From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 9B0BBC433FF for ; Tue, 6 Aug 2019 00:55:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7860F2070D for ; Tue, 6 Aug 2019 00:55:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731349AbfHFAzm (ORCPT ); Mon, 5 Aug 2019 20:55:42 -0400 Received: from mga07.intel.com ([134.134.136.100]:35775 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731242AbfHFAzh (ORCPT ); Mon, 5 Aug 2019 20:55:37 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Aug 2019 17:55:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,350,1559545200"; d="scan'208";a="198153156" Received: from sahluwal-mobl1.amr.corp.intel.com (HELO pbossart-mobl3.intel.com) ([10.252.202.215]) by fmsmga004.fm.intel.com with ESMTP; 05 Aug 2019 17:55:36 -0700 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, vkoul@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com, srinivas.kandagatla@linaro.org, Blauciak@vger.kernel.org, Slawomir , Pierre-Louis Bossart , Sanyog Kale Subject: [PATCH 06/17] soundwire: cadence_master: use firmware defaults for frame shape Date: Mon, 5 Aug 2019 19:55:11 -0500 Message-Id: <20190806005522.22642-7-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190806005522.22642-1-pierre-louis.bossart@linux.intel.com> References: <20190806005522.22642-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remove hard-coding and use firmware (BIOS/DT) values. If they are wrong use default 48x2 frame shape. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/cadence_master.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c index 5d9729b4d634..89c55e4bb72c 100644 --- a/drivers/soundwire/cadence_master.c +++ b/drivers/soundwire/cadence_master.c @@ -48,6 +48,8 @@ #define CDNS_MCP_SSPSTAT 0xC #define CDNS_MCP_FRAME_SHAPE 0x10 #define CDNS_MCP_FRAME_SHAPE_INIT 0x14 +#define CDNS_MCP_FRAME_SHAPE_COL_MASK GENMASK(2, 0) +#define CDNS_MCP_FRAME_SHAPE_ROW_OFFSET 3 #define CDNS_MCP_CONFIG_UPDATE 0x18 #define CDNS_MCP_CONFIG_UPDATE_BIT BIT(0) @@ -175,7 +177,6 @@ /* Driver defaults */ #define CDNS_DEFAULT_CLK_DIVIDER 0 -#define CDNS_DEFAULT_FRAME_SHAPE 0x30 #define CDNS_DEFAULT_SSP_INTERVAL 0x18 #define CDNS_TX_TIMEOUT 2000 @@ -901,6 +902,20 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns, } EXPORT_SYMBOL(sdw_cdns_pdi_init); +static u32 cdns_set_initial_frame_shape(int n_rows, int n_cols) +{ + u32 val; + int c; + int r; + + r = sdw_find_row_index(n_rows); + c = sdw_find_col_index(n_cols) & CDNS_MCP_FRAME_SHAPE_COL_MASK; + + val = (r << CDNS_MCP_FRAME_SHAPE_ROW_OFFSET) | c; + + return val; +} + /** * sdw_cdns_init() - Cadence initialization * @cdns: Cadence instance @@ -923,8 +938,13 @@ int sdw_cdns_init(struct sdw_cdns *cdns) val |= CDNS_DEFAULT_CLK_DIVIDER; cdns_writel(cdns, CDNS_MCP_CLK_CTRL0, val); - /* Set the default frame shape */ - cdns_writel(cdns, CDNS_MCP_FRAME_SHAPE_INIT, CDNS_DEFAULT_FRAME_SHAPE); + /* + * Frame shape changes after initialization have to be done + * with the bank switch mechanism + */ + val = cdns_set_initial_frame_shape(prop->default_row, + prop->default_col); + cdns_writel(cdns, CDNS_MCP_FRAME_SHAPE_INIT, val); /* Set SSP interval to default value */ cdns_writel(cdns, CDNS_MCP_SSP_CTRL0, CDNS_DEFAULT_SSP_INTERVAL); -- 2.20.1