From patchwork Wed Apr 20 19:28:41 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Paul Walmsley X-Patchwork-Id: 722881 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p3KJjiIB031586 for ; Wed, 20 Apr 2011 19:45:46 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755876Ab1DTTpp (ORCPT ); Wed, 20 Apr 2011 15:45:45 -0400 Received: from utopia.booyaka.com ([72.9.107.138]:49008 "EHLO utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755807Ab1DTTpo (ORCPT ); Wed, 20 Apr 2011 15:45:44 -0400 Received: (qmail 11623 invoked by uid 1019); 20 Apr 2011 19:45:43 -0000 MBOX-Line: From nobody Wed Apr 20 13:28:41 2011 Subject: [PATCH 2/5] OMAP4: clock data: Change DSS clock aliases To: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org From: Paul Walmsley Cc: Tomi Valkeinen , =?utf-8?q?Beno=C3=AEt?= Cousson Date: Wed, 20 Apr 2011 13:28:41 -0600 Message-ID: <20110420192839.16986.17445.stgit@twilight.localdomain> In-Reply-To: <20110420192601.16986.56558.stgit@twilight.localdomain> References: <20110420192601.16986.56558.stgit@twilight.localdomain> User-Agent: StGit/0.15 MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 20 Apr 2011 19:45:46 +0000 (UTC) From: Tomi Valkeinen DSS driver has used fck and ick clocks on OMAP2/3 to get DSS HW up and running, and also to get the pixel clock's source clock rate from the fck. On OMAP4 the clock data is set up in a different way, as there's no ick, dss_fck points to a fake clock which just affects DSS's MODULEMODE, and dss_dss_clk if the DSS_FCK. >From DSS driver's point of view the dss_fck sounds like an ick, and dss_dss_clk is the fck. While this is not entirely correct from HW point of view, especially for the ick, configuring the clock aliases that way makes DSS "just work" with OMAP4's clock setup. In the (hopefully near) future DSS driver will be reworked to use pm_runtime support which should clean up the clock code. Signed-off-by: Tomi Valkeinen Cc: Benoît Cousson Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/clock44xx_data.c | 9 ++------- 1 files changed, 2 insertions(+), 7 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index 276992d..8c96567 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -3116,14 +3116,9 @@ static struct omap_clk omap44xx_clks[] = { CLK(NULL, "dsp_fck", &dsp_fck, CK_443X), CLK("omapdss_dss", "sys_clk", &dss_sys_clk, CK_443X), CLK("omapdss_dss", "tv_clk", &dss_tv_clk, CK_443X), - CLK("omapdss_dss", "dss_clk", &dss_dss_clk, CK_443X), CLK("omapdss_dss", "video_clk", &dss_48mhz_clk, CK_443X), - CLK("omapdss_dss", "fck", &dss_fck, CK_443X), - /* - * On OMAP4, DSS ick is a dummy clock; this is needed for compatibility - * with OMAP2/3. - */ - CLK("omapdss_dss", "ick", &dummy_ck, CK_443X), + CLK("omapdss_dss", "fck", &dss_dss_clk, CK_443X), + CLK("omapdss_dss", "ick", &dss_fck, CK_443X), CLK(NULL, "efuse_ctrl_cust_fck", &efuse_ctrl_cust_fck, CK_443X), CLK(NULL, "emif1_fck", &emif1_fck, CK_443X), CLK(NULL, "emif2_fck", &emif2_fck, CK_443X),