[v3,2/6] clk: mvebu: add helper file for Armada AP and CP clocks

Message ID	20181216094147.6468-3-gregory.clement@bootlin.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> From: Gregory CLEMENT <gregory.clement@bootlin.com> To: Stephen Boyd <sboyd@codeaurora.org>, Mike Turquette <mturquette@baylibre.com>, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 2/6] clk: mvebu: add helper file for Armada AP and CP clocks Date: Sun, 16 Dec 2018 10:41:43 +0100 Message-Id: <20181216094147.6468-3-gregory.clement@bootlin.com> In-Reply-To: <20181216094147.6468-1-gregory.clement@bootlin.com> References: <20181216094147.6468-1-gregory.clement@bootlin.com> MIME-Version: 1.0 Precedence: list Cc: devicetree@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>, Antoine Tenart <antoine.tenart@bootlin.com>, Gregory CLEMENT <gregory.clement@bootlin.com>, Maxime Chevallier <maxime.chevallier@bootlin.com>, Rob Herring <robh+dt@kernel.org>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, =?utf-8?q?Miqu=C3=A8l_Rayn?= =?utf-8?q?al?= <miquel.raynal@bootlin.com>, linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
Series	Add CPU clock support for Armada 7K/8K \| expand [v3,0/6] Add CPU clock support for Armada 7K/8K [v3,1/6] dt-bindings: ap806: add the cluster clock node in the syscon file [v3,2/6] clk: mvebu: add helper file for Armada AP and CP clocks [v3,3/6] clk: mvebu: add CPU clock driver for Armada 7K/8K [v3,4/6] clk: mvebu: ap806: Fix clock name for the cluster [v3,5/6] arm64: marvell: enable the Armada 7K/8K CPU clk driver [v3,6/6] arm64: dts: marvell: Add cpu clock node on Armada 7K/8K

diff --git a/drivers/clk/mvebu/Kconfig b/drivers/clk/mvebu/Kconfig index fddc8ac5faff..5492fae3f0ab 100644 --- a/drivers/clk/mvebu/Kconfig +++ b/drivers/clk/mvebu/Kconfig @@ -7,6 +7,9 @@ config MVEBU_CLK_CPU config MVEBU_CLK_COREDIV bool +config ARMADA_AP_CP_HELPER + bool + config ARMADA_370_CLK bool select MVEBU_CLK_COMMON @@ -34,9 +37,11 @@ config ARMADA_XP_CLK config ARMADA_AP806_SYSCON bool + select ARMADA_AP_CP_HELPER config ARMADA_CP110_SYSCON bool + select ARMADA_AP_CP_HELPER config DOVE_CLK bool diff --git a/drivers/clk/mvebu/Makefile b/drivers/clk/mvebu/Makefile index 93ac3685271f..6638ad962ec1 100644 --- a/drivers/clk/mvebu/Makefile +++ b/drivers/clk/mvebu/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_MVEBU_CLK_COMMON) += common.o obj-$(CONFIG_MVEBU_CLK_CPU) += clk-cpu.o obj-$(CONFIG_MVEBU_CLK_COREDIV) += clk-corediv.o +obj-$(CONFIG_ARMADA_AP_CP_HELPER) += armada_ap_cp_helper.o obj-$(CONFIG_ARMADA_370_CLK) += armada-370.o obj-$(CONFIG_ARMADA_375_CLK) += armada-375.o diff --git a/drivers/clk/mvebu/ap806-system-controller.c b/drivers/clk/mvebu/ap806-system-controller.c index ea54a874bbda..0a58824ff053 100644 --- a/drivers/clk/mvebu/ap806-system-controller.c +++ b/drivers/clk/mvebu/ap806-system-controller.c @@ -10,11 +10,11 @@ #define pr_fmt(fmt) "ap806-system-controller: " fmt +#include "armada_ap_cp_helper.h" #include <linux/clk-provider.h> #include <linux/mfd/syscon.h> #include <linux/init.h> #include <linux/of.h> -#include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/regmap.h> @@ -30,18 +30,6 @@ static struct clk_onecell_data ap806_clk_data = { .clk_num = AP806_CLK_NUM, }; -static char *ap806_unique_name(struct device *dev, struct device_node *np, - char *name) -{ - const __be32 *reg; - u64 addr; - - reg = of_get_property(np, "reg", NULL); - addr = of_translate_address(np, reg); - return devm_kasprintf(dev, GFP_KERNEL, "%llx-%s", - (unsigned long