This is a note to let you know that I've just added the patch titled
mmc: sunxi-mmc: Fix A100 compatible description
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-sunxi-mmc-fix-a100-compatible-description.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c019751a094d6726758210d35539894c0f1e4047
Author: Andre Przywara <andre.przywara@xxxxxxx>
Date: Thu Nov 7 01:42:40 2024 +0000
mmc: sunxi-mmc: Fix A100 compatible description
[ Upstream commit 85b580afc2c215394e08974bf033de9face94955 ]
It turns out that the Allwinner A100/A133 SoC only supports 8K DMA
blocks (13 bits wide), for both the SD/SDIO and eMMC instances.
And while this alone would make a trivial fix, the H616 falls back to
the A100 compatible string, so we have to now match the H616 compatible
string explicitly against the description advertising 64K DMA blocks.
As the A100 is now compatible with the D1 description, let the A100
compatible string point to that block instead, and introduce an explicit
match against the H616 string, pointing to the old description.
Also remove the redundant setting of clk_delays to NULL on the way.
Fixes: 3536b82e5853 ("mmc: sunxi: add support for A100 mmc controller")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
Tested-by: Parthiban Nallathambi <parthiban@xxxxxxxxxxx>
Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
Message-ID: <20241107014240.24669-1-andre.przywara@xxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index cd81f9a79169e..1b6e41d55b622 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1191,10 +1191,9 @@ static const struct sunxi_mmc_cfg sun50i_a64_emmc_cfg = {
.needs_new_timings = true,
};
-static const struct sunxi_mmc_cfg sun50i_a100_cfg = {
+static const struct sunxi_mmc_cfg sun50i_h616_cfg = {
.idma_des_size_bits = 16,
.idma_des_shift = 2,
- .clk_delays = NULL,
.can_calibrate = true,
.mask_data0 = true,
.needs_new_timings = true,
@@ -1217,8 +1216,9 @@ static const struct of_device_id sunxi_mmc_of_match[] = {
{ .compatible = "allwinner,sun20i-d1-mmc", .data = &sun20i_d1_cfg },
{ .compatible = "allwinner,sun50i-a64-mmc", .data = &sun50i_a64_cfg },
{ .compatible = "allwinner,sun50i-a64-emmc", .data = &sun50i_a64_emmc_cfg },
- { .compatible = "allwinner,sun50i-a100-mmc", .data = &sun50i_a100_cfg },
+ { .compatible = "allwinner,sun50i-a100-mmc", .data = &sun20i_d1_cfg },
{ .compatible = "allwinner,sun50i-a100-emmc", .data = &sun50i_a100_emmc_cfg },
+ { .compatible = "allwinner,sun50i-h616-mmc", .data = &sun50i_h616_cfg },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, sunxi_mmc_of_match);
