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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Claudiu.Beznea@microchip.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Claudiu Beznea There is no need to disable/enable PLLA when switching to one of the ULP modes. The PLLA consumers should take care of this. Signed-off-by: Claudiu Beznea --- arch/arm/mach-at91/pm_suspend.S | 31 ------------------------------- 1 file changed, 31 deletions(-) diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index 5c33023f9129..77e29309cc6e 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -51,15 +51,6 @@ tmp2 .req r5 .endm /* - * Wait until PLLA has locked. - */ - .macro wait_pllalock -1: ldr tmp1, [pmc, #AT91_PMC_SR] - tst tmp1, #AT91_PMC_LOCKA - beq 1b - .endm - -/* * Put the processor to enter the idle state */ .macro at91_cpu_idle @@ -351,14 +342,6 @@ ENTRY(at91_ulp_mode) wait_mckrdy - /* Save PLLA setting and disable it */ - ldr tmp1, [pmc, #AT91_CKGR_PLLAR] - str tmp1, .saved_pllar - - mov tmp1, #AT91_PMC_PLLCOUNT - orr tmp1, tmp1, #(1 << 29) /* bit 29 always set */ - str tmp1, [pmc, #AT91_CKGR_PLLAR] - ldr r0, .pm_mode cmp r0, #AT91_PM_ULP1 beq ulp1_mode @@ -373,18 +356,6 @@ ulp1_mode: ulp_exit: ldr pmc, .pmc_base - /* Restore PLLA setting */ - ldr tmp1, .saved_pllar - str tmp1, [pmc, #AT91_CKGR_PLLAR] - - tst tmp1, #(AT91_PMC_MUL & 0xff0000) - bne 3f - tst tmp1, #(AT91_PMC_MUL & ~0xff0000) - beq 4f -3: - wait_pllalock -4: - /* * Restore master clock setting */ @@ -537,8 +508,6 @@ ENDPROC(at91_sramc_self_refresh) .word 0 .saved_mckr: .word 0 -.saved_pllar: - .word 0 .saved_sam9_lpr: .word 0 .saved_sam9_lpr1: -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel