clk: basic-type: Silence warnings about lock imbalances

The basic clock types use conditional locking for the register
accessor spinlocks. Add __acquire() and __release() markings in
the right locations so that sparse isn't tripped up on the
conditional locking.

drivers/clk/clk-mux.c:68:12: warning: context imbalance in 'clk_mux_set_parent' - different lock contexts for basic block
drivers/clk/clk-divider.c:379:12: warning: context imbalance in 'clk_divider_set_rate' - different lock contexts for basic block
drivers/clk/clk-gate.c:71:9: warning: context imbalance in 'clk_gate_endisable' - different lock contexts for basic block
drivers/clk/clk-fractional-divider.c:36:9: warning: context imbalance in 'clk_fd_recalc_rate' - different lock contexts for basic block
drivers/clk/clk-fractional-divider.c:68:12: warning: context imbalance in 'clk_fd_set_rate' - different lock contexts for basic block

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index 2cab88b9c1a8..a417162537b8 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -395,6 +395,8 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
 
         if (divider->lock)
                 spin_lock_irqsave(divider->lock, flags);
+        else
+                __acquire(divider->lock);
 
         if (divider->flags & CLK_DIVIDER_HIWORD_MASK) {
                 val = div_mask(divider->width) << (divider->shift + 16);
@@ -407,6 +409,8 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
 
         if (divider->lock)
                 spin_unlock_irqrestore(divider->lock, flags);
+        else
+                __release(divider->lock);
 
         return 0;
 }