long)addr, name); -} - static int ap806_syscon_common_probe(struct platform_device *pdev, struct device_node *syscon_node) { @@ -109,7 +97,7 @@ static int ap806_syscon_common_probe(struct platform_device *pdev, cpuclk_freq *= 1000 * 1000; /* CPU clocks depend on the Sample At Reset configuration */ - name = ap806_unique_name(dev, syscon_node, "cpu-cluster-0"); + name = ap_cp_unique_name(dev, syscon_node, "cpu-cluster-0"); ap806_clks[0] = clk_register_fixed_rate(dev, name, NULL, 0, cpuclk_freq); if (IS_ERR(ap806_clks[0])) { @@ -117,7 +105,7 @@ static int ap806_syscon_common_probe(struct platform_device *pdev, goto fail0; } - name = ap806_unique_name(dev, syscon_node, "cpu-cluster-1"); + name = ap_cp_unique_name(dev, syscon_node, "cpu-cluster-1"); ap806_clks[1] = clk_register_fixed_rate(dev, name, NULL, 0, cpuclk_freq); if (IS_ERR(ap806_clks[1])) { @@ -126,7 +114,7 @@ static int ap806_syscon_common_probe(struct platform_device *pdev, } /* Fixed clock is always 1200 Mhz */ - fixedclk_name = ap806_unique_name(dev, syscon_node, "fixed"); + fixedclk_name = ap_cp_unique_name(dev, syscon_node, "fixed"); ap806_clks[2] = clk_register_fixed_rate(dev, fixedclk_name, NULL, 0, 1200 * 1000 * 1000); if (IS_ERR(ap806_clks[2])) { @@ -135,7 +123,7 @@ static int ap806_syscon_common_probe(struct platform_device *pdev, } /* MSS Clock is fixed clock divided by 6 */ - name = ap806_unique_name(dev, syscon_node, "mss"); + name = ap_cp_unique_name(dev, syscon_node, "mss"); ap806_clks[3] = clk_register_fixed_factor(NULL, name, fixedclk_name, 0, 1, 6); if (IS_ERR(ap806_clks[3])) { @@ -144,7 +132,7 @@ static int ap806_syscon_common_probe(struct platform_device *pdev, } /* SDIO(/eMMC) Clock is fixed clock divided by 3 */ - name = ap806_unique_name(dev, syscon_node, "sdio"); + name = ap_cp_unique_name(dev, syscon_node, "sdio"); ap806_clks[4] = clk_register_fixed_factor(NULL, name, fixedclk_name, 0, 1, 3); diff --git a/drivers/clk/mvebu/armada_ap_cp_helper.c b/drivers/clk/mvebu/armada_ap_cp_helper.c new file mode 100644 index 000000000000..6a930f697ee5 --- /dev/null +++ b/drivers/clk/mvebu/armada_ap_cp_helper.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Marvell Armada AP and CP110 helper + * + * Copyright (C) 2018 Marvell + * + * Gregory Clement <gregory.clement@bootlin.com> + * + */ + +#include "armada_ap_cp_helper.h" +#include <linux/device.h> +#include <linux/of.h> +#include <linux/of_address.h> + +char *ap_cp_unique_name(struct device *dev, struct device_node *np, + const char *name) +{ + const __be32 *reg; + u64 addr; + + /* Do not create a name if there is no clock */ + if (!name) + return NULL; + + reg = of_get_property(np, "reg", NULL); + addr = of_translate_address(np, reg); + return devm_kasprintf(dev, GFP_KERNEL, "%llx-%s", + (unsigned long long)addr, name); +} diff --git a/drivers/clk/mvebu/armada_ap_cp_helper.h b/drivers/clk/mvebu/armada_ap_cp_helper.h new file mode 100644 index 000000000000..810af1e5dfa4 --- /dev/null +++ b/drivers/clk/mvebu/armada_ap_cp_helper.