From patchwork Wed Jul 24 14:00:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Usyskin, Alexander" X-Patchwork-Id: 814318 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 DABDBDDC5 for ; Wed, 24 Jul 2024 14:09:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721830161; cv=none; b=jbTtMkDGEUwQjH8CPxL6mPQtCOW3GXeVRvJyIV+bz+W0SCaf6iBe8vybHAKwUzt2j2TKHu5dJEKjsQRClhdxNBWGgouDiPRfY6tK6HqzXlFfVu4L9oIQqCn5WRnOERJhvkOL707JKNC5++8a11bjc5b5/O5Hsg92GxD42ki1YA4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721830161; c=relaxed/simple; bh=11QOs8u+bUy7eaSFVBIk7XtmbUWxd8eyYN7UZ5kbeYM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qCX5Lzu+sd2B32V+6XcC3Lcym59Oz0UYxpWy7B6RqPCO6IXe1a8juef1xV23/FvPDRfU311Z8TZimgEcVgWv0XWUNGwWc5l/vMVjA2POH27zxodvDl2d/WXYgjSlmrQDYu9lYv4MikRD0TGLd76qqglzFMK0kb17Jflc4IKDAkI= 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=f4QJ4oya; arc=none smtp.client-ip=192.198.163.9 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="f4QJ4oya" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1721830160; x=1753366160; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=11QOs8u+bUy7eaSFVBIk7XtmbUWxd8eyYN7UZ5kbeYM=; b=f4QJ4oyaQtq1JGp9TdOR9oBln93sGlyIXk5h4UTdH0nTcsnnLPvPOb5q EH/Gl095exvQevN0Y/qjnZU8PIXvM0MR1bNcj74znIvIV4tv2HvxA9YEX G9oDjjhrfh/YHwwPHp/vMsmhI36/kdgNSxP3ig/zylA2812BdA7VtqFXW N7qL40ilVLuXnzbF8queaoC/BD8N06NoWZybuy4lwuJ9Z63NelLbhFACw wGrpcaHT2yA24BqEElbm4Y4DY1wQKncPVKPiws2hmVwUOpUjeJlniy+g/ HnsXzH8mhOaPYXBypljcE79wrJ2Omfei3ijBmKcwk2XcCSruoZvADgmWY Q==; X-CSE-ConnectionGUID: LLCLNd0FSKiuySmbuPk1rQ== X-CSE-MsgGUID: ATJ+YzmTT6242h6Clrwcvg== X-IronPort-AV: E=McAfee;i="6700,10204,11143"; a="30173787" X-IronPort-AV: E=Sophos;i="6.09,233,1716274800"; d="scan'208";a="30173787" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jul 2024 07:09:19 -0700 X-CSE-ConnectionGUID: jAWtK+DZQniwI/JoNncp9w== X-CSE-MsgGUID: 8lRaHHmkQxS3H+k+PwJWmA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,233,1716274800"; d="scan'208";a="83211503" Received: from sannilnx-dsk.jer.intel.com ([10.12.231.107]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jul 2024 07:09:15 -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 v2 07/12] spi: intel-dg: wake card on operations Date: Wed, 24 Jul 2024 17:00:09 +0300 Message-Id: <20240724140014.428991-8-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240724140014.428991-1-alexander.usyskin@intel.com> References: <20240724140014.428991-1-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 534e99cb336d..9671c4ec01a9 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);