Had a typo in lpass platform driver that resulted in crash during suspend/resume with an HDMI dongle connected.
The regmap read/write/volatile regesters validation callbacks in lpass-cpu were using MI2S rdma_channels count instead of hdmi_rdma_channels.
This typo error causing to read registers from the regmap beyond the length of the mapping created by ioremap().
This fix avoids the need for reducing number hdmi_rdma_channels, which is done in commit 7dfe20ee92f6 ("ASoC: qcom: Fix number of HDMI RDMA channels on sc7180"). So reverting the same.
Fixes: 7cb37b7bd0d3c ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Srinivasa Rao Mandadapu srivasam@codeaurora.org --- sound/soc/qcom/lpass-cpu.c | 8 ++++---- sound/soc/qcom/lpass-sc7180.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index a669202e0001..c642e5f8f28c 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -595,7 +595,7 @@ static bool lpass_hdmi_regmap_writeable(struct device *dev, unsigned int reg) return true; }
- for (i = 0; i < v->rdma_channels; ++i) { + for (i = 0; i < v->hdmi_rdma_channels; ++i) { if (reg == LPAIF_HDMI_RDMACTL_REG(v, i)) return true; if (reg == LPAIF_HDMI_RDMABASE_REG(v, i)) @@ -641,7 +641,7 @@ static bool lpass_hdmi_regmap_readable(struct device *dev, unsigned int reg) if (reg == LPASS_HDMITX_APP_IRQSTAT_REG(v)) return true;
- for (i = 0; i < v->rdma_channels; ++i) { + for (i = 0; i < v->hdmi_rdma_channels; ++i) { if (reg == LPAIF_HDMI_RDMACTL_REG(v, i)) return true; if (reg == LPAIF_HDMI_RDMABASE_REG(v, i)) @@ -668,7 +668,7 @@ static bool lpass_hdmi_regmap_volatile(struct device *dev, unsigned int reg) if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v)) return true;
- for (i = 0; i < v->rdma_channels; ++i) { + for (i = 0; i < v->hdmi_rdma_channels; ++i) { if (reg == LPAIF_HDMI_RDMACURR_REG(v, i)) return true; } @@ -812,7 +812,7 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev) return PTR_ERR(drvdata->hdmiif);
lpass_hdmi_regmap_config.max_register = LPAIF_HDMI_RDMAPER_REG(variant, - variant->hdmi_rdma_channels); + variant->hdmi_rdma_channels - 1); drvdata->hdmiif_map = devm_regmap_init_mmio(dev, drvdata->hdmiif, &lpass_hdmi_regmap_config); if (IS_ERR(drvdata->hdmiif_map)) { diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c index 735c9dac28f2..8c168d3c589e 100644 --- a/sound/soc/qcom/lpass-sc7180.c +++ b/sound/soc/qcom/lpass-sc7180.c @@ -171,7 +171,7 @@ static struct lpass_variant sc7180_data = { .rdma_channels = 5, .hdmi_rdma_reg_base = 0x64000, .hdmi_rdma_reg_stride = 0x1000, - .hdmi_rdma_channels = 3, + .hdmi_rdma_channels = 4, .dmactl_audif_start = 1, .wrdma_reg_base = 0x18000, .wrdma_reg_stride = 0x1000,