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SubjectRe: [PATCH v6 3/3] soc: qcom: rpmh: Invoke rpmh_flush for dirty caches
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As power domain support is dropped in v6 , please update commit text 
accordingly.
Post the update of commit text, you can add my reviewed by.

Reviewed-by: Srinivas Rao L <lsrao@codeaurora.org>

Regards,
Srinivas.

On 2/21/2020 3:02 PM, Maulik Shah wrote:
> Add changes to invoke rpmh flush when the data in cache is dirty.
>
> This is done only if OSI is not supported in PSCI. If OSI is supported
> rpmh_flush will get invoked by power domain off call when the last cpu
> in the domain is going to power collapse.
>
> Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
> ---
> drivers/soc/qcom/rpmh.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c
> index 83ba4e0..839af8d 100644
> --- a/drivers/soc/qcom/rpmh.c
> +++ b/drivers/soc/qcom/rpmh.c
> @@ -12,6 +12,7 @@
> #include <linux/module.h>
> #include <linux/of.h>
> #include <linux/platform_device.h>
> +#include <linux/psci.h>
> #include <linux/slab.h>
> #include <linux/spinlock.h>
> #include <linux/types.h>
> @@ -163,6 +164,9 @@ static struct cache_req *cache_rpm_request(struct rpmh_ctrlr *ctrlr,
> unlock:
> spin_unlock_irqrestore(&ctrlr->cache_lock, flags);
>
> + if (ctrlr->dirty && !psci_has_osi_support())
> + return rpmh_flush(ctrlr) ? ERR_PTR(-EINVAL) : req;
> +
> return req;
> }
>
> @@ -391,6 +395,8 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
>
> if (state != RPMH_ACTIVE_ONLY_STATE) {
> cache_batch(ctrlr, req);
> + if (!psci_has_osi_support())
> + return rpmh_flush(ctrlr);
> return 0;
> }
>

--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

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