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Thu, 22 Oct 2020 20:37:56 +0800 From: Weiyi Lu To: Matthias Brugger , Rob Herring , Stephen Boyd , Nicolas Boichat Subject: [PATCH v4 30/34] clk: mediatek: Add MT8192 msdc clock support Date: Thu, 22 Oct 2020 20:37:23 +0800 Message-ID: <1603370247-30437-31-git-send-email-weiyi.lu@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1603370247-30437-1-git-send-email-weiyi.lu@mediatek.com> References: <1603370247-30437-1-git-send-email-weiyi.lu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201022_084826_520416_B721E55E X-CRM114-Status: GOOD ( 18.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Weiyi Lu , srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add MT8192 msdc clock provider Signed-off-by: Weiyi Lu --- drivers/clk/mediatek/Kconfig | 6 ++++ drivers/clk/mediatek/Makefile | 1 + drivers/clk/mediatek/clk-mt8192-msdc.c | 57 ++++++++++++++++++++++++++++++++++ 3 files changed, 64 insertions(+) create mode 100644 drivers/clk/mediatek/clk-mt8192-msdc.c diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index 01a76ae..4b8cae6 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -557,6 +557,12 @@ config COMMON_CLK_MT8192_MSDC_TOP help This driver supports MediaTek MT8192 msdc_top clocks. +config COMMON_CLK_MT8192_MSDC + bool "Clock driver for MediaTek MT8192 msdc" + depends on COMMON_CLK_MT8192 + help + This driver supports MediaTek MT8192 msdc clocks. + config COMMON_CLK_MT8516 bool "Clock driver for MediaTek MT8516" depends on ARCH_MEDIATEK || COMPILE_TEST diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile index 4a30269..31e134b 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -80,5 +80,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_MDPSYS) += clk-mt8192-mdp.o obj-$(CONFIG_COMMON_CLK_MT8192_MFGCFG) += clk-mt8192-mfg.o obj-$(CONFIG_COMMON_CLK_MT8192_MMSYS) += clk-mt8192-mm.o obj-$(CONFIG_COMMON_CLK_MT8192_MSDC_TOP) += clk-mt8192-msdc_top.o +obj-$(CONFIG_COMMON_CLK_MT8192_MSDC) += clk-mt8192-msdc.o obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o diff --git a/drivers/clk/mediatek/clk-mt8192-msdc.c b/drivers/clk/mediatek/clk-mt8192-msdc.c new file mode 100644 index 0000000..9d2b168 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8192-msdc.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright (c) 2020 MediaTek Inc. +// Author: Weiyi Lu + +#include +#include + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include + +static const struct mtk_gate_regs msdc_cg_regs = { + .set_ofs = 0xb4, + .clr_ofs = 0xb4, + .sta_ofs = 0xb4, +}; + +#define GATE_MSDC(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &msdc_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate msdc_clks[] = { + GATE_MSDC(CLK_MSDC_AXI_WRAP, "msdc_axi_wrap", "axi_sel", 22), +}; + +static int clk_mt8192_msdc_probe(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + + clk_data = mtk_alloc_clk_data(CLK_MSDC_NR_CLK); + if (!clk_data) + return -ENOMEM; + + r = mtk_clk_register_gates(node, msdc_clks, ARRAY_SIZE(msdc_clks), clk_data); + if (r) + return r; + + return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); +} + +static const struct of_device_id of_match_clk_mt8192_msdc[] = { + { .compatible = "mediatek,mt8192-msdc", }, + {} +}; + +static struct platform_driver clk_mt8192_msdc_drv = { + .probe = clk_mt8192_msdc_probe, + .driver = { + .name = "clk-mt8192-msdc", + .of_match_table = of_match_clk_mt8192_msdc, + }, +}; + +builtin_platform_driver(clk_mt8192_msdc_drv);