From patchwork Fri Aug 23 20:54:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87_via_B4_Relay?= X-Patchwork-Id: 821845 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 185961C86E2; Fri, 23 Aug 2024 20:55:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724446540; cv=none; b=qEFFpexN6mYdAHzZPToIY/03tQjS+/IQPzUIngi9SYmFP4Aw7i+/dhGwKRk5JwoNx0xb2qdFcxpvD6fWgtf3PJUc/64hpST+4EyCgTB2h7N4hdWgM5MPXByrxyYns4m+OArLjsgWqnoOXxYBnTnzloOzVgcpYgqFGt1F+eFFM6w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724446540; c=relaxed/simple; bh=3VLoOfeK4SmzwJCGe8jUQoPK74iqKqEtZ1zhNESSsZ0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XayMRPbbt5AEfEH+q6GqT1/NH9p4M9Y2cyYLZ61RDmw4GjdE+o0SZH0Agh+/Fd3e54GXs2uNY9KGvWd00VTAdhax+AQBNu+9uK4jsOrIpXffnnpqNZ2EiMk/SoP/VXISG8UUjs9ev3nkqWc188NX/Oek0wKM3Zw3vKgl8Z4nxjo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rCTApoP/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rCTApoP/" Received: by smtp.kernel.org (Postfix) with ESMTPS id 898D8C4DDE5; Fri, 23 Aug 2024 20:55:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724446539; bh=3VLoOfeK4SmzwJCGe8jUQoPK74iqKqEtZ1zhNESSsZ0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=rCTApoP/oK18P0ULBwl7pZmPo3U/K3ZtYQcqwFXtcPrsZl8/uBWwokFHURDIF6pL+ JB+vLYukdk/r4P5s0zaxvYVJYaEjcii+JLZMvN5GCxe0J1WNTW3i4uXI6eGrtJwTRZ F91bT4rtyVDwnHzUEl4MKHrCv9UUdguqqf/iK8/4T5BGsyPwkayYnMbZdRtV58xHAh CUXce1RU6LdsTZjZuBg4gZi16ioNbgNpmo2ox+kmZNUvlsCQ3JkGGq1hngK5qDzXeO PHRa5s77ifqGjT2o3vDRC0n+ndSSbNAv6rhdhY53DkR2NNlG+rQVLzqAQy8KpBEY1+ l/0TQt7gm5QGw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F33FC5321D; Fri, 23 Aug 2024 20:55:39 +0000 (UTC) From: =?utf-8?q?Duje_Mihanovi=C4=87_via_B4_Relay?= Date: Fri, 23 Aug 2024 22:54:42 +0200 Subject: [PATCH v12 07/12] clk: mmp: Add Marvell PXA1908 APMU driver Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240823-pxa1908-lkml-v12-7-cc3ada51beb0@skole.hr> References: <20240823-pxa1908-lkml-v12-0-cc3ada51beb0@skole.hr> In-Reply-To: <20240823-pxa1908-lkml-v12-0-cc3ada51beb0@skole.hr> To: Michael Turquette , Stephen Boyd , Linus Walleij , Rob Herring , Conor Dooley , Tony Lindgren , Haojian Zhuang , =?utf-8?q?Duje_Mihanovi=C4=87?= , Lubomir Rintel , Catalin Marinas , Will Deacon , Rob Herring , Krzysztof Kozlowski Cc: phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Karel Balej , David Wronek , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=5599; i=duje.mihanovic@skole.hr; s=20240706; h=from:subject:message-id; bh=etQbDEAQHjOwcM5qnhZUzNzuW/R9TppvA6ehNPnVl2s=; b=owGbwMvMwCW21nBykGv/WmbG02pJDGknvmuuF1cTkCtqu/SGwdozQTfsbqaTwU3/Wd3K9naz9 vh2zazsKGVhEONikBVTZMn973iN97PI1u3Zywxg5rAygQxh4OIUgIk8kWP4X2bmceri702sXN6s 8cfcJtU9aRGdunnKoubg8oqan3ytKxkZ1miJCTT8ZYneLeC5T7L5VTWnd6+9waL6+kU5UnbVl9+ wAQA= X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=6DFF41D60DF314B5B76BA630AD319352458FAD03 X-Endpoint-Received: by B4 Relay for duje.mihanovic@skole.hr/20240706 with auth_id=191 X-Original-From: =?utf-8?q?Duje_Mihanovi=C4=87?= Reply-To: duje.mihanovic@skole.hr From: Duje Mihanović Add driver for the APMU controller block found on Marvell's PXA1908 SoC. This driver is incomplete, lacking support for (at least) GPU, VPU, DSI and CCIC (camera related) clocks. Signed-off-by: Duje Mihanović --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-pxa1908-apmu.c | 121 +++++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+), 1 deletion(-) diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 038bcd4d035e..a8b1a4b08824 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -11,4 +11,4 @@ obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o clk-of-pxa910.o obj-$(CONFIG_COMMON_CLK_MMP2) += clk-of-mmp2.o clk-pll.o pwr-island.o obj-$(CONFIG_COMMON_CLK_MMP2_AUDIO) += clk-audio.o -obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-pxa1908-apbc.o clk-pxa1908-apbcp.o +obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-pxa1908-apbc.o clk-pxa1908-apbcp.o clk-pxa1908-apmu.o diff --git a/drivers/clk/mmp/clk-pxa1908-apmu.c