* [PATCH v4 0/2] Add support for rm69299 Visionox panel driver and add devicetree bindings for visionox panel
@ 2020-03-06 10:36 Harigovindan P
2020-03-06 10:36 ` [PATCH v4 1/2] dt-bindings: display: add visionox rm69299 panel variant Harigovindan P
2020-03-06 10:36 ` [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver Harigovindan P
0 siblings, 2 replies; 6+ messages in thread
From: Harigovindan P @ 2020-03-06 10:36 UTC (permalink / raw)
To: dri-devel, linux-arm-msm, freedreno, devicetree
Cc: Harigovindan P, robdclark, seanpaul, sean
Adding support for visionox rm69299 panel driver and adding bindings for the same panel.
Harigovindan P (2):
dt-bindings: display: add visionox rm69299 panel variant
drm/panel: add support for rm69299 visionox panel driver
.../display/panel/visionox,rm69299.yaml | 85 +++++
drivers/gpu/drm/panel/Kconfig | 8 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-visionox-rm69299.c | 322 ++++++++++++++++++
4 files changed, 416 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
create mode 100644 drivers/gpu/drm/panel/panel-visionox-rm69299.c
--
2.25.1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v4 1/2] dt-bindings: display: add visionox rm69299 panel variant
2020-03-06 10:36 [PATCH v4 0/2] Add support for rm69299 Visionox panel driver and add devicetree bindings for visionox panel Harigovindan P
@ 2020-03-06 10:36 ` Harigovindan P
2020-03-10 17:53 ` Sam Ravnborg
2020-03-06 10:36 ` [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver Harigovindan P
1 sibling, 1 reply; 6+ messages in thread
From: Harigovindan P @ 2020-03-06 10:36 UTC (permalink / raw)
To: dri-devel, linux-arm-msm, freedreno, devicetree
Cc: Harigovindan P, robdclark, seanpaul, sean
Add bindings for visionox rm69299 panel.
Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
---
Changes in v2:
- Removed unwanted properties from description.
- Creating source files without execute permissions(Rob Herring).
Changes in v3:
- Changing txt file into yaml
Changes in v4:
- Updating license identifier.
- Moving yaml file inside panel directory.
- Removing pinctrl entries.
- Adding documentation for reset-gpios.
.../display/panel/visionox,rm69299.yaml | 85 +++++++++++++++++++
1 file changed, 85 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml b/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
new file mode 100644
index 000000000000..93cae431207c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/visionox,rm69299.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Visionox model RM69299 Panels Device Tree Bindings.
+
+maintainers:
+ - Harigovindan P <harigovi@codeaurora.org>
+
+description: |
+ This binding is for display panels using a Visionox RM692999 panel.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+patternProperties:
+ "^(panel|panel-dsi)@[0-9]$":
+ type: object
+ properties:
+ compatible:
+ const: visionox,rm69299-1080p-display
+
+ reg:
+ maxItems: 1
+
+ vdda-supply:
+ description:
+ Phandle of the regulator that provides the vdda supply voltage.
+
+ vdd3p3-supply:
+ description:
+ Phandle of the regulator that provides the vdd3p3 supply voltage.
+
+ ports:
+ type: object
+ description:
+ A node containing DSI input & output port nodes with endpoint
+ definitions as documented in
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+ Documentation/devicetree/bindings/graph.txt
+ properties:
+ port@0:
+ type: object
+ description:
+ DSI input port node.
+
+ reset-gpios:
+ description:
+ a GPIO spec for the reset pin.
+
+required:
+ - compatible
+ - reg
+ - vdda-supply
+ - vdd3p3-supply
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+- |
+ dsi@ae94000 {
+ panel@0 {
+ compatible = "visionox,rm69299-1080p-display";
+
+ vdda-supply = <&src_pp1800_l8c>;
+ vdd3p3-supply = <&src_pp2800_l18a>;
+
+ reset-gpios = <&pm6150l_gpio 3 0>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ panel0_in: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
+ };
+...
