From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B83577E for ; Wed, 2 Nov 2022 03:03:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0FE0C433D6; Wed, 2 Nov 2022 03:03:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667358209; bh=iKGK/GthN4kOlqdEnNGn7TuhJCouqT48wyBlyHJELzo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mq/kh7GneYZzNKWxSVMDPgzrWnJcu30hhEdty61G5/tz8bWgqUk60NnYP1SjLqUyh krBs0d7UvYrNI/RD5EAiM4qzxU69m5vkZR5sigCX2+KJbUS0slQMmxYwIYSt30bgeG OoipD1yBGz+hTiX50b2Ns2OvsiYYqbCqnlrWoXvY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Srinivasa Rao Mandadapu , Kuogee Hsieh , Mark Brown , Sasha Levin Subject: [PATCH 5.15 060/132] ASoC: qcom: lpass-cpu: mark HDMI TX registers as volatile Date: Wed, 2 Nov 2022 03:32:46 +0100 Message-Id: <20221102022101.187665380@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221102022059.593236470@linuxfoundation.org> References: <20221102022059.593236470@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Srinivasa Rao Mandadapu [ Upstream commit c9a3545b1d771fb7b06a487796c40288c02c41c5 ] 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 Signed-off-by: Sasha Levin --- sound/soc/qcom/lpass-cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 5e89d280e355..b37f4736ee10 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -779,10 +779,18 @@ 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; } -- 2.35.1