From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756299AbaEEK7M (ORCPT ); Mon, 5 May 2014 06:59:12 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:58113 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756228AbaEEK7J (ORCPT ); Mon, 5 May 2014 06:59:09 -0400 X-AuditID: cbfee61a-b7f2b6d000006c4d-ca-53676efc84c8 From: Bartlomiej Zolnierkiewicz To: Kukjin Kim Cc: Daniel Lezcano , Tomasz Figa , Sachin Kamat , Viresh Kumar , "Rafael J. Wysocki" , Kyungmin Park , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org, b.zolnierkie@samsung.com Subject: [PATCH 3/7] ARM: EXYNOS: add AFTR mode support to firmware do_idle method Date: Mon, 05 May 2014 12:57:15 +0200 Message-id: <1399287439-31376-4-git-send-email-b.zolnierkie@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1399287439-31376-1-git-send-email-b.zolnierkie@samsung.com> References: <1399287439-31376-1-git-send-email-b.zolnierkie@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrKLMWRmVeSWpSXmKPExsVy+t9jAd0/eenBBnMuGVhsnLGe1WLeZ1mL 3gVX2SzONr1ht3h/6BmzxabH11gtLu+aw2bxufcIo8WM8/uYLM6cvsRqcfJPL6PF+hmvWSw2 fvVw4PW4c20Pm8fmJfUet/89ZvbYcrWdxaNvyypGj8+b5ALYorhsUlJzMstSi/TtErgyttzo Zil4xlfx9cJ21gbGCTxdjJwcEgImEpOWLWSHsMUkLtxbz9bFyMUhJLCIUeLfynXMEE4Xk8T8 +xPZQKrYBKwkJravYgSxRQTUJHoWb2UEKWIW2MsssbR7E9goYYEQiTXz17KA2CwCqhIvtv1g ArF5BTwkVt07ALVOUaL72QSwoZwCnhJLNz9mBrGFgGo2vG1nm8DIu4CRYRWjaGpBckFxUnqu oV5xYm5xaV66XnJ+7iZGcGA+k9rBuLLB4hCjAAejEg9vAnN6sBBrYllxZe4hRgkOZiUR3uxE oBBvSmJlVWpRfnxRaU5q8SFGaQ4WJXHeA63WgUIC6YklqdmpqQWpRTBZJg5OqQbGzSF/XDZZ WzM9iLbcdPCxZ/cfz4bp95//3tPFcvzMzE9/3tZW990I+X7x3rSzfh3+Eza8Wc3StSX65Son vp3RQvUvnVI0v88LUTk+ZcWZk5JTeFnfPJWtPP6kNmr97vDkDrOPcyO9rA6/kfIzkmxYJvTC 7kz2hs6/9e925R/92tRgOOl39N5PskosxRmJhlrMRcWJAE873s9IAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On some platforms (i.e. EXYNOS ones) more than one idle mode is available and we need to distinguish them in firmware do_idle method. Add mode parameter to do_idle firmware method and AFTR mode support to EXYNOS do_idle implementation. This change is a preparation for adding secure firmware support to EXYNOS cpuidle driver. This patch shouldn't cause any functionality changes (please note that do_idle firmware method is unused currently). Signed-off-by: Bartlomiej Zolnierkiewicz --- arch/arm/include/asm/firmware.h | 7 ++++++- arch/arm/mach-exynos/firmware.c | 10 ++++++++-- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h index 70883c7..63989c3 100644 --- a/arch/arm/include/asm/firmware.h +++ b/arch/arm/include/asm/firmware.h @@ -28,7 +28,7 @@ struct firmware_ops { /* * Enters CPU idle mode */ - int (*do_idle)(void); + int (*do_idle)(int mode); /* * Sets boot address of specified physical CPU */ @@ -47,6 +47,11 @@ struct firmware_ops { int (*c15resume)(u32 *regs); }; +enum { + FW_DO_IDLE_NORMAL, + FW_DO_IDLE_AFTR, +}; + /* Global pointer for current firmware_ops structure, can't be NULL. */ extern const struct firmware_ops *firmware_ops; diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 581c7bf..71fe169 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -20,9 +20,15 @@ #include "smc.h" -static int exynos_do_idle(void) +static int exynos_do_idle(int mode) { - exynos_smc(SMC_CMD_SLEEP, 0, 0, 0); + switch (mode) { + case FW_DO_IDLE_AFTR: + exynos_smc(SMC_CMD_CPU0AFTR, 0, 0, 0); + break; + case FW_DO_IDLE_NORMAL: + exynos_smc(SMC_CMD_SLEEP, 0, 0, 0); + } return 0; } -- 1.8.2.3