From patchwork Thu Jun 24 08:39:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "simba.hsu" X-Patchwork-Id: 466539 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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 308DEC48BDF for ; Thu, 24 Jun 2021 08:39:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C8EB613D8 for ; Thu, 24 Jun 2021 08:39:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229465AbhFXIl4 (ORCPT ); Thu, 24 Jun 2021 04:41:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbhFXIl4 (ORCPT ); Thu, 24 Jun 2021 04:41:56 -0400 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E229EC061574 for ; Thu, 24 Jun 2021 01:39:36 -0700 (PDT) Received: by mail-pj1-x1030.google.com with SMTP id g4so3080631pjk.0 for ; Thu, 24 Jun 2021 01:39:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raydium-corp-partner-google-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=ajTOyjYSJ0oov782itPNsymFCO3cX1BrHaaPfNpFmD8=; b=0m/vunNgQ/tTu6nbV8YIx/FLwYSZsKUbsNT5Hr9jX6QIq7caEoNGng3fmn66lra4Qi 81gYzUC1JWSnFnJso883DhJkgNKEHBx85rfTl8kY77xnku+bLpPC/0PAZsEskBcuR1Pv YSqudlZZvFSAqWcHTAYJvo+KAlJ5Mo4ABkUrNDet8JpXYuwT2JPCu0WDObWTotWeY3f6 P0uWI6yxoyCBYXAmK0mxNc8PjCj+8HTPYuWx6LsnoB/Xls+XcUXPFSux52xMLySiD2kP gckhbvvwhc/AJYmJGAfbIq2vlaanj+BS5yym8BlKJA/5iToPsCCwn/ykCp6d6U8cyo5j MzWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=ajTOyjYSJ0oov782itPNsymFCO3cX1BrHaaPfNpFmD8=; b=KCp5J7qR5E4jNHG8PcKQSvWzQHsbtaUMpWe8LjbUQfmgvlnOGnfChvJSJw7gvCq7+Q 16dXFLk2M29BuTzt4LL24eU1O7N3E9adafy6+aP5NzkCs+rPgAmmjLqdtjsO4PPD4XjS lsofa3X+tRqhKw30kARKY3bc9+bvk2YtFMb9rsnnJhCeb/7NeB6wVRsBQm9obGqpzaR2 0alBnLkZa29ZB0ys5RJMkSuAFxORhziLn6XLRizI0qT5pqFzNlkB37VMQcm1PSGWn+fX yQ4z2QcegQNW0KLpp9sAbyKVRTPelyQBh8Kcy7vBwI00kUvnUOLqa4T61fgzrho55mzL KLEQ== X-Gm-Message-State: AOAM5310XMAGolZL9rb4dQW1uoMKhAiyjVWjllmlgNhkda4qyJ7huMsI 2gvttm56mbgOybErDTk5Ira1HA== X-Google-Smtp-Source: ABdhPJwKthPtxXkaae/OY1X7xkFWlJNVbQx2G8tigfr8Gcu4lDaNyRzwQPzQRqHW2/Moe/zYH95Zdw== X-Received: by 2002:a17:90a:65c8:: with SMTP id i8mr14220646pjs.207.1624523976337; Thu, 24 Jun 2021 01:39:36 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:486:1484:8b7e:ac0:b691:20b0]) by smtp.gmail.com with ESMTPSA id a25sm2080228pff.54.2021.06.24.01.39.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 01:39:36 -0700 (PDT) From: "simba.hsu" X-Google-Original-From: "simba.hsu" To: dmitry.torokhov@gmail.com, simba.hsu@rad-ic.com, furquan@google.com, seanpaul@chromium.org, rrangle@chromium.org Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, KP.li@rad-ic.com, jeffrey.lin@rad-ic.com Subject: [PATCH] Input: raydium_i2c_ts - read device version in bootloader mode Date: Thu, 24 Jun 2021 16:39:13 +0800 Message-Id: <20210624083913.14936-1-simba.hsu@rad-ic.