From patchwork Mon Jul 7 13:05:29 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vikas Sajjan X-Patchwork-Id: 4494731 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A11609F392 for ; Mon, 7 Jul 2014 13:08:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D1E32202FF for ; Mon, 7 Jul 2014 13:08:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5340202E6 for ; Mon, 7 Jul 2014 13:08:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752785AbaGGNIm (ORCPT ); Mon, 7 Jul 2014 09:08:42 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:46828 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752807AbaGGNIl (ORCPT ); Mon, 7 Jul 2014 09:08:41 -0400 Received: from epcpsbgr3.samsung.com (u143.gpu120.samsung.co.kr [203.254.230.143]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N8C00DLEF6FZK40@mailout3.samsung.com> for linux-samsung-soc@vger.kernel.org; Mon, 07 Jul 2014 22:08:39 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.126]) by epcpsbgr3.samsung.com (EPCPMTA) with SMTP id 49.58.14704.7DB9AB35; Mon, 07 Jul 2014 22:08:39 +0900 (KST) X-AuditID: cbfee68f-b7fef6d000003970-91-53ba9bd771ad Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 1C.17.05196.7DB9AB35; Mon, 07 Jul 2014 22:08:39 +0900 (KST) Received: from chromebld-server.sisodomain.com ([107.108.73.106]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N8C00C2VF59IW30@mmp1.samsung.com>; Mon, 07 Jul 2014 22:08:39 +0900 (KST) From: Vikas Sajjan To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: kgene.kim@samsung.com, tomasz.figa@gmail.com, joshi@samsung.com, sajjan.linux@gmail.com, dianders@chromium.org, Vikas Sajjan , Abhilash Kesavan Subject: [PATCH v6 4/4] clk: samsung: exynos5420: Setup clocks before system suspend Date: Mon, 07 Jul 2014 18:35:29 +0530 Message-id: <1404738329-511-1-git-send-email-vikas.sajjan@samsung.com> X-Mailer: git-send-email 1.7.9.5 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrKLMWRmVeSWpSXmKPExsWyRsSkTvf67F3BBnv71C0er1nMZHF22UE2 i++7vrBb9C64ymax6fE1VosZ5/cxWTw5/JHVYtWuP4wWN59tZ3Lg9JjdcJHFY+esu+wem5fU e/RtWcXo8XmTXABrFJdNSmpOZllqkb5dAlfG0RndbAVTpCpmz7vM0sC4U7SLkZNDQsBEor/h ADuELSZx4d56ti5GLg4hgaWMEjtf7WOBKfrU0s4IkVjEKPGi8z1Yh5DABCaJW3fMQGw2AV2J FaeeA3VzcIgIeEssv6YIEmYWOM0o0dpjCmILC4RJXNm/nBXEZhFQlWg5s4YZxOYVcJO48eoO WKuEgILEnEk2IKskBPrZJU68nswMUS8g8W3yIRaIGlmJTQeYIU6TlDi44gbLBEbBBYwMqxhF UwuSC4qT0ouM9YoTc4tL89L1kvNzNzECg/j0v2f9OxjvHrA+xJgMNG4is5Rocj4wCvJK4g2N zYwsTE1MjY3MLc1IE1YS573/MClISCA9sSQ1OzW1ILUovqg0J7X4ECMTB6dUA6OS5bvjT9UO LZFMN0ku8pTQkF+TOOHRTWZRn4a1G8V6VXffXf4/MHPFnKPz5GTyOFbev5mdLslV9f7jhMOX SiIvBzx+zfFMcMal57qWgh4FnlqTa7nZbp7fkOPHLd6Vsyh5v/P8gmBu5i6280Lyy74Y3mso NFV4zKS2jrs1x66RQ/3W0b1cKUosxRmJhlrMRcWJAB9Zuk54AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprCIsWRmVeSWpSXmKPExsVy+t9jAd3rs3cFG6w4J2fxeM1iJouzyw6y WXzf9YXdonfBVTaLTY+vsVrMOL+PyeLJ4Y+sFqt2/WG0uPlsO5MDp8fshossHjtn3WX32Lyk 3qNvyypGj8+b5AJYoxoYbTJSE1NSixRS85LzUzLz0m2VvIPjneNNzQwMdQ0tLcyVFPISc1Nt lVx8AnTdMnOADlJSKEvMKQUKBSQWFyvp22GaEBripmsB0xih6xsSBNdjZIAGEtYwZhyd0c1W MEWqYva8yywNjDtFuxg5OSQETCQ+tbQzQthiEhfurWfrYuTiEBJYxCjxovM9O0hCSGACk8St O2YgNpuArsSKU8+Bijg4RAS8JZZfUwQJMwucZpRo7TEFsYUFwiSu7F/OCmKzCKhKtJxZwwxi 8wq4Sdx4dQesVUJAQWLOJJsJjNwLGBlWMYqmFiQXFCel5xrpFSfmFpfmpesl5+duYgTHyDPp