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[87.15.70.119]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43ec3174cf0sm126966995e9.0.2025.04.07.01.53.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Apr 2025 01:53:30 -0700 (PDT) From: Angelo Dureghello X-Google-Original-From: Angelo Dureghello Date: Mon, 07 Apr 2025 10:52:06 +0200 Subject: [PATCH v3 4/5] iio: dac: adi-axi-dac: add data source get Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250407-wip-bl-ad3552r-fixes-v3-4-61874065b60f@baylibre.com> References: <20250407-wip-bl-ad3552r-fixes-v3-0-61874065b60f@baylibre.com> In-Reply-To: <20250407-wip-bl-ad3552r-fixes-v3-0-61874065b60f@baylibre.com> To: =?utf-8?q?Nuno_S=C3=A1?= , Jonathan Cameron , Lars-Peter Clausen , Jonathan Corbet , Olivier Moysan , Michael Hennerich Cc: linux-iio@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Angelo Dureghello X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1784; i=adureghello@baylibre.com; h=from:subject:message-id; bh=DrKX9r5j3TjlenOHNRW1uPlJC2BhLVb8vPawrBK+mKo=; b=owGbwMvMwCXGf3bn1e/btlsznlZLYkj/PMnGKK638KhKL68Wi2vYhOdn96hf/lEkv9XvtNbUg GKxhdW7OkpZGMS4GGTFFFnqEiNMQm+HSikvYJwNM4eVCWQIAxenAExkLjfDP+0cvQ85O3L7A+d7 nxKVPSDi+nt9CH+dUWmdwJrwVwE6FxkZZmz4um3a9phZBnpPjsjm22XXMi4OdJRfEta42ti/5GY NMwA= X-Developer-Key: i=adureghello@baylibre.com; a=openpgp; fpr=703CDFAD8B573EB00850E38366D1CB9419AF3953 From: Angelo Dureghello Add data source getter. Signed-off-by: Angelo Dureghello Reviewed-by: Nuno Sá --- drivers/iio/dac/adi-axi-dac.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/iio/dac/adi-axi-dac.c b/drivers/iio/dac/adi-axi-dac.c index f86acb98b0cffb09bf4d4626f932bf1edc911e2b..8ed5ad1fa24cef649056bc5f4ca80abbf28b9323 100644 --- a/drivers/iio/dac/adi-axi-dac.c +++ b/drivers/iio/dac/adi-axi-dac.c @@ -536,6 +536,35 @@ static int axi_dac_data_source_set(struct iio_backend *back, unsigned int chan, } } +static int axi_dac_data_source_get(struct iio_backend *back, unsigned int chan, + enum iio_backend_data_source *data) +{ + struct axi_dac_state *st = iio_backend_get_priv(back); + int ret; + u32 val; + + if (chan > AXI_DAC_CHAN_CNTRL_MAX) + return -EINVAL; + + ret = regmap_read(st->regmap, AXI_DAC_CHAN_CNTRL_7_REG(chan), &val); + if (ret) + return ret; + + switch (val) { + case AXI_DAC_DATA_INTERNAL_TONE: + *data = IIO_BACKEND_INTERNAL_CONTINUOUS_WAVE; + return 0; + case AXI_DAC_DATA_DMA: + *data = IIO_BACKEND_EXTERNAL; + return 0; + case AXI_DAC_DATA_INTERNAL_RAMP_16BIT: + *data = IIO_BACKEND_INTERNAL_RAMP_16BIT; + return 0; + default: + return -EIO; + } +} + static int axi_dac_set_sample_rate(struct iio_backend *back, unsigned int chan, u64 sample_rate) { @@ -818,6 +847,7 @@ static const struct iio_backend_ops axi_ad3552r_ops = { .request_buffer = axi_dac_request_buffer, .free_buffer = axi_dac_free_buffer, .data_source_set = axi_dac_data_source_set, + .data_source_get = axi_dac_data_source_get, .ddr_enable = axi_dac_ddr_enable, .ddr_disable = axi_dac_ddr_disable, .data_stream_enable = axi_dac_data_stream_enable,