From patchwork Thu Jan 14 22:10:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 362909 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 7B19BC4332B for ; Thu, 14 Jan 2021 22:13:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 465842310A for ; Thu, 14 Jan 2021 22:13:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730663AbhANWNT (ORCPT ); Thu, 14 Jan 2021 17:13:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730657AbhANWNP (ORCPT ); Thu, 14 Jan 2021 17:13:15 -0500 Received: from relay06.th.seeweb.it (relay06.th.seeweb.it [IPv6:2001:4b7a:2000:18::167]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D344AC0617A2; Thu, 14 Jan 2021 14:11:12 -0800 (PST) Received: from IcarusMOD.eternityproject.eu (unknown [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id B910E3F1EB; Thu, 14 Jan 2021 23:11:10 +0100 (CET) From: AngeloGioacchino Del Regno To: linux-arm-msm@vger.kernel.org Cc: konrad.dybcio@somainline.org, marijn.suijten@somainline.org, martin.botka@somainline.org, phone-devel@vger.kernel.org, linux-kernel@vger.kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, AngeloGioacchino Del Regno Subject: [PATCH v2 11/11] clk: qcom: gpucc-msm8998: Allow fabia gpupll0 rate setting Date: Thu, 14 Jan 2021 23:10:59 +0100 Message-Id: <20210114221059.483390-12-angelogioacchino.delregno@somainline.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210114221059.483390-1-angelogioacchino.delregno@somainline.org> References: <20210114221059.483390-1-angelogioacchino.delregno@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The GPU PLL0 is not a fixed PLL and the rate can be set on it: this is necessary especially on boards which bootloader is setting a very low rate on this PLL before booting Linux, which would be unsuitable for postdividing to reach the maximum allowed Adreno GPU frequency of 710MHz (or, actually, even 670MHz..) on this SoC. To allow setting rates on the GPU PLL0, also define VCO boundaries and set the CLK_SET_RATE_PARENT flag to the GPU PLL0 postdivider. With this change, the Adreno GPU is now able to scale through all the available frequencies. Signed-off-by: AngeloGioacchino Del Regno --- drivers/clk/qcom/gpucc-msm8998.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/clk/qcom/gpucc-msm8998.c b/drivers/clk/qcom/gpucc-msm8998.c index 1a518c4915b4..fedfffaf0a8d 100644 --- a/drivers/clk/qcom/gpucc-msm8998.c +++ b/drivers/clk/qcom/gpucc-msm8998.c @@ -50,6 +50,11 @@ static struct clk_branch gpucc_cxo_clk = { }, }; +static struct pll_vco fabia_vco[] = { + { 249600000, 2000000000, 0 }, + { 125000000, 1000000000, 1 }, +}; + static const struct clk_div_table post_div_table_fabia_even[] = { { 0x0, 1 }, { 0x1, 2 }, @@ -61,11 +66,13 @@ static const struct clk_div_table post_div_table_fabia_even[] = { static struct clk_alpha_pll gpupll0 = { .offset = 0x0, .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA], + .vco_table = fabia_vco, + .num_vco = ARRAY_SIZE(fabia_vco), .clkr.hw.init = &(struct clk_init_data){ .name = "gpupll0", .parent_hws = (const struct clk_hw *[]){ &gpucc_cxo_clk.clkr.hw }, .num_parents = 1, - .ops = &clk_alpha_pll_fixed_fabia_ops, + .ops = &clk_alpha_pll_fabia_ops, }, }; @@ -80,6 +87,7 @@ static struct clk_alpha_pll_postdiv gpupll0_out_even = { .name = "gpupll0_out_even", .parent_hws = (const struct clk_hw *[]){ &gpupll0.clkr.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, .ops = &clk_alpha_pll_postdiv_fabia_ops, }, };