From patchwork Fri Jan 21 07:45:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liang Yang X-Patchwork-Id: 12719391 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 27036C433FE for ; Fri, 21 Jan 2022 07:46:44 +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: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:In-Reply-To:References: List-Owner; bh=YsSmlXyfm/YIKYXsMU97PhjcG654Zi7zgejPi7gY94g=; b=iNm3m+7Ztq98b5 jahAds5AIZQeHX1TZuXfQtpsP+vxtzP+sPEH0mq1YeNwKHW5TsTlmfEpkJuu4s6y+pwWTfVcAeZE6 FBVvd/2hUUv/VlV5pOPbco3pexPVhuzeRbfLFluSPEvZLQe7yCwIXd4RBTvlpUaNRAyK6gJKeS/Ld 7gKTCetpxTk/Au1E5bqukLQjXOCn465u+nsCKCWUmks0srT6N0AGSeZV6HvRALOycVP0xFOlNtc9Z mQ54ZT9pDxlG435Oh333Vodnh/gt8YItbSCHOBG1A9GCJecg1GpcLP94r8EeWBU0z8fGxWa/AhbOa XoirTsd/hyIIRohoYZUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAobq-00E5tE-LM; Fri, 21 Jan 2022 07:45:22 +0000 Received: from mail-sz.amlogic.com ([211.162.65.117]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAobn-00E5rn-0V; Fri, 21 Jan 2022 07:45:20 +0000 Received: from droid11-sz.amlogic.com (10.28.8.21) by mail-sz.amlogic.com (10.28.11.5) with Microsoft SMTP Server id 15.1.2176.2; Fri, 21 Jan 2022 15:45:11 +0800 From: Liang Yang To: Neil Armstrong , Jerome Brunet , Kevin Hilman , Michael Turquette , Stephen Boyd , Rob Herring , CC: Liang Yang , Martin Blumenstingl , Jianxin Pan , Victor Wan , XianWei Zhao , Kelvin Zhang , BiChao Zheng , YongHui Yu , , , , Subject: [PATCH v10 0/4] clk: meson: add a sub EMMC clock controller support Date: Fri, 21 Jan 2022 15:45:04 +0800 Message-ID: <20220121074508.42168-1-liang.yang@amlogic.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.28.8.21] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220120_234519_104558_E3384957 X-CRM114-Status: GOOD ( 14.10 ) 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 driver will add a MMC clock controller driver support. The original idea about adding a clock controller is during the discussion in the NAND driver mainline effort[1]. This driver is tested in the S400 board (AXG platform) with NAND driver. Changes since v9 [10] - use clk_parent_data instead of parent_names Changes since v8 [9] - use MESON_SCLK_ONE_BASED instead of CLK_DIVIDER_ONE_BASED - use struct_size to caculate onecell_data - add clk-phase-delay.h - define CLK_DELAY_STEP_PS_GX and CLK_DELAY_STEP_PS_AXG Changes since v7 [8] - move meson_clk_get_phase_delay_data() from header to driver - CONFIG sclk-div with COMMON_CLK_AMLOGIC instead of COMMON_CLK_AMLOGIC_AUDIO - remove onecell date and ID for internal MUX clk - use helper for functions for ONE_BASED in sclk-div - add ONE_BASED support for duty cycle Changes since v6 [7]: - add one based support for sclk divier - alloc sclk in probe for multiple instance - fix coding styles Changes since v5 [6]: - remove divider ops with .init and use sclk_div instead - drop CLK_DIVIDER_ROUND_CLOSEST in mux and div - drop the useless type cast Changes since v4 [5]: - use struct parm in phase delay driver - remove 0 delay releted part in phase delay driver - don't rebuild the parent name once again - add divider ops with .init Changes since v3 [4]: - separate clk-phase-delay driver - replace clk_get_rate() with clk_hw_get_rate() - collect Rob's R-Y - drop 'meson-' prefix from compatible string Changes since v2 [3]: - squash dt-binding clock-id patch - update license - fix alignment - construct a clk register helper() function Changes since v1 [2]: - implement phase clock - update compatible name - adjust file name - divider probe() into small functions, and re-use them [1] https://lkml.kernel.org/r/20180628090034.0637a062@xps13 [2] https://lkml.kernel.org/r/20180703145716.31860-1-yixun.lan@amlogic.com [3] https://lkml.kernel.org/r/20180710163658.6175-1-yixun.lan@amlogic.com [4] https://lkml.kernel.org/r/20180712211244.11428-1-yixun.lan@amlogic.com [5] https://lkml.kernel.org/r/20180809070724.11935-4-yixun.lan@amlogic.com [6] https://lkml.kernel.org/r/1539839245-13793-1-git-send-email-jianxin.pan@amlogic.com [7] https://lkml.kernel.org/r/1541089855-19356-1-git-send-email-jianxin.pan@amlogic.com [8] https://lkml.kernel.org/r/1544457877-51301-1-git-send-email-jianxin.pan@amlogic.com [9] https://lkml.kernel.org/r/1545063850-21504-1-git-send-email-jianxin.pan@amlogic.com [10] https://lore.kernel.org/all/20220113115745.45826-1-liang.yang@amlogic.com/ Liang Yang (4): clk: meson: add one based divider support for sclk clk: meson: add emmc sub clock phase delay driver clk: meson: add DT documentation for emmc clock controller clk: meson: add sub MMC clock controller driver .../bindings/clock/amlogic,mmc-clkc.yaml | 64 ++++ drivers/clk/meson/Kconfig | 18 ++ drivers/clk/meson/Makefile | 2 + drivers/clk/meson/clk-phase-delay.c | 69 ++++ drivers/clk/meson/clk-phase-delay.h | 20 ++ drivers/clk/meson/mmc-clkc.c | 302 ++++++++++++++++++ drivers/clk/meson/sclk-div.c | 59 ++-- drivers/clk/meson/sclk-div.h | 3 + include/dt-bindings/clock/amlogic,mmc-clkc.h | 14 + 9 files changed, 529 insertions(+), 22 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.yaml create mode 100644 drivers/clk/meson/clk-phase-delay.c create mode 100644 drivers/clk/meson/clk-phase-delay.h create mode 100644 drivers/clk/meson/mmc-clkc.c create mode 100644 include/dt-bindings/clock/amlogic,mmc-clkc.h