From patchwork Mon Jul 29 08:43:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Usyskin X-Patchwork-Id: 815597 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8DF7913D63B for ; Mon, 29 Jul 2024 08:52:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722243148; cv=none; b=kLuEspkgMkgz1qQWxd6JNzMcBPhThTlUampO1aSygz7wxIQAo8uMCvloLl9et/ITTtweGdjleppcLXqesgh5J4BvjMTTRbeIYtFjoBrdIo6UPGcgBD5M7YIWzqYKugWnUDvgEki1m50wNn4sfGkPY9qmFKZ+TOv6hkKpeE4WBoI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722243148; c=relaxed/simple; bh=eUyFHGpLnm0GiFr6R45QRYKMqFyqBiOPWuSQdcI130g=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VwM2M0V7Nl0vol3JKiRbKQapAqfwMk81ADUEAzQGX3x4hi5SPhiRudZVHOYgahu94U7OE/WWo6pPatKa/h2/+EBN0XW3Z5fDZi2iZcgHk0D0XNHVlZl9nKkW2kwsSXdRq5epydgUpDs4z0WM9FLQvM+NtTBw5TsWb2iLeKqdxyo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=GwKat6O4; arc=none smtp.client-ip=198.175.65.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="GwKat6O4" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1722243146; x=1753779146; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eUyFHGpLnm0GiFr6R45QRYKMqFyqBiOPWuSQdcI130g=; b=GwKat6O48Mjb0AZB5w5khykvnRjTqm7ddCnHFatzWTJf9TqRZInRAscG aHAEBiCx1dOdd+vafb3retbpi2IMfAw7KpgVhvOrEfPm4ATNf3tVjtagH 9ubidkl6vbXdPLvA6BH4NPq9rogtdOabtDtcaGxxyZ6+LE2BW+SPQRAbK wUBpmoMO9f7VVnqJ0Xi26TiPi/Uxuy0opwRgxcCDJbHUNsr1pWNvAD/GR F2cmGs1GVeOV85e13+YKJmC/Afq4LVGx0jltdFG9Ijv/JmmecIceW0LAw xcE9Bc7RiENrxvLs62foJNYwXC4pCOaa7+iCyhDCXF0ehD0+eXPT47XVw Q==; X-CSE-ConnectionGUID: rtmwsBEYTUyF5132hrGJyQ== X-CSE-MsgGUID: Dws/QwB7QW2uPGJmHNeG6A== X-IronPort-AV: E=McAfee;i="6700,10204,11147"; a="42509065" X-IronPort-AV: E=Sophos;i="6.09,245,1716274800"; d="scan'208";a="42509065" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2024 01:52:26 -0700 X-CSE-ConnectionGUID: lmxSimx4Tg+OFMM5nGJbMQ== X-CSE-MsgGUID: pBcDycI5SmCl4XgtgLwGdg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,245,1716274800"; d="scan'208";a="54708510" Received: from sannilnx-dsk.jer.intel.com ([10.12.231.107]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2024 01:52:22 -0700 From: Alexander Usyskin To: Mark Brown , Lucas De Marchi , Oded Gabbay , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin Cc: Tomas Winkler , Alexander Usyskin , Vitaly Lubart , intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-spi@vger.kernel.org, intel-gfx@lists.freedesktop.org Subject: [PATCH v5 07/12] spi: intel-dg: wake card on operations Date: Mon, 29 Jul 2024 11:43:21 +0300 Message-Id: <20240729084326.2278014-8-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240729084326.2278014-1-alexander.usyskin@intel.com> References: <20240729084326.2278014-1-alexander.usyskin@intel.com> Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enable runtime PM in spi driver to notify graphics driver that whole card should be kept awake while spi operations are performed through this driver. CC: Lucas De Marchi Signed-off-by: Alexander Usyskin --- drivers/spi/spi-intel-dg.c | 44 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/spi/spi-intel-dg.c b/drivers/spi/spi-intel-dg.c