* [PATCH 0/2] DRM: ARC: add HDMI 2.0 TX encoder support
@ 2020-03-16 14:46 Eugeniy Paltsev
2020-03-16 14:46 ` [PATCH 1/2] " Eugeniy Paltsev
2020-03-16 14:46 ` [PATCH 2/2] dt-bindings: Document the Synopsys ARC HDMI TX bindings Eugeniy Paltsev
0 siblings, 2 replies; 4+ messages in thread
From: Eugeniy Paltsev @ 2020-03-16 14:46 UTC (permalink / raw)
To: dri-devel, Alexey Brodkin
Cc: devicetree, David Airlie, linux-kernel, Rob Herring,
linux-snps-arc, Eugeniy Paltsev
Eugeniy Paltsev (2):
DRM: ARC: add HDMI 2.0 TX encoder support
dt-bindings: Document the Synopsys ARC HDMI TX bindings
.../display/bridge/snps,arc-dw-hdmi.txt | 73 ++++++++++
MAINTAINERS | 6 +
drivers/gpu/drm/Makefile | 2 +-
drivers/gpu/drm/arc/Kconfig | 7 +
drivers/gpu/drm/arc/Makefile | 1 +
drivers/gpu/drm/arc/arc-dw-hdmi.c | 126 ++++++++++++++++++
6 files changed, 214 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
create mode 100644 drivers/gpu/drm/arc/arc-dw-hdmi.c
--
2.21.1
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 1/2] DRM: ARC: add HDMI 2.0 TX encoder support
2020-03-16 14:46 [PATCH 0/2] DRM: ARC: add HDMI 2.0 TX encoder support Eugeniy Paltsev
@ 2020-03-16 14:46 ` Eugeniy Paltsev
2020-03-16 14:46 ` [PATCH 2/2] dt-bindings: Document the Synopsys ARC HDMI TX bindings Eugeniy Paltsev
1 sibling, 0 replies; 4+ messages in thread
From: Eugeniy Paltsev @ 2020-03-16 14:46 UTC (permalink / raw)
To: dri-devel, Alexey Brodkin
Cc: devicetree, David Airlie, linux-kernel, Rob Herring,
linux-snps-arc, Eugeniy Paltsev
The Synopsys ARC SoCs (like HSDK4xD) include on-chip DesignWare HDMI
encoders. Support them with a platform driver to provide platform glue
data to the dw-hdmi driver.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
MAINTAINERS | 6 ++
drivers/gpu/drm/Makefile | 2 +-
drivers/gpu/drm/arc/Kconfig | 7 ++
drivers/gpu/drm/arc/Makefile | 1 +
drivers/gpu/drm/arc/arc-dw-hdmi.c | 126 ++++++++++++++++++++++++++++++
5 files changed, 141 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/arc/arc-dw-hdmi.c
diff --git a/MAINTAINERS b/MAINTAINERS
index a6fbdf354d34..a6dd992c5f95 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1258,6 +1258,12 @@ S: Supported
F: drivers/gpu/drm/arc/
F: Documentation/devicetree/bindings/display/snps,arcpgu.txt
+ARC DW HDMI DRIVER
+M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+S: Supported
+F: drivers/gpu/drm/arc/arc-dw-hdmi.c
+F: Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
+
ARCNET NETWORK LAYER
M: Michael Grzeschik <m.grzeschik@pengutronix.de>
L: netdev@vger.kernel.org
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 6493088a0fdd..5b0bcf7f45cd 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -109,7 +109,7 @@ obj-y += panel/
obj-y += bridge/
obj-$(CONFIG_DRM_FSL_DCU) += fsl-dcu/
obj-$(CONFIG_DRM_ETNAVIV) += etnaviv/
-obj-$(CONFIG_DRM_ARCPGU)+= arc/
+obj-y += arc/
obj-y += hisilicon/
obj-$(CONFIG_DRM_ZTE) += zte/
obj-$(CONFIG_DRM_MXSFB) += mxsfb/
diff --git a/drivers/gpu/drm/arc/Kconfig b/drivers/gpu/drm/arc/Kconfig
index e8f3d63e0b91..baec9d2a4fba 100644
--- a/drivers/gpu/drm/arc/Kconfig
+++ b/drivers/gpu/drm/arc/Kconfig
@@ -8,3 +8,10 @@ config DRM_ARCPGU
Choose this option if you have an ARC PGU controller.
