From patchwork Sat Jan 21 16:31:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Keeping X-Patchwork-Id: 9530405 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 781B16020B for ; Sat, 21 Jan 2017 16:33:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 69A9A28119 for ; Sat, 21 Jan 2017 16:33:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5D1172842E; Sat, 21 Jan 2017 16:33:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RCVD_IN_SORBS_SPAM,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F306C28119 for ; Sat, 21 Jan 2017 16:33:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 009056E2D1; Sat, 21 Jan 2017 16:32:28 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from metanate.com (dougal.metanate.com [90.155.101.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id B21156E297 for ; Sat, 21 Jan 2017 16:32:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=simple/simple; d=metanate.com; s=stronger; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=DGFDWno3Q387obUsMTGyr2pXnkNc2Q/m8R1M48SckCQ=; b=DJ9aC2vsTVUsYurajvTCy7QMdnhzORZ5E/wNh6MbaOD5dWNoaEtTDkwdTBF6zTR8Nem+KALKw/Uvcy1IJNvHOVcg55w4Tp6Xd4/sTpWqStfn8necFXxcNcJ0vBe23CCuCv4O1VmtQBk8EmOCOCaqAs7FUQgx1KSxma4O1VNlPZI+AZfabOHxjwhp7oYiuC/LfEPVUDvA/YXI/utWqHijPWXjKOZHt4c/f0qiISRoD8x6YhWnjOZVdOLZi8Xb51FowDvWcxIrvNifDKZbY0FHpf4LjKb8RgBRqyn1ualTuW6jh1OWToS95MLlSYDBNnoYneKBGlNIcI+cEzB6Tz9BOw==; Received: from johnkeeping.plus.com ([81.174.171.191] helo=localhost.localdomain) by shrek.metanate.com with esmtpsa (TLSv1.2:DHE-RSA-AES128-GCM-SHA256:128) (Exim 4.83_RC2) (envelope-from ) id 1cUya2-0004rJ-O3; Sat, 21 Jan 2017 16:31:54 +0000 From: John Keeping To: Mark Yao Subject: [PATCH v2 16/26] drm/rockchip: dw-mipi-dsi: configure bias and bandgap before enable Date: Sat, 21 Jan 2017 16:31:18 +0000 Message-Id: <20170121163128.22240-17-john@metanate.com> X-Mailer: git-send-email 2.11.0.197.gb556de5.dirty In-Reply-To: <20170121163128.22240-1-john@metanate.com> References: <20170121163128.22240-1-john@metanate.com> Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, Chris Zhong , linux-arm-kernel@lists.infradead.org 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: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP We should configure these functions before enabling them. Signed-off-by: John Keeping --- Unchanged in v2 --- drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 5b3068e9e8db..ce1e6f9a2041 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -420,6 +420,11 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) dw_mipi_dsi_phy_write(dsi, 0x18, LOOP_DIV_HIGH_SEL(dsi->feedback_div) | HIGH_PROGRAM_EN); + dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN | + BIASEXTR_SEL(BIASEXTR_127_7)); + dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN | + BANDGAP_SEL(BANDGAP_96_10)); + dw_mipi_dsi_phy_write(dsi, 0x20, POWER_CONTROL | INTERNAL_REG_CURRENT | BIAS_BLOCK_ON | BANDGAP_ON); @@ -429,10 +434,6 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) SETRD_MAX | POWER_MANAGE | TER_RESISTORS_ON); - dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN | - BIASEXTR_SEL(BIASEXTR_127_7)); - dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN | - BANDGAP_SEL(BANDGAP_96_10)); dw_mipi_dsi_phy_write(dsi, 0x70, TLP_PROGRAM_EN | 0xf); dw_mipi_dsi_phy_write(dsi, 0x71, THS_PRE_PROGRAM_EN | 0x55);