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Move Mediatek HDMI PHY driver from DRM folder to PHY folder

PATCH Superseded Chun-Kuang Hu 2 participants 6 messages Mar 22, 2020

Subsystems (5)

v1 of 5 Superseded Latest is v5 →

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Chun-Kuang Hu

author maintainer
#0 lore raw

cover Move Mediatek HDMI PHY driver from DRM folder to PHY folder

mtk_hdmi_phy is currently placed inside mediatek drm driver, but it's more suitable to place a phy driver into phy driver folder, so move mtk_hdmi_phy driver into phy driver folder.

CK Hu (3):
drm/mediatek: Move tz_disabled from mtk_hdmi_phy to mtk_hdmi driver drm/mediatek: Separate mtk_hdmi_phy to an independent module drm/mediatek: Move mtk_hdmi_phy driver into drivers/phy/mediatek
folder

Chun-Kuang Hu (1):
MAINTAINERS: add files for Mediatek DRM drivers

 MAINTAINERS                                   |  1 +
 drivers/gpu/drm/mediatek/Kconfig              |  2 +-
 drivers/gpu/drm/mediatek/Makefile             |  5 +---
 drivers/gpu/drm/mediatek/mtk_hdmi.c           | 23 +++++++++++++++----
 drivers/gpu/drm/mediatek/mtk_hdmi.h           |  1 -
 drivers/phy/mediatek/Kconfig                  |  7 ++++++
 drivers/phy/mediatek/Makefile                 |  7 ++++++
 .../mediatek/phy-mtk-hdmi-mt2701.c}           |  3 +--
 .../mediatek/phy-mtk-hdmi-mt8173.c}           |  2 +-
 .../mediatek/phy-mtk-hdmi.c}                  |  3 ++-
 .../mediatek/phy-mtk-hdmi.h}                  |  2 --
 11 files changed, 40 insertions(+), 16 deletions(-)
 rename drivers/{gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi-mt2701.c} (99%)
 rename drivers/{gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi-mt8173.c} (99%)
 rename drivers/{gpu/drm/mediatek/mtk_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi.c} (98%)
 rename drivers/{gpu/drm/mediatek/mtk_hdmi_phy.h => phy/mediatek/phy-mtk-hdmi.h} (95%)
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https://lists.freedesktop.org/mailman/listinfo/dri-devel
author maintainer
#1 lore raw

PATCH 1/4 drm/mediatek: Move tz_disabled from mtk_hdmi_phy to mtk_hdmi driver

From: CK Hu <[email protected]>

tz_disabled is used to control mtk_hdmi output signal, but this variable is stored in mtk_hdmi_phy and mtk_hdmi_phy does not use it. So move tz_disabled to mtk_hdmi where it's used.

---
 drivers/gpu/drm/mediatek/mtk_hdmi.c           | 22 ++++++++++++++++---
 drivers/gpu/drm/mediatek/mtk_hdmi_phy.h       |  1 -
 .../gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c    |  1 -
 3 files changed, 19 insertions(+), 5 deletions(-)
drivers/gpu/drm/mediatek/mtk_hdmi.c +19 -3
index 5e4a4dbda443..878433c09c9b 100644
@@ -144,11 +144,16 @@ struct hdmi_audio_param {
 	struct hdmi_codec_params codec_params;
 };
 
+struct mtk_hdmi_conf {
+	bool tz_disabled;
+};
+
 struct mtk_hdmi {
 	struct drm_bridge bridge;
 	struct drm_bridge *next_bridge;
 	struct drm_connector conn;
 	struct device *dev;
+	const struct mtk_hdmi_conf *conf;
 	struct phy *phy;
 	struct device *cec_dev;
 	struct i2c_adapter *ddc_adpt;
@@ -230,7 +235,6 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
 static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
 {
 	struct arm_smccc_res res;
-	struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(hdmi->phy);
 
 	/*
 	 * MT8173 HDMI hardware has an output control bit to enable/disable HDMI
@@ -238,7 +242,7 @@ static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
 	 * The ARM trusted firmware provides an API for the HDMI driver to set
 	 * this control bit to enable HDMI output in supervisor mode.
 	 */
-	if (hdmi_phy->conf && hdmi_phy->conf->tz_disabled)
+	if (hdmi->conf->tz_disabled)
 		regmap_update_bits(hdmi->sys_regmap,
 				   hdmi->sys_offset + HDMI_SYS_CFG20,
 				   0x80008005, enable ? 0x80000005 : 0x8000);
@@ -1688,6 +1692,7 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	hdmi->dev = dev;
+	hdmi->conf = of_device_get_match_data(dev);
 
 	ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
 	if (ret)
@@ -1765,8 +1770,19 @@ static int mtk_hdmi_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
 			 mtk_hdmi_suspend, mtk_hdmi_resume);
 
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
+	.tz_disabled = true,
+};
+
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8173;
+
 static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
-	{ .compatible = "mediatek,mt8173-hdmi", },
+	{ .compatible = "mediatek,mt2701-hdmi",
+	  .data = &mtk_hdmi_conf_mt2701,
+	},
+	{ .compatible = "mediatek,mt8173-hdmi",
+	  .data = &mtk_hdmi_conf_mt8173,
+	},
 	{}
 };
 
drivers/gpu/drm/mediatek/mtk_hdmi_phy.h +0 -1
index 2d8b3182470d..fc1c2efd1128 100644
@@ -20,7 +20,6 @@
 struct mtk_hdmi_phy;
 
 struct mtk_hdmi_phy_conf {
-	bool tz_disabled;
 	unsigned long flags;
 	const struct clk_ops *hdmi_phy_clk_ops;
 	void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c +0 -1
index d3cc4022e988..99fe05cd3598 100644
@@ -237,7 +237,6 @@ static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
 }
 
 struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = {
-	.tz_disabled = true,
 	.flags = CLK_SET_RATE_GATE,
 	.hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops,
 	.hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
Signature · 1 line
2.17.1
author maintainer
#2 lore raw

PATCH 2/4 drm/mediatek: Separate mtk_hdmi_phy to an independent module

In reply to Chun-Kuang Hu

From: CK Hu <[email protected]>

mtk_hdmi_phy is a part of mtk_hdmi module, but phy driver should be an independent module rather than be part of drm module, so separate the phy driver to an independent module.

---
 drivers/gpu/drm/mediatek/Kconfig        |  9 ++++++++-
 drivers/gpu/drm/mediatek/Makefile       | 11 +++++++----
 drivers/gpu/drm/mediatek/mtk_hdmi.c     |  1 -
 drivers/gpu/drm/mediatek/mtk_hdmi.h     |  1 -
 drivers/gpu/drm/mediatek/mtk_hdmi_phy.c |  1 +
 drivers/gpu/drm/mediatek/mtk_hdmi_phy.h |  1 -
 6 files changed, 16 insertions(+), 8 deletions(-)
drivers/gpu/drm/mediatek/Kconfig +8 -1
index fa5ffc4fe823..ff6a1eb4ae83 100644
@@ -23,6 +23,13 @@ config DRM_MEDIATEK_HDMI
 	tristate "DRM HDMI Support for Mediatek SoCs"
 	depends on DRM_MEDIATEK
 	select SND_SOC_HDMI_CODEC if SND_SOC
-	select GENERIC_PHY
+	select PHY_MTK_HDMI
 	help
 	  DRM/KMS HDMI driver for Mediatek SoCs
+
+config PHY_MTK_HDMI
+    tristate "MediaTek HDMI-PHY Driver"
+    depends on ARCH_MEDIATEK && OF
+    select GENERIC_PHY
+    help
+          Enable this to support HDMI-PHY
drivers/gpu/drm/mediatek/Makefile +7 -4
index b7a82ed5788f..fcbef23aa6ce 100644
@@ -19,9 +19,12 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
 
 mediatek-drm-hdmi-objs := mtk_cec.o \
 			  mtk_hdmi.o \
-			  mtk_hdmi_ddc.o \
-			  mtk_mt2701_hdmi_phy.o \
-			  mtk_mt8173_hdmi_phy.o \
-			  mtk_hdmi_phy.o
+			  mtk_hdmi_ddc.o
 
 obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
+
+phy-mtk-hdmi-drv-objs := mtk_hdmi_phy.o \
+			 mtk_mt2701_hdmi_phy.o \
+			 mtk_mt8173_hdmi_phy.o
+
+obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
drivers/gpu/drm/mediatek/mtk_hdmi.c +0 -1
index 878433c09c9b..17399bdae22d 100644
@@ -1797,7 +1797,6 @@ static struct platform_driver mtk_hdmi_driver = {
 };
 
 static struct platform_driver * const mtk_hdmi_drivers[] = {
-	&mtk_hdmi_phy_driver,
 	&mtk_hdmi_ddc_driver,
 	&mtk_cec_driver,
 	&mtk_hdmi_driver,
drivers/gpu/drm/mediatek/mtk_hdmi.h +0 -1
index bb3653de6bd1..472bf141c92b 100644
@@ -5,7 +5,6 @@
  */
 #ifndef _MTK_HDMI_CTRL_H
 #define _MTK_HDMI_CTRL_H
-#include "mtk_hdmi_phy.h"
 
 struct platform_driver;
 
drivers/gpu/drm/mediatek/mtk_hdmi_phy.c +1 -0
index 5223498502c4..fe022acddbef 100644
@@ -205,6 +205,7 @@ struct platform_driver mtk_hdmi_phy_driver = {
 		.of_match_table = mtk_hdmi_phy_match,
 	},
 };
+module_platform_driver(mtk_hdmi_phy_driver);
 
 MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");
 MODULE_LICENSE("GPL v2");
drivers/gpu/drm/mediatek/mtk_hdmi_phy.h +0 -1
index fc1c2efd1128..b13e1d5f8e78 100644
@@ -49,7 +49,6 @@ void mtk_hdmi_phy_mask(struct mtk_hdmi_phy *hdmi_phy, u32 offset,
 		       u32 val, u32 mask);
 struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw);
 
-extern struct platform_driver mtk_hdmi_phy_driver;
 extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
 extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;
 
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#3 lore raw

Re: [PATCH 2/4] drm/mediatek: Separate mtk_hdmi_phy to an independent module

I love your patch! Yet something to improve:

Hi Chun-Kuang,

I love your patch! Yet something to improve:

[auto build test ERROR on v5.6-rc6]
[also build test ERROR on next-20200320]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Chun-Kuang-Hu/Move-Mediatek-HDMI-PHY-driver-from-DRM-folder-to-PHY-folder/20200323-035012
base:    fb33c6510d5595144d585aa194d377cf74d31911
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.2.0

reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=9.2.0 make.cross ARCH=arm

If you fix the issue, kindly add following tag

All error/warnings (new ones prefixed by >>):

>> drivers/gpu/drm/mediatek/mtk_hdmi.c:1817:1: warning: data definition has no type or storage class
    1817 | module_init(mtk_hdmitx_init);
         | ^~~~~~~~~~~
>> drivers/gpu/drm/mediatek/mtk_hdmi.c:1817:1: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int]
>> drivers/gpu/drm/mediatek/mtk_hdmi.c:1817:1: warning: parameter names (without types) in function declaration
   drivers/gpu/drm/mediatek/mtk_hdmi.c:1818:1: warning: data definition has no type or storage class
    1818 | module_exit(mtk_hdmitx_exit);
         | ^~~~~~~~~~~
>> drivers/gpu/drm/mediatek/mtk_hdmi.c:1818:1: error: type defaults to 'int' in declaration of 'module_exit' [-Werror=implicit-int]
   drivers/gpu/drm/mediatek/mtk_hdmi.c:1818:1: warning: parameter names (without types) in function declaration
>> drivers/gpu/drm/mediatek/mtk_hdmi.c:1820:15: error: expected declaration specifiers or '...' before string constant
    1820 | MODULE_AUTHOR("Jie Qiu <[email protected]>");
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/mediatek/mtk_hdmi.c:1821:20: error: expected declaration specifiers or '...' before string constant
    1821 | MODULE_DESCRIPTION("MediaTek HDMI Driver");
         |                    ^~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/mediatek/mtk_hdmi.c:1822:16: error: expected declaration specifiers or '...' before string constant
    1822 | MODULE_LICENSE("GPL v2");
         |                ^~~~~~~~

drivers/gpu/drm/mediatek/mtk_hdmi.c:1811:20: warning: 'mtk_hdmitx_exit' defined but not used [-Wunused-function]
1811 | static void __exit mtk_hdmitx_exit(void)
| ^~~~~~~~~~~~~~~
drivers/gpu/drm/mediatek/mtk_hdmi.c:1805:19: warning: 'mtk_hdmitx_init' defined but not used [-Wunused-function]
1805 | static int __init mtk_hdmitx_init(void)
| ^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +1817 drivers/gpu/drm/mediatek/mtk_hdmi.c