If M is selected the module will be called arcpgu.
+
+config DRM_ARC_DW_HDMI
+ tristate "ARC DW HDMI"
+ depends on DRM && OF
+ select DRM_DW_HDMI
+ help
+ Synopsys DW HDMI driver for various ARC development boards
diff --git a/drivers/gpu/drm/arc/Makefile b/drivers/gpu/drm/arc/Makefile
index c7028b7427b3..7a156d8c2c3c 100644
--- a/drivers/gpu/drm/arc/Makefile
+++ b/drivers/gpu/drm/arc/Makefile
@@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
arcpgu-y := arcpgu_crtc.o arcpgu_hdmi.o arcpgu_sim.o arcpgu_drv.o
obj-$(CONFIG_DRM_ARCPGU) += arcpgu.o
+obj-$(CONFIG_DRM_ARC_DW_HDMI) += arc-dw-hdmi.o
diff --git a/drivers/gpu/drm/arc/arc-dw-hdmi.c b/drivers/gpu/drm/arc/arc-dw-hdmi.c
new file mode 100644
index 000000000000..4869dd668a51
--- /dev/null
+++ b/drivers/gpu/drm/arc/arc-dw-hdmi.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Synopsys DW HDMI driver for various ARC development boards
+//
+// Copyright (C) 2020 Synopsys
+// Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <drm/bridge/dw_hdmi.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_encoder_slave.h>
+#include <drm/drm_of.h>
+
+static const struct dw_hdmi_mpll_config snps_hdmi_mpll_cfg[] = {
+ {
+ 27000000, {
+ { 0x00B3, 0x0000 },
+ { 0x00B3, 0x0000 },
+ { 0x00B3, 0x0000 }
+ },
+ }, {
+ 74250000, {
+ { 0x0072, 0x0001},
+ { 0x0072, 0x0001},
+ { 0x0072, 0x0001}
+ },
+ }, {
+ 148500000, {
+ { 0x0051, 0x0002},
+ { 0x0051, 0x0002},
+ { 0x0051, 0x0002}
+ },
+ }, {
+ ~0UL, {
+ { 0x00B3, 0x0000 },
+ { 0x00B3, 0x0000 },
+ { 0x00B3, 0x0000 },
+ },
+ }
+};
+
+static const struct dw_hdmi_curr_ctrl snps_hdmi_cur_ctr[] = {
+ /* pixelclk bpp8 bpp10 bpp12 */
+ { 27000000, { 0x0000, 0x0000, 0x0000 }, },
+ { 74250000, { 0x0008, 0x0008, 0x0008 }, },
+ { 148500000, { 0x001b, 0x001b, 0x001b }, },
+ { ~0UL, { 0x0000, 0x0000, 0x0000 }, }
+};
+
+
+static const struct dw_hdmi_phy_config snps_hdmi_phy_config[] = {
+ /* pixelclk symbol term vlev */
+ { 27000000, 0x8009, 0x0004, 0x0232},
+ { 74250000, 0x8009, 0x0004, 0x0232},
+ { 148500000, 0x8009, 0x0004, 0x0232},
+ { ~0UL, 0x8009, 0x0004, 0x0232}
+};
+
+static enum drm_mode_status snps_dw_hdmi_mode_valid(struct drm_connector *con,
+ const struct drm_display_mode *mode)
+{
+ return MODE_OK;
+}
+
+static struct dw_hdmi_plat_data snps_dw_hdmi_drv_data = {
+ .mpll_cfg = snps_hdmi_mpll_cfg,
+ .cur_ctr = snps_hdmi_cur_ctr,
+ .phy_config = snps_hdmi_phy_config,
+ .mode_valid = snps_dw_hdmi_mode_valid,
+};
+
+static const struct of_device_id snps_dw_hdmi_dt_ids[] = {
+ {
+ .compatible = "snps,dw-hdmi-hsdk",
+ .data = &snps_dw_hdmi_drv_data
+ }, { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, snps_dw_hdmi_dt_ids);
+
+static int snps_dw_hdmi_probe(struct platform_device *pdev)
+{
+ const struct dw_hdmi_plat_data *plat_data;
+ const struct of_device_id *match;
+ struct dw_hdmi *hdmi;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ match = of_match_node(snps_dw_hdmi_dt_ids, pdev->dev.of_node);
+ plat_data = match->data;
+
+ hdmi = dw_hdmi_probe(pdev, plat_data);
+ if (IS_ERR(hdmi))
+ return PTR_ERR(hdmi);
+
+ platform_set_drvdata(pdev, hdmi);
+
+ return 0;
+}
+
+static int snps_dw_hdmi_remove(struct platform_device *pdev)
+{
+ struct dw_hdmi *hdmi = platform_get_drvdata(pdev);
+
+ dw_hdmi_remove(hdmi);
+
+ return 0;
+}
+
+static struct platform_driver snps_dw_hdmi_platform_driver = {
+ .probe = snps_dw_hdmi_probe,
+ .remove = snps_dw_hdmi_remove,
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .of_match_table = snps_dw_hdmi_dt_ids,
+ },
+};
+module_platform_driver(snps_dw_hdmi_platform_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ARC specific DW-HDMI driver extension");
+MODULE_AUTHOR("Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>");
--
2.21.1
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^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 2/2] dt-bindings: Document the Synopsys ARC HDMI TX bindings
2020-03-16 14:46 [PATCH 0/2] DRM: ARC: add HDMI 2.0 TX encoder support Eugeniy Paltsev
2020-03-16 14:46 ` [PATCH 1/2] " Eugeniy Paltsev
@ 2020-03-16 14:46 ` Eugeniy Paltsev
2020-03-16 15:05 ` Sam Ravnborg
1 sibling, 1 reply; 4+ messages in thread
From: Eugeniy Paltsev @ 2020-03-16 14:46 UTC (permalink / raw)
To: dri-devel, Alexey Brodkin
Cc: devicetree, David Airlie, linux-kernel, Rob Herring,
linux-snps-arc, Eugeniy Paltsev
This patch adds documentation of device tree bindings for the Synopsys
HDMI 2.0 TX encoder driver for ARC SoCs.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
.../display/bridge/snps,arc-dw-hdmi.txt | 73 +++++++++++++++++++
1 file changed, 73 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
diff --git a/Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt b/Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
new file mode 100644
index 000000000000..d5e006b392cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
@@ -0,0 +1,73 @@
+Synopsys DesignWare HDMI 2.0 TX encoder driver for ARC SoCs
+================================
+
+The HDMI transmitter is a Synopsys DesignWare HDMI 2.0 TX controller IP
+with a companion of Synopsys DesignWare HDMI 2.0 TX PHY IP.
+
+These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
+Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt
+with the following device-specific properties.
+
+
+Required properties:
+
+- compatible : Shall contain
+ - "snps,dw-hdmi-hsdk" for HSDK4xD compatible HDMI TX
+
+- reg: See dw_hdmi.txt.
+- interrupts: HDMI interrupt number.
+- clocks: See dw_hdmi.txt.
+- clock-names: Must contain "iahb" and "isfr" as defined in dw_hdmi.txt.
+- ports: See dw_hdmi.txt. The DWC HDMI shall have one port numbered 0
+ corresponding to the video input of the controller and one port numbered 1
+ corresponding to its HDMI output.
+
+Example:
+
+hdmi: hdmi@0x10000 {
+ compatible = "snps,dw-hdmi-hsdk";
+ reg = <0x10000 0x10000>;
+ reg-io-width = <4>;
+ interrupts = <14>;
+ clocks = <&apbclk>, <&hdmi_pix_clk>;
+ clock-names = "iahb", "isfr";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ hdmi_enc_input: endpoint {
+ remote-endpoint = <&pgu_output>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ hdmi_enc_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+};
+
+hdmi-out {
+ ...
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&hdmi_enc_out>;
+ };
+ };
+};
+
+pgu {
+ ...
+
+ port_o: port {
+ pgu_output: endpoint {
+ remote-endpoint = <&hdmi_enc_input>;
+ };
+ };
+};
--
2.21.1
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^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH 2/2] dt-bindings: Document the Synopsys ARC HDMI TX bindings
2020-03-16 14:46 ` [PATCH 2/2] dt-bindings: Document the Synopsys ARC HDMI TX bindings Eugeniy Paltsev
@ 2020-03-16 15:05 ` Sam Ravnborg
0 siblings, 0 replies; 4+ messages in thread
From: Sam Ravnborg @ 2020-03-16 15:05 UTC (permalink / raw)
To: Eugeniy Paltsev
Cc: devicetree, David Airlie, Alexey Brodkin, linux-kernel,
dri-devel, Rob Herring, linux-snps-arc
Hi Eugeniy.
On Mon, Mar 16, 2020 at 05:46:47PM +0300, Eugeniy Paltsev wrote:
> This patch adds documentation of device tree bindings for the Synopsys
> HDMI 2.0 TX encoder driver for ARC SoCs.
>
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
> ---
> .../display/bridge/snps,arc-dw-hdmi.txt | 73 +++++++++++++++++++
New bindings in DT Schema format please (.yaml files).
We are working on migrating all bindings to DT Schema format.
Sam
> 1 file changed, 73 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt b/Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
> new file mode 100644
> index 000000000000..d5e006b392cc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/snps,arc-dw-hdmi.txt
> @@ -0,0 +1,73 @@
> +Synopsys DesignWare HDMI 2.0 TX encoder driver for ARC SoCs
> +================================
> +
> +The HDMI transmitter is a Synopsys DesignWare HDMI 2.0 TX controller IP
> +with a companion of Synopsys DesignWare HDMI 2.0 TX PHY IP.
> +
> +These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
> +Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt
> +with the following device-specific properties.
> +
> +
> +Required properties:
> +
> +- compatible : Shall contain
> + - "snps,dw-hdmi-hsdk" for HSDK4xD compatible HDMI TX
> +
> +- reg: See dw_hdmi.txt.
> +- interrupts: HDMI interrupt number.
> +- clocks: See dw_hdmi.txt.
> +- clock-names: Must contain "iahb" and "isfr" as defined in dw_hdmi.txt.
> +- ports: See dw_hdmi.txt. The DWC HDMI shall have one port numbered 0
> + corresponding to the video input of the controller and one port numbered 1
> + corresponding to its HDMI output.
> +
> +Example:
> +
> +hdmi: hdmi@0x10000 {
> + compatible = "snps,dw-hdmi-hsdk";
> + reg = <0x10000 0x10000>;
> + reg-io-width = <4>;
> + interrupts = <14>;
> + clocks = <&apbclk>, <&hdmi_pix_clk>;
> + clock-names = "iahb", "isfr";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + hdmi_enc_input: endpoint {
> + remote-endpoint = <&pgu_output>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + hdmi_enc_out: endpoint {
> + remote-endpoint = <&hdmi_con>;
> + };
> + };
> + };
> +};
> +
> +hdmi-out {
> + ...
> +
> + port {
> + hdmi_con: endpoint {
> + remote-endpoint = <&hdmi_enc_out>;
> + };
> + };
> +};
> +
> +pgu {
> + ...
> +
> + port_o: port {
> + pgu_output: endpoint {
> + remote-endpoint = <&hdmi_enc_input>;
> + };
> + };
> +};
> --
> 2.21.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-03-16 14:46 [PATCH 0/2] DRM: ARC: add HDMI 2.0 TX encoder support Eugeniy Paltsev
2020-03-16 14:46 ` [PATCH 1/2] " Eugeniy Paltsev
2020-03-16 14:46 ` [PATCH 2/2] dt-bindings: Document the Synopsys ARC HDMI TX bindings Eugeniy Paltsev
2020-03-16 15:05 ` Sam Ravnborg
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