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From: clabbe.montjoie@gmail.com (LABBE Corentin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/8] arm: orion5x: Add clk support for mv88f5181
Date: Fri, 26 Aug 2016 13:34:37 +0200	[thread overview]
Message-ID: <20160826113437.GA12692@Red> (raw)
In-Reply-To: <1472203264-21089-3-git-send-email-jm@lentin.co.uk>

Hello

I have some minor comments below

[...]
> +
> +static u32 __init mv88f5181_get_tclk_freq(void __iomem *sar)
> +{
> +	u32 opt = (readl(sar) >> SAR_MV88F5181_TCLK_FREQ) &
> +		SAR_MV88F5181_TCLK_FREQ_MASK;

Checkpatch complain about a missing blank line after declaration.
And spliting the read and the & operation will prevent this line breaking

> +	if (opt == 0)
> +		return 133333333;
> +	else if (opt == 1)
> +		return 150000000;
> +	else if (opt == 2)
> +		return 166666667;
> +	else
> +		return 0;
> +}

Why not using a switch here ?

> +
> +#define SAR_MV88F5181_CPU_FREQ       4
> +#define SAR_MV88F5181_CPU_FREQ_MASK  0xf
> +
> +static u32 __init mv88f5181_get_cpu_freq(void __iomem *sar)
> +{
> +	u32 opt = (readl(sar) >> SAR_MV88F5181_CPU_FREQ) &
> +		SAR_MV88F5181_CPU_FREQ_MASK;
> +	if (opt == 0)
> +		return 333333333;
> +	else if (opt == 1 || opt == 2)
> +		return 400000000;
> +	else if (opt == 3)
> +		return 500000000;
> +	else
> +		return 0;
> +}

Same comments

> +
> +static void __init mv88f5181_get_clk_ratio(void __iomem *sar, int id,
> +					   int *mult, int *div)
> +{
> +	u32 opt = (readl(sar) >> SAR_MV88F5181_CPU_FREQ) &
> +		SAR_MV88F5181_CPU_FREQ_MASK;
> +	if (opt == 0 || opt == 1) {
> +		*mult = 1;
> +		*div  = 2;
> +	} else if (opt == 2 || opt == 3) {
> +		*mult = 1;
> +		*div  = 3;
> +	} else {
> +		*mult = 0;
> +		*div  = 1;
> +	}
> +}

