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authorPaul Walmsley <paul@pwsan.com>2010-01-26 20:12:59 -0700
committerPaul Walmsley <paul@pwsan.com>2010-01-26 20:12:59 -0700
commit55ed96945b1f3d0f4ad21a27b32ce4bd99d8c268 (patch)
tree0bec60498742922a9c00f39ff63eb48549d391fc /arch/arm/mach-omap2/prcm.c
parent6b04e0d99d4113ede24e263e3df246a17f490339 (diff)
downloadop-kernel-dev-55ed96945b1f3d0f4ad21a27b32ce4bd99d8c268.zip
op-kernel-dev-55ed96945b1f3d0f4ad21a27b32ce4bd99d8c268.tar.gz
OMAP2/3 clkdm/pwrdm: move wkdep/sleepdep handling from pwrdm to clkdm
Move clockdomain wakeup dependency and sleep dependency data structures from the powerdomain layer to the clockdomain layer, where they belong. These dependencies were originally placed in the powerdomain layer due to unclear documentation; however, it is clear now that these dependencies are between clockdomains. For OMAP2/3, this is not such a big problem, but for OMAP4 this needs to be fixed. Thanks to Benoît Cousson <b-cousson@ti.com> for his advice on this patch. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/prcm.c')
-rw-r--r--arch/arm/mach-omap2/prcm.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
index 82ad8f8..abafd22 100644
--- a/arch/arm/mach-omap2/prcm.c
+++ b/arch/arm/mach-omap2/prcm.c
@@ -199,6 +199,18 @@ u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
return v;
}
+/* Read a PRM register, AND it, and shift the result down to bit 0 */
+u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
+{
+ u32 v;
+
+ v = prm_read_mod_reg(domain, idx);
+ v &= mask;
+ v >>= __ffs(mask);
+
+ return v;
+}
+
/* Read a register in a CM module */
u32 cm_read_mod_reg(s16 module, u16 idx)
{
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