From patchwork Thu Apr 6 16:49:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tero Kristo X-Patchwork-Id: 9667925 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0135D602B3 for ; Thu, 6 Apr 2017 16:49:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9429628338 for ; Thu, 6 Apr 2017 16:49:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 88B7F285B6; Thu, 6 Apr 2017 16:49:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E7DC528338 for ; 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Thu, 6 Apr 2017 11:49:06 -0500 Received: from [172.22.5.0] (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v36Gn2NC010695; Thu, 6 Apr 2017 11:49:03 -0500 Subject: Re: [PATCHv2 0/9] clk: ti: add support for clkctrl clocks To: Tony Lindgren References: <1489741781-12816-1-git-send-email-t-kristo@ti.com> <20170317152536.GT20572@atomide.com> <94d20a17-5072-ffab-3529-4bbb14327a10@ti.com> <20170323010057.GI10760@atomide.com> <20170323170210.GL10760@atomide.com> <8648f054-cf04-41df-20f3-82e0d63feefa@ti.com> <20170330165448.GF10760@atomide.com> <55b439ed-8b81-2e6b-64f1-34f9f3cc5369@ti.com> <20170403153604.GI10760@atomide.com> From: Tero Kristo Message-ID: Date: Thu, 6 Apr 2017 19:49:02 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 MIME-Version: 1.0 In-Reply-To: <20170403153604.GI10760@atomide.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170406_094934_099260_55A80217 X-CRM114-Status: GOOD ( 18.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mturquette@baylibre.com, linux-omap@vger.kernel.org, sboyd@codeaurora.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP On 03/04/17 18:36, Tony Lindgren wrote: > * Tero Kristo [170403 07:54]: >> On 30/03/17 19:54, Tony Lindgren wrote: >>> * Tero Kristo [170330 00:20]: >>>> On 23/03/17 19:02, Tony Lindgren wrote: >>>>> * Tony Lindgren [170322 18:03]: >>>>>> * Tero Kristo [170317 14:39]: >>>>>>> On 17/03/17 17:25, Tony Lindgren wrote: >>>>>>>> * Tero Kristo [170317 02:12]: >>>>>>>>> Any additional testing on omap4 welcome as this series basically >>>>>>>>> tweaks every possible peripheral clock on the SoC. >>>>>>>> >>>>>>>> Without the last patch in this series, booting fails for me: >>>>>>>> >>>>>>>> [ 5.074890] l4_per_cm:clk:0120:0: failed to disable >>>>>>>> [ 5.085113] l4_per_cm:clk:0128:0: failed to disable >>>>>>>> >>>>>>>> Care to check that booting keeps working for each patch in the >>>>>>>> series to avoid breaking git bisect for booting? >>>>>>> >>>>>>> Hmm, I think patch 8+9 need to be squashed then. I can double check this >>>>>>> next week though. >>>>>> >>>>>> Also looks like with this set merged HDMI stops working on >>>>>> omap4 with: >>>>>> >>>>>> HDMIWP: omapdss HDMIWP error: Failed to set PHY power mode to 1 >>>>> >>>>> Forgot to mention that's with omapdrm with encoder-tpd12s015 and >>>>> encoder-tfp410 modules loaded to get HDMI working. Here's more verbose >>>>> dmesg output in case that provides more clues: >>>>> >>>>> [ 91.042877] omapdss HDMICORE error: operation stopped when reading edid >>>>> [ 91.078308] [drm] Enabling DMM ywrap scrolling >>>>> [ 91.099243] omapdss HDMIWP error: Failed to set PHY power mode to 1 >>>>> [ 91.107879] omapdss HDMI error: failed to power on device >>>>> [ 91.107879] omapdrm omapdrm.0: Failed to enable display 'hdmi': -5 >>>>> [ 91.359619] omapdrm omapdrm.0: atomic complete timeout (pipe 0)! >>>>> [ 91.619964] omapdrm omapdrm.0: atomic complete timeout (pipe 0)! >>>>> [ 91.620300] Console: switching to colour frame buffer device 128x48 >>>>> [ 91.682434] omapdrm omapdrm.0: fb0: omapdrm frame buffer device >>>>> [ 91.770812] [drm] Initialized omapdrm 1.0.0 20110917 for omapdrm.0 on minor 0 >>>>> [ 92.818054] omapdss HDMICORE error: operation stopped when reading edid >>>>> [ 93.090087] omapdrm omapdrm.0: atomic complete timeout (pipe 0)! >>>>> [ 93.349853] omapdrm omapdrm.0: atomic complete timeout (pipe 0)! >>>>> >>>>> Regards, >>>>> >>>>> Tony >>>>> >>>> >>>> Can you try with this additional hwmod data tweak in place? Apply this on >>>> top of the existing series. >>> >>> Does not seem to help, still get the same errors. But maybe I'm doing >>> something wrong as the patch did not apply and I applied it manually. >>> >>> Regards, >>> >>> Tony >>> >> >> Hmm ok, can you provide some brief instructions how to test what you are >> doing with the HDMI? Just connect it to some external monitor? My monitor >> has a spare HDMI connector so I could try it out. > > Well build a kernel using omap2plus_defconfig, then with HDMI cable > connected load the following modules: > > encoder-tpd12s015 encoder-tfp410 connector-hdmi omapfb > > And a console should appear on the HDMI monitor. If using omapdrm, then > load omapdss and omapdrm instead. > > And if using NFSroot, you need to have ehci and smsc drivers built-in > or use an initramfs. Ok, I have a solution to the issue. Try the slightly modified patch below. It just required a couple of hwmod flags applied in addition to the patch I sent before. I also pushed a branch named "4.11-rc1-clkctrl-wip" as a reference, where also the hdmi works fine on omap4. =================================== diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index dad871a..43163b5 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -775,6 +775,7 @@ static struct omap_hwmod_opt_clk dss_hdmi_opt_clks[] = { { .role = "sys_clk", .clk = "dss_sys_clk" }, + { .role = "hdmi_clk", .clk = "dss_48mhz_clk" }, }; static struct omap_hwmod omap44xx_dss_hdmi_hwmod = { @@ -785,7 +786,7 @@ * HDMI audio requires to use no-idle mode. Hence, * set idle mode by software. */ - .flags = HWMOD_SWSUP_SIDLE, + .flags = HWMOD_SWSUP_SIDLE | HWMOD_OPT_CLKS_NEEDED, .mpu_irqs = omap44xx_dss_hdmi_irqs, .xlate_irq = omap4_xlate_irq, .sdma_reqs = omap44xx_dss_hdmi_sdma_reqs, @@ -858,11 +859,16 @@ }; /* dss_venc */ +static struct omap_hwmod_opt_clk dss_venc_opt_clks[] = { + { .role = "tv_clk", .clk = "dss_tv_clk" }, +}; + static struct omap_hwmod omap44xx_dss_venc_hwmod = { .name = "dss_venc", .class = &omap44xx_venc_hwmod_class, .clkdm_name = "l3_dss_clkdm", .main_clk = "dss_tv_clk", + .flags = HWMOD_OPT_CLKS_NEEDED, .prcm = { .omap4 = { .clkctrl_offs = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET, @@ -870,6 +876,8 @@ }, }, .parent_hwmod = &omap44xx_dss_hwmod, + .opt_clks = dss_venc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_venc_opt_clks), }; /*