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ARM: OMAP4: clock data: Lock ABE DPLL on all revisions

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To avoid issues with audio caused by non locked ABE DPLL we should
make sure it is locked in all OMAP4 revisions.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: cleaned up patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Peter Ujfalusi 2013-01-18 16:48:15 -07:00 • committed by Paul Walmsley
parent 7d1f9aeff1
commit 981827a2b7
1 changed files with 6 additions and 7 deletions
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13
arch/arm/mach-omap2/cclock44xx_data.c
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@ -2026,14 +2026,13 @@ int __init omap4xxx_clk_init(void)
* On OMAP4460 the ABE DPLL fails to turn on if in idle low-power * On OMAP4460 the ABE DPLL fails to turn on if in idle low-power
* state when turning the ABE clock domain. Workaround this by * state when turning the ABE clock domain. Workaround this by
* locking the ABE DPLL on boot. * locking the ABE DPLL on boot.
* Lock the ABE DPLL in any case to avoid issues with audio.
*/ */
if (cpu_is_omap446x()) { rc = clk_set_parent(&abe_dpll_refclk_mux_ck, &sys_32k_ck);
rc = clk_set_parent(&abe_dpll_refclk_mux_ck, &sys_32k_ck); if (!rc)
if (!rc) rc = clk_set_rate(&dpll_abe_ck, OMAP4_DPLL_ABE_DEFFREQ);
rc = clk_set_rate(&dpll_abe_ck, OMAP4_DPLL_ABE_DEFFREQ); if (rc)
if (rc) pr_err("%s: failed to configure ABE DPLL!\n", __func__);
pr_err("%s: failed to configure ABE DPLL!\n", __func__);
}
return 0; return 0;
} }