JH7110 USB 2.0 host fails to detect USB 2.0 devices occasionally. With a
long time of debugging and testing, we found that setting Rx clock gating
control signal to normal power consumption mode can solve this problem.
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20250422101244.51686-1-hal.feng@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
In order to connect the USB 2.0 PHY to its controller, we also need to
set "u0_pdrstn_split_sw_usbpipe_plugen" [1]. Some downstream U-Boot
versions did that, but upstream firmware does not, and the kernel must
not rely on such behavior anyway. Failing to set this left the USB
gadget port invisible to connected hosts behind.
Link: https://doc-en.rvspace.org/JH7110/TRM/JH7110_TRM/sys_syscon.html#sys_syscon__section_b3l_fqs_wsb [1]
Fixes: 16d3a71c20 ("phy: starfive: Add JH7110 USB 2.0 PHY driver")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20241015070444.20972-2-minda.chen@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
We actually want to calculate the alignment values first, then
use the alignment value to look up the data from reg_configs[].
Fixes: d3ab795533 ("phy: starfive: Add mipi dphy tx support")
Reviewed-by: Shengyang Chen <shengyang.chen@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://lore.kernel.org/r/20240627020059.163535-1-changhuang.liang@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Add mipi dphy tx support for the StarFive JH7110 SoC.
It is a module which is used to receive data from DSI
driver and transfer data to DSI interface like mipi screen.
Signed-off-by: Shengyang Chen <shengyang.chen@starfivetech.com>
Reviewed-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://lore.kernel.org/r/20240418035020.47876-3-shengyang.chen@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
'regval' is unused since the original
commit f8aa660841 ("phy: starfive: Add mipi dphy rx support").
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://lore.kernel.org/r/20240527205937.165325-1-linux@treblig.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The various StarFive PHYs are only present on StarFive SoCs. Hence add
a dependency on ARCH_STARFIVE, to prevent asking the user about these
drivers when configuring a kernel without StarFive SoC support.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://lore.kernel.org/r/12097f6107a18e2f7cfb80f47ac7b27808e062c4.1690300076.git.geert+renesas@glider.be
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Add mipi dphy rx support for the StarFive JH7110 SoC. It is used to
transfer CSI camera data.
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Reviewed-by: Minda Chen <minda.chen@starfivetech.com>
Link: https://lore.kernel.org/r/20230718070803.16660-3-changhuang.liang@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