index c76b0a70f8d8..a14fc3190520 100644 --- a/drivers/spi/spi-intel-dg.c +++ b/drivers/spi/spi-intel-dg.c @@ -12,11 +12,14 @@ #include #include #include +#include #include #include #include #include +#define INTEL_DG_SPI_RPM_TIMEOUT 500 + struct intel_dg_spi { struct kref refcnt; struct mtd_info mtd; @@ -471,6 +474,12 @@ static int intel_dg_spi_erase(struct mtd_info *mtd, struct erase_info *info) total_len = info->len; addr = info->addr; + ret = pm_runtime_resume_and_get(mtd->dev.parent); + if (ret < 0) { + dev_err(&mtd->dev, "rpm: get failed %d\n", ret); + return ret; + } + mutex_lock(&spi->lock); while (total_len > 0) { @@ -512,6 +521,8 @@ static int intel_dg_spi_erase(struct mtd_info *mtd, struct erase_info *info) out: mutex_unlock(&spi->lock); + pm_runtime_mark_last_busy(mtd->dev.parent); + pm_runtime_put_autosuspend(mtd->dev.parent); return ret; } @@ -545,6 +556,12 @@ static int intel_dg_spi_read(struct mtd_info *mtd, loff_t from, size_t len, if (len > spi->regions[idx].size - from) len = spi->regions[idx].size - from; + ret = pm_runtime_resume_and_get(mtd->dev.parent); + if (ret < 0) { + dev_err(&mtd->dev, "rpm: get failed %zd\n", ret); + return ret; + } + mutex_lock(&spi->lock); ret = spi_read(spi, region, from, len, buf); @@ -557,6 +574,8 @@ static int intel_dg_spi_read(struct mtd_info *mtd, loff_t from, size_t len, *retlen = ret; mutex_unlock(&spi->lock); + pm_runtime_mark_last_busy(mtd->dev.parent); + pm_runtime_put_autosuspend(mtd->dev.parent); return 0; } @@ -590,6 +609,12 @@ static int intel_dg_spi_write(struct mtd_info *mtd, loff_t to, size_t len, if (len > spi->regions[idx].size - to) len = spi->regions[idx].size - to; + ret = pm_runtime_resume_and_get(mtd->dev.parent); + if (ret < 0) { + dev_err(&mtd->dev, "rpm: get failed %zd\n", ret); + return ret; + } + mutex_lock(&spi->lock); ret = spi_write(spi, region, to, len, buf); @@ -602,6 +627,8 @@ static int intel_dg_spi_write(struct mtd_info *mtd, loff_t to, size_t len, *retlen = ret; mutex_unlock(&spi->lock); + pm_runtime_mark_last_busy(mtd->dev.parent); + pm_runtime_put_autosuspend(mtd->dev.parent); return 0; } @@ -747,6 +774,17 @@ static int intel_dg_spi_probe(struct auxiliary_device *aux_dev, } } + pm_runtime_enable(device); + + pm_runtime_set_autosuspend_delay(device, INTEL_DG_SPI_RPM_TIMEOUT); + pm_runtime_use_autosuspend(device); + + ret = pm_runtime_resume_and_get(device); + if (ret < 0) { + dev_err(device, "rpm: get failed %d\n", ret); + goto err_norpm; + } + spi->base = devm_ioremap_resource(device, &ispi->bar); if (IS_ERR(spi->base)) { dev_err(device, "mmio not mapped\n"); @@ -769,9 +807,13 @@ static int intel_dg_spi_probe(struct auxiliary_device *aux_dev, dev_set_drvdata(&aux_dev->dev, spi); + pm_runtime_put(device); return 0; err: + pm_runtime_put(device); +err_norpm: + pm_runtime_disable(device); kref_put(&spi->refcnt, intel_dg_spi_release); return ret; } @@ -783,6 +825,8 @@ static void intel_dg_spi_remove(struct auxiliary_device *aux_dev) if (!spi) return; + pm_runtime_disable(&aux_dev->dev); + mtd_device_unregister(&spi->mtd); dev_set_drvdata(&aux_dev->dev, NULL);