From patchwork Tue Jun 18 12:08:17 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: 805734 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 AB03E13C661; Tue, 18 Jun 2024 12:09:16 +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=1718712556; cv=none; b=pELPbQkAhdYZPGE6PdkLcIBeFPhSklMYjMY9TRocmcYAG9pQwgOqK2H3zZBPtzazTKUS8pvFfAGewVow2HNym0KhJfAfdY0Hse2Kto8DLyk7MbFy/J9Ev6aKgS9QAd6zGccbY9K91cH31NeAr/F4iNIJcs1v8vaHrN6E+qB1h48= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718712556; c=relaxed/simple; bh=6eHddPVGPNGu45tjA8N1T/anIVe7WOGhBOGi7XxkJdc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=lvZlV/hJ/hJm2bxJuyIQ1ViNaHp0AcSXM6eb7+xU4krgCkkkSsPAvf/nUHU67cE+S9KOxQDncJyvGECu/zEVxXfyWLiAVuVtxu3QzKDl/g+oVjVpJXXQWxUEFMSMawLutqEDiLbhTcwgEtz4a0UJL8VyLjvZCPVEVAwWYDicGn8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cC43U3Cu; 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="cC43U3Cu" Received: by smtp.kernel.org (Postfix) with ESMTPS id 627E9C4DDF5; Tue, 18 Jun 2024 12:09:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718712556; bh=6eHddPVGPNGu45tjA8N1T/anIVe7WOGhBOGi7XxkJdc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=cC43U3CuQXq8V2F1NSmN8rubVSAGKnjVcsh526T5mTvcENOME+2NZjyW3wfn2ogZX ap8m0T1d6ld+Y5ao7rVKIxz+Jyci+MdLxvEh9ZQOh+hBcKULCvvHKWmivuDJQ+JWkc gCK7SJxkxsmt1XxVisLffvG4xnBk0EYrUmbu8DsIelaNKCaQLUOersvP9m89nsO+FM f+EBOHmPpzTniNj64WG6XCx40f9Lx/akby5BMXIpEVhMGXcPVg0nu8DT7eitzA7BRy nUXxKVr3QK7F/lSjZN3mACaz4GF/+ykK8laeSWY0siV7Yj7+6bgW3a5Hpb2HEnpSF+ DWDr8CsX/pntw== 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 56BFDC2BA1A; Tue, 18 Jun 2024 12:09:16 +0000 (UTC) From: =?utf-8?q?Duje_Mihanovi=C4=87_via_B4_Relay?= Date: Tue, 18 Jun 2024 14:08:17 +0200 Subject: [PATCH RESEND v10 06/12] clk: mmp: Add Marvell PXA1908 APBCP driver Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240618-pxa1908-lkml-v10-6-754e5ece9078@skole.hr> References: <20240618-pxa1908-lkml-v10-0-754e5ece9078@skole.hr> In-Reply-To: <20240618-pxa1908-lkml-v10-0-754e5ece9078@skole.hr> To: Michael Turquette , Stephen Boyd , Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Tony Lindgren , Haojian Zhuang , =?utf-8?q?Duje_Mihanovi=C4=87?= , Lubomir Rintel , Catalin Marinas , Will Deacon , Tony Luck , "Guilherme G. Piccoli" , Rob Herring , Kees Cook 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 0.14.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3684; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=USsJLoGDJXHCWdJAW+Lle+IllTO8RpuR/kOtJOEgQTM=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBmcXjSzjdqPrk5439ujl37FnaOZCH/H4FxOSGuV 7KtJlxxbWGJAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZnF40gAKCRCaEZ6wQi2W 4ZR9D/0abX3/veVQFsJm4Y8Z43Zyb6M+Jh7Qn+CmNgrYQmUACzFHDxHJGw75/yY9DDLNZE5zUBB b52erwMRTeDDLLDJwYfehJIgWDwgbCvEH2e9AgQfOD+jNwImTcMtnaJRMihx4S0ZMQ87A3Ywhg5 /G8H5q0eMHxGs3+H9MMxF4Rpg+Gy9xS1eWFqv8egN8bsNXr6wxXkiKqgjfW0yEHI24zgoJ+g65q +VXlZHbsOOvOg8Fvje31nP+4+UgdYwcPAERqwuDq52+sQkugFoG5GDuBJZOiHcNKt0Ab6D4SBq9 Cte7vaW0ju5/rYo8jojgIJa7YUZbFb0W0Zsy/5aFvWT1xcFnqUK+vPpoB0rd34d1uTsbYT+HvCD