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Thu, 20 Feb 2025 08:56:18 -0500 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Thu, 20 Feb 2025 08:56:18 -0500 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Thu, 20 Feb 2025 08:56:18 -0500 Received: from amiclaus-VirtualBox.ad.analog.com (AMICLAUS-L02.ad.analog.com [10.48.65.155]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 51KDtxqw008409; Thu, 20 Feb 2025 08:56:14 -0500 From: Antoniu Miclaus To: , , , , , CC: Antoniu Miclaus Subject: [PATCH 09/14] iio: adc: adi-axi-adc: add self sync support Date: Thu, 20 Feb 2025 15:54:19 +0200 Message-ID: <20250220135429.8615-10-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250220135429.8615-1-antoniu.miclaus@analog.com> References: <20250220135429.8615-1-antoniu.miclaus@analog.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: 6KbOo9WHT4yr2MCf-Aj00_zkquWmZgVp X-Authority-Analysis: v=2.4 cv=QdWcvtbv c=1 sm=1 tr=0 ts=67b73483 cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=T2h4t0Lz3GQA:10 a=gAnH3GRIAAAA:8 a=WgLiV2wPMLe3KAJAQCsA:9 a=oVHKYsEdi7-vN-J5QA_j:22 X-Proofpoint-ORIG-GUID: 6KbOo9WHT4yr2MCf-Aj00_zkquWmZgVp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-20_05,2025-02-20_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 suspectscore=0 bulkscore=0 clxscore=1015 spamscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 priorityscore=1501 malwarescore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502100000 definitions=main-2502200101 Add support for data capture synchronization through CNV signal or bit-slip. Signed-off-by: Antoniu Miclaus --- drivers/iio/adc/adi-axi-adc.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index c7811667f853..7f6dc0ff7c54 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -53,6 +53,7 @@ #define AXI_AD485X_PACKET_FORMAT_20BIT 0x0 #define AXI_AD485X_PACKET_FORMAT_24BIT 0x1 #define AXI_AD485X_PACKET_FORMAT_32BIT 0x2 +#define AXI_AD408X_CNTRL_3_SELF_SYNC_EN_MSK BIT(1) #define AXI_AD408X_CNTRL_3_FILTER_EN_MSK BIT(0) #define ADI_AXI_ADC_REG_DRP_STATUS 0x0074 @@ -436,6 +437,22 @@ static int axi_adc_ad408x_bitslip_disable(struct iio_backend *back) AXI_AD408X_CTRL_BITSLIP_EN_MSK); } +static int axi_adc_ad408x_self_sync_enable(struct iio_backend *back) +{ + struct adi_axi_adc_state *st = iio_backend_get_priv(back); + + return regmap_set_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3, + AXI_AD408X_CNTRL_3_SELF_SYNC_EN_MSK); +} + +static int axi_adc_ad408x_self_sync_disable(struct iio_backend *back) +{ + struct adi_axi_adc_state *st = iio_backend_get_priv(back); + + return regmap_clear_bits(st->regmap, ADI_AXI_ADC_REG_CNTRL_3, + AXI_AD408X_CNTRL_3_SELF_SYNC_EN_MSK); +} + static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back, struct iio_dev *indio_dev) { @@ -628,6 +645,8 @@ static const struct iio_backend_ops adi_ad408x_ops = { .filter_disable = axi_adc_ad408x_filter_disable, .bitslip_enable = axi_adc_ad408x_bitslip_enable, .bitslip_disable = axi_adc_ad408x_bitslip_disable, + .self_sync_enable = axi_adc_ad408x_self_sync_enable, + .self_sync_disable = axi_adc_ad408x_self_sync_disable, .debugfs_reg_access = iio_backend_debugfs_ptr(axi_adc_reg_access), .debugfs_print_chan_status = iio_backend_debugfs_ptr(axi_adc_debugfs_print_chan_status), };