From patchwork Thu Apr 20 12:36:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13218726 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 D9C70C77B7C for ; Thu, 20 Apr 2023 12:37:28 +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:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uYWpq4+Y8SN5dnqN40BA5y5aW9fATZqYNnNEaevEVmc=; b=T+SXtq6sCDTpBG 3lpcD7QdXxyzdGFTzSqYDTefsT5h4Ytb+z54lkMhOzUSwwezjkH7WgkXfsMMGNbhkfCUOgtowB31D tYHZdBcXFjttcpKSyhRPwpFnxCBECVGfsX1aRKbo7pfxfFgJjAwzWAzB1OKFvEvoyrt0hwIGaw9dx gISwH2mWtIiefbIB/767C8e6okFyhOcI+8SgqcuITTvLNdzdjywjM0yQken78udleKavgfsr1mBkG ZMdxkxbsh4th9suKcN+qY9bHND95DPs8CnAaFNHWQkn/PyBNq+BQT7Vk3bcRN1Zk+5pfyh+UMvFwk rV2KMQnS3tp7adOctquQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ppTWc-0085Wg-1L; Thu, 20 Apr 2023 12:36:34 +0000 Received: from fudo.makrotopia.org ([2a07:2ec0:3002::71]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ppTWY-0085Us-35; Thu, 20 Apr 2023 12:36:32 +0000 Received: from local by fudo.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1ppTWX-0005XF-2E; Thu, 20 Apr 2023 14:36:29 +0200 Date: Thu, 20 Apr 2023 13:36:23 +0100 From: Daniel Golle To: linux-pwm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Thierry Reding , Uwe =?iso-8859-1?q?Kleine-K=F6ni?= =?iso-8859-1?q?g?= , Matthias Brugger , AngeloGioacchino Del Regno , John Crispin Subject: [PATCH v2 2/2] pwm: mediatek: Add support for MT7981 Message-ID: <7c6e31c844642c199f223f4229a04a37b57a34f3.1681992038.git.daniel@makrotopia.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230420_053630_995060_E291C6C3 X-CRM114-Status: GOOD ( 15.12 ) 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 The PWM unit on MT7981 uses different register offsets than previous MediaTek PWM units. Add support for these new offsets and add support for PWM on MT7981 which has 3 PWM channels, one of them is typically used for a temperature controlled fan. Signed-off-by: Daniel Golle Reviewed-by: AngeloGioacchino Del Regno --- Changes since v1: * use pointer to reg_offset instead of u8 reg_ver and if-else drivers/pwm/pwm-mediatek.c | 39 ++++++++++++++++++++++++++++++-------- 1 file changed, 31 insertions(+), 8 deletions(-) diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c index 5b5eeaff35da6..7a51d210a8778 100644 --- a/drivers/pwm/pwm-mediatek.c +++ b/drivers/pwm/pwm-mediatek.c @@ -38,6 +38,7 @@ struct pwm_mediatek_of_data { unsigned int num_pwms; bool pwm45_fixup; bool has_ck_26m_sel; + const unsigned int *reg_offset; }; /** @@ -59,10 +60,14 @@ struct pwm_mediatek_chip { const struct pwm_mediatek_of_data *soc; }; -static const unsigned int pwm_mediatek_reg_offset[] = { +static const unsigned int mtk_pwm_reg_offset_v1[] = { 0x0010, 0x0050, 0x0090, 0x00d0, 0x0110, 0x0150, 0x0190, 0x0220 }; +static const unsigned int mtk_pwm_reg_offset_v2[] = { + 0x0080, 0x00c0, 0x0100, 0x0140, 0x0180, 0x01c0, 0x0200, 0x0240 +}; + static inline struct pwm_mediatek_chip * to_pwm_mediatek_chip(struct pwm_chip *chip) { @@ -111,7 +116,7 @@ static inline void pwm_mediatek_writel(struct pwm_mediatek_chip *chip, unsigned int num, unsigned int offset, u32 value) { - writel(value, chip->regs + pwm_mediatek_reg_offset[num] + offset); + writel(value, chip->regs + chip->soc->reg_offset[num] + offset); } static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm, @@ -285,60 +290,77 @@ static const struct pwm_mediatek_of_data mt2712_pwm_data = { .num_pwms = 8, .pwm45_fixup = false, .has_ck_26m_sel = false, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt6795_pwm_data = { .num_pwms = 7, .pwm45_fixup = false, .has_ck_26m_sel = false, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7622_pwm_data = { .num_pwms = 6, .pwm45_fixup = false, .has_ck_26m_sel = true, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7623_pwm_data = { .num_pwms = 5, .pwm45_fixup = true, .has_ck_26m_sel = false, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7628_pwm_data = { .num_pwms = 4, .pwm45_fixup = true, .has_ck_26m_sel = false, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7629_pwm_data = { .num_pwms = 1, .pwm45_fixup = false, .has_ck_26m_sel = false, + .reg_offset = mtk_pwm_reg_offset_v1, }; -static const struct pwm_mediatek_of_data mt8183_pwm_data = { - .num_pwms = 4, +static const struct pwm_mediatek_of_data mt7981_pwm_data = { + .num_pwms = 3, .pwm45_fixup = false, .has_ck_26m_sel = true, + .reg_offset = mtk_pwm_reg_offset_v2, }; -static const struct pwm_mediatek_of_data mt8365_pwm_data = { - .num_pwms = 3, +static const struct pwm_mediatek_of_data mt7986_pwm_data = { + .num_pwms = 2, .pwm45_fixup = false, .has_ck_26m_sel = true, + .reg_offset = mtk_pwm_reg_offset_v1, }; -static const struct pwm_mediatek_of_data mt7986_pwm_data = { - .num_pwms = 2, +static const struct pwm_mediatek_of_data mt8183_pwm_data = { + .num_pwms = 4, + .pwm45_fixup = false, + .has_ck_26m_sel = true, + .reg_offset = mtk_pwm_reg_offset_v1, +}; + +static const struct pwm_mediatek_of_data mt8365_pwm_data = { + .num_pwms = 3, .pwm45_fixup = false, .has_ck_26m_sel = true, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt8516_pwm_data = { .num_pwms = 5, .pwm45_fixup = false, .has_ck_26m_sel = true, + .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct of_device_id pwm_mediatek_of_match[] = { @@ -348,6 +370,7 @@ static const struct of_device_id pwm_mediatek_of_match[] = { { .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data }, { .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data }, { .compatible = "mediatek,mt7629-pwm", .data = &mt7629_pwm_data }, + { .compatible = "mediatek,mt7981-pwm", .data = &mt7981_pwm_data }, { .compatible = "mediatek,mt7986-pwm", .data = &mt7986_pwm_data }, { .compatible = "mediatek,mt8183-pwm", .data = &mt8183_pwm_data }, { .compatible = "mediatek,mt8365-pwm", .data = &mt8365_pwm_data },