From patchwork Tue May 21 08:45:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dumitru Ceclan via B4 Relay X-Patchwork-Id: 13669045 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 D648651C5F; Tue, 21 May 2024 08:46:26 +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=1716281186; cv=none; b=iPw8Rq9qR6yKDDGx+JYqDlIuKfraf7Qi1gWUe5ueGj78/Ug1ZAnuL95IZoQdrDyUATb5iB3EShPgH4mh7S6MNff07Jtx4KjsyFUFK+v3HDKIXIEvOJ9LYPKBMIPydll+RZNljVLDaA/k45I/nwesvGnNqF0vK2xktSHC/zmmkrg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716281186; c=relaxed/simple; bh=BscWCvxLlRzWKhpkBSkVww2bcZM3ZdgJi0FGOnKCD8A=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=VJEXIUtCebD40l3vlqFOHPvIUCtw+Cr9k2q/KGVg0sYNGTuMuVVgTFP2ZqvRhOGnxyD6uMasr9wiY+0R8/wvip9FTIN35Dn2pz+yzWoY8muqcECz04GXCLPTKoNkW7PZZViKFjNUMKLdmHLUXw2JDJxrNRPwuYTOQdPdv71RV3Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Gl9UKDSu; 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="Gl9UKDSu" Received: by smtp.kernel.org (Postfix) with ESMTPS id 8AE1DC4AF0A; Tue, 21 May 2024 08:46:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716281186; bh=BscWCvxLlRzWKhpkBSkVww2bcZM3ZdgJi0FGOnKCD8A=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Gl9UKDSuUbNbk1EHE/G/re5tZyZFHHQOnU+CNKtr2OsEHeAiPcJB1vFMP11ndsCSG 10q1BeEmWfs3wtu8LuApWcyjojuNILP8kMKhGjFdDyQd2cixGgKvmCWLSoaZEpA+v5 H4JoKGzZdYTH4LP9jSiXfNQdzXU6IBWMJzD+STRa75P9MosfPJ+6ge+SiUqISPETak 9iOoZbyiyBg5lIc20/AdR/CoNUzNmLIu9W6cvbK0P5pd0KTyFvmO8bN8WvoPxRVrYO O7XA0B4CAQhJaB2hA3Svv9lEE2yjTkKZ3natqDjhPelZRfTBqkWXLnKa5wHlJuQTin ouXrMV+paMz7Q== 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 77F3DC25B7C; Tue, 21 May 2024 08:46:26 +0000 (UTC) From: Dumitru Ceclan via B4 Relay Date: Tue, 21 May 2024 11:45:39 +0300 Subject: [PATCH 1/3] iio: adc: ad7173: fix buffers enablement for ad7176-2 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240521-ad7173-fixes-v1-1-8161cc7f3ad1@analog.com> References: <20240521-ad7173-fixes-v1-0-8161cc7f3ad1@analog.com> In-Reply-To: <20240521-ad7173-fixes-v1-0-8161cc7f3ad1@analog.com> To: Lars-Peter Clausen , Jonathan Cameron Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Dumitru Ceclan , David Lechner X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1716281184; l=3513; i=dumitru.ceclan@analog.com; s=20240313; h=from:subject:message-id; bh=YO3jbx93xkkdS8bNTk3Nk05937RhLKSs/ejH6uQRBSk=; b=vn0FOzEoFZlgkHd5VvxLngn8fwDPJNwb2rRvuSlT7Kde9aJoc36/DURSYOKZqEGPqivzPXee9 UDVeDGtt+GSBlCPjvkLgEqKTuwekQkber9Y/aoBd0uXU2s/RhIu4XWV X-Developer-Key: i=dumitru.ceclan@analog.com; a=ed25519; pk=HdqMlVyrcazwoiai7oN6ghU+Bj1pusGUFRl30jhS7Bo= X-Endpoint-Received: by B4 Relay for dumitru.ceclan@analog.com/20240313 with auth_id=140 X-Original-From: Dumitru Ceclan Reply-To: dumitru.ceclan@analog.com From: Dumitru Ceclan AD7176-2 does not feature input buffers and marks corespondent register bits as read only. Enable buffers only on supported models. Fixes: 8eb903272f75 ("iio: adc: ad7173: add AD7173 driver") Reviewed-by: David Lechner Signed-off-by: Dumitru Ceclan --- drivers/iio/adc/ad7173.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c index f6d29abe1d04..850574437bda 100644 --- a/drivers/iio/adc/ad7173.c +++ b/drivers/iio/adc/ad7173.c @@ -145,6 +145,7 @@ struct ad7173_device_info { unsigned int id; char *name; bool has_temp; + bool has_input_buf; bool has_int_ref; bool has_ref2; u8 num_gpios; @@ -212,6 +213,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 4, .num_gpios = 2, .has_temp = true, + .has_input_buf = true, .has_int_ref = true, .clock = 2 * HZ_PER_MHZ, .sinc5_data_rates = ad7173_sinc5_data_rates, @@ -224,6 +226,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 8, .num_gpios = 4, .has_temp = false, + .has_input_buf = true, .has_ref2 = true, .clock = 2 * HZ_PER_MHZ, .sinc5_data_rates = ad7173_sinc5_data_rates, @@ -237,6 +240,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 8, .num_gpios = 4, .has_temp = true, + .has_input_buf = true, .has_int_ref = true, .has_ref2 = true, .clock = 2 * HZ_PER_MHZ, @@ -251,6 +255,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 4, .num_gpios = 2, .has_temp = true, + .has_input_buf = true, .has_int_ref = true, .clock = 16 * HZ_PER_MHZ, .sinc5_data_rates = ad7175_sinc5_data_rates, @@ -263,6 +268,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 8, .num_gpios = 4, .has_temp = true, + .has_input_buf = true, .has_int_ref = true, .has_ref2 = true, .clock = 16 * HZ_PER_MHZ, @@ -277,6 +283,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 4, .num_gpios = 2, .has_temp = false, + .has_input_buf = false, .has_int_ref = true, .clock = 16 * HZ_PER_MHZ, .sinc5_data_rates = ad7175_sinc5_data_rates, @@ -289,6 +296,7 @@ static const struct ad7173_device_info ad7173_device_info[] = { .num_configs = 4, .num_gpios = 2, .has_temp = true, + .has_input_buf = true, .has_int_ref = true, .clock = 16 * HZ_PER_MHZ, .odr_start_value = AD7177_ODR_START_VALUE, @@ -932,7 +940,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev) AD7173_CH_ADDRESS(chan_arr[chan_index].channel, chan_arr[chan_index].channel2); chan_st_priv->cfg.bipolar = false; - chan_st_priv->cfg.input_buf = true; + chan_st_priv->cfg.input_buf = st->info->has_input_buf; chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF; st->adc_mode |= AD7173_ADC_MODE_REF_EN; @@ -989,7 +997,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev) chan_st_priv->ain = AD7173_CH_ADDRESS(ain[0], ain[1]); chan_st_priv->chan_reg = chan_index; - chan_st_priv->cfg.input_buf = true; + chan_st_priv->cfg.input_buf = st->info->has_input_buf; chan_st_priv->cfg.odr = 0; chan_st_priv->cfg.bipolar = fwnode_property_read_bool(child, "bipolar");