From patchwork Wed Apr 12 15:33:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209289 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 28968C77B6E for ; Wed, 12 Apr 2023 15:34:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tmsh7+0V+xJkhY3KmKagvwtJWXARXzLYHkL3x3X3T/Y=; b=OKZytIACAkStV9 Z+MM/otd32PlS7dhkOMiyR2L+7NEr9iSlX+6y/TnuhiKCzca7RZOI3uQ0y+5AwdHZAN1YXPV+4fwY xb0sGs1NZx0Q3ADiSIEwnH44jbriGqnGeQumkNzQdyM/Bz3Zw8OqjyqSee03Dq0e0qfFZ6jYB78LD JrrViAs6zuR3Vfm8n1JbkI7tj5pgBnbrV7Ecy2vkUeMBT9N0fl2XBo6ztGia2H/nBtZvmPhnqsKf6 8SJGkIzuVts8WrfTsFE+lVMxRpEc/Ax4H1gPQ7BUyzoUC4Zb+rBOymswEN0iDa7xAIKN1BYKnWT+A cZwVk56BskZLGoLW1e2w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTK-003eCv-0d; Wed, 12 Apr 2023 15:33:22 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTH-003eAT-2H; Wed, 12 Apr 2023 15:33:21 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 3D7A966031FE; Wed, 12 Apr 2023 16:33:17 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313597; bh=EHR1tsOkZg+sMKl6Vd5ksBS1wb0tpOxwzLny0ukBUrU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RiATp0qJbbv8G77QFQUTh91t/g8efaCPwVvgvleE8jMQ+mpBS/VsFu7mdWZVZyaBl 9tIfsi8DLVRE5uWVzqe9o1sTFn5dPzQCa/LqBEhY/a6bUTucSRWGJNJ46Lf38La8h8 NZXWJdqDUKry+W7vHA/ne0Mc1ak5KMBYE9qn3bm7wUWXThOwAQTqPIcHcpMeBJOBHQ dh+6hEVU0oxYii7szpaqNbj1gdAc4Pbp9ZatL24GytooWQvGZBOQxyxDyRiyI98m7R EHbNJxSti+7nfIzsyOavy8ITyelZI7PKUU17/GdtfNSNftBjPsSxVp9fIvCLl+i2jk 2ZB6RAx6U3U6Q== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno , Krzysztof Kozlowski Subject: [PATCH v2 1/7] dt-bindings: leds: leds-mt6323: Document mt6331 compatible Date: Wed, 12 Apr 2023 17:33:04 +0200 Message-Id: <20230412153310.241046-2-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083319_873947_618F0E5A X-CRM114-Status: UNSURE ( 9.39 ) X-CRM114-Notice: Please train this message. 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 Add mediatek,mt6331-led compatible for the LED controller found in the MT6331 PMIC. Signed-off-by: AngeloGioacchino Del Regno Acked-by: Krzysztof Kozlowski Reviewed-by: Alexandre Mergnat --- Documentation/devicetree/bindings/leds/leds-mt6323.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/leds/leds-mt6323.txt b/Documentation/devicetree/bindings/leds/leds-mt6323.txt index 73353692efa1..7dc63af41562 100644 --- a/Documentation/devicetree/bindings/leds/leds-mt6323.txt +++ b/Documentation/devicetree/bindings/leds/leds-mt6323.txt @@ -12,7 +12,9 @@ For MediaTek PMIC wrapper bindings see: Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml Required properties: -- compatible : Must be "mediatek,mt6323-led" +- compatible : Must be one of + - "mediatek,mt6323-led" + - "mediatek,mt6331-led" - address-cells : Must be 1 - size-cells : Must be 0 From patchwork Wed Apr 12 15:33:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209292 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 EC28DC77B6E for ; Wed, 12 Apr 2023 15:34:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DKFHXGRthCJHQ2BAeKKOpcF6ja/ffL5RMWVVFrkUuWo=; b=Bw+kjyCLGxYaHf DG1necBf9N0XA8PctFKRDClCEtzNfbhrE6nlRx5U6/VqkhGKV+4eK7sjOeYpAco7CQ+hMGiZB0S4Q NC1037HDnA20SR68c2g3Bxzmh0uKziazJd1n0JP+/FuBscEN8Ojwp+YBM2VYjZn2oFDrhFE1QGQos vtAigQ1VEC3A/AG6o9P/GkJ+XyQ0W1Gz33CcSPg7kijIRIQBzY5aFCd5wUcKQA1rXfQiPwJgqcAs7 BAZiy/LIcPG0WRNeslX87IngbCYHOKc8RfPfZGGkj+4b1V6xj3N9kbRPW3R9EEXKxOu7APG8RBJ1S HfJUxgg0OVHVJNm8lIkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTS-003eJQ-2D; Wed, 12 Apr 2023 15:33:30 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTI-003eAt-36; Wed, 12 Apr 2023 15:33:22 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 122EE6603225; Wed, 12 Apr 2023 16:33:18 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313598; bh=1+oH2VJGxX2IXpJcPBU8K/09H6Zjp51OG61aceue6n0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=It/+A/uOXs6ivhMgiksOy0vKnoqYLUSaRczY4L4AmWojKY09uzozY4sgGMDpaxcr7 dcKz8Uvs3/0o37xDyIZVcVtPab9aXuEsBJ7fan7PXmtqZZoir95JIlnan5KHgfE3d2 a7oPFD0xr0NC4jQUnCDyhJQUKm6QbqvrIWfsGPaMir6woxjqSIuOPP1SVNMUvwESIf gfR8M66dO1aIg/1bkAqCbaLqun46eFmGSkJDD4Io+Z0mVtCrfTQpI18irqU52DO8Zo vt7KFxSgZi5NgjCsiSeaoz+qtxNADbgT66maEJO6AdOPLJNhLh3MuDMZqTCzGDH2dt 7irnGfS2/1khw== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno , Krzysztof Kozlowski Subject: [PATCH v2 2/7] dt-bindings: leds: leds-mt6323: Document mt6332 compatible Date: Wed, 12 Apr 2023 17:33:05 +0200 Message-Id: <20230412153310.241046-3-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083321_126377_CE8D1A25 X-CRM114-Status: UNSURE ( 7.95 ) X-CRM114-Notice: Please train this message. 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 Add support for MT6332 LEDs/WLEDs with compatible "mediatek,mt6332-led". Signed-off-by: AngeloGioacchino Del Regno Acked-by: Krzysztof Kozlowski Reviewed-by: Alexandre Mergnat Acked-by: Pavel Machek --- Documentation/devicetree/bindings/leds/leds-mt6323.