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authorBjorn Andersson <bjorn.andersson@linaro.org>2019-01-30 16:39:31 -0800
committerBjorn Andersson <bjorn.andersson@linaro.org>2019-01-30 16:56:15 -0800
commitdeb9bb83e7ae742fcd37d3ab90e8b6ab5fff822a (patch)
treef64b0ca2660b43a3ba8f7050f693b8775e79b3d9 /drivers
parent4760a896be88e836bedc902932fb16f60499a25e (diff)
downloadlinux-deb9bb83e7ae742fcd37d3ab90e8b6ab5fff822a.tar.gz
remoteproc: q6v5-mss: Active powerdomain for SDM845
The SDM845 MSS needs the load_state powerdomain voted for during the duration of the MSS being powered on, to let the AOSS know that it may not perform certain power save measures. So vote for this. Tested-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/remoteproc/qcom_q6v5_mss.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 1a428dad5f11..eacdf10fcfaf 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -133,6 +133,7 @@ struct rproc_hexagon_res {
char **proxy_clk_names;
char **reset_clk_names;
char **active_clk_names;
+ char **active_pd_names;
char **proxy_pd_names;
int version;
bool need_mem_protection;
@@ -159,10 +160,12 @@ struct q6v5 {
struct clk *active_clks[8];
struct clk *reset_clks[4];
struct clk *proxy_clks[4];
+ struct device *active_pds[1];
struct device *proxy_pds[3];
int active_clk_count;
int reset_clk_count;
int proxy_clk_count;
+ int active_pd_count;
int proxy_pd_count;
struct reg_info active_regs[1];
@@ -731,10 +734,16 @@ static int q6v5_mba_load(struct q6v5 *qproc)
qcom_q6v5_prepare(&qproc->q6v5);
+ ret = q6v5_pds_enable(qproc, qproc->active_pds, qproc->active_pd_count);
+ if (ret < 0) {
+ dev_err(qproc->dev, "failed to enable active power domains\n");
+ goto disable_irqs;
+ }
+
ret = q6v5_pds_enable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
if (ret < 0) {
dev_err(qproc->dev, "failed to enable proxy power domains\n");
- goto disable_irqs;
+ goto disable_active_pds;
}
ret = q6v5_regulator_enable(qproc, qproc->proxy_regs,
@@ -840,6 +849,8 @@ disable_proxy_reg:
qproc->proxy_reg_count);
disable_proxy_pds:
q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+disable_active_pds:
+ q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
disable_irqs:
qcom_q6v5_unprepare(&qproc->q6v5);
@@ -879,6 +890,7 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
qproc->active_clk_count);
q6v5_regulator_disable(qproc, qproc->active_regs,
qproc->active_reg_count);
+ q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
/* In case of failure or coredump scenario where reclaiming MBA memory
* could not happen reclaim it here.
@@ -1441,11 +1453,19 @@ static int q6v5_probe(struct platform_device *pdev)
}
qproc->active_reg_count = ret;
+ ret = q6v5_pds_attach(&pdev->dev, qproc->active_pds,
+ desc->active_pd_names);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to attach active power domains\n");
+ goto free_rproc;
+ }
+ qproc->active_pd_count = ret;
+
ret = q6v5_pds_attach(&pdev->dev, qproc->proxy_pds,
desc->proxy_pd_names);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to init power domains\n");
- goto free_rproc;
+ goto detach_active_pds;
}
qproc->proxy_pd_count = ret;
@@ -1481,6 +1501,8 @@ static int q6v5_probe(struct platform_device *pdev)
detach_proxy_pds:
q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+detach_active_pds:
+ q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
free_rproc:
rproc_free(rproc);
@@ -1498,6 +1520,7 @@ static int q6v5_remove(struct platform_device *pdev)
qcom_remove_smd_subdev(qproc->rproc, &qproc->smd_subdev);
qcom_remove_ssr_subdev(qproc->rproc, &qproc->ssr_subdev);
+ q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
rproc_free(qproc->rproc);
@@ -1524,6 +1547,10 @@ static const struct rproc_hexagon_res sdm845_mss = {
"mnoc_axi",
NULL
},
+ .active_pd_names = (char*[]){
+ "load_state",
+ NULL
+ },
.proxy_pd_names = (char*[]){
"cx",
"mx",