This is a note to let you know that I've just added the patch titled
mmc: sdhci-esdhc-imx: Propagate ESDHC_FLAG_HS400* only on 8bit bus
to the 6.0-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-sdhci-esdhc-imx-propagate-esdhc_flag_hs400-only-on-8bit-bus.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1ed5c3b22fc78735c539e4767832aea58db6761c Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Date: Thu, 13 Oct 2022 11:32:48 +0200
Subject: mmc: sdhci-esdhc-imx: Propagate ESDHC_FLAG_HS400* only on 8bit bus
From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
commit 1ed5c3b22fc78735c539e4767832aea58db6761c upstream.
The core issues the warning "drop HS400 support since no 8-bit bus" when
one of the ESDHC_FLAG_HS400* flags is set on a non 8bit capable host. To
avoid this warning set these flags only on hosts that actually can do
8bit, i.e. have bus-width = <8> set in the device tree.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Reviewed-by: Haibo Chen <haibo.chen@xxxxxxx>
Fixes: 029e2476f9e6 ("mmc: sdhci-esdhc-imx: add HS400_ES support for i.MX8QXP")
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20221013093248.2220802-1-s.hauer@xxxxxxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1660,6 +1660,10 @@ static int sdhci_esdhc_imx_probe(struct
host->mmc_host_ops.execute_tuning = usdhc_execute_tuning;
}
+ err = sdhci_esdhc_imx_probe_dt(pdev, host, imx_data);
+ if (err)
+ goto disable_ahb_clk;
+
if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
sdhci_esdhc_ops.platform_execute_tuning =
esdhc_executing_tuning;
@@ -1667,13 +1671,15 @@ static int sdhci_esdhc_imx_probe(struct
if (imx_data->socdata->flags & ESDHC_FLAG_ERR004536)
host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
- if (imx_data->socdata->flags & ESDHC_FLAG_HS400)
+ if (host->caps & MMC_CAP_8_BIT_DATA &&
+ imx_data->socdata->flags & ESDHC_FLAG_HS400)
host->mmc->caps2 |= MMC_CAP2_HS400;
if (imx_data->socdata->flags & ESDHC_FLAG_BROKEN_AUTO_CMD23)
host->quirks2 |= SDHCI_QUIRK2_ACMD23_BROKEN;
- if (imx_data->socdata->flags & ESDHC_FLAG_HS400_ES) {
+ if (host->caps & MMC_CAP_8_BIT_DATA &&
+ imx_data->socdata->flags & ESDHC_FLAG_HS400_ES) {
host->mmc->caps2 |= MMC_CAP2_HS400_ES;
host->mmc_host_ops.hs400_enhanced_strobe =
esdhc_hs400_enhanced_strobe;
@@ -1695,10 +1701,6 @@ static int sdhci_esdhc_imx_probe(struct
goto disable_ahb_clk;
}
- err = sdhci_esdhc_imx_probe_dt(pdev, host, imx_data);
- if (err)
- goto disable_ahb_clk;
-
sdhci_esdhc_imx_hwinit(host);
err = sdhci_add_host(host);
Patches currently in stable-queue which might be from s.hauer@xxxxxxxxxxxxxx are
queue-6.0/mmc-sdhci-esdhc-imx-propagate-esdhc_flag_hs400-only-on-8bit-bus.patch
