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Subject[PATCH v5 6/8] remoteproc: qcom: Introduce reset assert/deassert helper functions
Date
Adding reset assert/deassert helper functions to handle SoC
specific reset sequences. This wil be used by SDM845 to assert and
deassert ALT_RESET and MSS_RESET signals.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
drivers/remoteproc/qcom_q6v5_pil.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index a5fa6521bb83..552805bc07c1 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -352,6 +352,16 @@ static int q6v5_load(struct rproc *rproc, const struct firmware *fw)
return 0;
}

+static int q6v5_reset_assert(struct q6v5 *qproc)
+{
+ return reset_control_assert(qproc->mss_restart);
+}
+
+static int q6v5_reset_deassert(struct q6v5 *qproc)
+{
+ return reset_control_deassert(qproc->mss_restart);
+}
+
static int q6v5_rmb_pbl_wait(struct q6v5 *qproc, int ms)
{
unsigned long timeout;
@@ -767,7 +777,7 @@ static int q6v5_start(struct rproc *rproc)
dev_err(qproc->dev, "failed to enable supplies\n");
goto disable_proxy_clk;
}
- ret = reset_control_deassert(qproc->mss_restart);
+ ret = q6v5_reset_deassert(qproc);
if (ret) {
dev_err(qproc->dev, "failed to deassert mss restart\n");
goto disable_vdd;
@@ -859,7 +869,7 @@ static int q6v5_start(struct rproc *rproc)
qproc->active_clk_count);

assert_reset:
- reset_control_assert(qproc->mss_restart);
+ q6v5_reset_assert(qproc);
disable_vdd:
q6v5_regulator_disable(qproc, qproc->active_regs,
qproc->active_reg_count);
@@ -909,7 +919,7 @@ static int q6v5_stop(struct rproc *rproc)
qproc->mpss_phys, qproc->mpss_size);
WARN_ON(ret);

- reset_control_assert(qproc->mss_restart);
+ q6v5_reset_assert(qproc);
q6v5_disable_irqs(qproc);

if (!qproc->unvoted_flag) {
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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