From patchwork Fri Dec 17 13:09:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 12684581 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2D5C0C433F5 for ; Fri, 17 Dec 2021 13:10:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=s1Wq8r8jh/sFs1u9JBYo3Fw/MF+Z88Z6rqfzn72ijFY=; b=TrN0twPXwVGWsO /R3aruOH/nm+rsI8II8NdedrUZNr6rEhHsJfA8P+7EFoHkpxYgUQY8492R+KFcUHZMHMpRsm2cUIR +Peb2A7zwnbdgjeRkucF5ck1Uxnz9EzX1P+GFAIGM8hr9RDETqh7IuY6MdGekxkvn8GXTBfWjs293 pknibqV+6m6DaECiXMapiycD14ia09RnPeJDBDmWtzlcFC9nOOJobv0R/eOLBJl4VxlnY6BX3ehrk IYaJPZjjHdz1ENqstHH4p2dTU6DeM7vvqEOkfJqrg2P330sJ4I80Jn22qmGwz3XFuWnFP0Px4PdIz SS96no6ENgaUXW/STpow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1myCzk-00AIy6-Dg; Fri, 17 Dec 2021 13:09:56 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1myCzI-00AImA-E6 for linux-rockchip@lists.infradead.org; Fri, 17 Dec 2021 13:09:31 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1myCzF-0004Ur-9K; Fri, 17 Dec 2021 14:09:25 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1myCzE-00Cjq6-0c; Fri, 17 Dec 2021 14:09:24 +0100 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, Heiko Stuebner , Michael Riesch , kernel@pengutronix.de, Sascha Hauer Subject: [PATCH 3/4] soc: rockchip: power-domain: Add regulator support Date: Fri, 17 Dec 2021 14:09:18 +0100 Message-Id: <20211217130919.3035788-4-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211217130919.3035788-1-s.hauer@pengutronix.de> References: <20211217130919.3035788-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211217_050928_484948_001C0A67 X-CRM114-Status: GOOD ( 16.62 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org This patch allows to let a domain be supplied by a regulator which is needed for the GPU on the rk3568-EVB board. Signed-off-by: Sascha Hauer --- drivers/soc/rockchip/pm_domains.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c index dcfd3db649f58..e7db888cc226c 100644 --- a/drivers/soc/rockchip/pm_domains.c +++ b/drivers/soc/rockchip/pm_domains.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -80,6 +81,7 @@ struct rockchip_pm_domain { u32 *qos_save_regs[MAX_QOS_REGS_NUM]; int num_clks; struct clk_bulk_data *clks; + struct regulator *regulator; }; struct rockchip_pmu { @@ -344,6 +346,14 @@ static int rockchip_pd_power(struct rockchip_pm_domain *pd, bool power_on) static int rockchip_pd_power_on(struct generic_pm_domain *domain) { struct rockchip_pm_domain *pd = to_rockchip_pd(domain); + struct rockchip_pmu *pmu = pd->pmu; + int ret; + + ret = regulator_enable(pd->regulator); + if (ret) { + dev_err(pmu->dev, "failed to enable regulator: %d\n", ret); + return ret; + } return rockchip_pd_power(pd, true); } @@ -351,8 +361,15 @@ static int rockchip_pd_power_on(struct generic_pm_domain *domain) static int rockchip_pd_power_off(struct generic_pm_domain *domain) { struct rockchip_pm_domain *pd = to_rockchip_pd(domain); + int ret; - return rockchip_pd_power(pd, false); + ret = rockchip_pd_power(pd, false); + if (ret) + return ret; + + regulator_disable(pd->regulator); + + return 0; } static int rockchip_pd_attach_dev(struct generic_pm_domain *genpd, @@ -500,6 +517,11 @@ static int rockchip_domain_probe(struct platform_device *pdev) pd->info = pd_info; pd->pmu = pd_info->pmu; + pd->regulator = devm_regulator_get(&pdev->dev, "power"); + + if (IS_ERR(pd->regulator)) + return PTR_ERR(pd->regulator); + pd->num_clks = devm_clk_bulk_get_all(&pdev->dev, &pd->clks); if (pd->num_clks < 0) return pd->num_clks;