+
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver
2020-03-06 10:36 [PATCH v4 0/2] Add support for rm69299 Visionox panel driver and add devicetree bindings for visionox panel Harigovindan P
2020-03-06 10:36 ` [PATCH v4 1/2] dt-bindings: display: add visionox rm69299 panel variant Harigovindan P
@ 2020-03-06 10:36 ` Harigovindan P
2020-03-06 18:23 ` Matthias Kaehlcke
2020-03-10 18:00 ` Sam Ravnborg
1 sibling, 2 replies; 6+ messages in thread
From: Harigovindan P @ 2020-03-06 10:36 UTC (permalink / raw)
To: dri-devel, linux-arm-msm, freedreno, devicetree
Cc: Harigovindan P, robdclark, seanpaul, sean
Add support for Visionox panel driver.
Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
---
Changes in v2:
- Dropping redundant space in Kconfig(Sam Ravnborg).
- Changing structure for include files(Sam Ravnborg).
- Removing backlight related code and functions(Sam Ravnborg).
- Removing repeated printing of error message(Sam Ravnborg).
- Adding drm_connector as an argument for get_modes function.
Changes in v3:
- Adding arguments for drm_panel_init to support against mainline.
Changes in v4:
- Removing error messages from regulator_set_load.
- Removing dev struct entry.
- Removing checks.
- Dropping empty comment lines.
drivers/gpu/drm/panel/Kconfig | 8 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-visionox-rm69299.c | 322 ++++++++++++++++++
3 files changed, 331 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-visionox-rm69299.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index ae44ac2ec106..7b696f304a99 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -389,6 +389,14 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
Video Mode panel
+config DRM_PANEL_VISIONOX_RM69299
+ tristate "Visionox RM69299"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ help
+ Say Y here if you want to enable support for Visionox
+ RM69299 DSI Video Mode panel.
+
config DRM_PANEL_XINPENG_XPP055C272
tristate "Xinpeng XPP055C272 panel driver"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 7c4d3c581fd4..9f11d067a6b2 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -41,4 +41,5 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
+obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o
diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
new file mode 100644
index 000000000000..eb15dca15398
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_print.h>
+
+struct rm69299_config {
+ unsigned long width_mm;
+ unsigned long height_mm;
+ const char *panel_name;
+ u32 num_on_cmds;
+ const struct drm_display_mode *dm;
+};
+
+struct visionox_rm69299 {
+ struct drm_panel panel;
+
+ struct regulator_bulk_data supplies[2];
+
+ struct gpio_desc *reset_gpio;
+
+ struct mipi_dsi_device *dsi;
+ const struct rm69299_config *config;
+ bool prepared;
+ bool enabled;
+};
+
+static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)
+{
+ return container_of(panel, struct visionox_rm69299, panel);
+}
+
+static int visionox_35597_power_on(struct visionox_rm69299 *ctx)
+{
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * Reset sequence of visionox panel requires the panel to be
+ * out of reset for 10ms, followed by being held in reset
+ * for 10ms and then out again
+ */
+ gpiod_set_value(ctx->reset_gpio, 1);
+ usleep_range(10000, 20000);
+ gpiod_set_value(ctx->reset_gpio, 0);
+ usleep_range(10000, 20000);
+ gpiod_set_value(ctx->reset_gpio, 1);
+ usleep_range(10000, 20000);
+
+ return 0;
+}
+
+static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
+{
+ gpiod_set_value(ctx->reset_gpio, 0);
+
+ return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+}
+
+static int visionox_rm69299_unprepare(struct drm_panel *panel)
+{
+ struct visionox_rm69299 *ctx = panel_to_ctx(panel);
+ int ret;
+
+ ctx->dsi->mode_flags = 0;
+
+ ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);
+ if (ret < 0)
+ DRM_DEV_ERROR(ctx->panel.dev, "set_display_off cmd failed ret = %d\n", ret);
+
+ /* 120ms delay required here as per DCS spec */
+ msleep(120);
+
+ ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "enter_sleep cmd failed ret = %d\n", ret);
+ }
+
+ ret = visionox_rm69299_power_off(ctx);
+
+ ctx->prepared = false;
+ return ret;
+}
+
+static int visionox_rm69299_prepare(struct drm_panel *panel)
+{
+ struct visionox_rm69299 *ctx = panel_to_ctx(panel);