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __ARMADA_AP_CP_HELPER_H +#define __ARMADA_AP_CP_HELPER_H + +struct device; +struct device_node; + +char *ap_cp_unique_name(struct device *dev, struct device_node *np, + const char *name); +#endif diff --git a/drivers/clk/mvebu/cp110-system-controller.c b/drivers/clk/mvebu/cp110-system-controller.c index 9781b1bf5998..e5f6c4b114b0 100644 --- a/drivers/clk/mvebu/cp110-system-controller.c +++ b/drivers/clk/mvebu/cp110-system-controller.c @@ -26,11 +26,11 @@ #define pr_fmt(fmt) "cp110-system-controller: " fmt +#include "armada_ap_cp_helper.h" #include <linux/clk-provider.h> #include <linux/mfd/syscon.h> #include <linux/init.h> #include <linux/of.h> -#include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/slab.h> @@ -212,22 +212,6 @@ static struct clk_hw *cp110_of_clk_get(struct of_phandle_args *clkspec, return ERR_PTR(-EINVAL); } -static char *cp110_unique_name(struct device *dev, struct device_node *np, - const char *name) -{ - const __be32 *reg; - u64 addr; - - /* Do not create a name if there is no clock */ - if (!name) - return NULL; - - reg = of_get_property(np, "reg", NULL); - addr = of_translate_address(np, reg); - return devm_kasprintf(dev, GFP_KERNEL, "%llx-%s", - (unsigned long long)addr, name); -} - static int cp110_syscon_common_probe(struct platform_device *pdev, struct device_node *syscon_node) { @@ -261,7 +245,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, cp110_clk_data->num = CP110_CLK_NUM; /* Register the PLL0 which is the root of the hw tree */ - pll0_name = cp110_unique_name(dev, syscon_node, "pll0"); + pll0_name = ap_cp_unique_name(dev, syscon_node, "pll0"); hw = clk_hw_register_fixed_rate(NULL, pll0_name, NULL, 0, 1000 * 1000 * 1000); if (IS_ERR(hw)) { @@ -272,7 +256,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, cp110_clks[CP110_CORE_PLL0] = hw; /* PPv2 is PLL0/3 */ - ppv2_name = cp110_unique_name(dev, syscon_node, "ppv2-core"); + ppv2_name = ap_cp_unique_name(dev, syscon_node, "ppv2-core"); hw = clk_hw_register_fixed_factor(NULL, ppv2_name, pll0_name, 0, 1, 3); if (IS_ERR(hw)) { ret = PTR_ERR(hw); @@ -282,7 +266,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, cp110_clks[CP110_CORE_PPV2] = hw; /* X2CORE clock is PLL0/2 */ - x2core_name = cp110_unique_name(dev, syscon_node, "x2core"); + x2core_name = ap_cp_unique_name(dev, syscon_node, "x2core"); hw = clk_hw_register_fixed_factor(NULL, x2core_name, pll0_name, 0, 1, 2); if (IS_ERR(hw)) { @@ -293,7 +277,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, cp110_clks[CP110_CORE_X2CORE] = hw; /* Core clock is X2CORE/2 */ - core_name = cp110_unique_name(dev, syscon_node, "core"); + core_name = ap_cp_unique_name(dev, syscon_node, "core"); hw = clk_hw_register_fixed_factor(NULL, core_name, x2core_name, 0, 1, 2); if (IS_ERR(hw)) { @@ -303,7 +287,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, cp110_clks[CP110_CORE_CORE] = hw; /* NAND can be either PLL0/2.5 or core clock */ - nand_name = cp110_unique_name(dev, syscon_node, "nand-core"); + nand_name = ap_cp_unique_name(dev, syscon_node, "nand-core"); if (nand_clk_ctrl & NF_CLOCK_SEL_400_MASK) hw = clk_hw_register_fixed_factor(NULL, nand_name, pll0_name, 0, 2, 5); @@ -318,7 +302,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, cp110_clks[CP110_CORE_NAND] = hw; /* SDIO clock is PLL0/2.5 */ - sdio_name = cp110_unique_name(dev, syscon_node, "sdio-core"); + sdio_name = ap_cp_unique_name(dev, syscon_node, "sdio-core"); hw = clk_hw_register_fixed_factor(NULL, sdio_name, pll0_name, 0, 2, 5); if (IS_ERR(hw)) { @@ -330,7 +314,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev, /* create the unique name for all the gate clocks */ for (i = 0; i < ARRAY_SIZE(gate_base_names); i++) - gate_name[i] = cp110_unique_name(dev, syscon_node, + gate_name[i] = ap_cp_unique_name(dev, syscon_node, gate_base_names[i]); for (i = 0; i < ARRAY_SIZE(gate_base_names); i++) {

[v3,2/6] clk: mvebu: add helper file for Armada AP and CP clocks

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