T4wceQmDxLJ8cH7DVqD8jwkRVQJpu28hb/MMuECzXBI+m50VD/sUF/Ugse/ltv0YV6yKlKEOwbA gUmym54Qxhcu3KUQ+ZBSwAHIRY7sI2U77nKbdeuwlpnRRPll57eaWvKOyfjEHsDEM1hqS3/xsX4 P1+Rl/yfweqhVrRx1Wt1P/fsigVJ87nKYKaldlsvJnINfbgl7ubkwm1NW/PjsPayT7CS1ifMbaZ fKk8rzPgzaPZVAdqQxmoFZZ3lqQ1ygklVMUQs0xck4IQSc8F4CWJ8R/2gRDF/3OL6ipU/nCoI08 qskazq/HwR7lsSA== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 X-Endpoint-Received: by B4 Relay for duje.mihanovic@skole.hr/default with auth_id=112 X-Original-From: =?utf-8?q?Duje_Mihanovi=C4=87?= Reply-To: duje.mihanovic@skole.hr From: Duje Mihanović Add driver for the APBCP controller block found on Marvell's PXA1908 SoC. Signed-off-by: Duje Mihanović --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-pxa1908-apbcp.c | 84 +++++++++++++++++++++++++++++++++++++ 2 files changed, 85 insertions(+), 1 deletion(-) diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 685bb80f8ae1..038bcd4d035e 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 +obj-$(CONFIG_ARCH_MMP) += clk-of-pxa1928.o clk-pxa1908-apbc.o clk-pxa1908-apbcp.o diff --git a/drivers/clk/mmp/clk-pxa1908-apbcp.c b/drivers/clk/mmp/clk-pxa1908-apbcp.c new file mode 100644 index 000000000000..2a53cf276407 --- /dev/null +++ b/drivers/clk/mmp/clk-pxa1908-apbcp.c @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" + +#define APBCP_UART2 0x1c +#define APBCP_TWSI2 0x28 +#define APBCP_AICER 0x38 + +#define APBCP_NR_CLKS 4 + +struct pxa1908_clk_unit { + struct mmp_clk_unit unit; + void __iomem *base; +}; + +static DEFINE_SPINLOCK(uart2_lock); + +static const char * const uart_parent_names[] = {"pll1_117", "uart_pll"}; + +static struct mmp_param_gate_clk apbcp_gate_clks[] = { + {PXA1908_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, APBCP_UART2, 0x7, 0x3, 0x0, 0, &uart2_lock}, + {PXA1908_CLK_TWSI2, "twsi2_clk", "pll1_32", CLK_SET_RATE_PARENT, APBCP_TWSI2, 0x7, 0x3, 0x0, 0, NULL}, + {PXA1908_CLK_AICER, "ripc_clk", NULL, 0, APBCP_AICER, 0x7, 0x2, 0x0, 0, NULL}, +}; + +static struct mmp_param_mux_clk apbcp_mux_clks[] = { + {0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBCP_UART2, 4, 3, 0, &uart2_lock}, +}; + +static void pxa1908_apb_p_periph_clk_init(struct pxa1908_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apbcp_mux_clks, pxa_unit->base, + ARRAY_SIZE(apbcp_mux_clks)); + mmp_register_gate_clks(unit, apbcp_gate_clks, pxa_unit->base, + ARRAY_SIZE(apbcp_gate_clks)); +} + +static int pxa1908_apbcp_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, APBCP_NR_CLKS); + + pxa1908_apb_p_periph_clk_init(pxa_unit); + + return 0; +} + +static const struct of_device_id pxa1908_apbcp_match_table[] = { + { .compatible = "marvell,pxa1908-apbcp" }, + { } +}; +MODULE_DEVICE_TABLE(of, pxa1908_apbcp_match_table); + +static struct platform_driver pxa1908_apbcp_driver = { + .probe = pxa1908_apbcp_probe, + .driver = { + .name = "pxa1908-apbcp", + .of_match_table = pxa1908_apbcp_match_table + } +}; +module_platform_driver(pxa1908_apbcp_driver); + +MODULE_AUTHOR("Duje Mihanović "); +MODULE_DESCRIPTION("Marvell PXA1908 APBCP Clock Driver"); +MODULE_LICENSE("GPL");