Re: [PATCH v2 5/6] drivers: qcom: rpmh-rsc: write PDC data

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On Wed, Sep 12 2018 at 16:28 -0600, Matthias Kaehlcke wrote:
On Fri, Jul 27, 2018 at 03:34:48PM +0530, Raju P L S S S N wrote:
From: Lina Iyer <ilina@xxxxxxxxxxxxxx>

The Power Domain Controller can be programmed to wakeup the RSC and
setup the resources back in the active state, before the processor is
woken up by a timer interrupt. The wakeup value from the timer hardware
can be copied to the PDC which has its own timer and is in an always-on
power domain. Programming the wakeup value is done through a separate
register on the RSC.

Signed-off-by: Lina Iyer <ilina@xxxxxxxxxxxxxx>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@xxxxxxxxxxxxxx>
---
Changes in v2:
   - Remove unnecessary EXPORT_SYMBOL
---

+int rpmh_rsc_write_pdc_data(struct rsc_drv *drv, const struct tcs_request *msg)
+{
+	int i;
+	void __iomem *addr = drv->base + RSC_PDC_DRV_DATA;
+
+	if (!msg || !msg->cmds || msg->num_cmds != RSC_PDC_DATA_SIZE)
+		return -EINVAL;

Is it really always exactly 2 (RSC_PDC_DATA_SIZE) commands?

Yes, always.




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