Searched hist:"56 ba355d" (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/drivers/gpu/drm/mediatek/ |
H A D | mtk_hdmi_regs.h | 56ba355d Mon Jan 04 11:36:39 CST 2016 Jie Qiu <jie.qiu@mediatek.com> drm/mediatek: enable hdmi output control bit
MT8173 HDMI hardware has a output control bit to enable/disable HDMI output. Because of security reason, so this bit can ONLY be controlled in ARM supervisor mode. Now the only way to enter ARM supervisor is the ARM trusted firmware. So atf provides a API for HDMI driver to call to setup this HDMI control bit to enable HDMI output in supervisor mode.
Signed-off-by: Jie Qiu <jie.qiu@mediatek.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> 56ba355d Mon Jan 04 11:36:39 CST 2016 Jie Qiu <jie.qiu@mediatek.com> drm/mediatek: enable hdmi output control bit MT8173 HDMI hardware has a output control bit to enable/disable HDMI output. Because of security reason, so this bit can ONLY be controlled in ARM supervisor mode. Now the only way to enter ARM supervisor is the ARM trusted firmware. So atf provides a API for HDMI driver to call to setup this HDMI control bit to enable HDMI output in supervisor mode. Signed-off-by: Jie Qiu <jie.qiu@mediatek.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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H A D | mtk_hdmi.c | 56ba355d Mon Jan 04 11:36:39 CST 2016 Jie Qiu <jie.qiu@mediatek.com> drm/mediatek: enable hdmi output control bit
MT8173 HDMI hardware has a output control bit to enable/disable HDMI output. Because of security reason, so this bit can ONLY be controlled in ARM supervisor mode. Now the only way to enter ARM supervisor is the ARM trusted firmware. So atf provides a API for HDMI driver to call to setup this HDMI control bit to enable HDMI output in supervisor mode.
Signed-off-by: Jie Qiu <jie.qiu@mediatek.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> 56ba355d Mon Jan 04 11:36:39 CST 2016 Jie Qiu <jie.qiu@mediatek.com> drm/mediatek: enable hdmi output control bit MT8173 HDMI hardware has a output control bit to enable/disable HDMI output. Because of security reason, so this bit can ONLY be controlled in ARM supervisor mode. Now the only way to enter ARM supervisor is the ARM trusted firmware. So atf provides a API for HDMI driver to call to setup this HDMI control bit to enable HDMI output in supervisor mode. Signed-off-by: Jie Qiu <jie.qiu@mediatek.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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