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[109.252.192.83]) by smtp.gmail.com with ESMTPSA id m6sm640725ljc.112.2020.11.04.15.45.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Nov 2020 15:45:27 -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 23/30] memory: tegra30-emc: Support Tegra SoC device state syncing Date: Thu, 5 Nov 2020 02:44:20 +0300 Message-Id: <20201104234427.26477-24-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-media@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 Tegra30. Tested-by: Peter Geis Signed-off-by: Dmitry Osipenko --- drivers/memory/tegra/tegra30-emc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c index 6b20ce9f16af..dd7474065346 100644 --- a/drivers/memory/tegra/tegra30-emc.c +++ b/drivers/memory/tegra/tegra30-emc.c @@ -1666,6 +1666,12 @@ static int tegra_emc_resume(struct device *dev) return 0; } +static void tegra_emc_sync_state(struct device *dev) +{ + tegra_soc_device_sync_state(dev); + icc_sync_state(dev); +} + static const struct dev_pm_ops tegra_emc_pm_ops = { .suspend = tegra_emc_suspend, .resume = tegra_emc_resume, @@ -1684,7 +1690,7 @@ static struct platform_driver tegra_emc_driver = { .of_match_table = tegra_emc_of_match, .pm = &tegra_emc_pm_ops, .suppress_bind_attrs = true, - .sync_state = icc_sync_state, + .sync_state = tegra_emc_sync_state, }, }; module_platform_driver(tegra_emc_driver);