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received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: Csapf3tNHVgnLXfF4uobOhlOg7qTnSl56wgEvdPwsmQXF9xXQretvosl2YMoj2jTdosH5mndVJbYiVRteDxIdNV57Jhb3ouJGP/S5cfniyppJ3Wu+cIiT2m+1yhmrQ6uwwSeJkJvWSvycHE8diVB73BOX44bOtcHhIZ5lcAXwY4UJ8oTvW1lXWBmgNiwD7b7JBQsrNDK9fPawsjJzn92HuriaXWp8/qp98BaWk8/1tVvCo6SmUFYy+FPmralpozJeRgYYy2AjgdUBKcAwDlgTwb8HaIPlSZwNgu0N8ds8uxCTjmIFgmmcb2cIibam/mpW++hODIhfqPg3JiRjLV/FAq3KO8XRcFNEYfHNJE8/Nbpw/Qe69i8JxOId+VpVTQMvGkOUMk3TrXguCyrs3M78Ssfnd9yHPUHTeQ4304bZvo= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 83a06ccd-b288-4d9a-18e7-08d69294ca05 X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Feb 2019 15:55:02.3410 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR11MB1472 X-OriginatorOrg: microchip.com Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.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_suspen= d.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 =20 /* - * 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) =20 wait_mckrdy =20 - /* 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 =20 - /* 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: --=20 2.7.4