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/leds/leds-mt6323.txt b/Documentation/devicetree/bindings/leds/leds-mt6323.txt index 7dc63af41562..052dccb8f2ce 100644 --- a/Documentation/devicetree/bindings/leds/leds-mt6323.txt +++ b/Documentation/devicetree/bindings/leds/leds-mt6323.txt @@ -15,6 +15,7 @@ Required properties: - compatible : Must be one of - "mediatek,mt6323-led" - "mediatek,mt6331-led" + - "mediatek,mt6332-led" - address-cells : Must be 1 - size-cells : Must be 0 From patchwork Wed Apr 12 15:33:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209294 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 39BDEC7619A for ; Wed, 12 Apr 2023 15:34:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dCs5HncbJckkfjMNoZZ8B8ayh/uKytU5h0verihyw0M=; b=P3dGe1yogQ87Vb 5LML9a+CP8c8TN9j0XdDPLNahihSjjuwJh0hR28ZlPhqPI+SsgDKgmSivd96PXUtwqQGlZUyWOmcK 6ObzwxzCmRThlvIwo05pFcJotiYAvr7fCxlsp8R4n6T2+SKM1hYPqn7bWrK+kms6o6/9f/ZfVtoIU 9XXL66c2cnhGRcdOuZZO2nwKG4eJPctluklu7Was5RnweBPjdcNoEfhxjqf+UWrd+kGyvOi5AZX1F YqTxJuR7bGig+xSvT77fl4rTYUeptgZIlehP2wW81espkx/DFRiVofF2twcAnmDi1pmBDq3/LKEhz +rx+gNmEBXG6WOD9vgvQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTW-003eMj-1W; Wed, 12 Apr 2023 15:33:34 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTI-003eBS-36; Wed, 12 Apr 2023 15:33:23 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id F334D6603209; Wed, 12 Apr 2023 16:33:18 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313599; bh=+TlD+nMWD0aYRHHc7R8w6CAJFa85Zpyeo+cXCOqaQM4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KxZCRqyDdOQcmb3/r6aa7Ds+kgnGPwYaaI2/8kW4z9wDyqdnclFffJcJgl0McLgc0 Th9iDkmHNp37dcdZGYJBRGYlqYZ/Oiof2jI1SjHkUcZnLocEogIJ6C8MDNazXkC8tK 8sGuI93JJBmt3k7lJuMsPCaGBpJM6BzEaEJoU900YU/4SYMr+Njhm1t8FRSx06NQ6Q mP7nOZ9J0p1HlAKFZZ6ufr6Jm/pdpMMgQDvLHpdTPHp6Qp7Nq615tjudCZFZ8f34Nl ni/GRdUtuQ60yPja2Tehbjv1z6KEEJ4PQhVnu23+bEfJ4g5DtfC5MshMmGsF2sprQ6 8BpRBRlScJ/Sg== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno Subject: [PATCH v2 3/7] leds: leds-mt6323: Specify registers and specs in platform data Date: Wed, 12 Apr 2023 17:33:06 +0200 Message-Id: <20230412153310.241046-4-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083321_266708_58E1BFB1 X-CRM114-Status: GOOD ( 24.44 ) 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 In order to enhance the flexibility of this driver and let it support more than just one MediaTek LEDs IP for more than just one PMIC, add platform data structure specifying the register offsets and data that commonly varies between different IPs. This commit brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Alexandre Mergnat Acked-by: Pavel Machek --- drivers/leds/leds-mt6323.c | 145 ++++++++++++++++++++++++++++--------- 1 file changed, 112 insertions(+), 33 deletions(-) diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c index 17ee88043f52..a5b2d06e9d63 100644 --- a/drivers/leds/leds-mt6323.c +++ b/drivers/leds/leds-mt6323.c @@ -37,18 +37,16 @@ * Register for MT6323_ISINK_CON0 to setup the * duty cycle of the blink. */ -#define MT6323_ISINK_CON0(i) (MT6323_ISINK0_CON0 + 0x8 * (i)) +#define MT6323_ISINK_CON(r, i) (r + 0x8 * (i)) #define MT6323_ISINK_DIM_DUTY_MASK (0x1f << 8) #define MT6323_ISINK_DIM_DUTY(i) (((i) << 8) & \ MT6323_ISINK_DIM_DUTY_MASK) -/* Register to setup the period of the blink. */ -#define MT6323_ISINK_CON1(i) (MT6323_ISINK0_CON1 + 0x8 * (i)) +/* ISINK_CON1: Register to setup the period of the blink. */ #define MT6323_ISINK_DIM_FSEL_MASK (0xffff) #define MT6323_ISINK_DIM_FSEL(i) ((i) & MT6323_ISINK_DIM_FSEL_MASK) -/* Register to control the brightness. */ -#define MT6323_ISINK_CON2(i) (MT6323_ISINK0_CON2 + 0x8 * (i)) +/* ISINK_CON2: Register to control the brightness. */ #define MT6323_ISINK_CH_STEP_SHIFT 12 #define MT6323_ISINK_CH_STEP_MASK (0x7 << 12) #define MT6323_ISINK_CH_STEP(i) (((i) << 12) & \ @@ -63,12 +61,9 @@ #define MT6323_ISINK_CH_EN_MASK(i) BIT(i) #define MT6323_ISINK_CH_EN(i) BIT(i) -#define MT6323_MAX_PERIOD 10000 -#define MT6323_MAX_LEDS 4 -#define MT6323_MAX_BRIGHTNESS 6 -#define MT6323_UNIT_DUTY 3125 -#define MT6323_CAL_HW_DUTY(o, p) DIV_ROUND_CLOSEST((o) * 100000ul,\ - (p) * MT6323_UNIT_DUTY) +#define MAX_SUPPORTED_LEDS 8 +#define MT6323_CAL_HW_DUTY(o, p, u) DIV_ROUND_CLOSEST((o) * 100000ul,\ + (p) * (u)) struct mt6323_leds; @@ -86,12 +81,59 @@ struct mt6323_led { enum led_brightness current_brightness; }; +/** + * struct mt6323_regs - register spec for the LED device + * @top_ckpdn: Offset to ISINK_CKPDN[0..x] registers + * @num_top_ckpdn: Number of ISINK_CKPDN registers + * @top_ckcon: Offset to ISINK_CKCON[0..x] registers + * @num_top_ckcon: Number of ISINK_CKCON registers + * @isink_con: Offset to ISINKx_CON[0..x] registers + * @num_isink_con: Number of ISINKx_CON registers + * @isink_max_regs: Number of ISINK[0..x] registers + * @isink_en_ctrl: Offset to ISINK_EN_CTRL register + */ +struct mt6323_regs { + const u16 *top_ckpdn; + u8 num_top_ckpdn; + const u16 *top_ckcon; + u8 num_top_ckcon; + const u16 *isink_con; + u8 num_isink_con; + u8 isink_max_regs; + u16 isink_en_ctrl; +}; + +/** + * struct mt6323_hwspec - hardware specific parameters + * @max_period: Maximum period for all LEDs + * @max_leds: Maximum number of supported LEDs + * @max_brightness: Maximum brightness for all LEDs + * @unit_duty: Steps of duty per period + */ +struct mt6323_hwspec { + u16 max_period; + u8 max_leds; + u16 max_brightness; + u16 unit_duty; +}; + +/** + * struct mt6323_data - device specific data + * @regs: Register spec for this device + * @spec: Hardware specific parameters + */ +struct mt6323_data { + const struct mt6323_regs *regs; + const struct mt6323_hwspec *spec; +}; + /** * struct mt6323_leds - state container for holding LED controller * of the driver * @dev: the device pointer * @hw: the underlying hardware providing shared * bus for the register operations + * @pdata: device specific data * @lock: the lock among process context * @led: the array that contains the state of individual * LED device @@ -99,9 +141,10 @@ struct mt6323_led { struct mt6323_leds { struct device *dev; struct mt6397_chip *hw; + const struct mt6323_data *pdata; /* protect among process context */ struct mutex lock; - struct mt6323_led *led[MT6323_MAX_LEDS]; + struct mt6323_led *led[MAX_SUPPORTED_LEDS]; }; static int mt6323_led_hw_brightness(struct led_classdev *cdev, @@ -109,6 +152,7 @@ static int mt6323_led_hw_brightness(struct led_classdev *cdev, { struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; struct regmap *regmap = leds->hw->regmap; u32 con2_mask = 0, con2_val = 0; int ret; @@ -124,7 +168,7 @@ static int mt6323_led_hw_brightness(struct led_classdev *cdev, MT6323_ISINK_SFSTR0_TC(2) | MT6323_ISINK_SFSTR0_EN; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON2(led->id), + ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[2], led->id), con2_mask, con2_val); return ret; } @@ -133,18 +177,19 @@ static int mt6323_led_hw_off(struct led_classdev *cdev) { struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; struct regmap *regmap = leds->hw->regmap; unsigned int status; int ret; status = MT6323_ISINK_CH_EN(led->id); - ret = regmap_update_bits(regmap, MT6323_ISINK_EN_CTRL, + ret = regmap_update_bits(regmap, regs->isink_en_ctrl, MT6323_ISINK_CH_EN_MASK(led->id), ~status); if (ret < 0) return ret; usleep_range(100, 300); - ret = regmap_update_bits(regmap, MT6323_TOP_CKPDN2, + ret = regmap_update_bits(regmap, regs->top_ckpdn[2], MT6323_RG_ISINK_CK_PDN_MASK(led->id), MT6323_RG_ISINK_CK_PDN(led->id)); if (ret < 0) @@ -158,25 +203,26 @@ mt6323_get_led_hw_brightness(struct led_classdev *cdev) { struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; struct regmap *regmap = leds->hw->regmap; unsigned int status; int ret; - ret = regmap_read(regmap, MT6323_TOP_CKPDN2, &status); + ret = regmap_read(regmap, regs->top_ckpdn[2], &status); if (ret < 0) return ret; if (status & MT6323_RG_ISINK_CK_PDN_MASK(led->id)) return 0; - ret = regmap_read(regmap, MT6323_ISINK_EN_CTRL, &status); + ret = regmap_read(regmap, regs->isink_en_ctrl, &status); if (ret < 0) return ret; if (!(status & MT6323_ISINK_CH_EN(led->id))) return 0; - ret = regmap_read(regmap, MT6323_ISINK_CON2(led->id), &status); + ret = regmap_read(regmap, MT6323_ISINK_CON(regs->isink_con[2], led->id), &status); if (ret < 0) return ret; @@ -189,6 +235,7 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, { struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; struct regmap *regmap = leds->hw->regmap; unsigned int status; int ret; @@ -198,13 +245,13 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, * clock and channel and let work with continuous blink as * the default. */ - ret = regmap_update_bits(regmap, MT6323_TOP_CKCON1, + ret = regmap_update_bits(regmap, regs->top_ckcon[1], MT6323_RG_ISINK_CK_SEL_MASK(led->id), 0); if (ret < 0) return ret; status = MT6323_RG_ISINK_CK_PDN(led->id); - ret = regmap_update_bits(regmap, MT6323_TOP_CKPDN2, + ret = regmap_update_bits(regmap, regs->top_ckpdn[2], MT6323_RG_ISINK_CK_PDN_MASK(led->id), ~status); if (ret < 0) @@ -212,7 +259,7 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, usleep_range(100, 300); - ret = regmap_update_bits(regmap, MT6323_ISINK_EN_CTRL, + ret = regmap_update_bits(regmap, regs->isink_en_ctrl, MT6323_ISINK_CH_EN_MASK(led->id), MT6323_ISINK_CH_EN(led->id)); if (ret < 0) @@ -222,13 +269,13 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, if (ret < 0) return ret; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON0(led->id), + ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[0], led->id), MT6323_ISINK_DIM_DUTY_MASK, MT6323_ISINK_DIM_DUTY(31)); if (ret < 0) return ret; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON1(led->id), + ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[1], led->id), MT6323_ISINK_DIM_FSEL_MASK, MT6323_ISINK_DIM_FSEL(1000)); if (ret < 0) @@ -243,6 +290,8 @@ static int mt6323_led_set_blink(struct led_classdev *cdev, { struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; + const struct mt6323_hwspec *spec = leds->pdata->spec; struct regmap *regmap = leds->hw->regmap; unsigned long period; u8 duty_hw; @@ -265,14 +314,14 @@ static int mt6323_led_set_blink(struct led_classdev *cdev, */ period = *delay_on + *delay_off; - if (period > MT6323_MAX_PERIOD) + if (period > spec->max_period) return -EINVAL; /* * Calculate duty_hw based on the percentage of period during * which the led is ON. */ - duty_hw = MT6323_CAL_HW_DUTY(*delay_on, period); + duty_hw = MT6323_CAL_HW_DUTY(*delay_on, period, spec->unit_duty); /* hardware doesn't support zero duty cycle. */ if (!duty_hw) @@ -290,13 +339,13 @@ static int mt6323_led_set_blink(struct led_classdev *cdev, led->current_brightness = cdev->max_brightness; } - ret = regmap_update_bits(regmap, MT6323_ISINK_CON0(led->id), + ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[0], led->id), MT6323_ISINK_DIM_DUTY_MASK, MT6323_ISINK_DIM_DUTY(duty_hw - 1)); if (ret < 0) goto out; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON1(led->id), + ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[1], led->id), MT6323_ISINK_DIM_FSEL_MASK, MT6323_ISINK_DIM_FSEL(period - 1)); out: @@ -369,6 +418,8 @@ static int mt6323_led_probe(struct platform_device *pdev) struct mt6397_chip *hw = dev_get_drvdata(dev->parent); struct mt6323_leds *leds; struct mt6323_led *led; + const struct mt6323_regs *regs; + const struct mt6323_hwspec *spec; int ret; unsigned int status; u32 reg; @@ -379,6 +430,9 @@ static int mt6323_led_probe(struct platform_device *pdev) platform_set_drvdata(pdev, leds); leds->dev = dev; + leds->pdata = device_get_match_data(dev); + regs = leds->pdata->regs; + spec = leds->pdata->spec; /* * leds->hw points to the underlying bus for the register @@ -388,11 +442,11 @@ static int mt6323_led_probe(struct platform_device *pdev) mutex_init(&leds->lock); status = MT6323_RG_DRV_32K_CK_PDN; - ret = regmap_update_bits(leds->hw->regmap, MT6323_TOP_CKPDN0, + ret = regmap_update_bits(leds->hw->regmap, regs->top_ckpdn[0], MT6323_RG_DRV_32K_CK_PDN_MASK, ~status); if (ret < 0) { dev_err(leds->dev, - "Failed