From: fu.wei@linaro.org To: rjw@rjwysocki.net, lenb@kernel.org, daniel.lezcano@linaro.org, tglx@linutronix.de, marc.zyngier@arm.com, mark.rutland@arm.com, lorenzo.pieralisi@arm.com, sudeep.holla@arm.com, hanjun.guo@linaro.org Cc: linux-arm-kernel@lists.infradead.org, linaro-acpi@lists.linaro.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, rruigrok@codeaurora.org, harba@codeaurora.org, cov@codeaurora.org, timur@codeaurora.org, graeme.gregory@linaro.org, al.stone@linaro.org, jcm@redhat.com, wei@redhat.com, arnd@arndb.de, catalin.marinas@arm.com, will.deacon@arm.com, Suravee.Suthikulpanit@amd.com, leo.duran@amd.com, wim@iguana.be, linux@roeck-us.net, linux-watchdog@vger.kernel.org, tn@semihalf.com, christoffer.dall@linaro.org, julien.grall@arm.com, Fu Wei <fu.wei@linaro.org> Subject: [PATCH v23 01/11] clocksource: arm_arch_timer: add MMIO CNTFRQ helper Date: Sat, 1 Apr 2017 01:50:55 +0800 [thread overview] Message-ID: <20170331175105.8370-2-fu.wei@linaro.org> (raw) In-Reply-To: <20170331175105.8370-1-fu.wei@linaro.org> From: Fu Wei <fu.wei@linaro.org> We currently open-code the readl() for the MMIO time frequency. To avoid duplicating the logic with future rework, this patch adds a helepr to read the MMIO timer frequency, mirroring what we have for the sysreg timer frequency. Signed-off-by: Fu Wei <fu.wei@linaro.org> [Mark: reword commit message] Signed-off-by: Mark Rutland <mark.rutland@arm.com> --- drivers/clocksource/arm_arch_timer.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 3faed19..843f923 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -555,6 +555,11 @@ static int arch_timer_starting_cpu(unsigned int cpu) return 0; } +static u32 arch_timer_mem_get_cntfrq(void __iomem *cntbase) +{ + return readl_relaxed(cntbase + CNTFRQ); +} + static void arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np) { @@ -569,7 +574,7 @@ arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np) if (!acpi_disabled || of_property_read_u32(np, "clock-frequency", &arch_timer_rate)) { if (cntbase) - arch_timer_rate = readl_relaxed(cntbase + CNTFRQ); + arch_timer_rate = arch_timer_mem_get_cntfrq(cntbase); else arch_timer_rate = arch_timer_get_cntfrq(); } -- 2.9.3
WARNING: multiple messages have this Message-ID (diff)
From: fu.wei@linaro.org (fu.wei at linaro.org) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v23 01/11] clocksource: arm_arch_timer: add MMIO CNTFRQ helper Date: Sat, 1 Apr 2017 01:50:55 +0800 [thread overview] Message-ID: <20170331175105.8370-2-fu.wei@linaro.org> (raw) In-Reply-To: <20170331175105.8370-1-fu.wei@linaro.org> From: Fu Wei <fu.wei@linaro.org> We currently open-code the readl() for the MMIO time frequency. To avoid duplicating the logic with future rework, this patch adds a helepr to read the MMIO timer frequency, mirroring what we have for the sysreg timer frequency. Signed-off-by: Fu Wei <fu.wei@linaro.org> [Mark: reword commit message] Signed-off-by: Mark Rutland <mark.rutland@arm.com> --- drivers/clocksource/arm_arch_timer.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 3faed19..843f923 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -555,6 +555,11 @@ static int arch_timer_starting_cpu(unsigned int cpu) return 0; } +static u32 arch_timer_mem_get_cntfrq(void __iomem *cntbase) +{ + return readl_relaxed(cntbase + CNTFRQ); +} + static void arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np) { @@ -569,7 +574,7 @@ arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np) if (!acpi_disabled || of_property_read_u32(np, "clock-frequency", &arch_timer_rate)) { if (cntbase) - arch_timer_rate = readl_relaxed(cntbase + CNTFRQ); + arch_timer_rate = arch_timer_mem_get_cntfrq(cntbase); else arch_timer_rate = arch_timer_get_cntfrq(); } -- 2.9.3
