c_reg >> 8); diff --git a/sound/pci/hda/patch_cs8409.h b/sound/pci/hda/patch_cs8409.h index 542582c213d2..c2c208218e34 100644 --- a/sound/pci/hda/patch_cs8409.h +++ b/sound/pci/hda/patch_cs8409.h @@ -281,6 +281,7 @@ struct cs8409_spec { struct mutex cs8409_i2c_mux; unsigned int i2c_clck_enabled; + unsigned int dev_addr; struct delayed_work i2c_clk_work; /* verb exec op override */ -- 2.25.1