From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Tue, 8 Dec 2015 14:32:01 +0000 Subject: [PATCH v5 08/11] ARM: STi: Register CPUFreq device In-Reply-To: <1449585124-15596-1-git-send-email-lee.jones@linaro.org> References: <1449585124-15596-1-git-send-email-lee.jones@linaro.org> Message-ID: <1449585124-15596-9-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org DT will not allow pseudo-devices. Only devices which represent real hardware are permitted. So we have to register the CPUFreq driver from platform code instead. Rather than create a new file, we're bundling this in with the SMP functionality and renaming it from 'smp' to the more generic 'cpu'. Signed-off-by: Lee Jones --- arch/arm/mach-sti/Makefile | 2 +- arch/arm/mach-sti/board-dt.c | 3 ++- arch/arm/mach-sti/{platsmp.c => cpu.c} | 17 +++++++++++++++-- arch/arm/mach-sti/{smp.h => cpu.h} | 1 + 4 files changed, 19 insertions(+), 4 deletions(-) rename arch/arm/mach-sti/{platsmp.c => cpu.c} (93%) rename arch/arm/mach-sti/{smp.h => cpu.h} (93%) diff --git a/arch/arm/mach-sti/Makefile b/arch/arm/mach-sti/Makefile index acb3309..caaeeaa 100644 --- a/arch/arm/mach-sti/Makefile +++ b/arch/arm/mach-sti/Makefile @@ -1,2 +1,2 @@ -obj-$(CONFIG_SMP) += platsmp.o headsmp.o +obj-$(CONFIG_SMP) += cpu.o headsmp.o obj-$(CONFIG_ARCH_STI) += board-dt.o diff --git a/arch/arm/mach-sti/board-dt.c b/arch/arm/mach-sti/board-dt.c index ae10fb2..60b23a7 100644 --- a/arch/arm/mach-sti/board-dt.c +++ b/arch/arm/mach-sti/board-dt.c @@ -12,7 +12,7 @@ #include #include -#include "smp.h" +#include "cpu.h" static const char *const stih41x_dt_match[] __initconst = { "st,stih415", @@ -31,4 +31,5 @@ DT_MACHINE_START(STM, "STiH415/416 SoC with Flattened Device Tree") L2C_AUX_CTRL_WAY_SIZE(4), .l2c_aux_mask = 0xc0000fff, .smp = smp_ops(sti_smp_ops), + .init_late = init_cpufreq, MACHINE_END diff --git a/arch/arm/mach-sti/platsmp.c b/arch/arm/mach-sti/cpu.c similarity index 93% rename from arch/arm/mach-sti/platsmp.c rename to arch/arm/mach-sti/cpu.c index c4ad6ea..335ecaf 100644 --- a/arch/arm/mach-sti/platsmp.c +++ b/arch/arm/mach-sti/cpu.c @@ -1,5 +1,5 @@ /* - * arch/arm/mach-sti/platsmp.c + * arch/arm/mach-sti/cpu.c * * Copyright (C) 2013 STMicroelectronics (R&D) Limited. * http://www.st.com @@ -13,6 +13,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ + #include #include #include @@ -21,13 +22,17 @@ #include #include #include +#include #include #include #include -#include "smp.h" +#include "cpu.h" +/** + * SMP Operations + */ static void write_pen_release(int val) { pen_release = val; @@ -161,3 +166,11 @@ struct smp_operations __initdata sti_smp_ops = { .smp_secondary_init = sti_secondary_init, .smp_boot_secondary = sti_boot_secondary, }; + +/** + * CPUFreq Registration + */ +void init_cpufreq(void) +{ + platform_device_register_simple("sti-cpufreq", -1, NULL, 0); +} diff --git a/arch/arm/mach-sti/smp.h b/arch/arm/mach-sti/cpu.h similarity index 93% rename from arch/arm/mach-sti/smp.h rename to arch/arm/mach-sti/cpu.h index ae22707..957c4d1 100644 --- a/arch/arm/mach-sti/smp.h +++ b/arch/arm/mach-sti/cpu.h @@ -15,5 +15,6 @@ extern struct smp_operations sti_smp_ops; void sti_secondary_startup(void); +extern void init_cpufreq(void); #endif -- 1.9.1