kernel/drivers/phy/rockchip/phy-rockchip-emmc.c, branch linux-6.9.y

phy: rockchip: emmc, add vendor prefix to dts properties

2021-01-13T11:58:24Z

Update the implementation add "rockchip," vendor prefix for the optional dts properties. Prefix referred from vendor-prefixes.yaml. Follow up with commit 8b5c2b45b8f0a ("phy: rockchip: set pulldown for strobe line in dts") commit a8cef928276bb ("phy: rockchip-emmc: output tap delay dt property") Signed-off-by: Chris Ruehl Link: https://lore.kernel.org/r/20201215014409.905-3-chris.ruehl@gtsys.com.hk Signed-off-by: Vinod Koul

phy: rockchip-emmc: emmc_phy_init() always return 0

2021-01-13T11:58:24Z

rockchip_emmc_phy_init() return variable is not set with the error value if clk_get() failed. 'emmcclk' is optional, thus use clk_get_optional() and if the return value != NULL make error processing and set the return code accordingly. Fixes: 52c0624a10cce phy: rockchip-emmc: Set phyctrl_frqsel based on card clock Signed-off-by: Chris Ruehl Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/20201210080454.17379-1-chris.ruehl@gtsys.com.hk Signed-off-by: Vinod Koul

phy: rockchip-emmc: output tap delay dt property

2020-12-05T08:10:48Z

Update the rockchip-emmc phy to set the otapdlysec register with a dt property. This was mentioned from Brian Norris when he sent the path to set the default value in the driver. This patch add a dt property 'output-tapdelay-select' u32 and allow to set the 0x0-0xf. If not set in dts, the old default 0x4 applies. Tested with our customized rk3399 to tune the eMMC. Signed-off-by: Chris Ruehl Link: https://lore.kernel.org/r/20201202082507.3536-2-chris.ruehl@gtsys.com.hk Signed-off-by: Vinod Koul

phy: rockchip: set pulldown for strobe line in dts

2020-12-05T08:07:58Z

This patch add support to set the internal pulldown via dt property and allow simplify the board design for the trace from emmc-phy to the eMMC chipset. Default to not set the pull-down. This patch was inspired from the 4.4 tree of the Rockchip SDK, where it is enabled unconditional. The patch had been tested with our rk3399 customized board. Signed-off-by: Chris Ruehl Link: https://lore.kernel.org/r/20201129054416.3980-2-chris.ruehl@gtsys.com.hk Signed-off-by: Vinod Koul

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235

2019-06-19T15:09:07Z

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 as published by the free software foundation either version 2 of the license 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 53 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.904365654@linutronix.de Signed-off-by: Greg Kroah-Hartman

phy: rockchip-emmc: Allow to set drive impedance via DTS.

2019-04-17T08:42:58Z

The rockchip-emmc PHY can be configured with different drive impedance values. Currenlty a value of 50 Ohm is hard coded into the driver. This patch introduces the DTS property 'drive-impedance-ohm' for the rockchip-emmc phy node, which uses the value from the DTS to setup the drive impedance accordingly. Signed-off-by: Christoph Muellner Signed-off-by: Philipp Tomsich Reviewed-by: Heiko Stuebner Signed-off-by: Kishon Vijay Abraham I

phy: Convert to using %pOFn instead of device_node.name

2018-09-25T10:40:07Z

In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Kishon Vijay Abraham I Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Rob Herring Signed-off-by: Kishon Vijay Abraham I

phy: rockchip-emmc: use regmap_read_poll_timeout to poll dllrdy

2018-03-08T08:26:23Z

Just use the API instead of open-coding it, no functional change intended. Signed-off-by: Shawn Lin Reviewed-by: Brian Norris Signed-off-by: Caesar Wang Reviewed-by: Douglas Anderson Signed-off-by: Kishon Vijay Abraham I

phy: rockchip-emmc: retry calpad busy trimming

2018-03-08T08:26:22Z

It turns out that 5us isn't enough for all cases, so let's retry some more times to wait for caldone. Signed-off-by: Shawn Lin Tested-by: Ziyuan Xu Signed-off-by: Caesar Wang Reviewed-by: Douglas Anderson Signed-off-by: Kishon Vijay Abraham I

phy: Group vendor specific phy drivers

2017-06-01T09:58:33Z

Adding vendor specific directories in phy to group phy drivers under their respective vendor umbrella. Also updated the MAINTAINERS file to reflect the correct directory structure for phy drivers. Signed-off-by: Vivek Gautam Acked-by: Heiko Stuebner Acked-by: Viresh Kumar Acked-by: Krzysztof Kozlowski Acked-by: Yoshihiro Shimoda Reviewed-by: Jaehoon Chung Cc: Kishon Vijay Abraham I Cc: David S. Miller Cc: Geert Uytterhoeven Cc: Yoshihiro Shimoda Cc: Guenter Roeck Cc: Heiko Stuebner Cc: Viresh Kumar Cc: Maxime Ripard Cc: Chen-Yu Tsai Cc: Sylwester Nawrocki Cc: Krzysztof Kozlowski Cc: Jaehoon Chung Cc: Stephen Boyd Cc: Martin Blumenstingl Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Kishon Vijay Abraham I