Re: [PATCH v4 0/3] clk: ultrarisc: add DP1000 clock support

[Jia Wang]

On 2026-07-21 17:45 -0400, Brian Masney wrote:
> Hi Jia,
> 
> On Mon, Jul 20, 2026 at 08:38:03AM +0800, Jia Wang via B4 Relay wrote:
> > This series exports a small common clock helper and adds the devicetree
> > binding and clock driver for the UltraRISC DP1000 SoC.
> > 
> > The clock tree is driven by a SYSPLL and provides fixed-factor clocks for
> > the subsystem and PCIe, divider-based root clocks for GMAC and the UART,
> > I2C, and SPI blocks, and per-instance gate clocks for UART0-3, I2C0-3,
> > and SPI0-1.
> > 
> > Testing:
> > - dt_binding_check and dtbs_check on ultrarisc,dp1000-clk
> > - Kernel build for RISC-V and boot-tested on DP1000
> > - Modules build test for CLK_ULTRARISC_DP1000
> > 
> > Signed-off-by: Jia Wang <wangjia@xxxxxxxxxxxxx>
> > ---
> > Changes in v4:
> > - Drop the initial clk_hw_get_rate() max-rate warning after setting the
> >   divider rate range.
> 
> I also see this in the diff between v3 and v4. Is this expected?
>

Yes, this is expected. The change only fixes the oddiv1/oddiv2 field naming
to match the hardware definition and does not affect PLL frequency
calculation.
 
>  +++ b/drivers/clk/ultrarisc/clk-dp1000.c
>  @@ -0,0 +1,154 @@
> @@ -309,8 +309,8 @@
>  +	.frac_mask = GENMASK(23, 0),
>  +	.m_mask = GENMASK(23, 16),
>  +	.n_mask = GENMASK(11, 6),
> -+	.oddiv1_mask = GENMASK(4, 3),
> -+	.oddiv2_mask = GENMASK(1, 0),
> ++	.oddiv1_mask = GENMASK(1, 0),
> ++	.oddiv2_mask = GENMASK(4, 3),
> 
> Brian
> 
> 

Best regards,
Jia Wang