From c9a3545b1d771fb7b06a487796c40288c02c41c5 Mon Sep 17 00:00:00 2001 From: Srinivasa Rao Mandadapu Date: Thu, 13 Oct 2022 10:38:31 +0530 Subject: ASoC: qcom: lpass-cpu: mark HDMI TX registers as volatile Update HDMI volatile registers list as DMA, Channel Selection registers, vbit control registers are being reflected by hardware DP port disconnection. This update is required to fix no display and no sound issue observed after reconnecting TAMA/SANWA DP cables. Once DP cable is unplugged, DMA control registers are being reset by hardware, however at second plugin, new dma control values does not updated to the dma hardware registers since new register value and cached values at the time of first plugin are same. Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver") Signed-off-by: Srinivasa Rao Mandadapu Reported-by: Kuogee Hsieh Link: https://lore.kernel.org/r/1665637711-13300-1-git-send-email-quic_srivasam@quicinc.com Signed-off-by: Mark Brown --- sound/soc/qcom/lpass-cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'sound/soc/qcom/lpass-cpu.c') diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 8a56f38dc7e8..99a3b4428591 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -782,10 +782,18 @@ static bool lpass_hdmi_regmap_volatile(struct device *dev, unsigned int reg) return true; if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v)) return true; + if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v)) + return true; for (i = 0; i < v->hdmi_rdma_channels; ++i) { if (reg == LPAIF_HDMI_RDMACURR_REG(v, i)) return true; + if (reg == LPASS_HDMI_TX_DMA_ADDR(v, i)) + return true; + if (reg == LPASS_HDMI_TX_CH_LSB_ADDR(v, i)) + return true; + if (reg == LPASS_HDMI_TX_CH_MSB_ADDR(v, i)) + return true; } return false; } -- cgit v1.2.3