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From: Amit Sunil Dhamne <amit.sunil.dhamne@xilinx.com>
To: mturquette@baylibre.com, sboyd@kernel.org,
	michal.simek@xilinx.com, mark.rutland@arm.com,
	linux-clk@vger.kernel.org
Cc: rajanv@xilinx.com, jollys@xilinx.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Rajan Vaja <rajan.vaja@xilinx.com>,
	Jolly Shah <jolly.shah@xilinx.com>,
	Amit Sunil Dhamne <amit.sunil.dhamne@xilinx.com>
Subject: [RESEND PATCH v2 1/4] drivers: clk: zynqmp: Limit bestdiv with maxdiv
Date: Fri,  1 May 2020 21:37:00 -0700	[thread overview]
Message-ID: <1588394223-257635-2-git-send-email-amit.sunil.dhamne@xilinx.com> (raw)
In-Reply-To: <1588394223-257635-1-git-send-email-amit.sunil.dhamne@xilinx.com>

From: Rajan Vaja <rajan.vaja@xilinx.com>

Clock divider value should not be greater than maximum divider value.
So use minimum of best divider or maximum divider value.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Signed-off-by: Amit Sunil Dhamne <amit.sunil.dhamne@xilinx.com>
---
 drivers/clk/zynqmp/divider.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
index 4be2cc7..5c41ddb 100644
--- a/drivers/clk/zynqmp/divider.c
+++ b/drivers/clk/zynqmp/divider.c
@@ -197,6 +197,8 @@ static long zynqmp_clk_divider_round_rate(struct clk_hw *hw,

        if ((clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) && divider->is_frac)
                bestdiv = rate % *prate ? 1 : bestdiv;
+
+       bestdiv = min_t(u32, bestdiv, divider->max_div);
        *prate = rate * bestdiv;

        return rate;
--
2.7.4

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  reply	other threads:[~2020-05-02  4:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-02  4:36 [RESEND PATCH v2 0/4] drivers: clk: zynqmp: minor bux fixes for zynqmp clock driver Amit Sunil Dhamne
2020-05-02  4:37 ` Amit Sunil Dhamne [this message]
2020-05-02  4:37 ` [RESEND PATCH v2 2/4] drivers: clk: zynqmp: Fix divider2 calculation Amit Sunil Dhamne
2020-05-02  4:37 ` [RESEND PATCH v2 3/4] drivers: clk: zynqmp: Fix invalid clock name queries Amit Sunil Dhamne
2020-05-02  4:37 ` [RESEND PATCH v2 4/4] drivers: clk: zynqmp: fix memory leak in zynqmp_register_clocks Amit Sunil Dhamne

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