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[17/33] clk: mvebu: change dove_round_rate() return logic

Message ID 1514596392-22270-18-git-send-email-pure.logic@nexus-software.ie (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Bryan O'Donoghue Dec. 30, 2017, 1:12 a.m. UTC 
This patch updates the round_rate() logic here to return zero instead of a
negative number on error.

In conjunction with higher-level changes associated with acting on the
return value of clk_ops->round_rate() it is then possible to have
clk_ops->round_rate() return values from 1 Hz to ULONG_MAX Hz instead of
the current limitation of 1 Hz to LONG_MAX Hz.

Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/clk/mvebu/dove-divider.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/clk/mvebu/dove-divider.c b/drivers/clk/mvebu/dove-divider.c
index 234ba0a..7704b5e 100644
--- a/drivers/clk/mvebu/dove-divider.c
+++ b/drivers/clk/mvebu/dove-divider.c
@@ -117,7 +117,7 @@  static unsigned long dove_round_rate(struct clk_hw *hw, unsigned long rate,
 
 	divider = dove_calc_divider(dc, rate, parent_rate, false);
 	if (divider < 0)
-		return divider;
+		return 0;
 
 	rate = DIV_ROUND_CLOSEST(parent_rate, divider);