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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Georgi Djakov <georgi.djakov@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Peter De Schrijver <pdeschrijver@nvidia.com>,
	MyungJoo Ham <myungjoo.ham@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Mikko Perttunen <cyndis@kapsi.fi>,
	Viresh Kumar <vireshk@kernel.org>,
	Peter Geis <pgwipeout@gmail.com>,
	Nicolas Chauvet <kwizart@gmail.com>,
	Krzysztof Kozlowski <krzk@kernel.org>
Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH v10 05/19] memory: tegra124-emc: Continue probing if timings are missing in device-tree
Date: Mon, 23 Nov 2020 03:27:09 +0300	[thread overview]
Message-ID: <20201123002723.28463-6-digetx@gmail.com> (raw)
In-Reply-To: <20201123002723.28463-1-digetx@gmail.com>

EMC driver will become mandatory after turning it into interconnect
provider because interconnect users, like display controller driver, will
fail to probe using newer device-trees that have interconnect properties.
Thus make EMC driver to probe even if timings are missing in device-tree.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/memory/tegra/tegra124-emc.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c
index edfbf6d6d357..8fb8c1af25c9 100644
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@ -1201,23 +1201,15 @@ static int tegra_emc_probe(struct platform_device *pdev)
 	ram_code = tegra_read_ram_code();
 
 	np = tegra_emc_find_node_by_ram_code(pdev->dev.of_node, ram_code);
-	if (!np) {
-		dev_err(&pdev->dev,
-			"no memory timings for RAM code %u found in DT\n",
-			ram_code);
-		return -ENOENT;
-	}
-
-	err = tegra_emc_load_timings_from_dt(emc, np);
-	of_node_put(np);
-	if (err)
-		return err;
-
-	if (emc->num_timings == 0) {
-		dev_err(&pdev->dev,
-			"no memory timings for RAM code %u registered\n",
-			ram_code);
-		return -ENOENT;
+	if (np) {
+		err = tegra_emc_load_timings_from_dt(emc, np);
+		of_node_put(np);
+		if (err)
+			return err;
+	} else {
+		dev_info(&pdev->dev,
+			 "no memory timings for RAM code %u found in DT\n",
+			 ram_code);
 	}
 
 	err = emc_init(emc);
-- 
2.29.2


  parent reply	other threads:[~2020-11-23  0:31 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20201123003254epcas1p1763e1ce693d7cb8e2f20d521e701ad5f@epcas1p1.samsung.com>
2020-11-23  0:27 ` [PATCH v10 00/19] Introduce memory interconnect for NVIDIA Tegra SoCs Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 01/19] dt-bindings: memory: tegra20: emc: Document opp-supported-hw property Dmitry Osipenko
2020-11-30  9:48     ` Georgi Djakov
2020-11-30 18:23       ` Krzysztof Kozlowski
2020-11-30 20:03         ` Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 02/19] memory: tegra20: Support hardware versioning and clean up OPP table initialization Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 03/19] memory: tegra30: Support interconnect framework Dmitry Osipenko
2020-11-23  6:32     ` Georgi Djakov
2020-11-23 12:14       ` Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 04/19] memory: tegra124-emc: Make driver modular Dmitry Osipenko
2020-11-23  0:27   ` Dmitry Osipenko [this message]
2020-11-23  0:27   ` [PATCH v10 06/19] memory: tegra124: Support interconnect framework Dmitry Osipenko
2020-11-23  6:33     ` Georgi Djakov
2020-11-23  0:27   ` [PATCH v10 07/19] drm/tegra: dc: Support memory bandwidth management Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 08/19] drm/tegra: dc: Extend debug stats with total number of events Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 09/19] PM / devfreq: tegra30: Support interconnect and OPPs from device-tree Dmitry Osipenko
2020-11-23  7:02     ` Chanwoo Choi
2020-11-23 12:14       ` Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 10/19] PM / devfreq: tegra30: Separate configurations per-SoC generation Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 11/19] PM / devfreq: tegra20: Deprecate in a favor of emc-stat based driver Dmitry Osipenko
2020-11-23  7:02     ` Chanwoo Choi
2020-11-23  0:27   ` [PATCH v10 12/19] ARM: tegra: Correct EMC registers size in Tegra20 device-tree Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 13/19] ARM: tegra: Add interconnect properties to " Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 14/19] ARM: tegra: Add interconnect properties to Tegra30 device-tree Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 15/19] ARM: tegra: Add interconnect properties to Tegra124 device-tree Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 16/19] ARM: tegra: Add nvidia,memory-controller phandle to Tegra20 EMC device-tree Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 17/19] ARM: tegra: Add EMC OPP properties to Tegra20 device-trees Dmitry Osipenko
2020-11-30 21:17     ` Jon Hunter
2020-11-30 22:57       ` Dmitry Osipenko
2020-12-01 20:42         ` Jon Hunter
2020-12-04 15:54         ` Thierry Reding
2020-12-05 13:52           ` Krzysztof Kozlowski
2020-11-23  0:27   ` [PATCH v10 18/19] ARM: tegra: Add EMC OPP and ICC properties to Tegra30 EMC and ACTMON device-tree nodes Dmitry Osipenko
2020-11-23  0:27   ` [PATCH v10 19/19] ARM: tegra: Add EMC OPP and ICC properties to Tegra124 " Dmitry Osipenko
2020-11-23  6:17   ` [PATCH v10 00/19] Introduce memory interconnect for NVIDIA Tegra SoCs Viresh Kumar
2020-11-23 12:13     ` Dmitry Osipenko
2020-11-30  8:44   ` Chanwoo Choi
2020-11-30  8:36     ` Krzysztof Kozlowski
2020-11-30  8:59       ` Chanwoo Choi

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