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From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] ARM: OMAP1: Fix dpll1 reprogramming not actually allowed
Date: Mon, 28 Nov 2011 09:46:16 -0800	[thread overview]
Message-ID: <20111128174616.GP31337@atomide.com> (raw)
In-Reply-To: <1322364751-29980-4-git-send-email-jkrzyszt@tis.icnet.pl>

* Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> [111126 19:06]:
> DPLL1 reprogramming to a different rate is actually blocked inside
> omap1_select_table_rate(), resulting in the defalut rate of 60 MHz
> always used instead of the one selected in .config. Fix it.
> 
> Created against linux-3.2-rc2, tested on Amstrad Delta on top of
> linux-omap/fixes.

This too first requires something for boards to pass the supported
rates.

Tony
 
> Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
> ---
>  arch/arm/mach-omap1/clock.c |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
> index 3899176..962adbc 100644
> --- a/arch/arm/mach-omap1/clock.c
> +++ b/arch/arm/mach-omap1/clock.c
> @@ -200,10 +200,6 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate)
>  		if (ptr->xtal != ref_rate)
>  			continue;
>  
> -		/* DPLL1 cannot be reprogrammed without risking system crash */
> -		if (likely(dpll1_rate != 0) && ptr->pll_rate != dpll1_rate)
> -			continue;
> -
>  		/* Can check only after xtal frequency check */
>  		if (ptr->rate <= rate)
>  			break;
> -- 
> 1.7.3.4
> 

  reply	other threads:[~2011-11-28 17:46 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-27  3:32 [PATCH 0/5] ARM: OMAP1: Fix dpll1 reprogramming related issues Janusz Krzysztofik
2011-11-27  3:32 ` [PATCH 1/5] ARM: OMAP1: Fix dpll1 default rate reprogramming method Janusz Krzysztofik
2011-11-28 17:45   ` Tony Lindgren
2011-11-28 22:00     ` [PATCH 2a/5] Remove unsafe clock values from omap1_defconfig Janusz Krzysztofik
2011-11-30 22:32       ` Tony Lindgren
2011-11-30 20:57     ` [PATCH 2a/5 v2] ARM: OMAP1: select clock rate by CPU type Janusz Krzysztofik
2011-11-30 22:28       ` Tony Lindgren
2011-12-01 10:10         ` Janusz Krzysztofik
2011-12-01 18:22           ` Tony Lindgren
2011-12-01 18:54             ` Janusz Krzysztofik
2011-12-01 19:06               ` Tony Lindgren
2011-12-04 12:17         ` [PATCH] ARM: OMAP1: Move dpll1 rates selection from config to runtime Janusz Krzysztofik
2011-12-08 23:13           ` Janusz Krzysztofik
2011-12-09  1:51             ` [PATCH v2] " Janusz Krzysztofik
2011-12-09  2:09               ` Tony Lindgren
2011-12-09  2:31                 ` Janusz Krzysztofik
2011-12-09  1:51       ` [PATCH] ARM: OMAP1: Set the omap1623 sram size to 16K Tony Lindgren
     [not found]     ` <201112010310.43890.jkrzyszt@tis.icnet.pl>
     [not found]       ` <20111201022750.GY13928@atomide.com>
2011-12-01  9:54         ` [PATCH 2a/5] Remove unsafe clock values from omap1_defconfig Janusz Krzysztofik
2011-12-01 10:21           ` Janusz Krzysztofik
2011-12-01 17:17           ` Tony Lindgren
2011-12-01 18:38             ` Janusz Krzysztofik
2011-12-01 19:04               ` Tony Lindgren
2011-12-01 19:23                 ` Janusz Krzysztofik
2011-12-01 19:46                   ` Tony Lindgren
2011-12-01 20:30                     ` [PATCH] ARM: OMAP1: " Janusz Krzysztofik
2011-12-01 20:13                   ` [PATCH 0/2 v2] ARM: OMAP1: Fix dpll1 reprogramming related issues Janusz Krzysztofik
2011-12-01 21:16                     ` [PATCH v2] ARM: OMAP1: Update dpll1 default rate reprogramming method Janusz Krzysztofik
2011-12-02  2:09                     ` [PATCH 0/2 v2] ARM: OMAP1: Fix dpll1 reprogramming related issues Tony Lindgren
2011-12-02 17:02                       ` Janusz Krzysztofik
2011-12-01 20:13                   ` [PATCH 1/2 v2] ARM: OMAP1: Fix ckctl value used for dpll1 defualt rate Janusz Krzysztofik
2011-12-01 20:13                   ` [PATCH 2/2 v2] ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogram Janusz Krzysztofik
2011-12-04 15:07                 ` [PATCH] ARM: OMAP1: Always reprogramme dpll1 rate at boot Janusz Krzysztofik
2011-11-27  3:32 ` [PATCH 2/5] ARM: OMAP1: Fix ckctl value used for dpll1 defualt rate Janusz Krzysztofik
2011-11-27  3:32 ` [PATCH 3/5] ARM: OMAP1: Fix dpll1 reprogramming not actually allowed Janusz Krzysztofik
2011-11-28 17:46   ` Tony Lindgren [this message]
2011-11-27  3:32 ` [PATCH 4/5] init/calibrate.c: allow for recalibration of loops per jiffy Janusz Krzysztofik
2011-11-28 15:39   ` Russell King - ARM Linux
2011-11-28 22:30     ` Janusz Krzysztofik
2011-11-27  3:32 ` [PATCH 5/5] ARM: OMAP1: recalibrate loops per jiffy after dpll1 reprogram Janusz Krzysztofik
2011-11-29  0:25   ` [PATCH 5/5 v2] ARM: OMAP1: recalculate " Janusz Krzysztofik
2011-12-09  8:42     ` Russell King - ARM Linux
2011-12-09 10:00       ` Janusz Krzysztofik
2011-12-09 10:09         ` Janusz Krzysztofik
2011-12-10  0:25         ` Russell King - ARM Linux
2011-12-10 12:04           ` Janusz Krzysztofik

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