Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752124AbdHLC6O (ORCPT ); Fri, 11 Aug 2017 22:58:14 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:59267 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751908AbdHLC6C (ORCPT ); Fri, 11 Aug 2017 22:58:02 -0400 From: Jun Gao To: Wolfram Sang , Matthias Brugger CC: , , , , , , Jun Gao Subject: [PATCH v2 2/2] i2c: mediatek: Add i2c compatible for MediaTek MT7622 Date: Sat, 12 Aug 2017 10:57:52 +0800 Message-ID: <1502506672-7620-3-git-send-email-jun.gao@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1502506672-7620-1-git-send-email-jun.gao@mediatek.com> References: <1502506672-7620-1-git-send-email-jun.gao@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1619 Lines: 56 From: Jun Gao Add i2c compatible for MT7622. Compare to MT8173 i2c controller, MT7622 limits message numbers to 255, and does not support 4GB DMA mode. Signed-off-by: Jun Gao --- drivers/i2c/busses/i2c-mt65xx.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 9bedf0b..2c7f847 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -172,6 +172,14 @@ struct mtk_i2c { .max_comb_2nd_msg_len = 31, }; +static const struct i2c_adapter_quirks mt7622_i2c_quirks = { + .max_num_msgs = 255, + .max_write_len = 65535, + .max_read_len = 65535, + .max_comb_1st_msg_len = 65535, + .max_comb_2nd_msg_len = 65535, +}; + static const struct mtk_i2c_compatible mt6577_compat = { .quirks = &mt6577_i2c_quirks, .pmic_i2c = 0, @@ -190,6 +198,15 @@ struct mtk_i2c { .support_33bits = 0, }; +static const struct mtk_i2c_compatible mt7622_compat = { + .quirks = &mt7622_i2c_quirks, + .pmic_i2c = 0, + .dcm = 1, + .auto_restart = 1, + .aux_len_reg = 1, + .support_33bits = 0, +}; + static const struct mtk_i2c_compatible mt8173_compat = { .pmic_i2c = 0, .dcm = 1, @@ -201,6 +218,7 @@ struct mtk_i2c { static const struct of_device_id mtk_i2c_of_match[] = { { .compatible = "mediatek,mt6577-i2c", .data = &mt6577_compat }, { .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat }, + { .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat }, { .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat }, {} }; -- 1.8.1.1