to update MT6323_TOP_CKPDN0 Register\n"); + "Failed to update TOP_CKPDN0 Register\n"); return ret; } @@ -405,7 +459,8 @@ static int mt6323_led_probe(struct platform_device *pdev) goto put_child_node; } - if (reg >= MT6323_MAX_LEDS || leds->led[reg]) { + if (reg >= spec->max_leds || reg >= MAX_SUPPORTED_LEDS || + leds->led[reg]) { dev_err(dev, "Invalid led reg %u\n", reg); ret = -EINVAL; goto put_child_node; @@ -419,7 +474,7 @@ static int mt6323_led_probe(struct platform_device *pdev) leds->led[reg] = led; leds->led[reg]->id = reg; - leds->led[reg]->cdev.max_brightness = MT6323_MAX_BRIGHTNESS; + leds->led[reg]->cdev.max_brightness = spec->max_brightness; leds->led[reg]->cdev.brightness_set_blocking = mt6323_led_set_brightness; leds->led[reg]->cdev.blink_set = mt6323_led_set_blink; @@ -454,13 +509,14 @@ static int mt6323_led_probe(struct platform_device *pdev) static int mt6323_led_remove(struct platform_device *pdev) { struct mt6323_leds *leds = platform_get_drvdata(pdev); + const struct mt6323_regs *regs = leds->pdata->regs; int i; /* Turn the LEDs off on driver removal. */ for (i = 0 ; leds->led[i] ; i++) mt6323_led_hw_off(&leds->led[i]->cdev); - regmap_update_bits(leds->hw->regmap, MT6323_TOP_CKPDN0, + regmap_update_bits(leds->hw->regmap, regs->top_ckpdn[0], MT6323_RG_DRV_32K_CK_PDN_MASK, MT6323_RG_DRV_32K_CK_PDN); @@ -469,8 +525,31 @@ static int mt6323_led_remove(struct platform_device *pdev) return 0; } +static const struct mt6323_regs mt6323_registers = { + .top_ckpdn = (const u16[]){ 0x102, 0x106, 0x10e }, + .num_top_ckpdn = 3, + .top_ckcon = (const u16[]){ 0x120, 0x126 }, + .num_top_ckcon = 2, + .isink_con = (const u16[]){ 0x330, 0x332, 0x334 }, + .num_isink_con = 3, + .isink_max_regs = 4, /* ISINK[0..3] */ + .isink_en_ctrl = 0x356, +}; + +static const struct mt6323_hwspec mt6323_spec = { + .max_period = 10000, + .max_leds = 4, + .max_brightness = 6, + .unit_duty = 3125, +}; + +static const struct mt6323_data mt6323_pdata = { + .regs = &mt6323_registers, + .spec = &mt6323_spec, +}; + static const struct of_device_id mt6323_led_dt_match[] = { - { .compatible = "mediatek,mt6323-led" }, + { .compatible = "mediatek,mt6323-led", .data = &mt6323_pdata}, {}, }; MODULE_DEVICE_TABLE(of, mt6323_led_dt_match); From patchwork Wed Apr 12 15:33:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209290 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 AA021C77B6E for ; Wed, 12 Apr 2023 15:34:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=J2Dufp5lZ8NvNCV4EnrQwfhRv3Eil82RWTCDCg0KFbo=; b=ykfXAgtFEP+jss RdwQZxfe1WFaPfTJ+zmntWG3Nipq9bKI3WX94pKHJiFipBbeyVMyTih9mRmhudo1a3jhB2tAolrGT T72gsqzTzvAraLYhwZX2oLJuMXEQUnYCostLR5Lckrcxt6ol8qeL85mC6RMg94+50q3+ib6FisHwr SvkQxnY4nSYbbbeFW+qv3T3jb2O2A7ruQWQuqVhhSj0MtjzSsWPjPPv0JupztFn2U4mAhO1bqrJU6 9ni41Tr3Z6eIz64l/BxDM1Qf7sWLtAMzR2ceTMVJRTh9BR2IuBfjKB0NPuT5QjGyIVz+YVYMU9SXV h52MwtvMkK8CfaHVt3eQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTV-003eLV-0R; Wed, 12 Apr 2023 15:33:33 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTJ-003eBe-1y; Wed, 12 Apr 2023 15:33:22 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id CD8056603219; Wed, 12 Apr 2023 16:33:19 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313600; bh=+DBOozEV6zvFq6sDBHu5yAuL64S2LBrToRv6x5AB1z8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GhXRdUVZPffRyg7uD1DEgcLRjFL6IxRvV3oEFJuAiz3BaEoLSFIghKCJYD0lc0XZT /ycIY0UWHL+U+OuRW1xxGjW713R7e32O/VxUPbQ64imudADIDSedOvhopFvvAH9+fI 53dSVZUcPn8WAECnzdaUzEAAYdoSkzleHEY+tWBjsTwsdQJd+J2+CScdjo2ci8JMnE MoAV1iRcq2ZgqouJHgfU9rjBojjA5bSvCYDQga0+ymZQeVulbvBHtCBxtZI5YDzCfp pdvB/ya2RqKugj5fqP6dVJ5HqZ3RC04khDqWSC/gmRWcoEZoMrEr7eJCYZ+5Sg3XM5 O9RQCGkVfjK3w== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno Subject: [PATCH v2 4/7] leds: leds-mt6323: Open code and drop MT6323_CAL_HW_DUTY macro Date: Wed, 12 Apr 2023 17:33:07 +0200 Message-Id: <20230412153310.241046-5-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083321_779938_6E4D11BC X-CRM114-Status: GOOD ( 11.02 ) 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 There is only one instance of using this macro and it's anyway not simplifying the flow, or increasing the readability of this driver. Drop this macro by open coding it in mt6323_led_set_blink(). No functional changes. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Alexandre Mergnat --- drivers/leds/leds-mt6323.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c index a5b2d06e9d63..dc604c187cb2 100644 --- a/drivers/leds/leds-mt6323.c +++ b/drivers/leds/leds-mt6323.c @@ -62,8 +62,6 @@ #define MT6323_ISINK_CH_EN(i) BIT(i) #define MAX_SUPPORTED_LEDS 8 -#define MT6323_CAL_HW_DUTY(o, p, u) DIV_ROUND_CLOSEST((o) * 100000ul,\ - (p) * (u)) struct mt6323_leds; @@ -321,7 +319,7 @@ static int mt6323_led_set_blink(struct led_classdev *cdev, * Calculate duty_hw based on the percentage of period during * which the led is ON. */ - duty_hw = MT6323_CAL_HW_DUTY(*delay_on, period, spec->unit_duty); + duty_hw = DIV_ROUND_CLOSEST(*delay_on * 100000ul, period * spec->unit_duty); /* hardware doesn't support zero duty cycle. */ if (!duty_hw) From patchwork Wed Apr 12 15:33:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209295 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 E289AC77B6E for ; Wed, 12 Apr 2023 15:34:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8d0tbGz1ZsWguxZYFFo9tpd38u2lg2SRPvmRnyfCbYM=; b=0meickzHhDy2cZ 3F4qVnaY4hsV4po9vLsm7GzhoIhjLh++wKLqFpOjz4q0twIJfu8vfAoJoEuDlF+sserxwIdebGrlZ Gbo6TO1wFCUGLOGG5qj/H8mJLTMZOjGX5R2LKk2sMbptr7O8VK8SO01ulNkh5VRU97wxbsmLtv0cq 2O86f9JxuwKISQ3/HAjHk8kjJ5WCS1O8MTFs735dl0S+a9m6slvS7Vg1935B8tkXgwAKP7qz1tH+a