From 82da8df388004af4540e930ab3de2ce5787207e7 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Wed, 5 Aug 2026 15:27:47 +0300 Subject: [PATCH] ASoC: tegra210_i2s: sort the Tegra264 register default table reg_defaults must be sorted by ascending register address, as regcache_lookup_reg() locates entries in it with bsearch(). See commit fd80df352ba1 ("regcache: Add support for sorting defaults arrays"). TEGRA264_I2S_ENABLE (0x100), TEGRA264_I2S_RX_FIFO_WR_ACCESS_MODE (0x30) and TEGRA264_I2S_TX_FIFO_RD_ACCESS_MODE (0xb0) are listed at the end of the table, after TEGRA264_I2S_TIMING (0x130), which leaves 4 of the 9 entries unreachable. regcache_reg_needs_sync() then cannot compare them against their default and reports that a sync is needed, so they are written to the device on every regcache_sync() even when they were never touched. Sort the table by register address. Fixes: b3354438d898 ("ASoC: tegra: I2S: Add Tegra264 support") Cc: stable@vger.kernel.org Signed-off-by: Peter Ujfalusi Link: https://patch.msgid.link/20260805122748.13090-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/tegra/tegra210_i2s.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/tegra/tegra210_i2s.c b/sound/soc/tegra/tegra210_i2s.c index 8cac02671295..84506576437d 100644 --- a/sound/soc/tegra/tegra210_i2s.c +++ b/sound/soc/tegra/tegra210_i2s.c @@ -38,13 +38,13 @@ static const struct reg_default tegra210_i2s_reg_defaults[] = { static const struct reg_default tegra264_i2s_reg_defaults[] = { { TEGRA210_I2S_RX_INT_MASK, 0x00000003 }, { TEGRA210_I2S_RX_CIF_CTRL, 0x00003f00 }, + { TEGRA264_I2S_RX_FIFO_WR_ACCESS_MODE, 0x1 }, { TEGRA264_I2S_TX_INT_MASK, 0x00000003 }, { TEGRA264_I2S_TX_CIF_CTRL, 0x00003f00 }, + { TEGRA264_I2S_TX_FIFO_RD_ACCESS_MODE, 0x1 }, + { TEGRA264_I2S_ENABLE, 0x1 }, { TEGRA264_I2S_CG, 0x1 }, { TEGRA264_I2S_TIMING, 0x0000001f }, - { TEGRA264_I2S_ENABLE, 0x1 }, - { TEGRA264_I2S_RX_FIFO_WR_ACCESS_MODE, 0x1 }, - { TEGRA264_I2S_TX_FIFO_RD_ACCESS_MODE, 0x1 }, }; static void tegra210_i2s_set_slot_ctrl(struct tegra210_i2s *i2s,