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Add support reading device ID when controller is in bootloader mode, which may happen if firmware update has been interrupted. Signed-off-by: simba.hsu --- drivers/input/touchscreen/raydium_i2c_ts.c | 52 ++++++++++++++++++---- 1 file changed, 44 insertions(+), 8 deletions(-) diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c index 4d2d22a86977..d3f8cc3285a2 100644 --- a/drivers/input/touchscreen/raydium_i2c_ts.c +++ b/drivers/input/touchscreen/raydium_i2c_ts.c @@ -36,7 +36,8 @@ #define RM_CMD_BOOT_CHK 0x33 /* send data check */ #define RM_CMD_BOOT_READ 0x44 /* send wait bl data ready*/ -#define RM_BOOT_RDY 0xFF /* bl data ready */ +#define RM_BOOT_RDY 0xFF /* bl data ready */ +#define RM_BOOT_CMD_READHWID 0x0E /* read hwid */ /* I2C main commands */ #define RM_CMD_QUERY_BANK 0x2B @@ -155,6 +156,7 @@ static int raydium_i2c_xfer(struct i2c_client *client, u32 addr, * sent first. Else, skip the header i.e. xfer[0]. */ int xfer_start_idx = (addr > 0xff) ? 0 : 1; + xfer_count -= xfer_start_idx; ret = i2c_transfer(client->adapter, &xfer[xfer_start_idx], xfer_count); @@ -290,6 +292,43 @@ static int raydium_i2c_sw_reset(struct i2c_client *client) return 0; } +static int raydium_i2c_query_ts_bootloader_info(struct raydium_data *ts) +{ + struct i2c_client *client = ts->client; + static const u8 get_hwid[7] = {RM_BOOT_CMD_READHWID, + 0x10, 0xc0, 0x01, 0x00, 0x04, 0x00}; + u8 rbuf[5] = {0}; + u32 hw_ver; + int error; + + error = raydium_i2c_send(client, RM_CMD_BOOT_WRT, + get_hwid, sizeof(get_hwid)); + if (error) { + dev_err(&client->dev, "WRT HWID command failed: %d\n", error); + return error; + } + + error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, rbuf, 1); + if (error) { + dev_err(&client->dev, "Ack HWID command failed: %d\n", error); + return error; + } + + error = raydium_i2c_read(client, RM_CMD_BOOT_CHK, rbuf, sizeof(rbuf)); + if (error) { + dev_err(&client->dev, "Read HWID command failed: %d (%4ph)\n", + error, rbuf + 1); + hw_ver = 0xffffffffUL; + } else + hw_ver = get_unaligned_be32(rbuf + 1); + + ts->info.hw_ver = cpu_to_le32(hw_ver); + ts->info.main_ver = 0xff; + ts->info.sub_ver = 0xff; + + return error; +} + static int raydium_i2c_query_ts_info(struct raydium_data *ts) { struct i2c_client *client = ts->client; @@ -388,13 +427,10 @@ static int raydium_i2c_initialize(struct raydium_data *ts) if (error) ts->boot_mode = RAYDIUM_TS_BLDR; - if (ts->boot_mode == RAYDIUM_TS_BLDR) { - ts->info.hw_ver = cpu_to_le32(0xffffffffUL); - ts->info.main_ver = 0xff; - ts->info.sub_ver = 0xff; - } else { + if (ts->boot_mode == RAYDIUM_TS_BLDR) + raydium_i2c_query_ts_bootloader_info(ts); + else raydium_i2c_query_ts_info(ts); - } return error; } @@ -1218,7 +1254,7 @@ static SIMPLE_DEV_PM_OPS(raydium_i2c_pm_ops, raydium_i2c_suspend, raydium_i2c_resume); static const struct i2c_device_id raydium_i2c_id[] = { - { "raydium_i2c" , 0 }, + { "raydium_i2c", 0 }, { "rm32380", 0 }, { /* sentinel */ } };