U6PAxzmeoO5pUjconQiCiozpIi2z56vitBiYvlJb596f3hXkB1rWNPeEcvE3JxgiJO/puaLMGyqEm ZEop4U9FmX541vBPYl8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTb-003eR2-2p; Wed, 12 Apr 2023 15:33:39 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTK-003eCM-1E; Wed, 12 Apr 2023 15:33:26 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 9A320660326D; Wed, 12 Apr 2023 16:33:20 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313601; bh=0AEtKqRmts9pzZtQsVfrH6DDcklFiXoYvDCIdbqDf2Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IWSSyg2GI9lzu1LZW9d8c+ZYq8f0oGPuklU8eHG+n2ZTNGQRA/LdzT2JG+DZqugGn oVgejv5H7mbLfAnoaxOwho4HojF3BZdSGZIY1YxymE7ymbYhTEJLu0uNevdrD6CIsy FUTjITQ/wlivn+G7Tzg0iiFup218O5Wgp2znJjPwHKM1x84w1ytqlo/mupuP+6q019 ySbKREE/9/VJ4eGbQtG4k9JSeyRbKTel7htF6vk3at4+X9CJhVJuBsGP3hG1Q3bvLl Zj4HF0FTSbjoPNUu6pHgDUkkq3nTjsINs7Lhq6822NU5CIfY0iejB5cxWpb5efjcqX gKBRZTUYYfnSg== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno Subject: [PATCH v2 5/7] leds: leds-mt6323: Drop MT6323_ prefix from macros and defines Date: Wed, 12 Apr 2023 17:33:08 +0200 Message-Id: <20230412153310.241046-6-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083322_697391_81FEB676 X-CRM114-Status: GOOD ( 16.48 ) 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 renames all definitions and macros to drop the MT6323_ prefix, since it is now possible to easily add support to more PMICs in this driver. While at it, also fix related formatting where possible. This commit brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Alexandre Mergnat --- drivers/leds/leds-mt6323.c | 125 ++++++++++++++++++------------------- 1 file changed, 61 insertions(+), 64 deletions(-) diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c index dc604c187cb2..182256ec1924 100644 --- a/drivers/leds/leds-mt6323.c +++ b/drivers/leds/leds-mt6323.c @@ -14,52 +14,49 @@ #include /* - * Register field for MT6323_TOP_CKPDN0 to enable + * Register field for TOP_CKPDN0 to enable * 32K clock common for LED device. */ -#define MT6323_RG_DRV_32K_CK_PDN BIT(11) -#define MT6323_RG_DRV_32K_CK_PDN_MASK BIT(11) +#define RG_DRV_32K_CK_PDN BIT(11) +#define RG_DRV_32K_CK_PDN_MASK BIT(11) /* - * Register field for MT6323_TOP_CKPDN2 to enable + * Register field for TOP_CKPDN2 to enable * individual clock for LED device. */ -#define MT6323_RG_ISINK_CK_PDN(i) BIT(i) -#define MT6323_RG_ISINK_CK_PDN_MASK(i) BIT(i) +#define RG_ISINK_CK_PDN(i) BIT(i) +#define RG_ISINK_CK_PDN_MASK(i) BIT(i) /* - * Register field for MT6323_TOP_CKCON1 to select + * Register field for TOP_CKCON1 to select * clock source. */ -#define MT6323_RG_ISINK_CK_SEL_MASK(i) (BIT(10) << (i)) +#define RG_ISINK_CK_SEL_MASK(i) (BIT(10) << (i)) /* - * Register for MT6323_ISINK_CON0 to setup the + * Register for ISINK_CON0 to setup the * duty cycle of the blink. */ -#define MT6323_ISINK_CON(r, i) (r + 0x8 * (i)) -#define MT6323_ISINK_DIM_DUTY_MASK (0x1f << 8) -#define MT6323_ISINK_DIM_DUTY(i) (((i) << 8) & \ - MT6323_ISINK_DIM_DUTY_MASK) +#define ISINK_CON(r, i) (r + 0x8 * (i)) +#define ISINK_DIM_DUTY_MASK (0x1f << 8) +#define ISINK_DIM_DUTY(i) (((i) << 8) & ISINK_DIM_DUTY_MASK) /* ISINK_CON1: Register to setup the period of the blink. */ -#define MT6323_ISINK_DIM_FSEL_MASK (0xffff) -#define MT6323_ISINK_DIM_FSEL(i) ((i) & MT6323_ISINK_DIM_FSEL_MASK) +#define ISINK_DIM_FSEL_MASK (0xffff) +#define ISINK_DIM_FSEL(i) ((i) & ISINK_DIM_FSEL_MASK) /* ISINK_CON2: Register to control the brightness. */ -#define MT6323_ISINK_CH_STEP_SHIFT 12 -#define MT6323_ISINK_CH_STEP_MASK (0x7 << 12) -#define MT6323_ISINK_CH_STEP(i) (((i) << 12) & \ - MT6323_ISINK_CH_STEP_MASK) -#define MT6323_ISINK_SFSTR0_TC_MASK (0x3 << 1) -#define MT6323_ISINK_SFSTR0_TC(i) (((i) << 1) & \ - MT6323_ISINK_SFSTR0_TC_MASK) -#define MT6323_ISINK_SFSTR0_EN_MASK BIT(0) -#define MT6323_ISINK_SFSTR0_EN BIT(0) +#define ISINK_CH_STEP_SHIFT 12 +#define ISINK_CH_STEP_MASK (0x7 << 12) +#define ISINK_CH_STEP(i) (((i) << 12) & ISINK_CH_STEP_MASK) +#define ISINK_SFSTR0_TC_MASK (0x3 << 1) +#define ISINK_SFSTR0_TC(i) (((i) << 1) & ISINK_SFSTR0_TC_MASK) +#define ISINK_SFSTR0_EN_MASK BIT(0) +#define ISINK_SFSTR0_EN BIT(0) /* Register to LED channel enablement. */ -#define MT6323_ISINK_CH_EN_MASK(i) BIT(i) -#define MT6323_ISINK_CH_EN(i) BIT(i) +#define ISINK_CH_EN_MASK(i) BIT(i) +#define ISINK_CH_EN(i) BIT(i) #define MAX_SUPPORTED_LEDS 8 @@ -159,14 +156,14 @@ static int mt6323_led_hw_brightness(struct led_classdev *cdev, * Setup current output for the corresponding * brightness level. */ - con2_mask |= MT6323_ISINK_CH_STEP_MASK | - MT6323_ISINK_SFSTR0_TC_MASK | - MT6323_ISINK_SFSTR0_EN_MASK; - con2_val |= MT6323_ISINK_CH_STEP(brightness - 1) | - MT6323_ISINK_SFSTR0_TC(2) | - MT6323_ISINK_SFSTR0_EN; - - ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[2], led->id), + con2_mask |= ISINK_CH_STEP_MASK | + ISINK_SFSTR0_TC_MASK | + ISINK_SFSTR0_EN_MASK; + con2_val |= ISINK_CH_STEP(brightness - 1) | + ISINK_SFSTR0_TC(2) | + ISINK_SFSTR0_EN; + + ret = regmap_update_bits(regmap, ISINK_CON(regs->isink_con[2], led->id), con2_mask, con2_val); return ret; } @@ -180,16 +177,16 @@ static int mt6323_led_hw_off(struct led_classdev *cdev) unsigned int status; int ret; - status = MT6323_ISINK_CH_EN(led->id); + status = ISINK_CH_EN(led->id); ret = regmap_update_bits(regmap, regs->isink_en_ctrl, - MT6323_ISINK_CH_EN_MASK(led->id), ~status); + ISINK_CH_EN_MASK(led->id), ~status); if (ret < 0) return ret; usleep_range(100, 300); ret = regmap_update_bits(regmap, regs->top_ckpdn[2], - MT6323_RG_ISINK_CK_PDN_MASK(led->id), - MT6323_RG_ISINK_CK_PDN(led->id)); + RG_ISINK_CK_PDN_MASK(led->id), + RG_ISINK_CK_PDN(led->id)); if (ret < 0) return ret; @@ -210,22 +207,22 @@ mt6323_get_led_hw_brightness(struct led_classdev *cdev) if (ret < 0) return ret; - if (status & MT6323_RG_ISINK_CK_PDN_MASK(led->id)) + if (status & RG_ISINK_CK_PDN_MASK(led->id)) return 0; ret = regmap_read(regmap, regs->isink_en_ctrl, &status); if (ret < 0) return ret; - if (!