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d7009faa09
On RK3568 most pins have a configurable drive strength of level 0-5 and
some pins level 0-11. When rk3568_set_drive is called with a strength
value above 7 the drv value written to reg may overflow into the write
enable bits, resulting in a bad configuration.
This cause e.g. ethernet PHY on Radxa CM3-IO board not to work after
drive is configured according to the device tree.
Could not get PHY for ethernet@fe010000: addr 0
Level 6-11 can be configured using a second reg for some pins, however
the drv value is reused resulting in lower 6 bits being written to reg.
Input schmitt is configured in 2-bit fields on RK3568 compared to
earlier generation and 2'b10 should be used to enable input schmitt.
Change to use regmap_update_bits with a rmask to fix the overflow issue
and closer match the linux driver. Bit shift the drv value used for the
second reg to configure drive strength level 6-11. Also write correct
values for input schmitt setting.
Fixes:
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|---|---|---|
| .. | ||
| aspeed | ||
| ath79 | ||
| broadcom | ||
| exynos | ||
| intel | ||
| mediatek | ||
| meson | ||
| mscc | ||
| mtmips | ||
| mvebu | ||
| nexell | ||
| nuvoton | ||
| nxp | ||
| renesas | ||
| rockchip | ||
| starfive | ||
| sunxi | ||
| uniphier | ||
| Kconfig | ||
| Makefile | ||
| pinctrl-apple.c | ||
| pinctrl-at91-pio4.c | ||
| pinctrl-at91.c | ||
| pinctrl-generic.c | ||
| pinctrl-k210.c | ||
| pinctrl-qe-io.c | ||
| pinctrl-sandbox.c | ||
| pinctrl-single.c | ||
| pinctrl-sti.c | ||
| pinctrl-stmfx.c | ||
| pinctrl-uclass.c | ||
| pinctrl-zynqmp.c | ||
| pinctrl_pic32.c | ||
| pinctrl_stm32.c | ||