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author | Paul Walmsley <paul@pwsan.com> | 2011-01-17 13:28:17 -0700 |
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committer | Paul Walmsley <paul@pwsan.com> | 2011-01-18 12:36:53 -0700 |
commit | 56bc78d414aa79bce42836df6efe9b9bef92a59d (patch) | |
tree | 713cf0337c9dd03f618d310d9ea68b85936586fe /arch | |
parent | d8328f3b85f34c0dc5866f10bf6e7842fb511d62 (diff) | |
download | kernel_samsung_crespo-56bc78d414aa79bce42836df6efe9b9bef92a59d.zip kernel_samsung_crespo-56bc78d414aa79bce42836df6efe9b9bef92a59d.tar.gz kernel_samsung_crespo-56bc78d414aa79bce42836df6efe9b9bef92a59d.tar.bz2 |
OMAP4: clockdomain: bypass unimplemented wake-up dependency functions on OMAP4
Commit 56a6a19dffda6b75cef8d4183c7c6ff650025cbd ("omap2plus: prm:
Trvial build break fix for undefined reference to
'omap2_prm_read_mod_reg'") generates a lot of warnings on boot since
clockdomain functions that manipulate wake-up dependencies are not
implemented yet on OMAP4 for 2.6.38. This patch bypasses the OMAP2/3
functions on OMAP4, which in turn avoids the warnings when the
functions would attempt to call the underlying OMAP2/3 PRCM functions.
A one-line warning is still logged from the clockdomain code that the
OMAP4 wake-up dependency code is not yet implemented.
A clockdomain wake-up and sleep dependency implementation for OMAP4
from Rajendra should be possible to merge during the 2.6.39 merge
window:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg41748.html
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg42222.html
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: BenoƮt Cousson <b-cousson@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-omap2/clockdomain.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index e20b986..58e42f7 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -423,6 +423,12 @@ int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) { struct clkdm_dep *cd; + if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) { + pr_err("clockdomain: %s/%s: %s: not yet implemented\n", + clkdm1->name, clkdm2->name, __func__); + return -EINVAL; + } + if (!clkdm1 || !clkdm2) return -EINVAL; @@ -458,6 +464,12 @@ int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) { struct clkdm_dep *cd; + if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) { + pr_err("clockdomain: %s/%s: %s: not yet implemented\n", + clkdm1->name, clkdm2->name, __func__); + return -EINVAL; + } + if (!clkdm1 || !clkdm2) return -EINVAL; @@ -500,6 +512,12 @@ int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2) if (!clkdm1 || !clkdm2) return -EINVAL; + if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) { + pr_err("clockdomain: %s/%s: %s: not yet implemented\n", + clkdm1->name, clkdm2->name, __func__); + return -EINVAL; + } + cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs); if (IS_ERR(cd)) { pr_debug("clockdomain: hardware cannot set/clear wake up of " @@ -527,6 +545,12 @@ int clkdm_clear_all_wkdeps(struct clockdomain *clkdm) struct clkdm_dep *cd; u32 mask = 0; + if (!cpu_is_omap24xx() && !cpu_is_omap34xx()) { + pr_err("clockdomain: %s: %s: not yet implemented\n", + clkdm->name, __func__); + return -EINVAL; + } + if (!clkdm) return -EINVAL; @@ -830,8 +854,7 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm) * dependency code and data for OMAP4. */ if (cpu_is_omap44xx()) { - WARN_ONCE(1, "clockdomain: OMAP4 wakeup/sleep dependency " - "support is not yet implemented\n"); + pr_err("clockdomain: %s: OMAP4 wakeup/sleep dependency support: not yet implemented\n", clkdm->name); } else { if (atomic_read(&clkdm->usecount) > 0) _clkdm_add_autodeps(clkdm); @@ -872,8 +895,7 @@ void omap2_clkdm_deny_idle(struct clockdomain *clkdm) * dependency code and data for OMAP4. */ if (cpu_is_omap44xx()) { - WARN_ONCE(1, "clockdomain: OMAP4 wakeup/sleep dependency " - "support is not yet implemented\n"); + pr_err("clockdomain: %s: OMAP4 wakeup/sleep dependency support: not yet implemented\n", clkdm->name); } else { if (atomic_read(&clkdm->usecount) > 0) _clkdm_del_autodeps(clkdm); |