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[6/8] OMAP3 PM: Enable DPLL4 autoidle after system off.

Message ID 1264001442-20078-7-git-send-email-thara@ti.com (mailing list archive)
State Changes Requested
Delegated to: Kevin Hilman
Headers show

Commit Message

Thara Gopinath Jan. 20, 2010, 3:30 p.m. UTC 
None
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Patch

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index e4db1ea..6e6d954 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -520,6 +520,14 @@  void omap_sram_idle(void)
 			 */
 			if (cpu_is_omap3430())
 				usb_musb_disable_autoidle();
+			/* We do not program the scratchpad to restore back
+			 * PER DPLL in autoidle due to 20 ms delay in
+			 * rom code restore path. So enable it explicitly
+			 * after core off
+			 */
+			cm_rmw_mod_reg_bits(
+				0x0, (1 << OMAP3430_AUTO_PERIPH_DPLL_SHIFT),
+				PLL_MOD, CM_AUTOIDLE);
 		}
 		omap_uart_resume_idle(0);
 		omap_uart_resume_idle(1);