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[109.252.192.83]) by smtp.gmail.com with ESMTPSA id m6sm640725ljc.112.2020.11.04.15.45.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Nov 2020 15:45:26 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Alan Stern , Peter Chen , Mark Brown , Liam Girdwood , Adrian Hunter , Krzysztof Kozlowski , Greg Kroah-Hartman , Lee Jones , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Ulf Hansson , Mauro Carvalho Chehab , Rob Herring , Marek Szyprowski , Peter Geis , Nicolas Chauvet Cc: linux-samsung-soc@vger.kernel.org, devel@driverdev.osuosl.org, linux-usb@vger.kernel.org, linux-pwm@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v1 22/30] memory: tegra20-emc: Support Tegra SoC device state syncing Date: Thu, 5 Nov 2020 02:44:19 +0300 Message-Id: <20201104234427.26477-23-digetx@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201104234427.26477-1-digetx@gmail.com> References: <20201104234427.26477-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Sync driver state using the Tegra SoC device state syncing API, telling to regulators voltage coupler that EMC state is ready for DVFS. This is required for enabling system-wide DVFS on Tegra20. Tested-by: Nicolas Chauvet Signed-off-by: Dmitry Osipenko --- drivers/memory/tegra/tegra20-emc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index 9946b957bb01..b1b0a2439689 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -1129,6 +1129,12 @@ static int tegra_emc_probe(struct platform_device *pdev) return err; } +static void tegra_emc_sync_state(struct device *dev) +{ + tegra_soc_device_sync_state(dev); + icc_sync_state(dev); +} + static const struct of_device_id tegra_emc_of_match[] = { { .compatible = "nvidia,tegra20-emc", }, {}, @@ -1141,7 +1147,7 @@ static struct platform_driver tegra_emc_driver = { .name = "tegra20-emc", .of_match_table = tegra_emc_of_match, .suppress_bind_attrs = true, - .sync_state = icc_sync_state, + .sync_state = tegra_emc_sync_state, }, }; module_platform_driver(tegra_emc_driver);