From patchwork Wed Jun 26 15:02:25 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 2786061 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 43BA49F245 for ; Wed, 26 Jun 2013 15:05:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0CD08205A2 for ; Wed, 26 Jun 2013 15:05:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 208422059F for ; Wed, 26 Jun 2013 15:05:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751729Ab3FZPFm (ORCPT ); Wed, 26 Jun 2013 11:05:42 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:26793 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751795Ab3FZPFi (ORCPT ); Wed, 26 Jun 2013 11:05:38 -0400 Received: from epcpsbgm2.samsung.com (epcpsbgm2 [203.254.230.27]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MP0006E69X0GT30@mailout3.samsung.com>; Thu, 27 Jun 2013 00:05:37 +0900 (KST) X-AuditID: cbfee61b-b7f8e6d00000524c-11-51cb0341f5e9 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id B4.55.21068.1430BC15; Thu, 27 Jun 2013 00:05:37 +0900 (KST) Received: from amdc1344.digital.local ([106.116.147.32]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MP000KGO9S4RV50@mmp1.samsung.com>; Thu, 27 Jun 2013 00:05:37 +0900 (KST) From: Sylwester Nawrocki To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: kishon@ti.com, linux-media@vger.kernel.org, kyungmin.park@samsung.com, balbi@ti.com, t.figa@samsung.com, devicetree-discuss@lists.ozlabs.org, kgene.kim@samsung.com, dh09.lee@samsung.com, jg1.han@samsung.com, inki.dae@samsung.com, plagnioj@jcrosoft.com, linux-fbdev@vger.kernel.org, Sylwester Nawrocki Subject: [PATCH v3 4/5] exynos4-is: Use the generic MIPI CSIS PHY driver Date: Wed, 26 Jun 2013 17:02:25 +0200 Message-id: <1372258946-15607-5-git-send-email-s.nawrocki@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1372258946-15607-1-git-send-email-s.nawrocki@samsung.com> References: <1372258946-15607-1-git-send-email-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDLMWRmVeSWpSXmKPExsVy+t9jAV1H5tOBBh3ntC0O3q+3ODD7IavF 9fN2FpPuT2CxuLzwEqtF74KrbBYXnvawWZxtesNusenxNVaLE30fWC16NmxltZhxfh+TxbqH L5gsDr9pZ7VYP+M1iwO/x6sLd1g8Ni+p9zg/YyGjR9+WVYwex29sZ/L4vEkugC2KyyYlNSez LLVI3y6BK6P3/0fmglMKFatmXmRsYDwj1cXIySEhYCKx89dSNghbTOLCvfVANheHkMAiRokr B6YxgySEBDqYJK7e4wKx2QQMJXqP9jF2MXJwiAh4Syy/pghSzyxwkUni9N53YIOEBTwkbs5s YAexWQRUJQ5dnQZm8wq4Sczc9I8ZpFdCQEFiziQbkDCngLvE9Z7T7BCr3CTmNJ5lnsDIu4CR YRWjaGpBckFxUnqukV5xYm5xaV66XnJ+7iZGcJg+k97BuKrB4hCjAAejEg/vB8bTgUKsiWXF lbmHGCU4mJVEeN/MPxUoxJuSWFmVWpQfX1Sak1p8iFGag0VJnPdgq3WgkEB6YklqdmpqQWoR TJaJg1OqgTE2fP07xX8ZQavnNlh/7bnio6yse8d//wzPxOyKBdcjFArVt+sHKJXqJ019whpn 1/D4BouP5Y07+6NYmY/tLTxiJv2oOIbfju2fs4cFR+K8dP9HWxXj787f+71px0H7G4+fPEzV 79r5+1/L3tc25nKmf+bqBt5++HPhIp7G+G/VMcKShSkrTyqxFGckGmoxFxUnAgDFfLT9TwIA AA== 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=-8.2 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 Use the generic PHY API instead of the platform callback to control the MIPI CSIS DPHY. The 'phy_label' field is added to the platform data structure to allow PHY lookup on non-dt platforms Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Acked-by: Felipe Balbi --- drivers/media/platform/exynos4-is/mipi-csis.c | 16 +++++++++++++--- include/linux/platform_data/mipi-csis.h | 11 ++--------- 2 files changed, 15 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c index a2eda9d..8436254 100644 --- a/drivers/media/platform/exynos4-is/mipi-csis.c +++ b/drivers/media/platform/exynos4-is/mipi-csis.