+ int ret;
+ const struct rm69299_config *config;
+
+ if (ctx->prepared)
+ return 0;
+
+ ret = visionox_35597_power_on(ctx);
+ if (ret < 0)
+ return ret;
+
+ ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ config = ctx->config;
+
+ ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0xfe, 0x00 }, 2);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "cmd set tx 0 failed, ret = %d\n",
+ ret);
+ goto power_off;
+ }
+
+ ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0xc2, 0x08 }, 2);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "cmd set tx 1 failed, ret = %d\n",
+ ret);
+ goto power_off;
+ }
+
+ ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0x35, 0x00 }, 2);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "cmd set tx 2 failed, ret = %d\n",
+ ret);
+ goto power_off;
+ }
+
+ ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0x51, 0xff }, 2);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "cmd set tx 3 failed, ret = %d\n",
+ ret);
+ goto power_off;
+ }
+
+ ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "exit_sleep_mode cmd failed ret = %d\n",
+ ret);
+ goto power_off;
+ }
+
+ /* Per DSI spec wait 120ms after sending exit sleep DCS command */
+ msleep(120);
+
+ ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);
+ if (ret < 0) {
+ DRM_DEV_ERROR(ctx->panel.dev,
+ "set_display_on cmd failed ret = %d\n", ret);
+ goto power_off;
+ }
+
+ /* Per DSI spec wait 120ms after sending set_display_on DCS command */
+ msleep(120);
+
+ ctx->prepared = true;
+
+ return 0;
+
+power_off:
+ return visionox_rm69299_power_off(ctx);
+}
+
+static int visionox_rm69299_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct visionox_rm69299 *ctx = panel_to_ctx(panel);
+ struct drm_display_mode *mode;
+ const struct rm69299_config *config;
+
+ config = ctx->config;
+ mode = drm_mode_create(connector->dev);
+ if (!mode) {
+ DRM_DEV_ERROR(ctx->dev,
+ "failed to create a new display mode\n");
+ return 0;
+ }
+
+ connector->display_info.width_mm = config->width_mm;
+ connector->display_info.height_mm = config->height_mm;
+ drm_mode_copy(mode, config->dm);
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ drm_mode_probed_add(connector, mode);
+
+ return 1;
+}
+
+static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {
+ .unprepare = visionox_rm69299_unprepare,
+ .prepare = visionox_rm69299_prepare,
+ .get_modes = visionox_rm69299_get_modes,
+};
+
+static const struct drm_display_mode qcom_sc7180_mtp_1080p_mode = {
+ .name = "1080x2248",
+ .clock = 158695,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 26,
+ .hsync_end = 1080 + 26 + 2,
+ .htotal = 1080 + 26 + 2 + 36,
+ .vdisplay = 2248,
+ .vsync_start = 2248 + 56,
+ .vsync_end = 2248 + 56 + 4,
+ .vtotal = 2248 + 56 + 4 + 4,
+ .vrefresh = 60,
+ .flags = 0,
+};
+
+static const struct rm69299_config rm69299_dir = {
+ .width_mm = 74,
+ .height_mm = 131,
+ .panel_name = "qcom_sc7180_mtp_1080p_panel",
+ .dm = &qcom_sc7180_mtp_1080p_mode,
+};
+
+static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct visionox_rm69299 *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+
+ if (!ctx)
+ return -ENOMEM;
+
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ ctx->supplies[0].supply = "vdda";
+ ctx->supplies[1].supply = "vdd3p3";
+
+ ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),
+ ctx->supplies);
+ if (ret < 0)
+ return ret;
+
+ ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->reset_gpio)) {
+ DRM_DEV_ERROR(dev, "cannot get reset gpio %ld\n",
+ PTR_ERR(ctx->reset_gpio));
+ return PTR_ERR(ctx->reset_gpio);
+ }
+
+ drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ ctx->panel.dev = dev;
+ ctx->panel.funcs = &visionox_rm69299_drm_funcs;
+ drm_panel_add(&ctx->panel);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |
+ MIPI_DSI_CLOCK_NON_CONTINUOUS;
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ DRM_DEV_ERROR(dev,
+ "dsi attach failed ret = %d\n", ret);
+ goto err_dsi_attach;
+ }
+
+ ret = regulator_set_load(ctx->supplies[0].consumer, 32000);
+ if (ret)
+ return ret;
+
+ ret = regulator_set_load(ctx->supplies[1].consumer, 13200);
+ if (ret)
+ return ret;
+
+ return 0;
+
+err_dsi_attach:
+ drm_panel_remove(&ctx->panel);
+ return ret;
+}
+
+static int visionox_rm69299_remove(struct mipi_dsi_device *dsi)
