From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ABB52CCFA05 for ; Mon, 3 Nov 2025 10:52:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:To:From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=P2iXB5W67n7YO4OssVtAEv8fDCZhOHZ+N8v9CZniUss=; b=hUAm7hkPH4TBfrxvH09xVTJDDe iSujlfJzkdHrDg7o1mhtGCZqh7fqEgt1cJZ1Ppl6etCTXJNBroyTSCZG69980NhsKnrhAVoGJm5MC r+6ZgJ9q0lu0Y3I3qTBmx/hYnvHycumF6LeO2to9eEOTdNXUyT2Dpv/6/6z0xRGWQzuGmeRuWIF8p 331XqfjVp2N38kozsk1T6RhT/AG/bUuEKkJsa4bhO2GQXfOghseYLsD1sp+iHT4nJ54UmsMDComsB okwsW2t2G+KG/EnRpgSnS4NV1VcbqtBOZj3N9bHljnHLalZzecEdzEb2bOceEtns1vJ7h2ZOFLN2r K8QvNs0Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFsAm-00000009ftB-2MGz; Mon, 03 Nov 2025 10:52:28 +0000 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFsAj-00000009fre-3n30 for linux-arm-kernel@lists.infradead.org; Mon, 03 Nov 2025 10:52:26 +0000 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Mon, 3 Nov 2025 18:52:17 +0800 Received: from twmbx02.aspeed.com (192.168.10.13) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Mon, 3 Nov 2025 18:52:17 +0800 From: Billy Tsai To: , , , , , , , , , , , , , , Subject: [PATCH v1 2/2] iio: adc: aspeed: Add AST2700 ADC support Date: Mon, 3 Nov 2025 18:52:17 +0800 Message-ID: <20251103105217.1764355-2-billy_tsai@aspeedtech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251103105217.1764355-1-billy_tsai@aspeedtech.com> References: <20251103105217.1764355-1-billy_tsai@aspeedtech.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251103_025225_941599_B40CD1DF X-CRM114-Status: GOOD ( 10.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch adds support for the ADCs found on the Aspeed AST2700 SoC, which includes two instances: "ast2700-adc0" and "ast2700-adc1". While they are functionally similar to those on AST2600, the OTP trimming data is located at the same offset (0x820), but uses different bitfields. Signed-off-by: Billy Tsai --- drivers/iio/adc/aspeed_adc.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index 8ab29948214a..9df6e7f68f19 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -646,6 +646,16 @@ static const struct aspeed_adc_trim_locate ast2600_adc1_trim = { .field = GENMASK(7, 4), }; +static const struct aspeed_adc_trim_locate ast2700_adc0_trim = { + .offset = 0x820, + .field = GENMASK(3, 0), +}; + +static const struct aspeed_adc_trim_locate ast2700_adc1_trim = { + .offset = 0x820, + .field = GENMASK(7, 4), +}; + static const struct aspeed_adc_model_data ast2400_model_data = { .model_name = "ast2400-adc", .vref_fixed_mv = 2500, @@ -690,11 +700,35 @@ static const struct aspeed_adc_model_data ast2600_adc1_model_data = { .trim_locate = &ast2600_adc1_trim, }; +static const struct aspeed_adc_model_data ast2700_adc0_model_data = { + .model_name = "ast2700-adc0", + .min_sampling_rate = 10000, + .max_sampling_rate = 500000, + .wait_init_sequence = true, + .bat_sense_sup = true, + .scaler_bit_width = 16, + .num_channels = 8, + .trim_locate = &ast2700_adc0_trim, +}; + +static const struct aspeed_adc_model_data ast2700_adc1_model_data = { + .model_name = "ast2700-adc1", + .min_sampling_rate = 10000, + .max_sampling_rate = 500000, + .wait_init_sequence = true, + .bat_sense_sup = true, + .scaler_bit_width = 16, + .num_channels = 8, + .trim_locate = &ast2700_adc1_trim, +}; + static const struct of_device_id aspeed_adc_matches[] = { { .compatible = "aspeed,ast2400-adc", .data = &ast2400_model_data }, { .compatible = "aspeed,ast2500-adc", .data = &ast2500_model_data }, { .compatible = "aspeed,ast2600-adc0", .data = &ast2600_adc0_model_data }, { .compatible = "aspeed,ast2600-adc1", .data = &ast2600_adc1_model_data }, + { .compatible = "aspeed,ast2700-adc0", .data = &ast2700_adc0_model_data }, + { .compatible = "aspeed,ast2700-adc1", .data = &ast2700_adc1_model_data }, { } }; MODULE_DEVICE_TABLE(of, aspeed_adc_matches); -- 2.25.1