From: Stephen Boyd <sboyd@kernel.org>
To: Rajan Vaja <rajan.vaja@xilinx.com>,
gustavo@embeddedor.com, jolly.shah@xilinx.com,
m.tretter@pengutronix.de, mark.rutland@arm.com, mdf@kernel.org,
michal.simek@xilinx.com, mturquette@baylibre.com,
nava.manne@xilinx.com, robh+dt@kernel.org,
tejas.patel@xilinx.com
Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Rajan Vaja <rajan.vaja@xilinx.com>
Subject: Re: [PATCH v3 5/6] clk: zynqmp: Fix divider calculation
Date: Thu, 23 Jan 2020 14:58:59 -0800 [thread overview]
Message-ID: <20200123225859.B264120718@mail.kernel.org> (raw)
In-Reply-To: <1575527759-26452-6-git-send-email-rajan.vaja@xilinx.com>
Quoting Rajan Vaja (2019-12-04 22:35:58)
> zynqmp_clk_divider_round_rate() returns actual divider value
> after calculating from parent rate and desired rate, even though
> that rate is not supported by single divider of hardware. It is
> also possible that such divisor value can be achieved through 2
> different dividers. As, Linux tries to set such divisor value(out
> of range) in single divider set divider is getting failed.
>
> Fix the same by computing best possible combination of two
> divisors which provides more accurate clock rate.
>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
> Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
> ---
Applied to clk-next
next prev parent reply other threads:[~2020-01-23 22:59 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-12 13:16 [PATCH 0/7] clk: zynqmp: Extend and fix zynqmp clock driver Rajan Vaja
2019-11-12 13:16 ` [PATCH 1/7] dt-bindings: clock: Add bindings for versal " Rajan Vaja
2019-11-12 22:51 ` Stephen Boyd
2019-11-18 17:30 ` Rob Herring
2019-11-12 13:16 ` [PATCH 2/7] clk: zynqmp: Extend driver for versal Rajan Vaja
2019-11-12 13:16 ` [PATCH 3/7] clk: zynqmp: Warn user if clock user are more than allowed Rajan Vaja
2019-11-21 14:31 ` Michael Tretter
2019-11-12 13:16 ` [PATCH 4/7] clk: zynqmp: Add support for get max divider Rajan Vaja
2019-11-21 14:33 ` Michael Tretter
2019-11-12 13:16 ` [PATCH 5/7] clk: zynqmp: Fix divider calculation Rajan Vaja
2019-11-12 13:16 ` [PATCH 6/7] clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag Rajan Vaja
2019-11-12 13:16 ` [PATCH 7/7] clk: zynqmp: Fix fractional clock check Rajan Vaja
2019-11-21 14:41 ` Michael Tretter
2019-11-22 9:43 ` [PATCH v2 0/6] clk: zynqmp: Extend and fix zynqmp clock driver Rajan Vaja
2019-11-22 9:43 ` [PATCH v2 1/6] dt-bindings: clock: Add bindings for versal " Rajan Vaja
2019-12-04 19:53 ` Rob Herring
2019-11-22 9:43 ` [PATCH v2 2/6] clk: zynqmp: Extend driver for versal Rajan Vaja
2019-11-22 9:43 ` [PATCH v2 3/6] clk: zynqmp: Warn user if clock user are more than allowed Rajan Vaja
2019-11-22 9:43 ` [PATCH v2 4/6] clk: zynqmp: Add support for get max divider Rajan Vaja
2019-11-22 9:43 ` [PATCH v2 5/6] clk: zynqmp: Fix divider calculation Rajan Vaja
2019-11-22 9:43 ` [PATCH v2 6/6] clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag Rajan Vaja
2019-12-05 6:35 ` [PATCH v3 0/6] clk: zynqmp: Extend and fix zynqmp clock driver Rajan Vaja
2019-12-05 6:35 ` [PATCH v3 1/6] dt-bindings: clock: Add bindings for versal " Rajan Vaja
2020-01-23 22:58 ` Stephen Boyd
2019-12-05 6:35 ` [PATCH v3 2/6] clk: zynqmp: Extend driver for versal Rajan Vaja
2020-01-23 22:58 ` Stephen Boyd
2019-12-05 6:35 ` [PATCH v3 3/6] clk: zynqmp: Warn user if clock user are more than allowed Rajan Vaja
2020-01-23 22:58 ` Stephen Boyd
2019-12-05 6:35 ` [PATCH v3 4/6] clk: zynqmp: Add support for get max divider Rajan Vaja
2020-01-23 22:58 ` Stephen Boyd
2019-12-05 6:35 ` [PATCH v3 5/6] clk: zynqmp: Fix divider calculation Rajan Vaja
2020-01-23 22:58 ` Stephen Boyd [this message]
2019-12-05 6:35 ` [PATCH v3 6/6] clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag Rajan Vaja
2020-01-23 22:59 ` Stephen Boyd
2019-12-12 15:20 ` [PATCH v3 0/6] clk: zynqmp: Extend and fix zynqmp clock driver Michal Simek
2020-01-16 11:41 ` Rajan Vaja
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