b/drivers/clk/mmp/clk-pxa1908-apmu.c new file mode 100644 index 000000000000..8cfb1258202f --- /dev/null +++ b/drivers/clk/mmp/clk-pxa1908-apmu.c @@ -0,0 +1,121 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include + +#include + +#include "clk.h" + +#define APMU_CLK_GATE_CTRL 0x40 +#define APMU_CCIC1 0x24 +#define APMU_ISP 0x38 +#define APMU_DSI1 0x44 +#define APMU_DISP1 0x4c +#define APMU_CCIC0 0x50 +#define APMU_SDH0 0x54 +#define APMU_SDH1 0x58 +#define APMU_USB 0x5c +#define APMU_NF 0x60 +#define APMU_VPU 0xa4 +#define APMU_GC 0xcc +#define APMU_SDH2 0xe0 +#define APMU_GC2D 0xf4 +#define APMU_TRACE 0x108 +#define APMU_DVC_DFC_DEBUG 0x140 + +#define APMU_NR_CLKS 17 + +struct pxa1908_clk_unit { + struct mmp_clk_unit unit; + void __iomem *base; +}; + +static DEFINE_SPINLOCK(pll1_lock); +static struct mmp_param_general_gate_clk pll1_gate_clks[] = { + {PXA1908_CLK_PLL1_D2_GATE, "pll1_d2_gate", "pll1_d2", 0, APMU_CLK_GATE_CTRL, 29, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_416_GATE, "pll1_416_gate", "pll1_416", 0, APMU_CLK_GATE_CTRL, 27, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_624_GATE, "pll1_624_gate", "pll1_624", 0, APMU_CLK_GATE_CTRL, 26, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_832_GATE, "pll1_832_gate", "pll1_832", 0, APMU_CLK_GATE_CTRL, 30, 0, &pll1_lock}, + {PXA1908_CLK_PLL1_1248_GATE, "pll1_1248_gate", "pll1_1248", 0, APMU_CLK_GATE_CTRL, 28, 0, &pll1_lock}, +}; + +static DEFINE_SPINLOCK(sdh0_lock); +static DEFINE_SPINLOCK(sdh1_lock); +static DEFINE_SPINLOCK(sdh2_lock); + +static const char * const sdh_parent_names[] = {"pll1_416", "pll1_624"}; + +static struct mmp_clk_mix_config sdh_mix_config = { + .reg_info = DEFINE_MIX_REG_INFO(3, 8, 2, 6, 11), +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {PXA1908_CLK_USB, "usb_clk", NULL, 0, APMU_USB, 0x9, 0x9, 0x1, 0, NULL}, + {PXA1908_CLK_SDH0, "sdh0_clk", "sdh0_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH0, 0x12, 0x12, 0x0, 0, &sdh0_lock}, + {PXA1908_CLK_SDH1, "sdh1_clk", "sdh1_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH1, 0x12, 0x12, 0x0, 0, &sdh1_lock}, + {PXA1908_CLK_SDH2, "sdh2_clk", "sdh2_mix_clk", CLK_SET_RATE_PARENT | CLK_SET_RATE_UNGATE, APMU_SDH2, 0x12, 0x12, 0x0, 0, &sdh2_lock} +}; + +static void pxa1908_axi_periph_clk_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_general_gate_clks(unit, pll1_gate_clks, + pxa_unit->base, ARRAY_SIZE(pll1_gate_clks)); + + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->base + APMU_SDH0; + mmp_clk_register_mix(NULL, "sdh0_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh0_lock); + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->base + APMU_SDH1; + mmp_clk_register_mix(NULL, "sdh1_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh1_lock); + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->base + APMU_SDH2; + mmp_clk_register_mix(NULL, "sdh2_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh2_lock); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static int pxa1908_apmu_probe(struct platform_device *pdev) +{ + struct pxa1908_clk_unit *pxa_unit; + + pxa_unit = devm_kzalloc(&pdev->dev, sizeof(*pxa_unit), GFP_KERNEL); + if (IS_ERR(pxa_unit)) + return PTR_ERR(pxa_unit); + + pxa_unit->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pxa_unit->base)) + return PTR_ERR(pxa_unit->base); + + mmp_clk_init(pdev->dev.of_node, &pxa_unit->unit, APMU_NR_CLKS); + + pxa1908_axi_periph_clk_init(pxa_unit); + + return 0; +} + +static const struct of_device_id pxa1908_apmu_match_table[] = { + { .compatible = "marvell,pxa1908-apmu" }, + { } +}; +MODULE_DEVICE_TABLE(of, pxa1908_apmu_match_table); + +static struct platform_driver pxa1908_apmu_driver = { + .probe = pxa1908_apmu_probe, + .driver = { + .name = "pxa1908-apmu", + .of_match_table = pxa1908_apmu_match_table + } +}; +module_platform_driver(pxa1908_apmu_driver); + +MODULE_AUTHOR("Duje Mihanović "); +MODULE_DESCRIPTION("Marvell PXA1908 APMU Clock Driver"); +MODULE_LICENSE("GPL");