X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=sound%2Fsoc%2Fcodecs%2Fwm8731.c;h=5a2619dbf283b8a6195eb912dae6fb2c9ae96149;hb=6679ee1870f7ccdd48e2e5c57919240b8f19a6dc;hp=3a497810f9391c36f9918f0a3c93e20dce5779e5;hpb=7547a3e8a43d31aaf91c2daf5f597e43212ccddf;p=mirror_ubuntu-bionic-kernel.git

diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 3a497810f939..5a2619dbf283 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -456,6 +456,9 @@ static int wm8731_resume(struct platform_device *pdev)
 
 	/* Sync reg_cache with the hardware */
 	for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) {
+		if (cache[i] == wm8731_reg[i])
+			continue;
+
 		data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
 		data[1] = cache[i] & 0x00ff;
 		codec->hw_write(codec->control_data, data, 2);