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author | Olof Johansson <olof@lixom.net> | 2012-11-30 07:49:30 +0100 |
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committer | Olof Johansson <olof@lixom.net> | 2012-11-30 07:49:30 +0100 |
commit | 9121dfca73d81fa886f15610cac2bf372391f3eb (patch) | |
tree | 9aff09bb821f632ea6b7a1117c094d662eb2ecd3 /arch/arm/mach-omap2/prm44xx.c | |
parent | Merge branch 'next/dt' into next/pm2 (diff) | |
parent | Merge tag 'omap-devel-a-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel... (diff) | |
download | linux-9121dfca73d81fa886f15610cac2bf372391f3eb.tar.xz linux-9121dfca73d81fa886f15610cac2bf372391f3eb.zip |
Merge tag 'omap-for-v3.8/devel-prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm2
From Tony Lindgren:
omap prcm changes via Paul Walmsley <paul@pwsan.com>:
Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.
Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0a04862a678f7823215424b4e5501f9 are here:
http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
which indicate that the series tests cleanly.
* tag 'omap-for-v3.8/devel-prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (49 commits)
ARM: OMAP2+: omap_device: Correct resource handling for DT boot
ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
ARM: OMAP2+: PRM: initialize some PRM functions early
ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP2xxx: clock: drop obsolete clock data
ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
ARM: AM33xx: clock: drop obsolete clock data
ARM: OMAP3xxx: clk: drop obsolete clock data
ARM: OMAP3: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP44xx: clock: drop obsolete clock data
ARM: OMAP4: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP: hwmod: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP: clock: Switch to COMMON clk
ARM: OMAP2: clock: Add 24xx data using common struct clk
ARM: OMAP3: clock: Add 3xxx data using common struct clk
ARM: AM33XX: clock: add clock data in common clock format
ARM: OMAP4: clock: Add 44xx data using common struct clk
ARM: OMAP2+: clock: add OMAP CCF convenience macros to mach-omap2/clock.h
...
Some context conflicts due to nearby changes resolved in
arch/arm/mach-omap2/io.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-omap2/prm44xx.c')
-rw-r--r-- | arch/arm/mach-omap2/prm44xx.c | 49 |
1 files changed, 42 insertions, 7 deletions
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index 6d3467af205d..7498bc77fe8b 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -346,6 +346,37 @@ static u32 omap44xx_prm_read_reset_sources(void) return r; } +/** + * omap44xx_prm_was_any_context_lost_old - was module hardware context lost? + * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION) + * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST) + * @idx: CONTEXT register offset + * + * Return 1 if any bits were set in the *_CONTEXT_* register + * identified by (@part, @inst, @idx), which means that some context + * was lost for that module; otherwise, return 0. + */ +static bool omap44xx_prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx) +{ + return (omap4_prminst_read_inst_reg(part, inst, idx)) ? 1 : 0; +} + +/** + * omap44xx_prm_clear_context_lost_flags_old - clear context loss flags + * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION) + * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST) + * @idx: CONTEXT register offset + * + * Clear hardware context loss bits for the module identified by + * (@part, @inst, @idx). No return value. XXX Writes to reserved bits; + * is there a way to avoid this? + */ +static void omap44xx_prm_clear_context_loss_flags_old(u8 part, s16 inst, + u16 idx) +{ + omap4_prminst_write_inst_reg(0xffffffff, part, inst, idx); +} + /* Powerdomain low-level functions */ static int omap4_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) @@ -613,24 +644,28 @@ struct pwrdm_ops omap4_pwrdm_operations = { */ static struct prm_ll_data omap44xx_prm_ll_data = { .read_reset_sources = &omap44xx_prm_read_reset_sources, + .was_any_context_lost_old = &omap44xx_prm_was_any_context_lost_old, + .clear_context_loss_flags_old = &omap44xx_prm_clear_context_loss_flags_old, }; -static int __init omap44xx_prm_init(void) +int __init omap44xx_prm_init(void) { - int ret; - if (!cpu_is_omap44xx()) return 0; - ret = prm_register(&omap44xx_prm_ll_data); - if (ret) - return ret; + return prm_register(&omap44xx_prm_ll_data); +} + +static int __init omap44xx_prm_late_init(void) +{ + if (!cpu_is_omap44xx()) + return 0; omap44xx_prm_enable_io_wakeup(); return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup); } -subsys_initcall(omap44xx_prm_init); +subsys_initcall(omap44xx_prm_late_init); static void __exit omap44xx_prm_exit(void) { |