[v3,25/34] clk: tegra: bpmp: change tegra_bpmp_clk_round_rate() return logic

Message ID 1514835793-1104-26-git-send-email-pure.logic@nexus-software.ie
State New
Headers show
Series
  • [v3,01/34] clk_ops: change round_rate() to return unsigned long
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Commit Message

Bryan O'Donoghue Jan. 1, 2018, 7:43 p.m.
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: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/clk/tegra/clk-bpmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c
index 0c1197b..4297bb2 100644
--- a/drivers/clk/tegra/clk-bpmp.c
+++ b/drivers/clk/tegra/clk-bpmp.c
@@ -190,7 +190,7 @@  static unsigned long tegra_bpmp_clk_round_rate(struct clk_hw *hw,
 
 	err = tegra_bpmp_clk_transfer(clk->bpmp, &msg);
 	if (err < 0)
-		return err;
+		return 0;
 
 	return response.rate;
 }