+{
+ struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);
+
+ mipi_dsi_detach(ctx->dsi);
+ mipi_dsi_device_unregister(ctx->dsi);
+
+ drm_panel_remove(&ctx->panel);
+ return 0;
+}
+
+static const struct of_device_id visionox_rm69299_of_match[] = {
+ {
+ .compatible = "visionox,rm69299-1080p-display",
+ .data = &rm69299_dir,
+ },
+};
+MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match);
+
+static struct mipi_dsi_driver visionox_rm69299_driver = {
+ .driver = {
+ .name = "panel-visionox-rm69299",
+ .of_match_table = visionox_rm69299_of_match,
+ },
+ .probe = visionox_rm69299_probe,
+ .remove = visionox_rm69299_remove,
+};
+module_mipi_dsi_driver(visionox_rm69299_driver);
+
+MODULE_DESCRIPTION("VISIONOX RM69299 DSI Panel Driver");
+MODULE_LICENSE("GPL v2");
+
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver
2020-03-06 10:36 ` [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver Harigovindan P
@ 2020-03-06 18:23 ` Matthias Kaehlcke
2020-03-10 18:00 ` Sam Ravnborg
1 sibling, 0 replies; 6+ messages in thread
From: Matthias Kaehlcke @ 2020-03-06 18:23 UTC (permalink / raw)
To: Harigovindan P
Cc: dri-devel, linux-arm-msm, freedreno, devicetree, robdclark,
seanpaul, sean
Hi,
On Fri, Mar 06, 2020 at 04:06:28PM +0530, Harigovindan P wrote:
> Add support for Visionox panel driver.
>
> Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
> ---
>
> Changes in v2:
> - Dropping redundant space in Kconfig(Sam Ravnborg).
> - Changing structure for include files(Sam Ravnborg).
> - Removing backlight related code and functions(Sam Ravnborg).
> - Removing repeated printing of error message(Sam Ravnborg).
> - Adding drm_connector as an argument for get_modes function.
> Changes in v3:
> - Adding arguments for drm_panel_init to support against mainline.
> Changes in v4:
> - Removing error messages from regulator_set_load.
> - Removing dev struct entry.
> - Removing checks.
> - Dropping empty comment lines.
>
> drivers/gpu/drm/panel/Kconfig | 8 +
> drivers/gpu/drm/panel/Makefile | 1 +
> .../gpu/drm/panel/panel-visionox-rm69299.c | 322 ++++++++++++++++++
> 3 files changed, 331 insertions(+)
> create mode 100644 drivers/gpu/drm/panel/panel-visionox-rm69299.c
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index ae44ac2ec106..7b696f304a99 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -389,6 +389,14 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
> Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
> Video Mode panel
>
> +config DRM_PANEL_VISIONOX_RM69299
> + tristate "Visionox RM69299"
> + depends on OF
> + depends on DRM_MIPI_DSI
> + help
> + Say Y here if you want to enable support for Visionox
> + RM69299 DSI Video Mode panel.
> +
> config DRM_PANEL_XINPENG_XPP055C272
> tristate "Xinpeng XPP055C272 panel driver"
> depends on OF
> diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> index 7c4d3c581fd4..9f11d067a6b2 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -41,4 +41,5 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
> obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
> obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
> obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
> +obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
> obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o
> diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
> new file mode 100644
> index 000000000000..eb15dca15398
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
> @@ -0,0 +1,322 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2019, The Linux Foundation. All rights reserved.
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/regulator/consumer.h>
> +
> +#include <video/mipi_display.h>
> +
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_modes.h>
> +#include <drm/drm_panel.h>
> +#include <drm/drm_print.h>
> +
> +struct rm69299_config {
> + unsigned long width_mm;
> + unsigned long height_mm;
> + const char *panel_name;
> + u32 num_on_cmds;
not used, remove
> + const struct drm_display_mode *dm;
> +};
> +
> +struct visionox_rm69299 {
> + struct drm_panel panel;
> +
> + struct regulator_bulk_data supplies[2];
> +
> + struct gpio_desc *reset_gpio;
> +
> + struct mipi_dsi_device *dsi;
nit: the use of blank lines in this struct seems a bit arbitrary,
just remove them?