Same comments

Regards

  reply	other threads:[~2016-08-26 11:34 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-16 14:28 [PATCH v0 00/10] Convert Netgear WNR854T to devicetree Jamie Lentin
2016-07-16 14:28 ` [PATCH v0 01/10] arm: orion5x: Add required properties for orion-wdt to DT node Jamie Lentin
2016-07-16 16:03   ` Andrew Lunn
2016-07-16 14:29 ` [PATCH v0 02/10] arm: orion5x: Add documentation for SoC and board bindings Jamie Lentin
2016-07-16 16:05   ` Andrew Lunn
2016-07-17 20:35   ` Rob Herring
2016-07-16 14:29 ` [PATCH v0 03/10] arm: orion5x: Add clk support for mv88f5181 Jamie Lentin
2016-07-16 16:10   ` Andrew Lunn
2016-07-16 17:34   ` Sergei Shtylyov
2016-07-17 20:36   ` Rob Herring
2016-07-16 14:29 ` [PATCH v0 04/10] arm: orion5x: Generalise mv88f5181l pinctrl support for 88f5181 Jamie Lentin
2016-07-16 16:15   ` Andrew Lunn
2016-07-17 20:40   ` Rob Herring
2016-07-16 14:29 ` [PATCH v0 05/10] arm: orion5x: Add DT include for mv88f5181 Jamie Lentin
2016-07-16 16:17   ` Andrew Lunn
2016-07-17 20:41   ` Rob Herring
2016-07-16 14:29 ` [PATCH v0 06/10] arm: orion5x: Add DT-based support for Netgear WNR854T Jamie Lentin
2016-07-16 16:34   ` Andrew Lunn
2016-07-16 16:39   ` Andrew Lunn
2016-07-16 19:10   ` Arnd Bergmann
2016-07-17  9:39     ` Jamie Lentin
2016-07-17 20:41       ` Arnd Bergmann
2016-07-18  9:44         ` Thomas Petazzoni
2016-07-18 10:06           ` Arnd Bergmann
2016-07-19  9:40             ` Jamie Lentin
2016-07-19  9:46               ` Arnd Bergmann
2016-07-17 20:51   ` Rob Herring
2016-07-19  9:46     ` Jamie Lentin
2016-07-16 14:29 ` [PATCH v0 07/10] arm: orion5x: Remove old non-DT-based WNR854T support Jamie Lentin
2016-07-16 16:36   ` Andrew Lunn
2016-07-16 14:29 ` [PATCH v0 08/10] net: phy: Try looking for a phy-handle property to find the OF node Jamie Lentin
2016-07-16 16:44   ` Andrew Lunn
2016-07-16 14:29 ` [PATCH v0 09/10] net: phy: Re-attempt custom DT configuration after configuration Jamie Lentin
2016-07-16 16:44   ` Andrew Lunn
2016-07-16 14:29 ` [PATCH v0 10/10] arm: orion5x: Configure Netgear WNR854T network port LEDs Jamie Lentin
2016-07-16 20:53 ` [PATCH v0 00/10] Convert Netgear WNR854T to devicetree Andrew Lunn
2016-07-17 12:52   ` Jamie Lentin
2016-07-17 15:33     ` Andrew Lunn
2016-07-19  9:33       ` Jamie Lentin
2016-07-19 14:01         ` Andrew Lunn
2016-08-26  9:20 ` [PATCH 0/8] " Jamie Lentin
2016-08-26  9:20   ` [PATCH 1/8] arm: orion5x: Add documentation for SoC and board bindings Jamie Lentin
2016-08-26  9:20   ` [PATCH 2/8] arm: orion5x: Add clk support for mv88f5181 Jamie Lentin
2016-08-26 11:34     ` LABBE Corentin [this message]
2016-08-26 12:24       ` Jamie Lentin
2016-08-26 14:24         ` Andrew Lunn
2016-08-26  9:20   ` [PATCH 3/8] arm: orion5x: Generalise mv88f5181l pinctrl support for 88f5181 Jamie Lentin
2016-08-26  9:21   ` [PATCH 4/8] arm: orion5x: Alias uart0 to serial0 for all orion5x Jamie Lentin
2016-08-26 14:54     ` Andrew Lunn
2016-09-12 21:12     ` Arnd Bergmann
2016-08-26  9:21   ` [PATCH 5/8] arm: orion5x: Add DT include for mv88f5181 Jamie Lentin
2016-08-26 14:55     ` Andrew Lunn
2016-08-31 15:15     ` Rob Herring
2016-08-26  9:21   ` [PATCH 6/8] arm: orion5x: Add DT-based support for Netgear WNR854T Jamie Lentin
2016-08-31 15:26     ` Rob Herring
2016-09-05 21:07     ` [PATCH 6/8 v2] " Jamie Lentin
2016-09-08 12:41       ` Gregory CLEMENT
2016-09-08 16:47         ` Jamie Lentin
2016-09-12 17:06       ` Rob Herring
2016-09-12 21:13         ` Arnd Bergmann
2016-09-12 21:19           ` Arnd Bergmann
2016-09-12 22:03           ` Andrew Lunn
2016-09-13  9:10             ` Jamie Lentin
2016-09-13 12:36               ` Andrew Lunn
2016-09-13 14:15                 ` Jamie Lentin
2016-09-13 19:16                   ` Gregory CLEMENT
2016-09-13 20:39                     ` Arnd Bergmann
2016-08-26  9:21   ` [PATCH 7/8] arm: orion5x: Remove old non-DT-based WNR854T support Jamie Lentin
2016-08-26 14:59     ` Andrew Lunn
2016-08-26  9:21   ` [PATCH 8/8] arm: orion5x: Configure WNR854T ethernet PHY LEDs Jamie Lentin
2016-08-26 15:05     ` Andrew Lunn
2016-08-26 15:05     ` Andrew Lunn
2016-08-26 12:09   ` [PATCH 0/8] Convert Netgear WNR854T to devicetree Imre Kaloz
2016-08-26 12:56     ` Jamie Lentin
2016-08-26 14:33       ` Andrew Lunn
2016-08-26 16:50         ` Jamie Lentin
2016-08-26 20:30           ` Imre Kaloz

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