diff options
author | Olof Johansson <olof@lixom.net> | 2013-10-07 09:47:31 -0700 |
---|---|---|
committer | Olof Johansson <olof@lixom.net> | 2013-10-07 09:47:31 -0700 |
commit | c884357ec6e27c7967c78fb111cc8a830881f43b (patch) | |
tree | 2754220c4b8bcec3fda1f25153af2f472e00f4ef /arch/arm/mach-tegra | |
parent | ec01791d0ff7593fbca21a93167138a49bb94768 (diff) | |
parent | 64cc69abbb32e17aa44d2c696eca65cb6f9364ca (diff) |
Merge branch 'clk-of-init-v2_for-3.13' of https://github.com/shesselba/linux-dove into next/cleanup
From Sebastian Hasselbarth:
This is a patch set based on an RFC [1][2] sent earlier to provide
a common arch/arm init for DT clock providers. Currently, the call to
of_clk_init(NULL) to initialize DT clock providers is spread among several
mach-dirs. Since most machs require DT clocks initialized before timers,
no initcall can be used.
By adding of_clk_init(NULL) to arch/arm time_init(), we can remove all
mach-specific .init_time hooks that basically called of_clk_init and
clocksource_of_init.
In contrast to the RFC version, of_clk_init(NULL) is now only called if
no custom .init_time callback is set. This allows some machs to still
call clock init themselves, as not all can be converted now. Therefore,
this patch sets drops conversion of mach-mvebu and mach-zynq. New machs
that were introduced with v3.12-rc1 are also converted, except mach-u300
that requires clocks before irqs.
* 'clk-of-init-v2_for-3.13' of https://github.com/shesselba/linux-dove: (29 commits)
ARM: vt8500: remove custom .init_time hook
ARM: vexpress: remove custom .init_time hook
ARM: tegra: remove custom .init_time hook
ARM: sunxi: remove custom .init_time hook
ARM: sti: remove custom .init_time hook
ARM: socfpga: remove custom .init_time hook
ARM: rockchip: remove custom .init_time hook
ARM: prima2: remove custom .init_time hook
ARM: nspire: remove custom .init_time hook
ARM: nomadik: remove custom .init_time hook
ARM: mxs: remove custom .init_time hook
ARM: kirkwood: remove custom .init_time hook
ARM: imx: remove custom .init_time hook
ARM: highbank: remove custom .init_time hook
ARM: exynos: remove custom .init_time hook
ARM: dove: remove custom .init_time hook
ARM: bcm2835: remove custom .init_time hook
ARM: bcm: provide common arch init for DT clocks
ARM: call of_clk_init from default time_init handler
ARM: vt8500: prepare for arch-wide .init_time callback
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-tegra')
-rw-r--r-- | arch/arm/mach-tegra/common.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-tegra/pmc.c | 41 | ||||
-rw-r--r-- | arch/arm/mach-tegra/pmc.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-tegra/tegra.c | 5 |
4 files changed, 27 insertions, 24 deletions
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 94a119a35af..58dc91c56cc 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -24,7 +24,6 @@ #include <linux/delay.h> #include <linux/reboot.h> #include <linux/irqchip.h> -#include <linux/clk-provider.h> #include <asm/hardware/cache-l2x0.h> @@ -61,8 +60,7 @@ u32 tegra_uart_config[4] = { #ifdef CONFIG_OF void __init tegra_dt_init_irq(void) { - of_clk_init(NULL); - tegra_pmc_init(); + tegra_pmc_init_irq(); tegra_init_irq(); irqchip_init(); tegra_legacy_irq_syscore_init(); diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c index 8acb881f7cf..7916ff91f96 100644 --- a/arch/arm/mach-tegra/pmc.c +++ b/arch/arm/mach-tegra/pmc.c @@ -285,13 +285,10 @@ static const struct of_device_id matches[] __initconst = { { } }; -static void __init tegra_pmc_parse_dt(void) +void __init tegra_pmc_init_irq(void) { struct device_node *np; - u32 prop; - enum tegra_suspend_mode suspend_mode; - u32 core_good_time[2] = {0, 0}; - u32 lp0_vec[2] = {0, 0}; + u32 val; np = of_find_matching_node(NULL, matches); BUG_ON(!np); @@ -300,6 +297,26 @@ static void __init tegra_pmc_parse_dt(void) tegra_pmc_invert_interrupt = of_property_read_bool(np, "nvidia,invert-interrupt"); + + val = tegra_pmc_readl(PMC_CTRL); + if (tegra_pmc_invert_interrupt) + val |= PMC_CTRL_INTR_LOW; + else + val &= ~PMC_CTRL_INTR_LOW; + tegra_pmc_writel(val, PMC_CTRL); +} + +void __init tegra_pmc_init(void) +{ + struct device_node *np; + u32 prop; + enum tegra_suspend_mode suspend_mode; + u32 core_good_time[2] = {0, 0}; + u32 lp0_vec[2] = {0, 0}; + + np = of_find_matching_node(NULL, matches); + BUG_ON(!np); + tegra_pclk = of_clk_get_by_name(np, "pclk"); WARN_ON(IS_ERR(tegra_pclk)); @@ -365,17 +382,3 @@ static void __init tegra_pmc_parse_dt(void) pmc_pm_data.suspend_mode = suspend_mode; } - -void __init tegra_pmc_init(void) -{ - u32 val; - - tegra_pmc_parse_dt(); - - val = tegra_pmc_readl(PMC_CTRL); - if (tegra_pmc_invert_interrupt) - val |= PMC_CTRL_INTR_LOW; - else - val &= ~PMC_CTRL_INTR_LOW; - tegra_pmc_writel(val, PMC_CTRL); -} diff --git a/arch/arm/mach-tegra/pmc.h b/arch/arm/mach-tegra/pmc.h index 549f8c7b762..4d5f8f32225 100644 --- a/arch/arm/mach-tegra/pmc.h +++ b/arch/arm/mach-tegra/pmc.h @@ -39,6 +39,7 @@ bool tegra_pmc_cpu_is_powered(int cpuid); int tegra_pmc_cpu_power_on(int cpuid); int tegra_pmc_cpu_remove_clamping(int cpuid); +void tegra_pmc_init_irq(void); void tegra_pmc_init(void); #endif diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c index 5b8605547a0..2e219280783 100644 --- a/arch/arm/mach-tegra/tegra.c +++ b/arch/arm/mach-tegra/tegra.c @@ -16,7 +16,6 @@ * */ -#include <linux/clocksource.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> @@ -44,6 +43,7 @@ #include "common.h" #include "fuse.h" #include "iomap.h" +#include "pmc.h" static void __init tegra_dt_init(void) { @@ -51,6 +51,8 @@ static void __init tegra_dt_init(void) struct soc_device *soc_dev; struct device *parent = NULL; + tegra_pmc_init(); + tegra_clocks_apply_init_table(); soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); @@ -119,7 +121,6 @@ DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)") .smp = smp_ops(tegra_smp_ops), .init_early = tegra_init_early, .init_irq = tegra_dt_init_irq, - .init_time = clocksource_of_init, .init_machine = tegra_dt_init, .init_late = tegra_dt_init_late, .restart = tegra_assert_system_reset, |