Davinci: support LPSC SwRstDisable state

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The current clock control code always gates the clock (PSC state Disable = 2)
on clk_disable().  Some on-chip peripherals (e.g. LCD controller on TNETV107X)
need to be put into SwRstDisable = 0 on clock disable, to maintain
hardware sanity.

This patch extends the davinci_psc_config() arguments to pass in the desired
module state instead of a boolean enable/disable.  Further, clk_disable() now
checks for the PSC_SWRSTDISABLE clk flag before selecting the target state.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

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Cyril Chemparathy 2010-03-25 17:43:47 -04:00 • committed by Kevin Hilman

parent 449ef7f6a9

commit 52958be3ad

4 changed files with 21 additions and 9 deletions

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12

arch/arm/mach-davinci/clock.c

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7

arch/arm/mach-davinci/clock.h

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8

arch/arm/mach-davinci/include/mach/psc.h

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3

arch/arm/mach-davinci/psc.c

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