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -167,6 +168,7 @@ struct csis_pktbuf { * @sd: v4l2_subdev associated with CSIS device instance * @index: the hardware instance index * @pdev: CSIS platform device + * @phy: pointer to the CSIS generic PHY * @regs: mmaped I/O registers memory * @supplies: CSIS regulator supplies * @clock: CSIS clocks @@ -189,6 +191,8 @@ struct csis_state { struct v4l2_subdev sd; u8 index; struct platform_device *pdev; + struct phy *phy; + const char *phy_label; void __iomem *regs; struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES]; struct clk *clock[NUM_CSIS_CLOCKS]; @@ -726,6 +730,7 @@ static int s5pcsis_get_platform_data(struct platform_device *pdev, state->index = max(0, pdev->id); state->max_num_lanes = state->index ? CSIS1_MAX_LANES : CSIS0_MAX_LANES; + state->phy_label = pdata->phy_label; return 0; } @@ -763,8 +768,9 @@ static int s5pcsis_parse_dt(struct platform_device *pdev, "samsung,csis-wclk"); state->num_lanes = endpoint.bus.mipi_csi2.num_data_lanes; - of_node_put(node); + + state->phy_label = "csis"; return 0; } #else @@ -800,6 +806,10 @@ static int s5pcsis_probe(struct platform_device *pdev) return -EINVAL; } + state->phy = devm_phy_get(dev, state->phy_label); + if (IS_ERR(state->phy)) + return PTR_ERR(state->phy); + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); state->regs = devm_ioremap_resource(dev, mem_res); if (IS_ERR(state->regs)) @@ -893,7 +903,7 @@ static int s5pcsis_pm_suspend(struct device *dev, bool runtime) mutex_lock(&state->lock); if (state->flags & ST_POWERED) { s5pcsis_stop_stream(state); - ret = s5p_csis_phy_enable(state->index, false); + ret = phy_power_off(state->phy); if (ret) goto unlock; ret = regulator_bulk_disable(CSIS_NUM_SUPPLIES, @@ -929,7 +939,7 @@ static int s5pcsis_pm_resume(struct device *dev, bool runtime) state->supplies); if (ret) goto unlock; - ret = s5p_csis_phy_enable(state->index, true); + ret = phy_power_on(state->phy); if (!ret) { state->flags |= ST_POWERED; } else { diff --git a/include/linux/platform_data/mipi-csis.h b/include/linux/platform_data/mipi-csis.h index bf34e17..9214317 100644 --- a/include/linux/platform_data/mipi-csis.h +++ b/include/linux/platform_data/mipi-csis.h @@ -17,21 +17,14 @@ * @wclk_source: CSI wrapper clock selection: 0 - bus clock, 1 - ext. SCLK_CAM * @lanes: number of data lanes used * @hs_settle: HS-RX settle time + * @phy_label: the generic PHY label */ struct s5p_platform_mipi_csis { unsigned long clk_rate; u8 wclk_source; u8 lanes; u8 hs_settle; + const char *phy_label; }; -/** - * s5p_csis_phy_enable - global MIPI-CSI receiver D-PHY control - * @id: MIPI-CSIS harware instance index (0...1) - * @on: true to enable D-PHY and deassert its reset - * false to disable D-PHY - * @return: 0 on success, or negative error code on failure - */ -int s5p_csis_phy_enable(int id, bool on); - #endif /* __PLAT_SAMSUNG_MIPI_CSIS_H_ */