From patchwork Fri Aug 18 19:18:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13358225 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93F72EE4996 for ; Fri, 18 Aug 2023 19:19:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234410AbjHRTTD (ORCPT ); Fri, 18 Aug 2023 15:19:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379594AbjHRTSb (ORCPT ); Fri, 18 Aug 2023 15:18:31 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A8D35CA for ; Fri, 18 Aug 2023 12:18:29 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.01,184,1684767600"; d="scan'208";a="176991800" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 19 Aug 2023 04:18:28 +0900 Received: from localhost.localdomain (unknown [10.226.93.81]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 9084B409B888; Sat, 19 Aug 2023 04:18:24 +0900 (JST) From: Biju Das To: Phong LE , Neil Armstrong , Andrzej Hajda , Robert Foss , David Airlie , Daniel Vetter Cc: Biju Das , Laurent Pinchart , Andy Shevchenko , Jonas Karlman , Jernej Skrabec , dri-devel@lists.freedesktop.org, Geert Uytterhoeven , Prabhakar Mahadev Lad , linux-renesas-soc@vger.kernel.org Subject: [PATCH v3 1/2] drm: bridge: it66121: Extend match support for OF tables Date: Fri, 18 Aug 2023 20:18:16 +0100 Message-Id: <20230818191817.340360-2-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230818191817.340360-1-biju.das.jz@bp.renesas.com> References: <20230818191817.340360-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org The driver has OF match table, still it uses ID lookup table for retrieving match data. Currently the driver is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID. The correct approach is to have an OF device ID table using of_device_match_data() if the devices are registered via OF. Signed-off-by: Biju Das Reviewed-by: Andy Shevchenko Reviewed-by: Laurent Pinchart --- v2->v3: * Removed fixes tag as nothing broken. * Added Rb tag from Andy. v2: * New patch. --- drivers/gpu/drm/bridge/ite-it66121.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index 466641c77fe9..ba95ad46e259 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -1523,7 +1523,10 @@ static int it66121_probe(struct i2c_client *client) ctx->dev = dev; ctx->client = client; - ctx->info = (const struct it66121_chip_info *) id->driver_data; + if (dev_fwnode(&client->dev)) + ctx->info = of_device_get_match_data(&client->dev); + else + ctx->info = (const struct it66121_chip_info *) id->driver_data; of_property_read_u32(ep, "bus-width", &ctx->bus_width); of_node_put(ep); @@ -1609,13 +1612,6 @@ static void it66121_remove(struct i2c_client *client) mutex_destroy(&ctx->lock); } -static const struct of_device_id it66121_dt_match[] = { - { .compatible = "ite,it66121" }, - { .compatible = "ite,it6610" }, - { } -}; -MODULE_DEVICE_TABLE(of, it66121_dt_match); - static const struct it66121_chip_info it66121_chip_info = { .id = ID_IT66121, .vid = 0x4954, @@ -1628,6 +1624,13 @@ static const struct it66121_chip_info it6610_chip_info = { .pid = 0x0611, }; +static const struct of_device_id it66121_dt_match[] = { + { .compatible = "ite,it66121", &it66121_chip_info }, + { .compatible = "ite,it6610", &it6610_chip_info }, + { } +}; +MODULE_DEVICE_TABLE(of, it66121_dt_match); + static const struct i2c_device_id it66121_id[] = { { "it66121", (kernel_ulong_t) &it66121_chip_info }, { "it6610", (kernel_ulong_t) &it6610_chip_info },