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| author |   Luca Weiss <luca@lucaweiss.eu> | 2025-02-17 23:05:18 +0100 |
|---|---|---|
| committer |   Bjorn Andersson <andersson@kernel.org> | 2025-03-04 19:43:46 -0800 |
| commit | 4641840341f37dc8231e0840ec1514b4061b4322 (patch) | |
| tree | d3e6493cfaca5353b17c9b92c1cca46f10cc7422 | |
| parent | dt-bindings: remoteproc: qcom,msm8916-mss-pil: Add MSM8926 (diff) | |
| download | wireguard-linux-4641840341f37dc8231e0840ec1514b4061b4322.tar.xz wireguard-linux-4641840341f37dc8231e0840ec1514b4061b4322.zip | |
remoteproc: qcom_q6v5_mss: Handle platforms with one power domain
For example MSM8974 has mx voltage rail exposed as regulator and only cx
voltage rail is exposed as power domain. This power domain (cx) is
attached internally in power domain and cannot be attached in this driver.
Fixes: 8750cf392394 ("remoteproc: qcom_q6v5_mss: Allow replacing regulators with power domains")
Co-developed-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Reviewed-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Signed-off-by: Luca Weiss <luca@lucaweiss.eu>
Link: https://lore.kernel.org/r/20250217-msm8226-modem-v5-4-2bc74b80e0ae@lucaweiss.eu
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5_mss.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c index e78bd986dc3f..2c80d7fe39f8 100644 --- a/drivers/remoteproc/qcom_q6v5_mss.c +++ b/drivers/remoteproc/qcom_q6v5_mss.c @@ -1831,6 +1831,13 @@ static int q6v5_pds_attach(struct device *dev, struct device **devs, while (pd_names[num_pds]) num_pds++; + /* Handle single power domain */ + if (num_pds == 1 && dev->pm_domain) { + devs[0] = dev; + pm_runtime_enable(dev); + return 1; + } + for (i = 0; i < num_pds; i++) { devs[i] = dev_pm_domain_attach_by_name(dev, pd_names[i]); if (IS_ERR_OR_NULL(devs[i])) { @@ -1851,8 +1858,15 @@ unroll_attach: static void q6v5_pds_detach(struct q6v5 *qproc, struct device **pds, size_t pd_count) { + struct device *dev = qproc->dev; int i; + /* Handle single power domain */ + if (pd_count == 1 && dev->pm_domain) { + pm_runtime_disable(dev); + return; + } + for (i = 0; i < pd_count; i++) dev_pm_domain_detach(pds[i], false); } @@ -2449,13 +2463,13 @@ static const struct rproc_hexagon_res msm8974_mss = { .supply = "pll", .uA = 100000, }, - {} - }, - .fallback_proxy_supply = (struct qcom_mss_reg_res[]) { { .supply = "mx", .uV = 1050000, }, + {} + }, + .fallback_proxy_supply = (struct qcom_mss_reg_res[]) { { .supply = "cx", .uA = 100000, @@ -2481,7 +2495,6 @@ static const struct rproc_hexagon_res msm8974_mss = { NULL }, .proxy_pd_names = (char*[]){ - "mx", "cx", NULL }, |