HYyrGiwOMQpwMCrx8B5YtTNYiDWxrLgy9xCjBAezkgjv9PhdwUK8KYmVValF+fFFpTmpxYcY TYGWT2SWEk3OB8ZvXkm8obGJuamxqaWJhYmZpZI478FW60AhgfTEktTs1NSC1CKYPiYOTqkG xgRecdVnMvlFZ5+WNrbE/Ne6zdCUc2hJ7D+DsLd3W9L81hybtP5ESFai4onwZfUHRNUqP2m1 LX5v906tI8n0tvjW1EczNzq1Cxm/bPYoW/JR0OfD7tbppyYumrc4gHu+eT3zdRG902eXxXWX nK5xMm9aWrxfPz/miNqBA1s+tz2eGup93LuFWYmlOCPRUIu5qDgRABSvP2qnAgAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Prior to suspending the system, we need to ensure that certain clock source and gate registers are unmasked. while at it, add these clks to save/restore list also. Signed-off-by: Vikas Sajjan Signed-off-by: Abhilash Kesavan --- drivers/clk/samsung/clk-exynos5420.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 9d7d7ee..7e87d7c 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -28,6 +28,7 @@ #define GATE_BUS_CPU 0x700 #define GATE_SCLK_CPU 0x800 #define CLKOUT_CMU_CPU 0xa00 +#define SRC_MASK_CPERI 0x4300 #define GATE_IP_G2D 0x8800 #define CPLL_LOCK 0x10020 #define DPLL_LOCK 0x10030 @@ -70,6 +71,8 @@ #define SRC_TOP11 0x10284 #define SRC_TOP12 0x10288 #define SRC_TOP13 0x1028c /* 5800 specific */ +#define SRC_MASK_TOP0 0x10300 +#define SRC_MASK_TOP1 0x10304 #define SRC_MASK_TOP2 0x10308 #define SRC_MASK_TOP7 0x1031c #define SRC_MASK_DISP10 0x1032c @@ -77,6 +80,7 @@ #define SRC_MASK_FSYS 0x10340 #define SRC_MASK_PERIC0 0x10350 #define SRC_MASK_PERIC1 0x10354 +#define SRC_MASK_ISP 0x10370 #define DIV_TOP0 0x10500 #define DIV_TOP1 0x10504 #define DIV_TOP2 0x10508 @@ -98,6 +102,7 @@ #define DIV2_RATIO0 0x10590 #define DIV4_RATIO 0x105a0 #define GATE_BUS_TOP 0x10700 +#define GATE_BUS_DISP1 0x10728 #define GATE_BUS_GEN 0x1073c #define GATE_BUS_FSYS0 0x10740 #define GATE_BUS_FSYS2 0x10748 @@ -190,6 +195,10 @@ static unsigned long exynos5x_clk_regs[] __initdata = { SRC_MASK_FSYS, SRC_MASK_PERIC0, SRC_MASK_PERIC1, + SRC_MASK_TOP0, + SRC_MASK_TOP1, + SRC_MASK_MAU, + SRC_MASK_ISP, SRC_ISP, DIV_TOP0, DIV_TOP1, @@ -208,6 +217,7 @@ static unsigned long exynos5x_clk_regs[] __initdata = { SCLK_DIV_ISP1, DIV2_RATIO0, DIV4_RATIO, + GATE_BUS_DISP1, GATE_BUS_TOP, GATE_BUS_GEN, GATE_BUS_FSYS0, @@ -249,6 +259,22 @@ static unsigned long exynos5800_clk_regs[] __initdata = { GATE_IP_CAM, }; +static const struct samsung_clk_reg_dump exynos5420_set_clksrc[] = { + { .offset = SRC_MASK_CPERI, .value = 0xffffffff, }, + { .offset = SRC_MASK_TOP0, .value = 0x11111111, }, + { .offset = SRC_MASK_TOP1, .value = 0x11101111, }, + { .offset = SRC_MASK_TOP2, .value = 0x11111110, }, + { .offset = SRC_MASK_TOP7, .value = 0x00111100, }, + { .offset = SRC_MASK_DISP10, .value = 0x11111110, }, + { .offset = SRC_MASK_MAU, .value = 0x10000000, }, + { .offset = SRC_MASK_FSYS, .value = 0x11111110, }, + { .offset = SRC_MASK_PERIC0, .value = 0x11111110, }, + { .offset = SRC_MASK_PERIC1, .value = 0x11111100, }, + { .offset = SRC_MASK_ISP, .value = 0x11111000, }, + { .offset = GATE_BUS_DISP1, .value = 0xffffffff, }, + { .offset = GATE_IP_PERIC, .value = 0xffffffff, }, +}; + static int exynos5420_clk_suspend(void) { samsung_clk_save(reg_base, exynos5x_save, @@ -258,6 +284,9 @@ static int exynos5420_clk_suspend(void) samsung_clk_save(reg_base, exynos5800_save, ARRAY_SIZE(exynos5800_clk_regs)); + samsung_clk_restore(reg_base, exynos5420_set_clksrc, + ARRAY_SIZE(exynos5420_set_clksrc)); + return 0; }