> + const struct rm69299_config *config;
> + bool prepared;
> + bool enabled;
> +};
> +
> +static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel)
> +{
> + return container_of(panel, struct visionox_rm69299, panel);
> +}
> +
> +static int visionox_35597_power_on(struct visionox_rm69299 *ctx)
> +{
> + int ret;
> +
> + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> + if (ret < 0)
> + return ret;
> +
> + /*
> + * Reset sequence of visionox panel requires the panel to be
> + * out of reset for 10ms, followed by being held in reset
> + * for 10ms and then out again
> + */
> + gpiod_set_value(ctx->reset_gpio, 1);
> + usleep_range(10000, 20000);
> + gpiod_set_value(ctx->reset_gpio, 0);
> + usleep_range(10000, 20000);
> + gpiod_set_value(ctx->reset_gpio, 1);
> + usleep_range(10000, 20000);
> +
> + return 0;
> +}
> +
> +static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
> +{
> + gpiod_set_value(ctx->reset_gpio, 0);
> +
> + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
> +}
> +
> +static int visionox_rm69299_unprepare(struct drm_panel *panel)
> +{
> + struct visionox_rm69299 *ctx = panel_to_ctx(panel);
> + int ret;
> +
> + ctx->dsi->mode_flags = 0;
> +
> + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);
> + if (ret < 0)
> + DRM_DEV_ERROR(ctx->panel.dev, "set_display_off cmd failed ret = %d\n", ret);
> +
> + /* 120ms delay required here as per DCS spec */
> + msleep(120);
> +
> + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "enter_sleep cmd failed ret = %d\n", ret);
> + }
> +
> + ret = visionox_rm69299_power_off(ctx);
> +
> + ctx->prepared = false;
> + return ret;
> +}
> +
> +static int visionox_rm69299_prepare(struct drm_panel *panel)
> +{
> + struct visionox_rm69299 *ctx = panel_to_ctx(panel);
> + int ret;
> + const struct rm69299_config *config;
> +
> + if (ctx->prepared)
> + return 0;
> +
> + ret = visionox_35597_power_on(ctx);
> + if (ret < 0)
> + return ret;
> +
> + ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
> +
> + config = ctx->config;
> +
> + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0xfe, 0x00 }, 2);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "cmd set tx 0 failed, ret = %d\n",
> + ret);
The above lines should be indented, e.g. by adding a tab or aligning it
after the parenthesis of DRM_DEV_ERROR(). 'ret' shouldn't be in an
separate line unless the line would exceed 80 characters otherwise.
> + goto power_off;
> + }
> +
> + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0xc2, 0x08 }, 2);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "cmd set tx 1 failed, ret = %d\n",
> + ret);
fix indentation
> + goto power_off;
> + }
> +
> + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0x35, 0x00 }, 2);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "cmd set tx 2 failed, ret = %d\n",
> + ret);
fix indentation
> + goto power_off;
> + }
> +
> + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]){ 0x51, 0xff }, 2);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "cmd set tx 3 failed, ret = %d\n",
> + ret);
fix indentation
> + goto power_off;
> + }
> +
> + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "exit_sleep_mode cmd failed ret = %d\n",
> + ret);
no separate line needed for 'ret'.
> + goto power_off;
> + }
> +
> + /* Per DSI spec wait 120ms after sending exit sleep DCS command */
> + msleep(120);
> +
> + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);
> + if (ret < 0) {
> + DRM_DEV_ERROR(ctx->panel.dev,
> + "set_display_on cmd failed ret = %d\n", ret);
make the others DRM_DEV_ERROR calls look like this :)
> + goto power_off;
> + }
> +
> + /* Per DSI spec wait 120ms after sending set_display_on DCS command */
> + msleep(120);
> +
> + ctx->prepared = true;
> +
> + return 0;
> +
> +power_off:
> + return visionox_rm69299_power_off(ctx);
I think you want to return 'ret' here, otherwise _prepare() appears to be
successful, unless _power_off() fails.
