From patchwork Fri Apr 2 19:20:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 12181441 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8AE0AC433B4 for ; Fri, 2 Apr 2021 19:22:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5740361175 for ; Fri, 2 Apr 2021 19:22:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236455AbhDBTWL (ORCPT ); Fri, 2 Apr 2021 15:22:11 -0400 Received: from smtp-17.italiaonline.it ([213.209.10.17]:48550 "EHLO libero.it" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S236491AbhDBTWI (ORCPT ); Fri, 2 Apr 2021 15:22:08 -0400 Received: from passgat-Modern-14-A10M.homenet.telecomitalia.it ([87.20.116.197]) by smtp-17.iol.local with ESMTPA id SPLllsyFltpGHSPLrl2Fss; Fri, 02 Apr 2021 21:21:04 +0200 x-libjamoibt: 1601 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=libero.it; s=s2021; t=1617391264; bh=up9YaF3qqoP9Rj40HYk4B0Nz1BazHLAaOp1YNJrouIQ=; h=From; b=TESdbrATyjqXIX85pZvAX3TDDFhu1d8EuzTDMZKnFdDL03IgwZxErC54yPsHyMs16 3Au4op54V2NDSZHE0BqSsSTGKof6QyZZwXVqYIy9eukV0jZ2nn0t9hJy69TA0/DWyH 3JTW/7JB78fuk5XgTvYcNKaUmdGe2vt3rSG3jnCpPWQ8KB/iGmUndQlSSyxAND6pn2 MTA7JJ4E+JN3DjaGyPXLaJfow6t42D8eYPcKiRoNqsmx8nbzqPSftRXiKed5fnmOde qYA+peprbJ7zO484M1OPxfvW6blNYI3yuxEIZjhK6+m4nGZzLFpyLzJzOsj8VdbSbb hCAIh/Wl8hAAQ== X-CNFS-Analysis: v=2.4 cv=Q7IXX66a c=1 sm=1 tr=0 ts=60676ea0 cx=a_exe a=AVqmXbCQpuNSdJmApS5GbQ==:117 a=AVqmXbCQpuNSdJmApS5GbQ==:17 a=iFnIn8U_QRK4IMTQmbIA:9 From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Dario Binacchi , Bin Meng , Michael Turquette , Stephen Boyd , Tero Kristo , linux-clk@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCH 2/2] clk: ti: get register address from device tree Date: Fri, 2 Apr 2021 21:20:54 +0200 Message-Id: <20210402192054.7934-3-dariobin@libero.it> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210402192054.7934-1-dariobin@libero.it> References: <20210402192054.7934-1-dariobin@libero.it> X-CMAE-Envelope: MS4xfCGuF4rrqDQOKDnnBQ7lm1YBN4uFpPE/WplwIiVTXbXv+UuvDo0U8eLC6wzT4orWzSwcPRCSbZaotZfsRorvRTYC6CV97ZfTwWpKVmylDgqjZ4v4ckQ/ Sltsu/PCfcWVeeqcRCDPUas4W/3xQJEw3wPQY0mLI2tb/19vjHfIOJwOm2/lL34tbVGJsOqbOOSe2kllFLzFU+7q0F35qPnEbGtdcIB04DL+FNfsGfX0PdVP 8oJgJwbUaxQY1QfY6t5AbhTW/5yNZ6fv3vjvNXpt45zZ8w0k3rmeQEt/6hM7x2abd+7+wJcIPPligRZRC9LH3Hbl5j0IyHY7Blch/jLdzd8WcDpV9x4EFN2l ZREezdkoUuMTx75NSLCdTpaNAsldVBI2zte9O+ZL2/IjcO8hOVdeEFZ1yVf+kg8tvIeWVC/YiEgu7c7MpqtfJ55Jp0tOENnt4v/s0b0m+C0aXa2ff84= Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Until now, only the register offset was retrieved from the device tree to be added, during access, to a common base address for the clocks. If possible, we try to retrieve the physical address of the register directly from the device tree. Signed-off-by: Dario Binacchi --- drivers/clk/ti/clk.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c index 3da33c786d77..938f5a2cb425 100644 --- a/drivers/clk/ti/clk.c +++ b/drivers/clk/ti/clk.c @@ -265,9 +265,21 @@ int __init ti_clk_retry_init(struct device_node *node, void *user, int ti_clk_get_reg_addr(struct device_node *node, int index, struct clk_omap_reg *reg) { + const __be32 *addrp; + u64 size, addr = OF_BAD_ADDR; + unsigned int flags; u32 val; int i; + addrp = of_get_address(node, index, &size, &flags); + if (addrp) + addr = of_translate_address(node, addrp); + + if (addr != OF_BAD_ADDR) { + reg->ptr = ioremap(addr, sizeof(u32)); + return 0; + } + for (i = 0; i < CLK_MAX_MEMMAPS; i++) { if (clocks_node_ptr[i] == node->parent) break; @@ -287,7 +299,6 @@ int ti_clk_get_reg_addr(struct device_node *node, int index, reg->offset = val; reg->ptr = NULL; - return 0; }