diff options
| author | WeiHao Li <cn.liweihao@gmail.com> | 2025-09-06 22:21:25 +0800 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2025-10-21 11:19:53 +0200 |
| commit | fc3d701f0d75ffbd788991cbf84f4937435e504e (patch) | |
| tree | a318fbf0cbc08591093486f8c31b4b97f08427bb /drivers/soc/rockchip/grf.c | |
| parent | 3a8660878839faadb4f1a6dd72c3179c1df56787 (diff) | |
soc: rockchip: grf: Set pwm2/xin32k pad default to xin32k for rk3368
PWM2 and xin32k share the same pad, but some peripheral need the xin32k
clock to run properly, such as tsadc. I have observed that this pad is
used as xin32k by default on some existing board [1], so it maybe more
appropriate to set it to xin32k by default.
I also tested it on another rk3368 based board [2], without this adjust,
tsadc does not work properly.
[1] https://rockchip.fr/geekbox/Geekbox_V1.23.pdf
[2] https://ieiao.github.io/wiki/embedded-dev/rockchip/rk3368
Signed-off-by: WeiHao Li <cn.liweihao@gmail.com>
Link: https://patch.msgid.link/20250906142125.7602-1-cn.liweihao@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/soc/rockchip/grf.c')
| -rw-r--r-- | drivers/soc/rockchip/grf.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c index 344870da7675..c0c2ec1296f5 100644 --- a/drivers/soc/rockchip/grf.c +++ b/drivers/soc/rockchip/grf.c @@ -98,6 +98,17 @@ static const struct rockchip_grf_info rk3368_grf __initconst = { .num_values = ARRAY_SIZE(rk3368_defaults), }; +#define RK3368_PMUGRF_SOC_CON0 0x100 + +static const struct rockchip_grf_value rk3368_pmugrf_defaults[] __initconst = { + { "pwm2 select", RK3368_PMUGRF_SOC_CON0, FIELD_PREP_WM16_CONST(BIT(7), 0) }, +}; + +static const struct rockchip_grf_info rk3368_pmugrf __initconst = { + .values = rk3368_pmugrf_defaults, + .num_values = ARRAY_SIZE(rk3368_pmugrf_defaults), +}; + #define RK3399_GRF_SOC_CON7 0xe21c static const struct rockchip_grf_value rk3399_defaults[] __initconst = { @@ -176,6 +187,9 @@ static const struct of_device_id rockchip_grf_dt_match[] __initconst = { .compatible = "rockchip,rk3368-grf", .data = (void *)&rk3368_grf, }, { + .compatible = "rockchip,rk3368-pmugrf", + .data = (void *)&rk3368_pmugrf, + }, { .compatible = "rockchip,rk3399-grf", .data = (void *)&rk3399_grf, }, { |