From: Tony Lindgren
> Sent: 27 May 2019 13:14
> We need to also support 16-bit writes for i2c in addition to the reads
> when we start configuring the sysconfig register for reset and idle modes.
>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> ---
> drivers/bus/ti-sysc.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
> --- a/drivers/bus/ti-sysc.c
> +++ b/drivers/bus/ti-sysc.c
> @@ -100,6 +100,13 @@ static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
>
> static void sysc_write(struct sysc *ddata, int offset, u32 value)
> {
> + if (ddata->cfg.quirks & SYSC_QUIRK_16BIT) {
> + writew_relaxed(value & 0xffff, ddata->module_va + offset);
> + writew_relaxed(value >> 16, ddata->module_va + offset + 4);
Should that be + 2 ???
> +
> + return;
> + }
> +
> writel_relaxed(value, ddata->module_va + offset);
> }
David
-
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