> +}
> +
> +static int visionox_rm69299_get_modes(struct drm_panel *panel,
> + struct drm_connector *connector)
> +{
> + struct visionox_rm69299 *ctx = panel_to_ctx(panel);
> + struct drm_display_mode *mode;
> + const struct rm69299_config *config;
> +
> + config = ctx->config;
nit: could be done in the declaration.
> + mode = drm_mode_create(connector->dev);
> + if (!mode) {
> + DRM_DEV_ERROR(ctx->dev,
> + "failed to create a new display mode\n");
> + return 0;
> + }
> +
> + connector->display_info.width_mm = config->width_mm;
> + connector->display_info.height_mm = config->height_mm;
> + drm_mode_copy(mode, config->dm);
> + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
> + drm_mode_probed_add(connector, mode);
> +
> + return 1;
> +}
> +
> +static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {
> + .unprepare = visionox_rm69299_unprepare,
> + .prepare = visionox_rm69299_prepare,
> + .get_modes = visionox_rm69299_get_modes,
> +};
> +
> +static const struct drm_display_mode qcom_sc7180_mtp_1080p_mode = {
The QCOM SC7180 MTP is a board that uses this panel in a certain mode
(though in theory it could support multiple modes I guess). I don't
thihks the board should be references here. Instead the name could be
something like visionox_rm69299_1080x2248_60hz.
> + .name = "1080x2248",
> + .clock = 158695,
> + .hdisplay = 1080,
> + .hsync_start = 1080 + 26,
> + .hsync_end = 1080 + 26 + 2,
> + .htotal = 1080 + 26 + 2 + 36,
> + .vdisplay = 2248,
> + .vsync_start = 2248 + 56,
> + .vsync_end = 2248 + 56 + 4,
> + .vtotal = 2248 + 56 + 4 + 4,
> + .vrefresh = 60,
> + .flags = 0,
> +};
> +
> +static const struct rm69299_config rm69299_dir = {
> + .width_mm = 74,
> + .height_mm = 131,
> + .panel_name = "qcom_sc7180_mtp_1080p_panel",
ditto, the fact that the MTP board uses this panel is irrelevant in this
driver. Actually 'panel_name' isn't used besides this assignment, just
remove it from the struct.
> + .dm = &qcom_sc7180_mtp_1080p_mode,
> +};
> +
> +static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
> +{
> + struct device *dev = &dsi->dev;
> + struct visionox_rm69299 *ctx;
> + int ret;
> +
> + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
> +
nit: remove empty line between allocation and check?
> + if (!ctx)
> + return -ENOMEM;
> +
> + mipi_dsi_set_drvdata(dsi, ctx);
> +
> + ctx->supplies[0].supply = "vdda";
> + ctx->supplies[1].supply = "vdd3p3";
> +
> + ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),
> + ctx->supplies);
> + if (ret < 0)
> + return ret;
> +
> + ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev, "reset", GPIOD_OUT_LOW);
> + if (IS_ERR(ctx->reset_gpio)) {
> + DRM_DEV_ERROR(dev, "cannot get reset gpio %ld\n",
> + PTR_ERR(ctx->reset_gpio));
The indentation looks a bit funny. Either use a tab wrt DRM_DEV_ERROR() or
align with 'dev'.
> + return PTR_ERR(ctx->reset_gpio);
> + }
> +
> + drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,
> + DRM_MODE_CONNECTOR_DSI);
> + ctx->panel.dev = dev;
> + ctx->panel.funcs = &visionox_rm69299_drm_funcs;
> + drm_panel_add(&ctx->panel);
> +
> + dsi->lanes = 4;
> + dsi->format = MIPI_DSI_FMT_RGB888;
> + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM |
> + MIPI_DSI_CLOCK_NON_CONTINUOUS;
> + ret = mipi_dsi_attach(dsi);
> + if (ret < 0) {
> + DRM_DEV_ERROR(dev,
> + "dsi attach failed ret = %d\n", ret);
> + goto err_dsi_attach;
> + }
> +
> + ret = regulator_set_load(ctx->supplies[0].consumer, 32000);
> + if (ret)
> + return ret;
need to call mipi_dsi_detach() and drm_panel_remove(), add label below.
