From d9b77361c1a5155e3d803d4ce9d7010269d301d3 Mon Sep 17 00:00:00 2001 From: Akshu Agrawal Date: Fri, 31 Jul 2020 19:06:02 +0530 Subject: clk: x86: Change name from ST to FCH AMD SoC general pupose clk is present in new platforms with minor differences. We can reuse the same clk driver for other platforms. Hence, changing name from ST(SoC) to FCH(IP) Signed-off-by: Akshu Agrawal Reviewed-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki --- drivers/clk/x86/Makefile | 2 +- drivers/clk/x86/clk-fch.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++ drivers/clk/x86/clk-st.c | 78 ----------------------------------------------- 3 files changed, 79 insertions(+), 79 deletions(-) create mode 100644 drivers/clk/x86/clk-fch.c delete mode 100644 drivers/clk/x86/clk-st.c (limited to 'drivers/clk') diff --git a/drivers/clk/x86/Makefile b/drivers/clk/x86/Makefile index 7c774ea7ddeb..18564efdc651 100644 --- a/drivers/clk/x86/Makefile +++ b/drivers/clk/x86/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_PMC_ATOM) += clk-pmc-atom.o -obj-$(CONFIG_X86_AMD_PLATFORM_DEVICE) += clk-st.o +obj-$(CONFIG_X86_AMD_PLATFORM_DEVICE) += clk-fch.o clk-x86-lpss-objs := clk-lpt.o obj-$(CONFIG_X86_INTEL_LPSS) += clk-x86-lpss.o obj-$(CONFIG_CLK_LGM_CGU) += clk-cgu.o clk-cgu-pll.o clk-lgm.o diff --git a/drivers/clk/x86/clk-fch.c b/drivers/clk/x86/clk-fch.c new file mode 100644 index 000000000000..b252f0cf0628 --- /dev/null +++ b/drivers/clk/x86/clk-fch.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: MIT +/* + * clock framework for AMD Stoney based clocks + * + * Copyright 2018 Advanced Micro Devices, Inc. + */ + +#include +#include +#include +#include +#include + +/* Clock Driving Strength 2 register */ +#define CLKDRVSTR2 0x28 +/* Clock Control 1 register */ +#define MISCCLKCNTL1 0x40 +/* Auxiliary clock1 enable bit */ +#define OSCCLKENB 2 +/* 25Mhz auxiliary output clock freq bit */ +#define OSCOUT1CLK25MHZ 16 + +#define ST_CLK_48M 0 +#define ST_CLK_25M 1 +#define ST_CLK_MUX 2 +#define ST_CLK_GATE 3 +#define ST_MAX_CLKS 4 + +static const char * const clk_oscout1_parents[] = { "clk48MHz", "clk25MHz" }; +static struct clk_hw *hws[ST_MAX_CLKS]; + +static int fch_clk_probe(struct platform_device *pdev) +{ + struct fch_clk_data *fch_data; + + fch_data = dev_get_platdata(&pdev->dev); + if (!fch_data || !fch_data->base) + return -EINVAL; + + hws[ST_CLK_48M] = clk_hw_register_fixed_rate(NULL, "clk48MHz", NULL, 0, + 48000000); + hws[ST_CLK_25M] = clk_hw_register_fixed_rate(NULL, "clk25MHz", NULL, 0, + 25000000); + + hws[ST_CLK_MUX] = clk_hw_register_mux(NULL, "oscout1_mux", + clk_oscout1_parents, ARRAY_SIZE(clk_oscout1_parents), + 0, fch_data->base + CLKDRVSTR2, OSCOUT1CLK25MHZ, 3, 0, NULL); + + clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_48M]->clk); + + hws[ST_CLK_GATE] = clk_hw_register_gate(NULL, "oscout1", "oscout1_mux", + 0, fch_data->base + MISCCLKCNTL1, OSCCLKENB, + CLK_GATE_SET_TO_DISABLE, NULL); + + devm_clk_hw_register_clkdev(&pdev->dev, hws[ST_CLK_GATE], "oscout1", + NULL); + + return 0; +} + +static int fch_clk_remove(struct platform_device *pdev) +{ + int i; + + for (i = 0; i < ST_MAX_CLKS; i++) + clk_hw_unregister(hws[i]); + return 0; +} + +static struct platform_driver fch_clk_driver = { + .driver = { + .name = "clk-fch", + .suppress_bind_attrs = true, + }, + .probe = fch_clk_probe, + .remove = fch_clk_remove, +}; +builtin_platform_driver(fch_clk_driver); diff --git a/drivers/clk/x86/clk-st.c b/drivers/clk/x86/clk-st.c deleted file mode 100644 index c2438874d9f2..000000000000 --- a/drivers/clk/x86/clk-st.c +++ /dev/null @@ -1,78 +0,0 @@ -// SPDX-License-Identifier: MIT -/* - * clock framework for AMD Stoney based clocks - * - * Copyright 2018 Advanced Micro Devices, Inc. - */ - -#include -#include -#include -#include -#include - -/* Clock Driving Strength 2 register */ -#define CLKDRVSTR2 0x28 -/* Clock Control 1 register */ -#define MISCCLKCNTL1 0x40 -/* Auxiliary clock1 enable bit */ -#define OSCCLKENB 2 -/* 25Mhz auxiliary output clock freq bit */ -#define OSCOUT1CLK25MHZ 16 - -#define ST_CLK_48M 0 -#define ST_CLK_25M 1 -#define ST_CLK_MUX 2 -#define ST_CLK_GATE 3 -#define ST_MAX_CLKS 4 - -static const char * const clk_oscout1_parents[] = { "clk48MHz", "clk25MHz" }; -static struct clk_hw *hws[ST_MAX_CLKS]; - -static int st_clk_probe(struct platform_device *pdev) -{ - struct fch_clk_data *st_data; - - st_data = dev_get_platdata(&pdev->dev); - if (!st_data || !st_data->base) - return -EINVAL; - - hws[ST_CLK_48M] = clk_hw_register_fixed_rate(NULL, "clk48MHz", NULL, 0, - 48000000); - hws[ST_CLK_25M] = clk_hw_register_fixed_rate(NULL, "clk25MHz", NULL, 0, - 25000000); - - hws[ST_CLK_MUX] = clk_hw_register_mux(NULL, "oscout1_mux", - clk_oscout1_parents, ARRAY_SIZE(clk_oscout1_parents), - 0, st_data->base + CLKDRVSTR2, OSCOUT1CLK25MHZ, 3, 0, NULL); - - clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_48M]->clk); - - hws[ST_CLK_GATE] = clk_hw_register_gate(NULL, "oscout1", "oscout1_mux", - 0, st_data->base + MISCCLKCNTL1, OSCCLKENB, - CLK_GATE_SET_TO_DISABLE, NULL); - - devm_clk_hw_register_clkdev(&pdev->dev, hws[ST_CLK_GATE], "oscout1", - NULL); - - return 0; -} - -static int st_clk_remove(struct platform_device *pdev) -{ - int i; - - for (i = 0; i < ST_MAX_CLKS; i++) - clk_hw_unregister(hws[i]); - return 0; -} - -static struct platform_driver st_clk_driver = { - .driver = { - .name = "clk-st", - .suppress_bind_attrs = true, - }, - .probe = st_clk_probe, - .remove = st_clk_remove, -}; -builtin_platform_driver(st_clk_driver); -- cgit v1.2.3