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authorSibi Sankar <sibis@codeaurora.org>2018-05-21 20:27:12 +0300
committerBjorn Andersson <bjorn.andersson@linaro.org>2018-05-30 06:10:34 +0300
commit9f135fa1ffea3005f0d8021e55463134a2175928 (patch)
treef9831cea3cebfcfe642710c6d48e00aa6d5db949 /drivers/remoteproc
parentfb22022ff63ddbc51face6fb2f06496ae90d3293 (diff)
downloadlinux-9f135fa1ffea3005f0d8021e55463134a2175928.tar.xz
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>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/qcom_q6v5_pil.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index a7c325ef78a1..7e2691c9c034 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -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);