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| author | Sibi Sankar <sibis@codeaurora.org> | 2021-09-16 19:29:21 +0530 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2021-09-27 15:43:29 -0500 |
| commit | c1fe10d238c0256a77dbc4bf6493b9782b2a218d (patch) | |
| tree | 0dd439404f4dbb55c5dc6ab36de113fbf38a6a3b /drivers/remoteproc/qcom_q6v5.h | |
| parent | 8443ef7b5771830bc86c9e2c1622b55ddf33f0f5 (diff) | |
| download | linux-c1fe10d238c0256a77dbc4bf6493b9782b2a218d.tar.bz2 | |
remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state
The power domains exposed by the AOSS QMP driver control the load state
resources linked to modem, adsp, cdsp remoteprocs. These are used to
notify the Always on Subsystem (AOSS) that a particular co-processor is
up/down. AOSS uses this information to wait for the co-processors to
suspend before starting its sleep sequence.
These co-processors enter low-power modes independent to that of the
application processor and the load state resources linked to them are
expected to remain unaltered across system suspend/resume cycles. To
achieve this behavior lets stop using the power-domains exposed by the
AOSS QMP node and replace them with generic qmp_send interface instead.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
[bjorn: Fixed up build error in q6v5_wcss_remove()]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631800770-371-5-git-send-email-sibis@codeaurora.org
Diffstat (limited to 'drivers/remoteproc/qcom_q6v5.h')
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/remoteproc/qcom_q6v5.h b/drivers/remoteproc/qcom_q6v5.h index 1c212f670cbc..f35e04471ed7 100644 --- a/drivers/remoteproc/qcom_q6v5.h +++ b/drivers/remoteproc/qcom_q6v5.h @@ -5,6 +5,7 @@ #include <linux/kernel.h> #include <linux/completion.h> +#include <linux/soc/qcom/qcom_aoss.h> struct rproc; struct qcom_smem_state; @@ -15,6 +16,8 @@ struct qcom_q6v5 { struct rproc *rproc; struct qcom_smem_state *state; + struct qmp *qmp; + unsigned stop_bit; int wdog_irq; @@ -32,12 +35,14 @@ struct qcom_q6v5 { bool running; + const char *load_state; void (*handover)(struct qcom_q6v5 *q6v5); }; int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev, - struct rproc *rproc, int crash_reason, + struct rproc *rproc, int crash_reason, const char *load_state, void (*handover)(struct qcom_q6v5 *q6v5)); +void qcom_q6v5_deinit(struct qcom_q6v5 *q6v5); int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5); int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5); |