(status & MT6323_ISINK_CH_EN(led->id))) + if (!(status & ISINK_CH_EN(led->id))) return 0; - ret = regmap_read(regmap, MT6323_ISINK_CON(regs->isink_con[2], led->id), &status); + ret = regmap_read(regmap, ISINK_CON(regs->isink_con[2], led->id), &status); if (ret < 0) return ret; - return ((status & MT6323_ISINK_CH_STEP_MASK) - >> MT6323_ISINK_CH_STEP_SHIFT) + 1; + return ((status & ISINK_CH_STEP_MASK) + >> ISINK_CH_STEP_SHIFT) + 1; } static int mt6323_led_hw_on(struct led_classdev *cdev, @@ -244,13 +241,13 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, * the default. */ ret = regmap_update_bits(regmap, regs->top_ckcon[1], - MT6323_RG_ISINK_CK_SEL_MASK(led->id), 0); + RG_ISINK_CK_SEL_MASK(led->id), 0); if (ret < 0) return ret; - status = MT6323_RG_ISINK_CK_PDN(led->id); + status = RG_ISINK_CK_PDN(led->id); ret = regmap_update_bits(regmap, regs->top_ckpdn[2], - MT6323_RG_ISINK_CK_PDN_MASK(led->id), + RG_ISINK_CK_PDN_MASK(led->id), ~status); if (ret < 0) return ret; @@ -258,8 +255,8 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, usleep_range(100, 300); ret = regmap_update_bits(regmap, regs->isink_en_ctrl, - MT6323_ISINK_CH_EN_MASK(led->id), - MT6323_ISINK_CH_EN(led->id)); + ISINK_CH_EN_MASK(led->id), + ISINK_CH_EN(led->id)); if (ret < 0) return ret; @@ -267,15 +264,15 @@ static int mt6323_led_hw_on(struct led_classdev *cdev, if (ret < 0) return ret; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[0], led->id), - MT6323_ISINK_DIM_DUTY_MASK, - MT6323_ISINK_DIM_DUTY(31)); + ret = regmap_update_bits(regmap, ISINK_CON(regs->isink_con[0], led->id), + ISINK_DIM_DUTY_MASK, + ISINK_DIM_DUTY(31)); if (ret < 0) return ret; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[1], led->id), - MT6323_ISINK_DIM_FSEL_MASK, - MT6323_ISINK_DIM_FSEL(1000)); + ret = regmap_update_bits(regmap, ISINK_CON(regs->isink_con[1], led->id), + ISINK_DIM_FSEL_MASK, + ISINK_DIM_FSEL(1000)); if (ret < 0) return ret; @@ -337,15 +334,15 @@ static int mt6323_led_set_blink(struct led_classdev *cdev, led->current_brightness = cdev->max_brightness; } - ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[0], led->id), - MT6323_ISINK_DIM_DUTY_MASK, - MT6323_ISINK_DIM_DUTY(duty_hw - 1)); + ret = regmap_update_bits(regmap, ISINK_CON(regs->isink_con[0], led->id), + ISINK_DIM_DUTY_MASK, + ISINK_DIM_DUTY(duty_hw - 1)); if (ret < 0) goto out; - ret = regmap_update_bits(regmap, MT6323_ISINK_CON(regs->isink_con[1], led->id), - MT6323_ISINK_DIM_FSEL_MASK, - MT6323_ISINK_DIM_FSEL(period - 1)); + ret = regmap_update_bits(regmap, ISINK_CON(regs->isink_con[1], led->id), + ISINK_DIM_FSEL_MASK, + ISINK_DIM_FSEL(period - 1)); out: mutex_unlock(&leds->lock); @@ -439,9 +436,9 @@ static int mt6323_led_probe(struct platform_device *pdev) leds->hw = hw; mutex_init(&leds->lock); - status = MT6323_RG_DRV_32K_CK_PDN; + status = RG_DRV_32K_CK_PDN; ret = regmap_update_bits(leds->hw->regmap, regs->top_ckpdn[0], - MT6323_RG_DRV_32K_CK_PDN_MASK, ~status); + RG_DRV_32K_CK_PDN_MASK, ~status); if (ret < 0) { dev_err(leds->dev, "Failed to update TOP_CKPDN0 Register\n"); @@ -515,8 +512,8 @@ static int mt6323_led_remove(struct platform_device *pdev) mt6323_led_hw_off(&leds->led[i]->cdev); regmap_update_bits(leds->hw->regmap, regs->top_ckpdn[0], - MT6323_RG_DRV_32K_CK_PDN_MASK, - MT6323_RG_DRV_32K_CK_PDN); + RG_DRV_32K_CK_PDN_MASK, + RG_DRV_32K_CK_PDN); mutex_destroy(&leds->lock); From patchwork Wed Apr 12 15:33:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209293 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 BCE1EC77B72 for ; Wed, 12 Apr 2023 15:34:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BG/eiTsf3VM44ghYwx7hoRkbnlzU8O1J6XyZRcicJNg=; b=ck5dlFql8FjSLC iByIHQGvAJ6S6LY5tGncGOZdv2DcN8T9iZivNNuzxnXp+X7YvlzUuHn9lQcYuKo3yCxjp3aAfUr6t f8yZXyQ5NdOjv/RurqHxzuOOA6BEZL2jjXIqqkGnYGYlvVpgNC5zxVrRaVyvd2otMGP/tMbS4118+ ET1ifLLwSd88gCbzhDMi4u6lacUI1s59Qi7bkJxp94rahRnnQGAWgiY4HVUG1Eij0DoFsLIyKGvcN XccSHM6ytmRYUu+alaNqTmvAISXnlGxfxwnX7PKnMSE667tdR2mSan7cEkQKFtdJwVNA7iziijnkF X9IP2xIxEaZgtyKMAH6A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTZ-003eOX-2y; Wed, 12 Apr 2023 15:33:37 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTL-003eD7-0m; Wed, 12 Apr 2023 15:33:25 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 67DA66603227; Wed, 12 Apr 2023 16:33:21 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313602; bh=vi2RDu/bGYlPP6E/3zXtPAMtZWGHd8Hd3r1hdyJKQnQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NFDDLE+MHTl29/l2YZg5/bsUqieAzLVk1lBO/MVsq1QtEURZ22Xrw5PnHoDcIP01l 1CNzKzXr19cI+PDE+vBjXWe9S6xalqbsDZcM+FqgIBYkxQKpF+idwOUI2OsfE3hzER rHA6gYe7ifFftu6K1FWgd1zHBmGoZWL4FNEYNC73qo7d3tx94NOhdZzf6wPK3KTxlv vgMev/uBDNvTnfZHrpmayg0ZoCdAGkM3I0K8pOhClDxE7upIA97g1MgrRh66StGhkD b4LPWDNQw5XsftlYV09Yz+49+fNcG5eVkPwQaMWUqhB3zhmDHSNghmXaMN9ifY4BME BZli95nAZx3eQ== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno Subject: [PATCH v2 6/7] leds: leds-mt6323: Add support for MT6331 leds Date: Wed, 12 Apr 2023 17:33:09 +0200 Message-Id: <20230412153310.241046-7-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083323_440556_60AE098C X-CRM114-Status: GOOD ( 10.32 ) 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 Add the register offsets for MT6331. The hwspec is the same as MT6323. Signed-off-by: AngeloGioacchino Del Regno Acked-by: Pavel Machek Reviewed-by: Alexandre Mergnat --- drivers/leds/leds-mt6323.