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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,
        devicetree@vger.kernel.org
Subject: [PATCH v6 35/52] memory: tegra: Add missing latency allowness entry for Page Table Cache
Date:   Mon, 26 Oct 2020 01:17:18 +0300
Message-Id: <20201025221735.3062-36-digetx@gmail.com>
In-Reply-To: <20201025221735.3062-1-digetx@gmail.com>
References: <20201025221735.3062-1-digetx@gmail.com>
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Precedence: bulk

The PTC memory client misses the latency allowness entry and this patch
adds it.

This prevents erroneous clearing of MC_INTSTATUS 0x0 register during
of the LA programming in tegra_mc_setup_latency_allowance() due to the
missing entry. Note that this patch doesn't fix any known problems.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/memory/tegra/tegra114.c | 6 ++++++
 drivers/memory/tegra/tegra124.c | 6 ++++++
 drivers/memory/tegra/tegra30.c  | 6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/drivers/memory/tegra/tegra114.c b/drivers/memory/tegra/tegra114.c
index 48ef01c3ff90..ed376ba2d2fe 100644
--- a/drivers/memory/tegra/tegra114.c
+++ b/drivers/memory/tegra/tegra114.c
@@ -15,6 +15,12 @@ static const struct tegra_mc_client tegra114_mc_clients[] = {
 		.id = 0x00,
 		.name = "ptcr",
 		.swgroup = TEGRA_SWGROUP_PTC,
+		.la = {
+			.reg = 0x34c,
+			.shift = 0,
+			.mask = 0xff,
+			.def = 0x0,
+		},
 	}, {
 		.id = 0x01,
 		.name = "display0a",
diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c
index 0cede24479bf..e2389573d3c0 100644
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@ -15,6 +15,12 @@ static const struct tegra_mc_client tegra124_mc_clients[] = {
 		.id = 0x00,
 		.name = "ptcr",
 		.swgroup = TEGRA_SWGROUP_PTC,
+		.la = {
+			.reg = 0x34c,
+			.shift = 0,
+			.mask = 0xff,
+			.def = 0x0,
+		},
 	}, {
 		.id = 0x01,
 		.name = "display0a",
diff --git a/drivers/memory/tegra/tegra30.c b/drivers/memory/tegra/tegra30.c
index fcdd812eed80..b1990b4133d8 100644
--- a/drivers/memory/tegra/tegra30.c
+++ b/drivers/memory/tegra/tegra30.c
@@ -36,6 +36,12 @@ static const struct tegra_mc_client tegra30_mc_clients[] = {
 		.id = 0x00,
 		.name = "ptcr",
 		.swgroup = TEGRA_SWGROUP_PTC,
+		.la = {
+			.reg = 0x34c,
+			.shift = 0,
+			.mask = 0xff,
+			.def = 0x0,
+		},
 	}, {
 		.id = 0x01,
 		.name = "display0a",
-- 
2.27.0