> +
> + ret = regulator_set_load(ctx->supplies[1].consumer, 13200);
> + if (ret)
> + return ret;
ditto
> +
> + return 0;
> +
> +err_dsi_attach:
> + drm_panel_remove(&ctx->panel);
> + return ret;
> +}
> +
> +static int visionox_rm69299_remove(struct mipi_dsi_device *dsi)
> +{
> + struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi);
> +
> + mipi_dsi_detach(ctx->dsi);
> + mipi_dsi_device_unregister(ctx->dsi);
> +
> + drm_panel_remove(&ctx->panel);
> + return 0;
> +}
> +
> +static const struct of_device_id visionox_rm69299_of_match[] = {
> + {
> + .compatible = "visionox,rm69299-1080p-display",
> + .data = &rm69299_dir,
> + },
> +};
> +MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match);
> +
> +static struct mipi_dsi_driver visionox_rm69299_driver = {
> + .driver = {
> + .name = "panel-visionox-rm69299",
> + .of_match_table = visionox_rm69299_of_match,
> + },
> + .probe = visionox_rm69299_probe,
> + .remove = visionox_rm69299_remove,
> +};
> +module_mipi_dsi_driver(visionox_rm69299_driver);
> +
> +MODULE_DESCRIPTION("VISIONOX RM69299 DSI Panel Driver");
nit: Visionox
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v4 1/2] dt-bindings: display: add visionox rm69299 panel variant
2020-03-06 10:36 ` [PATCH v4 1/2] dt-bindings: display: add visionox rm69299 panel variant Harigovindan P
@ 2020-03-10 17:53 ` Sam Ravnborg
0 siblings, 0 replies; 6+ messages in thread
From: Sam Ravnborg @ 2020-03-10 17:53 UTC (permalink / raw)
To: Harigovindan P
Cc: dri-devel, linux-arm-msm, freedreno, devicetree, sean, seanpaul
Hi Harigovindan
Thanks for the follow-up. There are still a few things to improve.
See below.
Sam
On Fri, Mar 06, 2020 at 04:06:27PM +0530, Harigovindan P wrote:
> Add bindings for visionox rm69299 panel.
>
> Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
> ---
>
> Changes in v2:
> - Removed unwanted properties from description.
> - Creating source files without execute permissions(Rob Herring).
> Changes in v3:
> - Changing txt file into yaml
> Changes in v4:
> - Updating license identifier.
> - Moving yaml file inside panel directory.
> - Removing pinctrl entries.
> - Adding documentation for reset-gpios.
>
> .../display/panel/visionox,rm69299.yaml | 85 +++++++++++++++++++
> 1 file changed, 85 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml b/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
> new file mode 100644
> index 000000000000..93cae431207c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml
> @@ -0,0 +1,85 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/visionox,rm69299.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Visionox model RM69299 Panels Device Tree Bindings.
> +
> +maintainers:
> + - Harigovindan P <harigovi@codeaurora.org>
> +
> +description: |
> + This binding is for display panels using a Visionox RM692999 panel.
> +
> +allOf:
> + - $ref: panel-common.yaml#
> +
> +patternProperties:
> + "^(panel|panel-dsi)@[0-9]$":
> + type: object
This looks wrong. None of the other panels needs to specify
a patternProperties, and neither do we need to do so for this panel.
> + properties:
> + compatible:
> + const: visionox,rm69299-1080p-display
The compatible is what we use to match this binding.
> +
> + reg:
> + maxItems: 1
> +
> + vdda-supply:
> + description:
> + Phandle of the regulator that provides the vdda supply voltage.
> +
> + vdd3p3-supply:
> + description:
> + Phandle of the regulator that provides the vdd3p3 supply voltage.
> +
> + ports:
> + type: object
> + description:
> + A node containing DSI input & output port nodes with endpoint
> + definitions as documented in
> + Documentation/devicetree/bindings/media/video-interfaces.txt
> + Documentation/devicetree/bindings/graph.txt
I think you miss as " |" after "description:"
Again, see other panel bindings.
> + properties:
> + port@0:
Please just use
port: true
port is already documented in panel-common.yaml.
> + type: object
> + description:
> + DSI input port node.
> +
> + reset-gpios:
reset-gpios is part of panel-common.
So specify only:
reset-gpios: true
No description, as it is in panel-common.
> + description:
> + a GPIO spec for the reset pin.
