On Tue, Oct 15, 2013 at 07:48:57PM +0200, Stephen Warren wrote:
> On 10/15/2013 08:52 AM, Peter De Schrijver wrote:
> > This patchset introduces common infrastructure for clocks which exist in    
> >                                                                             
> >        
> > several Tegra SoCs. We also also move Tegra20, Tegra30 and Tegra114 to
> > this new infrastructure.
> 
> I took my local branch based on next-20131014, and applied the following:
> 
> * Joseph's "ARM: tegra: add clock properties for devices of Tegra124".
> 
> * The patches from your "pull request for tegra clocks" of today (I just
> cherry-picked the commits rather than merging the pull request).
> 
> * Your patch series "Introduce common infra for tegra clocks" of today.
> 
> * Your patch series "Tegra124 clock support" of today.
> 
> The resultant branch is at:
> git://github.com:swarren/linux-tegra.git linux-next_common
> 
> When building, I see a number of section mismatches:
> 
> > WARNING: drivers/clk/tegra/built-in.o(.text+0x534): Section mismatch in 
> > reference from the function _tegra_clk_register_periph() to the function 
> > .init.text:get_reg_bank()
> > The function _tegra_clk_register_periph() references
> > the function __init get_reg_bank().
> > This is often because _tegra_clk_register_periph lacks a __init 
> > annotation or the annotation of get_reg_bank is wrong.
> > 
> > WARNING: drivers/clk/tegra/built-in.o(.text+0x9ec): Section mismatch in 
> > reference from the function tegra_clk_register_periph_gate() to the 
> > function .init.text:get_reg_bank()
> > The function tegra_clk_register_periph_gate() references
> > the function __init get_reg_bank().
> > This is often because tegra_clk_register_periph_gate lacks a __init 
> > annotation or the annotation of get_reg_bank is wrong.
> 
> There are more, but they refer to references from the same two
> functions. You may need to add CONFIG_DEBUG_SECTION_MISMATCH=y to
> .config to see these; I can't remember if that's included in
> tegra_defconfig.
> 
> Testing on Venice2 (Tegra124): I see the following WARN during boot,
> which I think is new relative to the internal branch you gave me yesterday:
> 
> > [    0.295386] ------------[ cut here ]------------
> > [    0.300450] WARNING: CPU: 0 PID: 1 at drivers/clk/tegra/clk.c:187 
> > tegra_init_from_table+0x78/0x158()
> > [    0.310362] Modules linked in:
> > [    0.313740] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 
> > 3.12.0-rc5-next-20131014-05418-g30b9d55 #48
> > [    0.323397] [<c0016644>] (unwind_backtrace+0x0/0x138) from [<c001225c>] 
> > (show_stack+0x10/0x14)
> > [    0.332753] [<c001225c>] (show_stack+0x10/0x14) from [<c0572274>] 
> > (dump_stack+0x80/0xc0)
> > [    0.341559] [<c0572274>] (dump_stack+0x80/0xc0) from [<c0025d54>] 
> > (warn_slowpath_common+0x64/0x88)
> > [    0.351283] [<c0025d54>] (warn_slowpath_common+0x64/0x88) from 
> > [<c0025d94>] (warn_slowpath_null+0x1c/0x24)
> > [    0.361768] [<c0025d94>] (warn_slowpath_null+0x1c/0x24) from 
> > [<c07b4c1c>] (tegra_init_from_table+0x78/0x158)
> > [    0.372440] [<c07b4c1c>] (tegra_init_from_table+0x78/0x158) from 
> > [<c07b4e10>] (tegra_clocks_apply_init_table+0x18/0x20)
> > [    0.384138] [<c07b4e10>] (tegra_clocks_apply_init_table+0x18/0x20) from 
> > [<c079f9cc>] (tegra_dt_init+0xc/0xd8)
> > [    0.394903] [<c079f9cc>] (tegra_dt_init+0xc/0xd8) from [<c079a580>] 
> > (customize_machine+0x1c/0x40)
> > [    0.404535] [<c079a580>] (customize_machine+0x1c/0x40) from [<c00089e0>] 
> > (do_one_initcall+0xec/0x19c)
> > [    0.414551] [<c00089e0>] (do_one_initcall+0xec/0x19c) from [<c0798ba8>] 
> > (kernel_init_freeable+0xfc/0x1c8)
> > [    0.424944] [<c0798ba8>] (kernel_init_freeable+0xfc/0x1c8) from 
> > [<c056d5a8>] (kernel_init+0x8/0xe4)
> > [    0.434764] [<c056d5a8>] (kernel_init+0x8/0xe4) from [<c000f0f8>] 
> > (ret_from_fork+0x14/0x3c)
> > [    0.443850] ---[ end trace 98c2207379d4cf99 ]---
> 

Did you see  'tegra_init_from_table: Failed to set parent pll_c2 of epp ' 
before? Tegra124 doesn't have EPP...

Cheers,

Peter.
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