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c index 182256ec1924..5d95dbd9a761 100644 --- a/drivers/leds/leds-mt6323.c +++ b/drivers/leds/leds-mt6323.c @@ -531,6 +531,17 @@ static const struct mt6323_regs mt6323_registers = { .isink_en_ctrl = 0x356, }; +static const struct mt6323_regs mt6331_registers = { + .top_ckpdn = (const u16[]){ 0x138, 0x13e, 0x144 }, + .num_top_ckpdn = 3, + .top_ckcon = (const u16[]){ 0x14c, 0x14a }, + .num_top_ckcon = 2, + .isink_con = (const u16[]){ 0x40c, 0x40e, 0x410, 0x412, 0x414 }, + .num_isink_con = 5, + .isink_max_regs = 4, /* ISINK[0..3] */ + .isink_en_ctrl = 0x43a, +}; + static const struct mt6323_hwspec mt6323_spec = { .max_period = 10000, .max_leds = 4, @@ -543,8 +554,14 @@ static const struct mt6323_data mt6323_pdata = { .spec = &mt6323_spec, }; +static const struct mt6323_data mt6331_pdata = { + .regs = &mt6331_registers, + .spec = &mt6323_spec, +}; + static const struct of_device_id mt6323_led_dt_match[] = { { .compatible = "mediatek,mt6323-led", .data = &mt6323_pdata}, + { .compatible = "mediatek,mt6331-led", .data = &mt6331_pdata }, {}, }; MODULE_DEVICE_TABLE(of, mt6323_led_dt_match); From patchwork Wed Apr 12 15:33:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13209304 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 95A2EC77B6E for ; Wed, 12 Apr 2023 15:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9UtvL3zUfQAXRfnCrMwrUIddpy2vhrGikRosGUxiRp8=; b=PLjnr1fdFdkiiU lYfwWwQfIoCGg9A3ikBp91otIQNUOHA1HsJRdds1AZj3ERA7srQLxIDbcVNC88uRHvO36wfmyOaO6 V3/6TdVaR2qPOKvLHlfDoZxdeGUjtPXd+urvMujDTXgQINqtqOflYk8KDXeQPNyJuS0w1z7QkvRNZ yhPHg8Q0blWm2r/ZOuvDo1c6RdwmT0FdPayFowLyXiMHeB8/Y6A/GV/FAujWrGPhuVZZJuvJylJ2h 3jUFV4/iPgJfcUdaW4AiIC1tT29GDC8dSBkQnubG46zn88JIITflppf2Yz1xb7IIHhfquwe1qmOrY OnwGg1CsTtG8VFJC+r8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTh-003eWg-1W; Wed, 12 Apr 2023 15:33:45 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pmcTL-003eDh-3C; Wed, 12 Apr 2023 15:33:27 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 2FACA660329C; Wed, 12 Apr 2023 16:33:22 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1681313602; bh=cD7hv+m4LOlAXTSBkUahMUfTCdShYn+SrdLz55PfB20=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O0jz08gJkY7BrbexbgtcIJtUy6A/+hi9qCaThtbbbbfHFKjXnA+jzu+MuhXZbWAhX WkH68o8JM1qTn+WPZQZrLb9IVMG09pRYxHVxfFtuElhQx30V6K0bsLfBuRcF9wNOnK BDeW63iWc/Bq3X18LH4JqQW7VJ8X3wWD20YGD+vhziLvjUuLb+vG3lSfbtAno1uv1d 50z8FSrYmL5LjlSa6EMsOdZed4Kuf5YJ8I56tR0rTkduOPRLQMh58EF/HN8EWNlZrY u4wsgLFE8wIL4wsANK0zLwD+fA0dLV6O+hsPOels2nHUITDgjSRQW6GFGx1wozQsTx EsucjZQhw/+Vg== From: AngeloGioacchino Del Regno To: pavel@ucw.cz Cc: lee@kernel.org, sean.wang@mediatek.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, AngeloGioacchino Del Regno Subject: [PATCH v2 7/7] leds: leds-mt6323: Add support for WLEDs and MT6332 Date: Wed, 12 Apr 2023 17:33:10 +0200 Message-Id: <20230412153310.241046-8-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> References: <20230412153310.241046-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230412_083324_298842_436085CE X-CRM114-Status: GOOD ( 22.87 ) 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 Add basic code to turn on and off WLEDs and wire up MT6332 support to take advantage of it. This is a simple approach due to to the aforementioned PMIC supporting only on/off status so, at the time of writing, it is impossible for me to validate more advanced functionality due to lack of hardware. Signed-off-by: AngeloGioacchino Del Regno --- drivers/leds/leds-mt6323.c | 171 +++++++++++++++++++++++++++++++++++-- 1 file changed, 164 insertions(+), 7 deletions(-) diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c index 5d95dbd9a761..202b38ac32f6 100644 --- a/drivers/leds/leds-mt6323.c +++ b/drivers/leds/leds-mt6323.c @@ -20,6 +20,11 @@ #define RG_DRV_32K_CK_PDN BIT(11) #define RG_DRV_32K_CK_PDN_MASK BIT(11) +/* 32K/1M/6M clock common for WLED device */ +#define RG_VWLED_1M_CK_PDN BIT(0) +#define RG_VWLED_32K_CK_PDN BIT(12) +#define RG_VWLED_6M_CK_PDN BIT(13) + /* * Register field for TOP_CKPDN2 to enable * individual clock for LED device. @@ -73,7 +78,7 @@ struct mt6323_led { int id; struct mt6323_leds *parent; struct led_classdev cdev; - enum led_brightness current_brightness; + unsigned int current_brightness; }; /** @@ -86,6 +91,7 @@ struct mt6323_led { * @num_isink_con: Number of ISINKx_CON registers * @isink_max_regs: Number of ISINK[0..x] registers * @isink_en_ctrl: Offset to ISINK_EN_CTRL register + * @iwled_en_ctrl: Offset to IWLED_EN_CTRL register */ struct mt6323_regs { const u16 *top_ckpdn; @@ -96,18 +102,21 @@ struct mt6323_regs { u8 num_isink_con; u8 isink_max_regs; u16 isink_en_ctrl; + u16 iwled_en_ctrl; }; /** * struct mt6323_hwspec - hardware specific parameters * @max_period: Maximum period for all LEDs * @max_leds: Maximum number of supported LEDs + * @max_wleds: Maximum number of WLEDs * @max_brightness: Maximum brightness for all LEDs * @unit_duty: Steps of duty per period */ struct mt6323_hwspec { u16 max_period; u8 max_leds; + u8 max_wleds; u16 max_brightness; u16 unit_duty; }; @@ -379,6 +388,117 @@ static int mt6323_led_set_brightness(struct led_classdev *cdev, return ret; } +static int mtk_wled_hw_on(struct led_classdev *cdev) +{ + struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); + struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; + struct regmap *regmap = leds->hw->regmap; + int ret; + + ret = regmap_clear_bits(regmap, regs->top_ckpdn[0], RG_VWLED_32K_CK_PDN); + if (ret) + return ret; + + ret = regmap_clear_bits(regmap, regs->top_ckpdn[0], RG_VWLED_6M_CK_PDN); + if (ret) + return