> +
> +required:
> + - compatible
> + - reg
> + - vdda-supply
> + - vdd3p3-supply
> + - reset-gpios
> +
> +additionalProperties: false
> +
> +examples:
> +- |
> + dsi@ae94000 {
No @ae94000 - this will warn with upcoming dt_binding_check
improvements.
> + panel@0 {
> + compatible = "visionox,rm69299-1080p-display";
> +
> + vdda-supply = <&src_pp1800_l8c>;
> + vdd3p3-supply = <&src_pp2800_l18a>;
> +
> + reset-gpios = <&pm6150l_gpio 3 0>;
reg property is required, but missing in the example.
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + port@0 {
> + reg = <0>;
> + panel0_in: endpoint {
> + remote-endpoint = <&dsi0_out>;
> + };
> + };
> + };
> + };
> + };
> +...
> +
> --
> 2.25.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver
2020-03-06 10:36 ` [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver Harigovindan P
2020-03-06 18:23 ` Matthias Kaehlcke
@ 2020-03-10 18:00 ` Sam Ravnborg
1 sibling, 0 replies; 6+ messages in thread
From: Sam Ravnborg @ 2020-03-10 18:00 UTC (permalink / raw)
To: Harigovindan P
Cc: dri-devel, linux-arm-msm, freedreno, devicetree, sean, seanpaul
Hi Harigovindan
Thanks for the v4. nice work!
There is one tiny detail to fix.
With this fixed:
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Sam
On Fri, Mar 06, 2020 at 04:06:28PM +0530, Harigovindan P wrote:
> Add support for Visionox panel driver.
>
> Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
> ---
>
> Changes in v2:
> - Dropping redundant space in Kconfig(Sam Ravnborg).
> - Changing structure for include files(Sam Ravnborg).
> - Removing backlight related code and functions(Sam Ravnborg).
> - Removing repeated printing of error message(Sam Ravnborg).
> - Adding drm_connector as an argument for get_modes function.
> Changes in v3:
> - Adding arguments for drm_panel_init to support against mainline.
> Changes in v4:
> - Removing error messages from regulator_set_load.
> - Removing dev struct entry.
> - Removing checks.
> - Dropping empty comment lines.
>
> drivers/gpu/drm/panel/Kconfig | 8 +
> drivers/gpu/drm/panel/Makefile | 1 +
> .../gpu/drm/panel/panel-visionox-rm69299.c | 322 ++++++++++++++++++
> 3 files changed, 331 insertions(+)
> create mode 100644 drivers/gpu/drm/panel/panel-visionox-rm69299.c
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index ae44ac2ec106..7b696f304a99 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -389,6 +389,14 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
> Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
> Video Mode panel
>
> +config DRM_PANEL_VISIONOX_RM69299
> + tristate "Visionox RM69299"
> + depends on OF
> + depends on DRM_MIPI_DSI
> + help
> + Say Y here if you want to enable support for Visionox
> + RM69299 DSI Video Mode panel.
> +
> config DRM_PANEL_XINPENG_XPP055C272
> tristate "Xinpeng XPP055C272 panel driver"
> depends on OF
> diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> index 7c4d3c581fd4..9f11d067a6b2 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -41,4 +41,5 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
> obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
> obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
> obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
> +obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
> obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o
> diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
> new file mode 100644
> index 000000000000..eb15dca15398
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
> @@ -0,0 +1,322 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2019, The Linux Foundation. All rights reserved.
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/regulator/consumer.h>
Sort alphabetically. Ignore length of line.
> +
> +#include <video/mipi_display.h>
> +
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_modes.h>
> +#include <drm/drm_panel.h>
> +#include <drm/drm_print.h>
> +
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-03-10 18:00 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-06 10:36 [PATCH v4 0/2] Add support for rm69299 Visionox panel driver and add devicetree bindings for visionox panel Harigovindan P
2020-03-06 10:36 ` [PATCH v4 1/2] dt-bindings: display: add visionox rm69299 panel variant Harigovindan P
2020-03-10 17:53 ` Sam Ravnborg
2020-03-06 10:36 ` [PATCH v4 2/2] drm/panel: add support for rm69299 visionox panel driver Harigovindan P
2020-03-06 18:23 ` Matthias Kaehlcke
2020-03-10 18:00 ` Sam Ravnborg
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