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path: root/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
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2022-01-27phy: mediatek: Fix missing check in mtk_mipi_tx_probeMiaoqian Lin1-0/+2
[ Upstream commit 399c91c3f30531593e5ff6ca7b53f47092128669 ] The of_device_get_match_data() function may return NULL. Add check to prevent potential null dereference. Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20211224082103.7658-1-linmq006@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-22drm/mediatek: config mipitx impedance with calibration dataJitao Shi1-0/+40
Read calibration data from nvmem, and config mipitx impedance with calibration data to make sure their impedance are 100ohm. Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-04-22drm/mediatek: add the mipitx driving controlJitao Shi1-0/+14
Add a property in device tree to control the driving by different board. Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2019-10-07drm/mediatek: add mipi_tx driver for mt8183Jitao Shi1-0/+2
This patch add mt8183 mipi_tx driver. And also support other chips that use the same binding and driver. Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2019-10-07drm/mediatek: separate mipi_tx to different fileJitao Shi1-315/+21
Different IC has different mipi_tx setting of dsi. This patch separates the mipi_tx hardware relate part for mt8173. Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-07drm/mediatek: add support for Mediatek SoC MT2701yt.shen@mediatek.com1-0/+6
This patch add support for the Mediatek MT2701 DISP subsystem. There is only one OVL engine in MT2701. Signed-off-by: YT Shen <yt.shen@mediatek.com> Acked-by: CK Hu <ck.hu@mediatek.com>
2017-04-07drm/mediatek: cleaning up and refineyt.shen@mediatek.com1-4/+4
cleaning up unused define and refine function name and variable Signed-off-by: shaoming chen <shaoming.chen@mediatek.com> Signed-off-by: YT Shen <yt.shen@mediatek.com> Acked-by: CK Hu <ck.hu@mediatek.com>
2017-04-07drm/mediatek: add *driver_data for different hardware settingsyt.shen@mediatek.com1-1/+23
There are some hardware settings changed, between MT8173 & MT2701: DISP_OVL address offset changed, color format definition changed. DISP_RDMA fifo size changed. DISP_COLOR offset changed. MIPI_TX pll setting changed. And add prefix for mtk_ddp_main & mtk_ddp_ext & mutex_mod. Signed-off-by: YT Shen <yt.shen@mediatek.com> Acked-by: CK Hu <ck.hu@mediatek.com>
2016-07-12drm/mediatek/mtk_mipi_tx: checking the wrong variableDan Carpenter1-1/+1
We should be checking "phy_provider" here not "phy". Fixes: 2e54c14e310f ('drm/mediatek: Add DSI sub driver') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160701135934.GA15723@mwanda
2016-05-06drm/mediatek: Add DSI sub driverCK Hu1-0/+463
This patch add a drm encoder/connector driver for the MIPI DSI function block of the Mediatek display subsystem and a phy driver for the MIPI TX D-PHY control module. Signed-off-by: Jitao Shi <jitao.shi@mediatek.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>