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[212.204.172.199]) by smtp.gmail.com with ESMTPSA id w2sm39361075edb.4.2018.01.01.11.43.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 01 Jan 2018 11:43:31 -0800 (PST) From: Bryan O'Donoghue To: mturquette@baylibre.com, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: Bryan O'Donoghue , Tony Prisk Subject: [PATCH v3 16/34] clk: vt8500: change vtwm_pll_round_rate() return logic Date: Mon, 1 Jan 2018 19:42:55 +0000 Message-Id: <1514835793-1104-17-git-send-email-pure.logic@nexus-software.ie> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514835793-1104-1-git-send-email-pure.logic@nexus-software.ie> References: <1514835793-1104-1-git-send-email-pure.logic@nexus-software.ie> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-clk@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Tony Prisk --- drivers/clk/clk-vt8500.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c index 43c88f6..750c087 100644 --- a/drivers/clk/clk-vt8500.c +++ b/drivers/clk/clk-vt8500.c @@ -610,7 +610,7 @@ static unsigned long vtwm_pll_round_rate(struct clk_hw *hw, unsigned long rate, struct clk_pll *pll = to_clk_pll(hw); u32 filter, mul, div1, div2; long round_rate; - int ret; + int ret = 1; switch (pll->type) { case PLL_TYPE_VT8500: @@ -634,11 +634,11 @@ static unsigned long vtwm_pll_round_rate(struct clk_hw *hw, unsigned long rate, round_rate = WM8850_BITS_TO_FREQ(*prate, mul, div1, div2); break; default: - ret = -EINVAL; + break; } if (ret) - return ret; + return 0; return round_rate; }