linux-kernel - [PATCH 5/6] ASoC: codecs: va-macro: clear the frame sync counter before enabling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 18 Aug 2022 14:46:18 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     broonie@...nel.org
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        perex@...ex.cz, tiwai@...e.com,
        pierre-louis.bossart@...ux.intel.com,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 5/6] ASoC: codecs: va-macro: clear the frame sync counter before enabling

Clear the frame sync counter before enabling it.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/soc/codecs/lpass-va-macro.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/lpass-va-macro.c b/sound/soc/codecs/lpass-va-macro.c
index 1ea10dc70748..a35f684053d2 100644
--- a/sound/soc/codecs/lpass-va-macro.c
+++ b/sound/soc/codecs/lpass-va-macro.c
@@ -23,6 +23,7 @@
 #define CDC_VA_MCLK_CONTROL_EN			BIT(0)
 #define CDC_VA_CLK_RST_CTRL_FS_CNT_CONTROL	(0x0004)
 #define CDC_VA_FS_CONTROL_EN			BIT(0)
+#define CDC_VA_FS_COUNTER_CLR			BIT(1)
 #define CDC_VA_CLK_RST_CTRL_SWR_CONTROL		(0x0008)
 #define CDC_VA_TOP_CSR_TOP_CFG0			(0x0080)
 #define CDC_VA_FS_BROADCAST_EN			BIT(1)
@@ -423,9 +424,12 @@ static int va_clk_rsc_fs_gen_request(struct va_macro *va, bool enable)
 		regmap_update_bits(regmap, CDC_VA_CLK_RST_CTRL_MCLK_CONTROL,
 				   CDC_VA_MCLK_CONTROL_EN,
 				   CDC_VA_MCLK_CONTROL_EN);
-
+		/* clear the fs counter */
+		regmap_update_bits(regmap, CDC_VA_CLK_RST_CTRL_FS_CNT_CONTROL,
+				   CDC_VA_FS_CONTROL_EN | CDC_VA_FS_COUNTER_CLR,
+				   CDC_VA_FS_CONTROL_EN | CDC_VA_FS_COUNTER_CLR);
 		regmap_update_bits(regmap, CDC_VA_CLK_RST_CTRL_FS_CNT_CONTROL,
-				   CDC_VA_FS_CONTROL_EN,
+				   CDC_VA_FS_CONTROL_EN | CDC_VA_FS_COUNTER_CLR,
 				   CDC_VA_FS_CONTROL_EN);
 
 		regmap_update_bits(regmap, CDC_VA_TOP_CSR_TOP_CFG0,
-- 
2.21.0