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remoteproc: q6v5: Introduce reset assert/deassert helper functions 

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>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
hifive-unleashed-5.1
Sibi Sankar 2018-05-21 22:57:12 +05:30 committed by Bjorn Andersson
parent fb22022ff6
commit 9f135fa1ff
1 changed files with 13 additions and 3 deletions
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16
drivers/remoteproc/qcom_q6v5_pil.c
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@ -337,6 +337,16 @@ 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;
@ -755,7 +765,7 @@ 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;
@ -843,7 +853,7 @@ disable_active_clks:
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);
@ -896,7 +906,7 @@ 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);
disable_irq(qproc->handover_irq);