On 10/17, Stefan Agner wrote: > The Synchronous Audio Interface (SAI) instances are clocked by > independent clocks: The bus clock and the audio clock (as shown in > Figure 51-1 in the Vybrid Reference Manual). The clock gates in > CCGR0/CCGR1 for SAI0 through SAI3 are bus clock gates, as access > tests to the registers with/without gating those clocks have shown. > The audio clock is gated by the SAIx_EN gates in CCM_CSCDR1, > followed by a clock divider (SAIx_DIV). Currently, the parent of > the bus clock gates has been assigned to SAIx_DIV, which is not > involved in the bus clock path for the SAI instances (see chapter > 9.10.12, SAI clocking in the Vybrid Reference Manual). > > Fix this by define the parent clock of VF610_CLK_SAIx to be the bus > clock. > > If the driver needs the audio clock (when used in master mode), a > fixed device tree is required which assign the audio clock properly > to VF610_CLK_SAIx_DIV. > > Signed-off-by: Stefan Agner <stefan@xxxxxxxx> > --- Acked-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
