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Fri, 16 May 2025 04:26:47 -0400 From: Antoniu Miclaus To: , , , , , CC: Antoniu Miclaus , =?UTF-8?q?Nuno=20S=C3=A1?= Subject: [PATCH v6 06/10] iio: adc: adi-axi-adc: add data align process Date: Fri, 16 May 2025 11:26:26 +0300 Message-ID: <20250516082630.8236-7-antoniu.miclaus@analog.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250516082630.8236-1-antoniu.miclaus@analog.com> References: <20250516082630.8236-1-antoniu.miclaus@analog.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: WhYAjsJHnEcmtUeEHxOTSTPlFKl0I72b X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTE2MDA3OSBTYWx0ZWRfX76NLYOhj+brk dDmRfwTJ1eiOGyztEynR/h2QZNBB8PBC7xlGNnnfkeJ0l5Pp+SVOWGtAj6p+4BfMVY5vpGOvgLd mQADNCqHkIvV068I1tfjOWNBa0tI5YLT/N6EthEN6JaLh5W2ed4sf/8GFWWbZbwR5fUTIvrxyc3 FBtw6Q2UuiwgTY5yYo6Wxdee2IxoKz+0Qoq/RafBySNRow/HJq9VucyPcqpQEUpV9R2sOHum8z0 WFrdHX8sYV2yC+PrsGv7ZSvgnFJHqVwtH6ZUlHkFCRX1jaVh5pWYLGNaDc8UdeCaRgazvobcEKl 2axL9XSA0tarCj69xX0HX2oAiZcx1laXs/OUko1lhXggcNkqZX/8xnaHd9cbmPglwXz0uM6IPGv eNLq1HrFzUfI4IDZcHBpibBLvzE4F4JdSc3qeK2h+iI08akTJ5/F6zEApcG43rnGgAyRX0fA X-Authority-Analysis: v=2.4 cv=SZL3duRu c=1 sm=1 tr=0 ts=6826f6cf cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=gAnH3GRIAAAA:8 a=wxM4B6g2en942FlrxLsA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: WhYAjsJHnEcmtUeEHxOTSTPlFKl0I72b X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-16_03,2025-05-15_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 mlxlogscore=999 adultscore=0 priorityscore=1501 mlxscore=0 suspectscore=0 malwarescore=0 spamscore=0 clxscore=1015 phishscore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505160079 Add support for starting the sync process used for data capture alignment. Reviewed-by: Nuno Sá Signed-off-by: Antoniu Miclaus --- no changes in v6. drivers/iio/adc/adi-axi-adc.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index 2a3a6c3f5e59..f9c4018e3b41 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -44,6 +44,7 @@ #define ADI_AXI_ADC_REG_CONFIG_CMOS_OR_LVDS_N BIT(7) #define ADI_AXI_ADC_REG_CTRL 0x0044 +#define ADI_AXI_ADC_CTRL_SYNC_MSK BIT(3) #define ADI_AXI_ADC_CTRL_DDR_EDGESEL_MASK BIT(1) #define ADI_AXI_ADC_REG_CNTRL_3 0x004c @@ -54,6 +55,9 @@ #define AXI_AD485X_PACKET_FORMAT_32BIT 0x2 #define AXI_AD408X_CNTRL_3_FILTER_EN_MSK BIT(0) +#define ADI_AXI_ADC_REG_SYNC_STATUS 0x0068 +#define ADI_AXI_ADC_SYNC_STATUS_ADC_SYNC_MSK BIT(0) + #define ADI_AXI_ADC_REG_DRP_STATUS 0x0074 #define ADI_AXI_ADC_DRP_LOCKED BIT(17) @@ -416,6 +420,25 @@ static int axi_adc_ad408x_filter_type_set(struct iio_backend *back, AXI_AD408X_CNTRL_3_FILTER_EN_MSK); } +static int axi_adc_ad408x_interface_data_align(struct iio_backend *back, + u32 timeout_us) +{ + struct adi_axi_adc_state *st = iio_backend_get_priv(back); + bool sync_en; + u32 val; + int ret; + + ret = regmap_set_bits(st->regmap, ADI_AXI_ADC_REG_CTRL, + ADI_AXI_ADC_CTRL_SYNC_MSK); + if (ret) + return ret; + + return regmap_read_poll_timeout(st->regmap, ADI_AXI_ADC_REG_SYNC_STATUS, + val, + FIELD_GET(ADI_AXI_ADC_SYNC_STATUS_ADC_SYNC_MSK, val), + 1, timeout_us); +} + static struct iio_buffer *axi_adc_request_buffer(struct iio_backend *back, struct iio_dev *indio_dev) { @@ -605,6 +628,7 @@ static const struct iio_backend_ops adi_ad408x_ops = { .free_buffer = axi_adc_free_buffer, .data_sample_trigger = axi_adc_data_sample_trigger, .filter_type_set = axi_adc_ad408x_filter_type_set, + .interface_data_align = axi_adc_ad408x_interface_data_align, .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), }; -- 2.49.0