While adding SiI9022A support to the iwg23s board, it came
up that when the HDMI transmitter is in pass through mode the
device is not compliant with the I2C specification anymore,
as it requires a far bigger tbuf, due to a delay the HDMI
transmitter is adding when relaying the STOP condition on the
monitor i2c side of things.
When not providing an appropriate delay after the STOP condition
the i2c bus would get stuck. Also, any other traffic on the bus
while talking to the monitor may cause the transaction to fail
or even cause issues with the i2c bus as well.
I2c-gates seemed to reach consent as a possible way to address
these issues, and as such this patch is implementing a solution
based on that. Since others are clearly relying on the current
implementation of the driver, this patch won't require any DT
changes.
Since we don't want any interference during the DDC Bus
Request/Grant procedure and while talking to the monitor, we
have to use the adapter locking primitives rather than the
i2c-mux locking primitives.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Yannick Fertré <yannick.fertre@st.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1541505156-8097-1-git-send-email-fabrizio.castro@bp.renesas.com
(cherry picked from commit 21d808405f)
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: Idb1a4b5d3c12b47d89693790fb03486ba0021ab5
This reverts commit 60005ae6b0.
Which make cpu unstable now.
Change-Id: Ib22d3ca75709f810a22d8754aac40cfab120022b
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
make ARCH=arm rv1126_defconfig rv1126-uvc-spi-nand.config
Signed-off-by: Mark Huang <huangjc@rock-chips.com>
Change-Id: I0ff024ad52b1a94e44cdccb3716f44a91f01e4ef
Before vop 2.0, the display sub system only
support one RGB/LVDS/eDP/HDMI/MIPI connector
for one vop, so we can find which output interface
should be enabled by output_type(DPI/LVDS/HDMI).
But for the VOP 2.0 display subsystem, we may
have two connector (LVDS/eDP/HDMI/MIPI) of the
same output_type(HDMI0,HDMI1) enabled at same time,
so the output_type is not enough to give the interface
information, we need to know HDMI0 or HDMI1, eDP0 or eDP1
should be enabled.
So we add output interface id here, every connector
driver should set it correctlly to tell vop driver
to enable the corresponding output interface.
Change-Id: Ic22863f0f18f160b0df7d8f4c3b71b17ef987ea9
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
drivers/net/wireless/rockchip_wlan/*/core/rtw_debug.c:45:44:
error: expansion of date or time macro is not reproducible [-Werror,-Wdate-time]
RTW_PRINT_SEL(sel, "build time: %s %s\n", __DATE__, __TIME__);
Signed-off-by: Wu Liangqing <wlq@rock-chips.com>
Change-Id: I506498ea3013ee3458dc1f8d2a88d9aac76c149e
Fixes: 69f3c341d9 ("drivers: rkflash: Support spinand non aligned read")
Change-Id: I3146cd574ac77c2d1a0b5b6563440d86766a0a9a
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
if device in session has initialized, return hw_id directly.
otherwise, return hw_id via client_type which user set.
cat /proc/mpp_service/supports-device will show the hw_id.
Change-Id: Ie5e7c0227774ff5cacc8654f048c1447857e9e9d
Signed-off-by: Ding Wei <leo.ding@rock-chips.com>
using "-" instead of "_", which means the node is read only.
Change-Id: If66764daca51f96bdccd5324e251fc9bd956691d
Signed-off-by: Ding Wei <leo.ding@rock-chips.com>
Fix "No oob scheme defined for oobsize" issue for Some
NAND devices.
Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>
Change-Id: I76eb57becd6d01060d770e7f969bc693bf694bc0
method: When iommu read/write pagefault is caused by insufficient buffer,
map a 4K buffer to keep the hardware running normally, so as to avoid
hardware timeout.
Change-Id: Ib55f92e5e63224f789c2e9dbeba51d413a600d3c
Signed-off-by: Ding Wei <leo.ding@rock-chips.com>
make error info: "error: passing argument 1 of 'nand_scan' from
incompatible pointer type [-Werror=incompatible-pointer-types]".
Fixes: 4c9539a319 ("mtd: rawnand: Pass a nand_chip object to nand_scan()")
Change-Id: Ifb513a4f4466d64bfb88a220ba584220abedde8c
Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>
RK3568 has two USB 2.0 PHYs, and each PHY has two ports, the
OTG port of PHY0 support OTG mode with charging detection
function, they are similar to previous Rockchip SoCs.
However, there are three different designs for RK3568 USB 2.0 PHY.
1. RK3568 uses independent USB GRF module for each USB 2.0 PHY.
2. RK3568 accesses the registers of USB 2.0 PHY IP directly by APB.
3. The two ports of USB 2.0 PHY share one interrupt.
Signed-off-by: William Wu <william.wu@rock-chips.com>
Change-Id: Id05718e25a20abdf9a4cb353b0fb94f0cb8b2d75
HW registers were reset to default values during power on reset.
Change-Id: I1c78d5f9eb78c80a9a9cfe8c8d106c125fa0cba0
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
disable sharp dma to ddr, sharp will goto idle early,
and sharp may be abnormal, output image error. Enable
default to fix this bug.
Change-Id: I2882394e461b257a1734342cf08a8a3ddc465360
Signed-off-by: Cai YiWei <cyw@rock-chips.com>
panic when frm1/frm0 end triggered simultaneously and only one buf in queue
Signed-off-by: Allon Huang <allon.huang@rock-chips.com>
Change-Id: I4fb43e3ed0ed728db21d2b7b7fc92c5d8aa04aaa
Allow a user to write pwm oneshot_count value. If oneshot_count == 0,
the pwm works in continuous mode. If 0 < oneshot_count < 256, the
pwm works in oneshot mode.
Signed-off-by: Steven Liu <steven.liu@rock-chips.com>
Change-Id: Icbcea85dc1d625a4ac24fee4ab07f1e2421bde77
