From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753675AbaHENev (ORCPT ); Tue, 5 Aug 2014 09:34:51 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:64297 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753551AbaHENes (ORCPT ); Tue, 5 Aug 2014 09:34:48 -0400 X-AuditID: cbfee61a-f79e46d00000134f-98-53e0dd76680d 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 v5 2/5] ARM: EXYNOS: add AFTR mode support to firmware do_idle method Date: Tue, 05 Aug 2014 15:34:23 +0200 Message-id: <1407245666-20016-3-git-send-email-b.zolnierkie@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1407245666-20016-1-git-send-email-b.zolnierkie@samsung.com> References: <1407245666-20016-1-git-send-email-b.zolnierkie@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrKLMWRmVeSWpSXmKPExsVy+t9jAd2yuw+CDfZ/sbHYOGM9q8W8z7IW vQuuslmcbXrDbvH+0DNmi02Pr7FaXN41h83ic+8RRosZ5/cxWZw5fYnV4uSfXkaL9TNes1hs /OrhwOtx59oeNo/NS+o9bv97zOyx5Wo7i0ffllWMHp83yQWwRXHZpKTmZJalFunbJXBltKzd z1awR7DibtsdxgbGs3xdjJwcEgImEs1d3cwQtpjEhXvr2boYuTiEBBYxSpzY28MO4XQxSXw7 s54RpIpNwEpiYvsqMFtEQE2iZ/FWRpAiZoG9zBJLuzexgySEBcIl/vTvZgWxWQRUJc48/Qu2 glfAQ+LpjQ1MEOsUJbqfTWADsTkFPCUarz0DqxECqtl8ZTfTBEbeBYwMqxhFUwuSC4qT0nMN 9YoTc4tL89L1kvNzNzGCA/OZ1A7GlQ0WhxgFOBiVeHgF1O4HC7EmlhVX5h5ilOBgVhLhZb/9 IFiINyWxsiq1KD++qDQntfgQozQHi5I474FW60AhgfTEktTs1NSC1CKYLBMHp1QD48Yk3Sx5 NsePTfkqPxjNtl1KeXO5Ybq0y84H3BJfXzY3LPV0zz/8dr2bioXSoe9MK9qfdJXGZH1Kk+Nf 3+P3cM1CQ4fG9P2fp7a4TZnrHsA+a2LIGgXx6xFxf4OzpOY4rtA5/tXNt1rgY50U49Nlh28q z07g4cg7Zic/LVK70rPu15GEVN90JZbijERDLeai4kQAx4IkN0gCAAA= 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 Acked-by: Kyungmin Park --- arch/arm/include/asm/firmware.h | 2 +- arch/arm/mach-exynos/common.h | 5 +++++ arch/arm/mach-exynos/firmware.c | 10 ++++++++-- 3 files changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h index 5904f59..89aefe1 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)(unsigned long mode); /* * Sets boot address of specified physical CPU */ diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index c218200..2d830df 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -119,6 +119,11 @@ extern void __iomem *sysram_base_addr; extern void __iomem *pmu_base_addr; void exynos_sysram_init(void); +enum { + FW_DO_IDLE_SLEEP, + FW_DO_IDLE_AFTR, +}; + void exynos_firmware_init(void); extern u32 exynos_get_eint_wake_mask(void); diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index f5e626d..e57b7c3 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -28,9 +28,15 @@ #define EXYNOS_BOOT_ADDR 0x8 #define EXYNOS_BOOT_FLAG 0xc -static int exynos_do_idle(void) +static int exynos_do_idle(unsigned long 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_SLEEP: + exynos_smc(SMC_CMD_SLEEP, 0, 0, 0); + } return 0; } -- 1.8.2.3