From patchwork Thu Nov 5 12:03:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11884069 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7276F15E6 for ; Thu, 5 Nov 2020 12:05:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 48C8E20A8B for ; Thu, 5 Nov 2020 12:05:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="qNQq6e3k" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730744AbgKEMFB (ORCPT ); Thu, 5 Nov 2020 07:05:01 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:46412 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730727AbgKEMFA (ORCPT ); Thu, 5 Nov 2020 07:05:00 -0500 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0A5C4q2n070198; Thu, 5 Nov 2020 06:04:52 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1604577892; bh=bUCQSIAfkR31XW3D81fZ9TD956r790n3MBxFmYcYq64=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=qNQq6e3kZRIydqx7OPK6Df4aa4ujxFS/jof2SDTeegJpiP+wyZxusIDvy6Cqva3Bu Lcc9q4FHr1qcNqLoQeSxYRZePZwT6Gg08p4ijzw+DHlyO4IhFdlf3zMZVbs/35fKbd D/hLAbJstwIU3i6gZk401W85RzA6XRbwFPqSxRVA= Received: from DLEE108.ent.ti.com (dlee108.ent.ti.com [157.170.170.38]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0A5C4q7g072357 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 5 Nov 2020 06:04:52 -0600 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Thu, 5 Nov 2020 06:04:52 -0600 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Thu, 5 Nov 2020 06:04:52 -0600 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0A5C3rfL039111; Thu, 5 Nov 2020 06:04:50 -0600 From: Tomi Valkeinen To: Sebastian Reichel , Laurent Pinchart , Nikhil Devshatwar , , CC: Sekhar Nori , Tony Lindgren , "H . Nikolaus Schaller" , Sebastian Reichel , Tomi Valkeinen Subject: [PATCH v3 23/56] drm/omap: panel-dsi-cm: use bulk regulator API Date: Thu, 5 Nov 2020 14:03:00 +0200 Message-ID: <20201105120333.947408-24-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201105120333.947408-1-tomi.valkeinen@ti.com> References: <20201105120333.947408-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Sebastian Reichel Use bulk regulator API to simplify the code. This also switches from _optional variant to normal variant, which will provide a dummy regulator (i.e. if some always-enabled regulator is not described in DT). Signed-off-by: Sebastian Reichel Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- .../gpu/drm/omapdrm/displays/panel-dsi-cm.c | 65 ++++++------------- 1 file changed, 21 insertions(+), 44 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 2e9de33fc8d4..1e742cf798b6 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -32,6 +32,8 @@ #define DCS_GET_ID2 0xdb #define DCS_GET_ID3 0xdc +#define DCS_REGULATOR_SUPPLY_NUM 2 + struct panel_drv_data { struct mipi_dsi_device *dsi; @@ -54,8 +56,7 @@ struct panel_drv_data { struct gpio_desc *reset_gpio; struct gpio_desc *ext_te_gpio; - struct regulator *vpnl; - struct regulator *vddi; + struct regulator_bulk_data supplies[DCS_REGULATOR_SUPPLY_NUM]; bool use_dsi_backlight; @@ -557,28 +558,16 @@ static int dsicm_power_on(struct panel_drv_data *ddata) .lp_clk_max = 10000000, }; - if (ddata->vpnl) { - r = regulator_enable(ddata->vpnl); - if (r) { - dev_err(&ddata->dsi->dev, - "failed to enable VPNL: %d\n", r); - return r; - } - } - - if (ddata->vddi) { - r = regulator_enable(ddata->vddi); - if (r) { - dev_err(&ddata->dsi->dev, - "failed to enable VDDI: %d\n", r); - goto err_vpnl; - } + r = regulator_bulk_enable(DCS_REGULATOR_SUPPLY_NUM, ddata->supplies); + if (r) { + dev_err(&ddata->dsi->dev, "failed to enable supplies: %d\n", r); + return r; } r = src->ops->dsi.set_config(src, &dsi_config); if (r) { dev_err(&ddata->dsi->dev, "failed to configure DSI\n"); - goto err_vddi; + goto err_regulators; } src->ops->enable(src); @@ -637,12 +626,10 @@ static int dsicm_power_on(struct panel_drv_data *ddata) dsicm_hw_reset(ddata); src->ops->dsi.disable(src, true, false); -err_vddi: - if (ddata->vddi) - regulator_disable(ddata->vddi); -err_vpnl: - if (ddata->vpnl) - regulator_disable(ddata->vpnl); +err_regulators: + r = regulator_bulk_disable(DCS_REGULATOR_SUPPLY_NUM, ddata->supplies); + if (r) + dev_err(&ddata->dsi->dev, "failed to disable supplies: %d\n", r); return r; } @@ -666,10 +653,9 @@ static void dsicm_power_off(struct panel_drv_data *ddata) src->ops->dsi.disable(src, true, false); - if (ddata->vddi) - regulator_disable(ddata->vddi); - if (ddata->vpnl) - regulator_disable(ddata->vpnl); + r = regulator_bulk_disable(DCS_REGULATOR_SUPPLY_NUM, ddata->supplies); + if (r) + dev_err(&ddata->dsi->dev, "failed to disable supplies: %d\n", r); ddata->enabled = false; } @@ -973,21 +959,12 @@ static int dsicm_probe_of(struct mipi_dsi_device *dsi) ddata->height_mm = 0; of_property_read_u32(node, "height-mm", &ddata->height_mm); - ddata->vpnl = devm_regulator_get_optional(&dsi->dev, "vpnl"); - if (IS_ERR(ddata->vpnl)) { - err = PTR_ERR(ddata->vpnl); - if (err == -EPROBE_DEFER) - return err; - ddata->vpnl = NULL; - } - - ddata->vddi = devm_regulator_get_optional(&dsi->dev, "vddi"); - if (IS_ERR(ddata->vddi)) { - err = PTR_ERR(ddata->vddi); - if (err == -EPROBE_DEFER) - return err; - ddata->vddi = NULL; - } + ddata->supplies[0].supply = "vpnl"; + ddata->supplies[1].supply = "vddi"; + err = devm_regulator_bulk_get(&dsi->dev, DCS_REGULATOR_SUPPLY_NUM, + ddata->supplies); + if (err) + return err; backlight = devm_of_find_backlight(&dsi->dev); if (IS_ERR(backlight))