From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7BF6C35AC3B; Sun, 17 May 2026 09:14:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779009281; cv=none; b=ByS7Zr+ehSAVBYrTuaAzDeI+FdpLW4RVQ5/m+niMXU2+ERT7iQfKF+e6OP30odxEg11OlcezMA3k6OWWHZb0Yn9uVWHJS5QtXDDRXBLKAhDKyiRg4Ugo6DMtMEQ+wcw4r3DGaq6Y0O371Wbzsz1+GgdgIl0AlnMJwCuOQBzBtqI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779009281; c=relaxed/simple; bh=zyw77TbZPdSWi4sAXDkD3ABEXZ455xVUvwPstZEPkNA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YF57+wcfYdqQDby9DQRXdpqY0MBz3nlI3iZlu8KjYAHyydxGzBxntOz3zMk0bNvCJDsPLqZG2VsWPdETOMrJWrtM2/YybreWYtLf70Zq6oqu3YvsKk1tpIB4qplW+mZG+5KdYQ4Srg6kkxj6vFsMQjD644Di0lL1VUJhJQkNHjE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=I+alxJPb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="I+alxJPb" Received: by smtp.kernel.org (Postfix) with ESMTPS id 5376EC2BCC9; Sun, 17 May 2026 09:14:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779009281; bh=zyw77TbZPdSWi4sAXDkD3ABEXZ455xVUvwPstZEPkNA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=I+alxJPblgTiLaSACopufFhyZc5qr1z0/Fc1ka/Did6FTNFaKdfAJLIW70KAbVazp nWSi5BxxGLP+hY6QxER8+hIZSCTXXllwMTIlRx7LM8eV2489Mb6EXbLKyp1BvesX17 jW9W/mVyiSyuPQgqYgn1VcQn9/oHll4j5CmmwpMsXzUVFVU98HvI4Rv8kyPSOBiHxR J/cRXQnLJrd/sXs6Eq524JamtFowERquVZOEEWPnN/JbF//IkdhsPrmYcbImwVEKkA s2o1TJpbIWrsV153L6p/hiw6vyUQwLEl0sof9kxORvD5utcFlUrA0kSZnW/w/IwLyb Xi4noT/nJS13g== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 478C5CD37AC; Sun, 17 May 2026 09:14:41 +0000 (UTC) From: Rodrigo Alencar via B4 Relay Date: Sun, 17 May 2026 10:14:04 +0100 Subject: [PATCH v13 09/12] iio: frequency: adf41513: handle LE synchronization feature 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: 7bit Message-Id: <20260517-adf41513-iio-driver-v13-9-bb6e134a360f@analog.com> References: <20260517-adf41513-iio-driver-v13-0-bb6e134a360f@analog.com> In-Reply-To: <20260517-adf41513-iio-driver-v13-0-bb6e134a360f@analog.com> To: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org Cc: Jonathan Cameron , David Lechner , Andy Shevchenko , Lars-Peter Clausen , Michael Hennerich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Andrew Morton , Petr Mladek , Steven Rostedt , Andy Shevchenko , Rasmus Villemoes , Sergey Senozhatsky , Shuah Khan , Rodrigo Alencar X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1779009279; l=2690; i=rodrigo.alencar@analog.com; s=default; h=from:subject:message-id; bh=tOv38rA11NbIZx5lp52HI0oGhixhW/eDvxs2dHQxbGw=; b=rLsvbPXnMKT65kAxUDLJtOteX9/PXzD3b5s58/Vu69qUtTBXEqzsUItQZhzS0A9nXI/G+mhgW af3v14kyrn1Bq7OxuNdKwJdh0GvLu85yl0+1YPLumr2o+wm5nY1/6lw X-Developer-Key: i=rodrigo.alencar@analog.com; a=ed25519; pk=ULeHbgU/OYh/PG/4anHDfLgldFItQHAhOktYRVLMFRo= X-Endpoint-Received: by B4 Relay for rodrigo.alencar@analog.com/default with auth_id=561 X-Original-From: Rodrigo Alencar Reply-To: rodrigo.alencar@analog.com From: Rodrigo Alencar When LE sync is enabled, it must be set after powering up and it must be disabled when powering down. It is recommended when using the PLL as a frequency synthesizer, where reference signal will always be present while the device is being configured. Signed-off-by: Rodrigo Alencar --- drivers/iio/frequency/adf41513.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) diff --git a/drivers/iio/frequency/adf41513.c b/drivers/iio/frequency/adf41513.c index 20ea7e82818f..be29a0f6ede9 100644 --- a/drivers/iio/frequency/adf41513.c +++ b/drivers/iio/frequency/adf41513.c @@ -218,6 +218,7 @@ struct adf41513_data { bool phase_detector_polarity; bool logic_lvl_1v8_en; + bool le_sync_en; }; struct adf41513_pll_settings { @@ -635,13 +636,28 @@ static int adf41513_set_frequency(struct adf41513_state *st, u64 freq_uhz, u16 s static int adf41513_suspend(struct adf41513_state *st) { st->regs[ADF41513_REG6] |= FIELD_PREP(ADF41513_REG6_POWER_DOWN_MSK, 1); + st->regs[ADF41513_REG12] &= ~ADF41513_REG12_LE_SELECT_MSK; return adf41513_sync_config(st, ADF41513_SYNC_DIFF); } static int adf41513_resume(struct adf41513_state *st) { + int ret; + st->regs[ADF41513_REG6] &= ~ADF41513_REG6_POWER_DOWN_MSK; - return adf41513_sync_config(st, ADF41513_SYNC_ALL); + st->regs[ADF41513_REG12] &= ~ADF41513_REG12_LE_SELECT_MSK; + ret = adf41513_sync_config(st, ADF41513_SYNC_ALL); + if (ret) + return ret; + + if (st->data.le_sync_en) { + st->regs[ADF41513_REG12] |= ADF41513_REG12_LE_SELECT_MSK; + ret = adf41513_sync_config(st, ADF41513_SYNC_DIFF); + if (ret) + return ret; + } + + return 0; } static ssize_t adf41513_read_resolution(struct iio_dev *indio_dev, @@ -911,6 +927,8 @@ static int adf41513_parse_fw(struct adf41513_state *st) "invalid lock detect count: %u\n", tmp); st->data.lock_detect_count = tmp; + /* load enable sync */ + st->data.le_sync_en = device_property_read_bool(dev, "adi,le-sync-enable"); st->data.freq_resolution_uhz = MICROHZ_PER_HZ; return 0; @@ -967,7 +985,18 @@ static int adf41513_setup(struct device *dev, struct adf41513_state *st) if (ret) return ret; - return devm_add_action_or_reset(dev, adf41513_close, st); + ret = devm_add_action_or_reset(dev, adf41513_close, st); + if (ret) + return ret; + + if (st->data.le_sync_en) { + st->regs[ADF41513_REG12] |= ADF41513_REG12_LE_SELECT_MSK; + ret = adf41513_sync_config(st, ADF41513_SYNC_DIFF); + if (ret) + return ret; + } + + return 0; } static int adf41513_pm_suspend(struct device *dev) -- 2.43.0