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Wed, 11 Aug 2021 13:57:34 -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 15.1.2242.12; Wed, 11 Aug 2021 19:57:29 +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 15.1.2242.12 via Frontend Transport; Wed, 11 Aug 2021 19:57:29 +0100 Received: from vitaly-Inspiron-5415.ad.cirrus.com (unknown [198.90.238.180]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 681D82A9; Wed, 11 Aug 2021 18:57:29 +0000 (UTC) From: Vitaly Rodionov To: Jaroslav Kysela , Takashi Iwai CC: , , , Lucas Tanure Subject: [PATCH v4 14/27] ALSA: hda/cs8409: Avoid setting the same I2C address for every access Date: Wed, 11 Aug 2021 19:56:41 +0100 Message-ID: <20210811185654.6837-15-vitalyr@opensource.cirrus.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210811185654.6837-1-vitalyr@opensource.cirrus.com> References: <20210811185654.6837-1-vitalyr@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: wS-hITKXHF5zK8JY9WD68HixkqaozboP X-Proofpoint-ORIG-GUID: wS-hITKXHF5zK8JY9WD68HixkqaozboP X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 impostorscore=0 mlxlogscore=981 suspectscore=0 phishscore=0 adultscore=0 mlxscore=0 spamscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108110130 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 --- Changes in v2: - No changes Changes in v3: - No changes Changes in v4: - No changes 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 420f3a612fc4..e683349ebd50 100644 --- a/sound/pci/hda/patch_cs8409.c +++ b/sound/pci/hda/patch_cs8409.c @@ -155,6 +155,21 @@ 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 @@ -176,7 +191,7 @@ 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); @@ -222,7 +237,7 @@ 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