From patchwork Wed May 18 15:01:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 9120291 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 713909F37F for ; Wed, 18 May 2016 15:03:17 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7B7A220364 for ; Wed, 18 May 2016 15:03:16 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id A4F202035B for ; Wed, 18 May 2016 15:03:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 842AB6E339; Wed, 18 May 2016 15:03:11 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from bear.ext.ti.com (bear.ext.ti.com [198.47.19.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1BD536E35E for ; Wed, 18 May 2016 15:01:55 +0000 (UTC) Received: from dflxv15.itg.ti.com ([128.247.5.124]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id u4IF1pwX022195; Wed, 18 May 2016 10:01:51 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id u4IF1pAh012052; Wed, 18 May 2016 10:01:51 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.294.0; Wed, 18 May 2016 10:01:51 -0500 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id u4IF1W8P018729; Wed, 18 May 2016 10:01:50 -0500 From: Tomi Valkeinen To: , Laurent Pinchart Subject: [PATCH 13/24] drm/omap: add PLL helper funcs Date: Wed, 18 May 2016 18:01:15 +0300 Message-ID: <1463583686-24964-14-git-send-email-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1463583686-24964-1-git-send-email-tomi.valkeinen@ti.com> References: <1463583686-24964-1-git-send-email-tomi.valkeinen@ti.com> MIME-Version: 1.0 Cc: Tomi Valkeinen X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-5.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 Add two PLL helper functions: dss_pll_find_by_src() which returns the dss_pll for the given dss_clk_source. dss_pll_get_clkout_idx_for_src() which returns the clkout index for the given dss_clk_source. Signed-off-by: Tomi Valkeinen --- drivers/gpu/drm/omapdrm/dss/dss.h | 2 ++ drivers/gpu/drm/omapdrm/dss/pll.c | 53 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+) diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h index 1ef53bbdddea..57ee26e5d1cd 100644 --- a/drivers/gpu/drm/omapdrm/dss/dss.h +++ b/drivers/gpu/drm/omapdrm/dss/dss.h @@ -428,6 +428,8 @@ typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc, int dss_pll_register(struct dss_pll *pll); void dss_pll_unregister(struct dss_pll *pll); struct dss_pll *dss_pll_find(const char *name); +struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src); +unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src); int dss_pll_enable(struct dss_pll *pll); void dss_pll_disable(struct dss_pll *pll); int dss_pll_set_config(struct dss_pll *pll, diff --git a/drivers/gpu/drm/omapdrm/dss/pll.c b/drivers/gpu/drm/omapdrm/dss/pll.c index f974ddcd3b6e..c93233ed3601 100644 --- a/drivers/gpu/drm/omapdrm/dss/pll.c +++ b/drivers/gpu/drm/omapdrm/dss/pll.c @@ -76,6 +76,59 @@ struct dss_pll *dss_pll_find(const char *name) return NULL; } +struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src) +{ + struct dss_pll *pll; + + switch (src) { + default: + case DSS_CLK_SRC_FCK: + return NULL; + + case DSS_CLK_SRC_HDMI_PLL: + return dss_pll_find("hdmi"); + + case DSS_CLK_SRC_PLL1_1: + case DSS_CLK_SRC_PLL1_2: + case DSS_CLK_SRC_PLL1_3: + pll = dss_pll_find("dsi0"); + if (!pll) + pll = dss_pll_find("video0"); + return pll; + + case DSS_CLK_SRC_PLL2_1: + case DSS_CLK_SRC_PLL2_2: + case DSS_CLK_SRC_PLL2_3: + pll = dss_pll_find("dsi1"); + if (!pll) + pll = dss_pll_find("video1"); + return pll; + } +} + +unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src) +{ + switch (src) { + case DSS_CLK_SRC_HDMI_PLL: + return 0; + + case DSS_CLK_SRC_PLL1_1: + case DSS_CLK_SRC_PLL2_1: + return 0; + + case DSS_CLK_SRC_PLL1_2: + case DSS_CLK_SRC_PLL2_2: + return 1; + + case DSS_CLK_SRC_PLL1_3: + case DSS_CLK_SRC_PLL2_3: + return 2; + + default: + return 0; + } +} + int dss_pll_enable(struct dss_pll *pll) { int r;