aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/remoteproc
diff options
context:
space:
mode:
authorAvaneesh Kumar Dwivedi <akdwived@codeaurora.org>2017-01-30 20:33:07 +0530
committerBjorn Andersson <bjorn.andersson@linaro.org>2017-01-30 13:33:19 -0800
commite323fc030c458d2f3eb1b9031cb4334ebf9a3484 (patch)
treeffd8259ff6c31c7d2988b112e7276de93f0497dc /drivers/remoteproc
parentc7715e47bf6dc4c52297cde7b7aedc4530937dc5 (diff)
remoteproc: qcom: Add additional agree2_clk and px regulator resource.
This patch add additional clock and regulator resource which are initialized based on compatible and has no impact on existing driver working. This resourse addition enable the existing driver to handle. low pass sensor processor device also. Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/qcom_adsp_pil.c43
1 files changed, 38 insertions, 5 deletions
diff --git a/drivers/remoteproc/qcom_adsp_pil.c b/drivers/remoteproc/qcom_adsp_pil.c
index 1a07d8e05615..87f8d4069500 100644
--- a/drivers/remoteproc/qcom_adsp_pil.c
+++ b/drivers/remoteproc/qcom_adsp_pil.c
@@ -36,6 +36,7 @@ struct adsp_data {
int crash_reason_smem;
const char *firmware_name;
int pas_id;
+ bool has_aggre2_clk;
};
struct qcom_adsp {
@@ -52,11 +53,14 @@ struct qcom_adsp {
unsigned stop_bit;
struct clk *xo;
+ struct clk *aggre2_clk;
struct regulator *cx_supply;
+ struct regulator *px_supply;
int pas_id;
int crash_reason_smem;
+ bool has_aggre2_clk;
struct completion start_done;
struct completion stop_done;
@@ -115,15 +119,23 @@ static int adsp_start(struct rproc *rproc)
if (ret)
return ret;
+ ret = clk_prepare_enable(adsp->aggre2_clk);
+ if (ret)
+ goto disable_xo_clk;
+
ret = regulator_enable(adsp->cx_supply);
if (ret)
- goto disable_clocks;
+ goto disable_aggre2_clk;
+
+ ret = regulator_enable(adsp->px_supply);
+ if (ret)
+ goto disable_cx_supply;
ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
if (ret) {
dev_err(adsp->dev,
"failed to authenticate image and release reset\n");
- goto disable_regulators;
+ goto disable_px_supply;
}
ret = wait_for_completion_timeout(&adsp->start_done,
@@ -132,14 +144,18 @@ static int adsp_start(struct rproc *rproc)
dev_err(adsp->dev, "start timed out\n");
qcom_scm_pas_shutdown(adsp->pas_id);
ret = -ETIMEDOUT;
- goto disable_regulators;
+ goto disable_px_supply;
}
ret = 0;
-disable_regulators:
+disable_px_supply:
+ regulator_disable(adsp->px_supply);
+disable_cx_supply:
regulator_disable(adsp->cx_supply);
-disable_clocks:
+disable_aggre2_clk:
+ clk_disable_unprepare(adsp->aggre2_clk);
+disable_xo_clk:
clk_disable_unprepare(adsp->xo);
return ret;
@@ -250,6 +266,17 @@ static int adsp_init_clock(struct qcom_adsp *adsp)
return ret;
}
+ if (adsp->has_aggre2_clk) {
+ adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2");
+ if (IS_ERR(adsp->aggre2_clk)) {
+ ret = PTR_ERR(adsp->aggre2_clk);
+ if (ret != -EPROBE_DEFER)
+ dev_err(adsp->dev,
+ "failed to get aggre2 clock");
+ return ret;
+ }
+ }
+
return 0;
}
@@ -261,6 +288,10 @@ static int adsp_init_regulator(struct qcom_adsp *adsp)
regulator_set_load(adsp->cx_supply, 100000);
+ adsp->px_supply = devm_regulator_get(adsp->dev, "px");
+ if (IS_ERR(adsp->px_supply))
+ return PTR_ERR(adsp->px_supply);
+
return 0;
}
@@ -348,6 +379,7 @@ static int adsp_probe(struct platform_device *pdev)
adsp->rproc = rproc;
adsp->pas_id = desc->pas_id;
adsp->crash_reason_smem = desc->crash_reason_smem;
+ adsp->has_aggre2_clk = desc->has_aggre2_clk;
platform_set_drvdata(pdev, adsp);
init_completion(&adsp->start_done);
@@ -424,6 +456,7 @@ static const struct adsp_data adsp_resource_init = {
.crash_reason_smem = 423,
.firmware_name = "adsp.mdt",
.pas_id = 1,
+ .has_aggre2_clk = false,
};
static const struct of_device_id adsp_of_match[] = {

Privacy Policy