From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Viresh Kumar <vireshk@kernel.org>,
Stephen Boyd <sboyd@kernel.org>,
Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: [PATCH v7 13/37] drm/tegra: hdmi: Add OPP support
Date: Fri, 2 Jul 2021 02:27:04 +0300 [thread overview]
Message-ID: <20210701232728.23591-14-digetx@gmail.com> (raw)
In-Reply-To: <20210701232728.23591-1-digetx@gmail.com>
The HDMI on Tegra belongs to the core power domain and we're going to
enable GENPD support for the core domain. Now HDMI driver must use
OPP API for driving the controller's clock rate because OPP API takes
care of reconfiguring the domain's performance state in accordance to
the clock rate. Add OPP support to the HDMI driver.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/gpu/drm/tegra/hdmi.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index e5d2a4026028..5b5d174c5a2b 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -11,10 +11,13 @@
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/pm_opp.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/reset.h>
+#include <soc/tegra/common.h>
+
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_debugfs.h>
@@ -1195,7 +1198,7 @@ static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder)
h_back_porch = mode->htotal - mode->hsync_end;
h_front_porch = mode->hsync_start - mode->hdisplay;
- err = clk_set_rate(hdmi->clk, hdmi->pixel_clock);
+ err = dev_pm_opp_set_rate(hdmi->dev, hdmi->pixel_clock);
if (err < 0) {
dev_err(hdmi->dev, "failed to set HDMI clock frequency: %d\n",
err);
@@ -1708,6 +1711,10 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
hdmi->output.dev = &pdev->dev;
+ err = devm_tegra_core_dev_init_opp_table_simple(&pdev->dev);
+ if (err)
+ return err;
+
err = tegra_output_probe(&hdmi->output);
if (err < 0)
return err;
--
2.30.2
next prev parent reply other threads:[~2021-07-01 23:29 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-01 23:26 [PATCH v7 00/37] NVIDIA Tegra power management patches for 5.15 Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 01/37] soc/tegra: pmc: Temporarily disable PMC state syncing Dmitry Osipenko
2021-08-12 16:02 ` Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 02/37] soc/tegra: pmc: Implement attach_dev() of power domain drivers Dmitry Osipenko
2021-08-02 14:48 ` Ulf Hansson
2021-08-02 18:23 ` Dmitry Osipenko
2021-08-04 9:59 ` Ulf Hansson
2021-08-04 21:16 ` Dmitry Osipenko
2021-08-09 14:15 ` Ulf Hansson
2021-08-09 23:56 ` Dmitry Osipenko
2021-08-10 10:51 ` Ulf Hansson
2021-08-11 19:30 ` Dmitry Osipenko
2021-08-11 22:41 ` Dmitry Osipenko
2021-08-12 1:40 ` Dmitry Osipenko
2021-08-12 11:17 ` Ulf Hansson
2021-08-12 16:24 ` Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 03/37] soc/tegra: Don't print error message when OPPs not available Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 04/37] soc/tegra: Add devm_tegra_core_dev_init_opp_table_simple() Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 05/37] dt-bindings: clock: tegra-car: Document new tegra-clocks node Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 06/37] clk: tegra: Support runtime PM and power domain Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 07/37] dt-bindings: host1x: Document OPP and power domain properties Dmitry Osipenko
2021-07-01 23:26 ` [PATCH v7 08/37] dt-bindings: host1x: Document Memory Client resets of Host1x, GR2D and GR3D Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 09/37] gpu: host1x: Add host1x_channel_stop() Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 10/37] gpu: host1x: Add runtime PM support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 11/37] gpu: host1x: Add stub driver for MPE, VI, EPP and ISP Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 12/37] drm/tegra: dc: Support OPP and SoC core voltage scaling Dmitry Osipenko
2021-07-01 23:27 ` Dmitry Osipenko [this message]
2021-07-01 23:27 ` [PATCH v7 14/37] drm/tegra: gr2d: Support OPP and power management Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 15/37] drm/tegra: gr3d: " Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 16/37] drm/tegra: vic: Stop channel before suspending Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 17/37] usb: chipidea: tegra: Add runtime PM support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 18/37] bus: tegra-gmi: " Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 19/37] pwm: tegra: Add runtime PM and OPP support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 20/37] mmc: sdhci-tegra: " Dmitry Osipenko
2021-07-02 3:39 ` kernel test robot
2021-07-01 23:27 ` [PATCH v7 21/37] mtd: rawnand: tegra: Add runtime PM support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 22/37] soc/tegra: fuse: Clear fuse->clk on driver probe failure Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 23/37] soc/tegra: fuse: Add runtime PM support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 24/37] soc/tegra: fuse: Enable fuse clock on suspend Dmitry Osipenko
2021-07-21 16:00 ` Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 25/37] clk: tegra: Remove CLK_IS_CRITICAL flag from fuse clock Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 26/37] spi: tegra20-slink: Improve runtime PM usage Dmitry Osipenko
2021-07-02 8:29 ` kernel test robot
2021-07-01 23:27 ` [PATCH v7 27/37] spi: tegra20-slink: Add OPP support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 28/37] memory: tegra20-emc: Add minimal runtime PM support Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 29/37] memory: tegra30-emc: " Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 30/37] media: dt: bindings: tegra-vde: Convert to schema Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 31/37] media: dt: bindings: tegra-vde: Document OPP and power domain Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 32/37] media: staging: tegra-vde: Support generic " Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 33/37] ARM: tegra: Add OPP tables and power domains to Tegra20 device-trees Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 34/37] ARM: tegra: Add OPP tables and power domains to Tegra30 device-trees Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 35/37] ARM: tegra: Add Memory Client resets to Tegra20 GR2D, GR3D and Host1x Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 36/37] ARM: tegra: Add Memory Client resets to Tegra30 " Dmitry Osipenko
2021-07-01 23:27 ` [PATCH v7 37/37] soc/tegra: pmc: Enable core domain support on Tegra20 and Tegra30 Dmitry Osipenko
2021-07-09 13:01 ` [PATCH v7 00/37] NVIDIA Tegra power management patches for 5.15 Ulf Hansson
2021-07-09 21:23 ` Dmitry Osipenko
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