8f83f26891e125 Jie Qiu 2016-01-04 1816
8f83f26891e125 Jie Qiu 2016-01-04 @1817 module_init(mtk_hdmitx_init); 8f83f26891e125 Jie Qiu 2016-01-04 @1818 module_exit(mtk_hdmitx_exit); 8f83f26891e125 Jie Qiu 2016-01-04 1819
8f83f26891e125 Jie Qiu 2016-01-04 @1820 MODULE_AUTHOR("Jie Qiu <[email protected]>");

:::::: The code at line 1817 was first introduced by commit :::::: 8f83f26891e12570780dcfc8ae376b655915ff6d drm/mediatek: Add HDMI support

:::::: TO: Jie Qiu <[email protected]>
:::::: CC: Philipp Zabel <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

author maintainer
#4 lore raw

PATCH 3/4 drm/mediatek: Move mtk_hdmi_phy driver into drivers/phy/mediatek folder

In reply to Chun-Kuang Hu

From: CK Hu <[email protected]>

mtk_hdmi_phy is currently placed inside mediatek drm driver, but it's more suitable to place a phy driver into phy driver folder, so move mtk_hdmi_phy driver into phy driver folder.

---
 drivers/gpu/drm/mediatek/Kconfig                           | 7 -------
 drivers/gpu/drm/mediatek/Makefile                          | 6 ------
 drivers/phy/mediatek/Kconfig                               | 7 +++++++
 drivers/phy/mediatek/Makefile                              | 7 +++++++
 .../mediatek/phy-mtk-hdmi-mt2701.c}                        | 2 +-
 .../mediatek/phy-mtk-hdmi-mt8173.c}                        | 2 +-
 .../mtk_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi.c}         | 2 +-
 .../mtk_hdmi_phy.h => phy/mediatek/phy-mtk-hdmi.h}         | 0
 8 files changed, 17 insertions(+), 16 deletions(-)
 rename drivers/{gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi-mt2701.c} (99%)
 rename drivers/{gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi-mt8173.c} (99%)
 rename drivers/{gpu/drm/mediatek/mtk_hdmi_phy.c => phy/mediatek/phy-mtk-hdmi.c} (99%)
 rename drivers/{gpu/drm/mediatek/mtk_hdmi_phy.h => phy/mediatek/phy-mtk-hdmi.h} (100%)
drivers/gpu/drm/mediatek/Kconfig +0 -7
index ff6a1eb4ae83..2427d5bf699d 100644
@@ -26,10 +26,3 @@ config DRM_MEDIATEK_HDMI
 	select PHY_MTK_HDMI
 	help
 	  DRM/KMS HDMI driver for Mediatek SoCs
-
-config PHY_MTK_HDMI
-    tristate "MediaTek HDMI-PHY Driver"
-    depends on ARCH_MEDIATEK && OF
-    select GENERIC_PHY
-    help
-          Enable this to support HDMI-PHY
drivers/gpu/drm/mediatek/Makefile +0 -6
index fcbef23aa6ce..77b0fd86063d 100644
@@ -22,9 +22,3 @@ mediatek-drm-hdmi-objs := mtk_cec.o \
 			  mtk_hdmi_ddc.o
 
 obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
-
-phy-mtk-hdmi-drv-objs := mtk_hdmi_phy.o \
-			 mtk_mt2701_hdmi_phy.o \
-			 mtk_mt8173_hdmi_phy.o
-
-obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
drivers/phy/mediatek/Kconfig +7 -0
index dee757c957f2..10f0ec2d5b54 100644
@@ -35,3 +35,10 @@ config PHY_MTK_XSPHY
 	  Enable this to support the SuperSpeedPlus XS-PHY transceiver for
 	  USB3.1 GEN2 controllers on MediaTek chips. The driver supports
 	  multiple USB2.0, USB3.1 GEN2 ports.
+
+config PHY_MTK_HDMI
+    tristate "MediaTek HDMI-PHY Driver"
+    depends on ARCH_MEDIATEK && OF
+    select GENERIC_PHY
+    help
+          Enable this to support HDMI-PHY
drivers/phy/mediatek/Makefile +7 -0
index 08a8e6a97b1e..cda074c53235 100644
@@ -6,3 +6,10 @@
 obj-$(CONFIG_PHY_MTK_TPHY)		+= phy-mtk-tphy.o
 obj-$(CONFIG_PHY_MTK_UFS)		+= phy-mtk-ufs.o
 obj-$(CONFIG_PHY_MTK_XSPHY)		+= phy-mtk-xsphy.o
+
+phy-mtk-hdmi-drv-objs := phy-mtk-hdmi.o \
+			 phy-mtk-hdmi-mt2701.o \
+			 phy-mtk-hdmi-mt8173.o
+
+obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
+
drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c renamed from drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c +1 -1
similarity index 99%
rename from drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
rename to drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c
index 99fe05cd3598..a6cb1dea3d0c 100644
@@ -4,7 +4,7 @@
  * Author: Chunhui Dai <[email protected]>
  */
 
-#include "mtk_hdmi_phy.h"
+#include "phy-mtk-hdmi.h"
 
 #define HDMI_CON0	0x00
 #define RG_HDMITX_DRV_IBIAS		0
drivers/phy/mediatek/phy-mtk-hdmi-mt8173.c renamed from drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c +1 -1
similarity index 99%
rename from drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c
rename to drivers/phy/mediatek/phy-mtk-hdmi-mt8173.c
index b55f51675205..3521c4893c53 100644
@@ -4,7 +4,7 @@
  * Author: Jie Qiu <[email protected]>
  */
 
-#include "mtk_hdmi_phy.h"
+#include "phy-mtk-hdmi.h"
 
 #define HDMI_CON0		0x00
 #define RG_HDMITX_PLL_EN		BIT(31)
drivers/phy/mediatek/phy-mtk-hdmi.c renamed from drivers/gpu/drm/mediatek/mtk_hdmi_phy.c +1 -1
similarity index 99%
rename from drivers/gpu/drm/mediatek/mtk_hdmi_phy.c
rename to drivers/phy/mediatek/phy-mtk-hdmi.c
index fe022acddbef..8fc83f01a720 100644
@@ -4,7 +4,7 @@
  * Author: Jie Qiu <[email protected]>
  */
 
-#include "mtk_hdmi_phy.h"
+#include "phy-mtk-hdmi.h"
 
 static int mtk_hdmi_phy_power_on(struct phy *phy);
 static int mtk_hdmi_phy_power_off(struct phy *phy);
drivers/phy/mediatek/phy-mtk-hdmi.h renamed from drivers/gpu/drm/mediatek/mtk_hdmi_phy.h +0 -0
similarity index 100%
rename from drivers/gpu/drm/mediatek/mtk_hdmi_phy.h
rename to drivers/phy/mediatek/phy-mtk-hdmi.h
Signature · 1 line
2.17.1
author maintainer
#5 lore raw

PATCH 4/4 MAINTAINERS: add files for Mediatek DRM drivers

In reply to Chun-Kuang Hu

Mediatek HDMI phy driver is moved from drivers/gpu/drm/mediatek to drivers/phy/mediatek, so add the new folder to the Mediatek DRM drivers' information.

---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)
MAINTAINERS +1 -0
index 38fe2f3f7b6f..129777037538 100644
@@ -5612,6 +5612,7 @@ M:	Philipp Zabel <[email protected]>
 L:	[email protected]
 S:	Supported
 F:	drivers/gpu/drm/mediatek/
+F:	drivers/phy/mediatek/phy-mtk-hdmi*
 F:	Documentation/devicetree/bindings/display/mediatek/
 
 DRM DRIVERS FOR NVIDIA TEGRA
Signature · 1 line
2.17.1