ret; + + ret = regmap_clear_bits(regmap, regs->top_ckpdn[0], RG_VWLED_1M_CK_PDN); + if (ret) + return ret; + + usleep_range(5000, 6000); + + /* Enable WLED channel pair */ + ret = regmap_set_bits(regmap, regs->iwled_en_ctrl, BIT(led->id)); + if (ret) + return ret; + + ret = regmap_set_bits(regmap, regs->iwled_en_ctrl, BIT(led->id + 1)); + if (ret) + return ret; + + return 0; +} + +static int mtk_wled_hw_off(struct led_classdev *cdev) +{ + struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); + struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; + struct regmap *regmap = leds->hw->regmap; + int ret; + + ret = regmap_clear_bits(regmap, regs->iwled_en_ctrl, BIT(led->id + 1)); + if (ret) + return ret; + + ret = regmap_clear_bits(regmap, regs->iwled_en_ctrl, BIT(led->id)); + if (ret) + return ret; + + ret = regmap_set_bits(regmap, regs->top_ckpdn[0], RG_VWLED_32K_CK_PDN); + if (ret) + return ret; + + ret = regmap_set_bits(regmap, regs->top_ckpdn[0], RG_VWLED_6M_CK_PDN); + if (ret) + return ret; + + ret = regmap_set_bits(regmap, regs->top_ckpdn[0], RG_VWLED_1M_CK_PDN); + if (ret) + return ret; + + return 0; +} + +static unsigned int mt6323_get_wled_brightness(struct led_classdev *cdev) +{ + struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); + struct mt6323_leds *leds = led->parent; + const struct mt6323_regs *regs = leds->pdata->regs; + struct regmap *regmap = leds->hw->regmap; + unsigned int status; + int ret; + + ret = regmap_read(regmap, regs->iwled_en_ctrl, &status); + if (ret) + return 0; + + /* Always two channels per WLED */ + status &= BIT(led->id) | BIT(led->id + 1); + + return status ? led->current_brightness : 0; +} + +static int mt6323_wled_set_brightness(struct led_classdev *cdev, + unsigned int brightness) +{ + struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev); + struct mt6323_leds *leds = led->parent; + int ret = 0; + + mutex_lock(&leds->lock); + + if (brightness) { + if (!led->current_brightness) + ret = mtk_wled_hw_on(cdev); + if (ret) + goto out; + } else { + ret = mtk_wled_hw_off(cdev); + if (ret) + goto out; + } + + led->current_brightness = brightness; +out: + mutex_unlock(&leds->lock); + + return ret; +} + static int mt6323_led_set_dt_default(struct led_classdev *cdev, struct device_node *np) { @@ -418,6 +538,7 @@ static int mt6323_led_probe(struct platform_device *pdev) int ret; unsigned int status; u32 reg; + u8 max_leds; leds = devm_kzalloc(dev, sizeof(*leds), GFP_KERNEL); if (!leds) @@ -428,6 +549,7 @@ static int mt6323_led_probe(struct platform_device *pdev) leds->pdata = device_get_match_data(dev); regs = leds->pdata->regs; spec = leds->pdata->spec; + max_leds = spec->max_leds + spec->max_wleds; /* * leds->hw points to the underlying bus for the register @@ -447,6 +569,7 @@ static int mt6323_led_probe(struct platform_device *pdev) for_each_available_child_of_node(np, child) { struct led_init_data init_data = {}; + bool is_wled; ret = of_property_read_u32(child, "reg", ®); if (ret) { @@ -454,7 +577,7 @@ static int mt6323_led_probe(struct platform_device *pdev) goto put_child_node; } - if (reg >= spec->max_leds || reg >= MAX_SUPPORTED_LEDS || + if (reg >= max_leds || reg >= MAX_SUPPORTED_LEDS || leds->led[reg]) { dev_err(dev, "Invalid led reg %u\n", reg); ret = -EINVAL; @@ -467,14 +590,24 @@ static int mt6323_led_probe(struct platform_device *pdev) goto put_child_node; } + is_wled = of_property_read_bool(child, "mediatek,is-wled"); + leds->led[reg] = led; leds->led[reg]->id = reg; leds->led[reg]->cdev.max_brightness = spec->max_brightness; - leds->led[reg]->cdev.brightness_set_blocking = - mt6323_led_set_brightness; - leds->led[reg]->cdev.blink_set = mt6323_led_set_blink; - leds->led[reg]->cdev.brightness_get = - mt6323_get_led_hw_brightness; + + if (is_wled) { + leds->led[reg]->cdev.brightness_set_blocking = + mt6323_wled_set_brightness; + leds->led[reg]->cdev.brightness_get = + mt6323_get_wled_brightness; + } else { + leds->led[reg]->cdev.brightness_set_blocking = + mt6323_led_set_brightness; + leds->led[reg]->cdev.blink_set = mt6323_led_set_blink; + leds->led[reg]->cdev.brightness_get = + mt6323_get_led_hw_brightness; + } leds->led[reg]->parent = leds; ret = mt6323_led_set_dt_default(&leds->led[reg]->cdev, child); @@ -542,6 +675,17 @@ static const struct mt6323_regs mt6331_registers = { .isink_en_ctrl = 0x43a, }; +static const struct mt6323_regs mt6332_registers = { + .top_ckpdn = (const u16[]){ 0x8094, 0x809a, 0x80a0 }, + .num_top_ckpdn = 3, + .top_ckcon = (const u16[]){ 0x80a6, 0x80ac }, + .num_top_ckcon = 2, + .isink_con = (const u16[]){ 0x8cd4 }, + .num_isink_con = 1, + .isink_max_regs = 12, /* IWLED[0..2, 3..9] */ + .iwled_en_ctrl = 0x8cda, +}; + static const struct mt6323_hwspec mt6323_spec = { .max_period = 10000, .max_leds = 4, @@ -549,6 +693,13 @@ static const struct mt6323_hwspec mt6323_spec = { .unit_duty = 3125, }; +static const struct mt6323_hwspec mt6332_spec = { + /* There are no LEDs in MT6332. Only WLEDs are present. */ + .max_leds = 0, + .max_wleds = 1, + .max_brightness = 1024, +}; + static const struct mt6323_data mt6323_pdata = { .regs = &mt6323_registers, .spec = &mt6323_spec, @@ -559,9 +710,15 @@ static const struct mt6323_data mt6331_pdata = { .spec = &mt6323_spec, }; +static const struct mt6323_data mt6332_pdata = { + .regs = &mt6332_registers, + .spec = &mt6332_spec, +}; + static const struct of_device_id mt6323_led_dt_match[] = { { .compatible = "mediatek,mt6323-led", .data = &mt6323_pdata}, { .compatible = "mediatek,mt6331-led", .data = &mt6331_pdata }, + { .compatible = "mediatek,mt6332-led", .data = &mt6332_pdata }, {}, }; MODULE_DEVICE_TABLE(of, mt6323_led_dt_match);