kernel/linux.git/drivers/phy/allwinner, branch v6.6.132

phy: Explicitly include correct DT includes

2023-07-17T06:22:56+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Acked-by: Marc Kleine-Budde # for drivers/phy/phy-can-transceiver.c Acked-by: Heiko Stuebner Acked-by: Sergio Paracuellos Link: https://lore.kernel.org/r/20230714174841.4061919-1-robh@kernel.org Signed-off-by: Vinod Koul

phy: Use of_property_present() for testing DT property presence

2023-03-20T12:44:58+00:00

It is preferred to use typed property access functions (i.e. of_property_read_ functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring Reviewed-by: Jernej Skrabec Link: https://lore.kernel.org/r/20230310144720.1544600-1-robh@kernel.org Signed-off-by: Vinod Koul

phy: allwinner: phy-sun4i-usb: Convert to platform remove callback returning void

2023-03-20T12:44:55+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Jernej Skrabec Link: https://lore.kernel.org/r/20230307115900.2293120-2-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul

phy: sun4i-usb: Replace types with explicit quirk flags

2023-01-12T17:38:57+00:00

So far we were assigning some crude "type" (SoC name, really) to each Allwinner USB PHY model, then guarding certain quirks based on this. This does not only look weird, but gets more or more cumbersome to maintain. Remove the bogus type names altogether, instead introduce flags for each quirk, and explicitly check for them. This improves readability, and simplifies future extensions. Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec Link: https://lore.kernel.org/r/20230109012223.4079299-4-andre.przywara@arm.com Signed-off-by: Vinod Koul

phy: sun4i-usb: add support for the USB PHY on F1C100s SoC

2023-01-12T17:38:57+00:00

The F1C100s SoC has one USB OTG port connected to a MUSB controller. Add support for its USB PHY. Signed-off-by: Icenowy Zheng Acked-by: Jernej Skrabec Signed-off-by: Andre Przywara Link: https://lore.kernel.org/r/20230109012223.4079299-3-andre.przywara@arm.com Signed-off-by: Vinod Koul

phy: allwinner: phy-sun6i-mipi-dphy: Add the A100 DPHY variant

2022-11-24T17:34:24+00:00

A100 features an updated DPHY, which moves PLL control inside the DPHY register space (previously the PLL was controlled from the CCU). It also requires a modified analog power-on sequence. This "combo PHY" can also be used as an LVDS PHY, but that is not yet supported by the driver. Signed-off-by: Samuel Holland Link: https://lore.kernel.org/r/20221114022113.31694-9-samuel@sholland.org Signed-off-by: Vinod Koul

phy: allwinner: phy-sun6i-mipi-dphy: Add a variant power-on hook

2022-11-24T17:34:24+00:00

The A100 variant uses the same values for the timing registers, and it uses the same final power-on sequence, but it needs a different analog register configuration in the middle. Support this by moving the variant-specific parts to a hook provided by the variant. Signed-off-by: Samuel Holland Link: https://lore.kernel.org/r/20221114022113.31694-8-samuel@sholland.org Signed-off-by: Vinod Koul

phy: allwinner: phy-sun6i-mipi-dphy: Set the enable bit last

2022-11-24T17:34:23+00:00

The A100 variant of the DPHY requires configuring the analog registers before setting the global enable bit. Since this order also works on the other variants, always use it, to minimize the differences between them. Reviewed-by: Paul Kocialkowski Signed-off-by: Samuel Holland Link: https://lore.kernel.org/r/20221114022113.31694-7-samuel@sholland.org Signed-off-by: Vinod Koul

phy: allwinner: phy-sun6i-mipi-dphy: Make RX support optional

2022-11-24T17:34:23+00:00

While all variants of the DPHY likely support RX mode, the new variant in the A100 is not used in this direction by the BSP, and it has some analog register changes, so its RX power-on sequence is unknown. To be safe, limit RX support to variants where the power-on sequence is known. Signed-off-by: Samuel Holland Link: https://lore.kernel.org/r/20221114022113.31694-6-samuel@sholland.org Signed-off-by: Vinod Koul

phy: sun4i-usb: Add support for the H616 USB PHY

2022-11-07T04:50:25+00:00

The USB PHY used in the Allwinner H616 SoC inherits some traits from its various predecessors: it has four full PHYs like the H3, needs some extra bits to be set like the H6, and puts SIDDQ on a different bit like the A100. Plus it needs this weird PHY2 quirk. Name all those properties in a new config struct and assign a new compatible name to it. Signed-off-by: Andre Przywara Reviewed-by: Samuel Holland Link: https://lore.kernel.org/r/20221031111358.3387297-5-andre.przywara@arm.com Signed-off-by: Vinod Koul