ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogram
Otherwise timing is inaccurate, resulting in devices which depend on it, like omap-keypad, broken. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> [tony@atomide.com: removed comment referencing a development branch] Signed-off-by: Tony Lindgren <tony@atomide.com>
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@ -16,6 +16,8 @@
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <linux/cpufreq.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <asm/mach-types.h> /* for machine_is_* */
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@ -927,7 +929,9 @@ int __init omap1_clk_init(void)
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void __init omap1_clk_late_init(void)
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{
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if (ck_dpll1.rate >= OMAP1_DPLL1_SANE_VALUE)
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unsigned long rate = ck_dpll1.rate;
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if (rate >= OMAP1_DPLL1_SANE_VALUE)
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return;
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/* System booting at unusable rate, force reprogramming of DPLL1 */
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@ -942,4 +946,5 @@ void __init omap1_clk_late_init(void)
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}
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propagate_rate(&ck_dpll1);
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omap1_show_rates();
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loops_per_jiffy = cpufreq_scale(loops_per_jiffy, rate, ck_dpll1.rate);
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}
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