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[92.34.201.90]) by smtp.gmail.com with ESMTPSA id y11sm2928068lfc.27.2020.01.08.23.30.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jan 2020 23:30:18 -0800 (PST) From: Linus Walleij To: Thierry Reding , Sam Ravnborg , dri-devel@lists.freedesktop.org, Rob Herring Subject: [PATCH v8] drm/panel: Add driver for Sony ACX424AKP panel Date: Thu, 9 Jan 2020 08:28:15 +0100 Message-Id: <20200109072815.334867-1-linus.walleij@linaro.org> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stephan Gerhold Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The Sony ACX424AKP is a command/videomode DSI panel for mobile devices. It is used on the ST-Ericsson HREF520 reference design. We support video mode by default, but it is possible to switch the panel into command mode by using the bool property "dsi-command-mode". Cc: Stephan Gerhold Signed-off-by: Linus Walleij --- ChangeLog v7->v8: - Fix some compilation problems due to the connector refactoring that went in recently so all builds fine now. - Add a MAINTAINERS entry for the driver. - Convert some msleep() to usleep_range(): it's fine to sleep some more so make this explicit. ChangeLog v6->v7: - Add some Kconfig help text. - Sort includes alphabetically. - Move the struct drm_panel first in the state container struct since we are subclassing the panel class. - Put an explicit /* sentinel */ text in the NULL entry for compatible. - Move MTP ID readout to the .prepare() callback. - Add a verbose comment about the MDDI setting so others understand what may be going on. - Explain why the backlight follows the display and cannot be turned on/off ChangeLog v5->v6: - Move the "set MDDI" command back to this file. It is a local pecularity, we suspect there is a Novatek controller inside this display. ChangeLog v4->v5: - Bindings were iterated separately so a jump in versioning. - Add Stephan as reviewer. ChangeLog v3->v4: - No changes just resending with the new binding updates. ChangeLog v2->v3: - No changes just resending with the new binding updates. ChangeLog v1->v2: - Fix up the ID read function to split into reading header, version and ID, store the version in the struct. - Get rid of a surplus semicolon found by the build robot while rewriting the above code. - Use unsigned int in probe() loop. - Set vrefresh to 60Hz, as good as any, the measured vrefresh in continous command mode is ~117 Hz. - Use a different for() idiom while retrying to read ID 5 times. - Drop the sync pulse setting, we are not using this, this panel uses an event. - Use the generic "enforce-video-mode" for video mode enforcement. --- MAINTAINERS | 6 + drivers/gpu/drm/panel/Kconfig | 11 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-sony-acx424akp.c | 550 +++++++++++++++++++ 4 files changed, 568 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-sony-acx424akp.c diff --git a/MAINTAINERS b/MAINTAINERS index 4118dfe61867..3d5cbbaee117 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5368,6 +5368,12 @@ S: Maintained F: drivers/gpu/drm/tiny/st7735r.c F: Documentation/devicetree/bindings/display/sitronix,st7735r.txt +DRM DRIVER FOR SONY ACX424AKP PANELS +M: Linus Walleij +T: git git://anongit.freedesktop.org/drm/drm-misc +S: Maintained +F: drivers/gpu/drm/panel/panel-sony-acx424akp.c + DRM DRIVER FOR ST-ERICSSON MCDE M: Linus Walleij T: git git://anongit.freedesktop.org/drm/drm-misc diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 41f796b28dd5..ae44ac2ec106 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -338,6 +338,17 @@ config DRM_PANEL_SITRONIX_ST7789V Say Y here if you want to enable support for the Sitronix ST7789V controller for 240x320 LCD panels +config DRM_PANEL_SONY_ACX424AKP + tristate "Sony ACX424AKP DSI command mode panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select VIDEOMODE_HELPERS + help + Say Y here if you want to enable the Sony ACX424 display + panel. This panel supports DSI in both command and video + mode. + config DRM_PANEL_SONY_ACX565AKM tristate "Sony ACX565AKM panel" depends on GPIOLIB && OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 4dc7acff21b9..7c4d3c581fd4 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o +obj-$(CONFIG_DRM_PANEL_SONY_ACX424AKP) += panel-sony-acx424akp.o obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o diff --git a/drivers/gpu/drm/panel/panel-sony-acx424akp.c b/drivers/gpu/drm/panel/panel-sony-acx424akp.c new file mode 100644 index 000000000000..de0abf76ae6f --- /dev/null +++ b/drivers/gpu/drm/panel/panel-sony-acx424akp.c @@ -0,0 +1,550 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * MIPI-DSI Sony ACX424AKP panel driver. This is a 480x864 + * AMOLED panel with a command-only DSI interface. + * + * Copyright (C) Linaro Ltd. 2019 + * Author: Linus Walleij + * Based on code and know-how from Marcus Lorentzon + * Copyright (C) ST-Ericsson SA 2010 + */ +#include +#include +#include +#include +#include +#include + +#include