next prev parent reply other threads:[~2017-03-31 17:50 UTC|newest] Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-03-31 17:50 [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer fu.wei 2017-03-31 17:50 ` fu.wei at linaro.org 2017-03-31 17:50 ` fu.wei [this message] 2017-03-31 17:50 ` [PATCH v23 01/11] clocksource: arm_arch_timer: add MMIO CNTFRQ helper fu.wei at linaro.org 2017-03-31 17:50 ` [PATCH v23 02/11] clocksource: arm_arch_timer: split dt-only rate handling fu.wei 2017-03-31 17:50 ` fu.wei at linaro.org 2017-03-31 17:50 ` [PATCH v23 03/11] clocksource: arm_arch_timer: refactor arch_timer_needs_probing fu.wei 2017-03-31 17:50 ` fu.wei at linaro.org 2017-03-31 17:50 ` [PATCH v23 04/11] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call fu.wei 2017-03-31 17:50 ` fu.wei at linaro.org 2017-03-31 17:50 ` [PATCH v23 05/11] clocksource: arm_arch_timer: add structs to describe MMIO timer fu.wei 2017-03-31 17:50 ` fu.wei at linaro.org 2017-03-31 17:51 ` [PATCH v23 06/11] clocksource: arm_arch_timer: refactor MMIO timer probing fu.wei 2017-03-31 17:51 ` fu.wei at linaro.org 2017-04-05 18:42 ` Mark Rutland 2017-04-05 18:42 ` Mark Rutland 2017-04-06 10:45 ` Fu Wei 2017-04-06 10:45 ` Fu Wei 2017-04-06 10:45 ` Fu Wei 2017-03-31 17:51 ` [PATCH v23 07/11] acpi/arm64: Add GTDT table parse driver fu.wei 2017-03-31 17:51 ` fu.wei at linaro.org 2017-03-31 17:51 ` [PATCH v23 08/11] clocksource: arm_arch_timer: simplify ACPI support code fu.wei 2017-03-31 17:51 ` fu.wei at linaro.org 2017-03-31 17:51 ` [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver fu.wei 2017-03-31 17:51 ` fu.wei at linaro.org 2017-04-03 9:49 ` Will Deacon 2017-04-03 9:49 ` Will Deacon [not found] ` <20170331175105.8370-10-fu.wei-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2017-04-03 10:45 ` Lorenzo Pieralisi 2017-04-03 10:45 ` Lorenzo Pieralisi 2017-04-03 10:45 ` Lorenzo Pieralisi 2017-04-06 17:11 ` Fu Wei 2017-04-06 17:11 ` Fu Wei 2017-04-06 17:11 ` Fu Wei 2017-04-05 18:38 ` Mark Rutland 2017-04-05 18:38 ` Mark Rutland 2017-04-05 18:38 ` Mark Rutland 2017-04-06 10:07 ` Mark Rutland 2017-04-06 10:07 ` Mark Rutland 2017-04-06 16:47 ` Fu Wei 2017-04-06 16:47 ` Fu Wei 2017-04-06 16:47 ` Fu Wei [not found] ` <CADyBb7sz6ongbyqR0FzBZybJBYwnLvqV+NsX1+W=6tv0_vLt1g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2017-04-06 17:24 ` Mark Rutland 2017-04-06 17:24 ` Mark Rutland 2017-04-06 17:24 ` Mark Rutland 2017-04-06 17:39 ` Fu Wei 2017-04-06 17:39 ` Fu Wei 2017-04-06 17:39 ` Fu Wei 2017-04-06 17:52 ` Mark Rutland 2017-04-06 17:52 ` Mark Rutland 2017-04-06 17:52 ` Mark Rutland 2017-04-06 18:07 ` Fu Wei 2017-04-06 18:07 ` Fu Wei 2017-04-06 18:07 ` Fu Wei 2017-03-31 17:51 ` [PATCH v23 10/11] clocksource: arm_arch_timer: add GTDT support for memory-mapped timer fu.wei 2017-03-31 17:51 ` fu.wei at linaro.org 2017-03-31 17:51 ` [PATCH v23 11/11] acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver fu.wei 2017-03-31 17:51 ` fu.wei at linaro.org 2017-03-31 17:51 ` fu.wei 2017-04-01 2:14 ` [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer Xiongfeng Wang 2017-04-01 2:14 ` Xiongfeng Wang 2017-04-01 2:14 ` Xiongfeng Wang [not found] ` <8c017a47-02d5-454d-f42c-a1b5bb29df1b-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> 2017-04-01 3:49 ` Fu Wei 2017-04-01 3:49 ` Fu Wei 2017-04-01 3:49 ` Fu Wei 2017-04-04 20:39 ` Timur Tabi 2017-04-04 20:39 ` Timur Tabi
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