From nobody Sun May 5 02:21:36 2024 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 CFE1EC76195 for ; Fri, 24 Mar 2023 22:58:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231520AbjCXW6z (ORCPT ); Fri, 24 Mar 2023 18:58:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50148 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229943AbjCXW6w (ORCPT ); Fri, 24 Mar 2023 18:58:52 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9233F1C5B3 for ; Fri, 24 Mar 2023 15:58:51 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 2C350B8262C for ; Fri, 24 Mar 2023 22:58:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40A66C433D2; Fri, 24 Mar 2023 22:58:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679698728; bh=6DOB3pAoTnkvCSogv9KXyamFR2xytgfPyfRl68Nbriw=; h=From:Date:Subject:To:Cc:From; b=NCQFjTMfX151yVLZyjAfgm7zE45z1leoGT1t9ygLS4JkVHJbM+zi1gB4rF4RbCYOq cHtiBLj0ChzZHBf8Olay9uou6GAZ2KeSC0Ka2+iJC7OpKTQXS0ZV9Iz9zpvrtpftvr 5C4XNMBicFGXVxHkgJn7KLT27vsHqkJlrGwZ8mQKg9bt00N3Rgt3R4UM1/DgYMYam8 Nt3M2d3sxoAxvCQWN6YSuyG8dOInq60CBRMUdiwZM/wqgcFI9JTORkXz1yXAQnKPAb 3djVi8vfAuuN7V8CsDl/n85SrPKJqzDR0h1CuEfjP4/Cynqbz08hPD3RaA5VmSRvKg HhcTFOldqR7PQ== From: Mark Brown Date: Fri, 24 Mar 2023 22:58:42 +0000 Subject: [PATCH] regmap: Support paging for buses with reg_read()/reg_write() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230324-regmap-reg-read-write-page-v1-1-1fbc0dac67ae@kernel.org> X-B4-Tracking: v=1; b=H4sIACIrHmQC/x2NwQqDMBBEf0X23ECMCra/UnrY6KqLNIaN1ILk3 914GIZ5DDMnJBKmBK/qBKEfJ96ChvpRwbBgmMnwqBmcdY1tXGuE5i/GYioczSG8k4moTf/0tut qR/3Ugg54TAoFw7CUiWOTteAoNPH//nx/cr4AqKY3+oMAAAA= To: linux-kernel@vger.kernel.org Cc: Mark Brown X-Mailer: b4 0.13-dev-2eb1a X-Developer-Signature: v=1; a=openpgp-sha256; l=1560; i=broonie@kernel.org; h=from:subject:message-id; bh=6DOB3pAoTnkvCSogv9KXyamFR2xytgfPyfRl68Nbriw=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBkHisnxCGpr53VM68xN5E4Mc+t9NnhH3jwbTnI3GdT bGGqVgSJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZB4rJwAKCRAk1otyXVSH0NhYB/ 9vIMdcWpilj4OAtTGNU0FzphCxl261DZpeUNXiSeouNnW3FoDnQr6eJSfSYn5XY2R9i7yzAeKmAGEX CqjYzH0dVsEQqfrueKXflMncyngoOIWCMF9D7kKEKppdCKLxz2E8j46GRlkbGaJ9GUcGob00nTWgR9 RdtMCbxTwH2sBuCvi1i6RPDF8dI6Cu6x6PmDtIS+pn9d8ROlqWD5L/1WaNzoPWS8kvGVnrfyXL1HaX ZMMAtFRMGluxYME+wGVdJlT9FdRDRh37IWf9NRD2oHCBwD914Li4zm135M8ueZElbJaUYXWZyyIS+2 2Z0nlUM+5aYltITWhzQgDG//GVUIi9 X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We don't currently support paging for regmaps where the I/O happens through bus provided reg_read() and reg_write() operatons, we simply ignore the range since nothing is wired up properly. Wire things up. Signed-off-by: Mark Brown --- drivers/base/regmap/regmap.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index d2a54eb0efd9..7960e80edb79 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1941,6 +1941,15 @@ static int _regmap_bus_reg_write(void *context, unsi= gned int reg, unsigned int val) { struct regmap *map =3D context; + struct regmap_range_node *range; + int ret; + + range =3D _regmap_range_lookup(map, reg); + if (range) { + ret =3D _regmap_select_page(map, ®, range, 1); + if (ret !=3D 0) + return ret; + } =20 reg +=3D map->reg_base; reg >>=3D map->format.reg_downshift; @@ -2841,6 +2850,15 @@ static int _regmap_bus_reg_read(void *context, unsig= ned int reg, unsigned int *val) { struct regmap *map =3D context; + struct regmap_range_node *range; + int ret; + + range =3D _regmap_range_lookup(map, reg); + if (range) { + ret =3D _regmap_select_page(map, ®, range, 1); + if (ret !=3D 0) + return ret; + } =20 reg +=3D map->reg_base; reg >>=3D map->format.reg_downshift; --- base-commit: e8d018dd0257f744ca50a729e3d042cf2ec9da65 change-id: 20230324-regmap-reg-read-write-page-b9b05512e8f4 Best regards, --=20 Mark Brown