From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Haibo Chen <haibo.chen@nxp.com>,
Dong Aisheng <aisheng.dong@nxp.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>
Subject: [PATCH 3.18 11/47] mmc: sdhci-esdhc-imx: increase the pad I/O drive strength for DDR50 card
Date: Fri, 28 Apr 2017 10:32:24 +0200 [thread overview]
Message-ID: <20170428083038.843212949@linuxfoundation.org> (raw)
In-Reply-To: <20170428083038.327543269@linuxfoundation.org>
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Haibo Chen <haibo.chen@nxp.com>
commit 9f327845358d3dd0d8a5a7a5436b0aa5c432e757 upstream.
Currently for DDR50 card, it need tuning in default. We meet tuning fail
issue for DDR50 card and some data CRC error when DDR50 sd card works.
This is because the default pad I/O drive strength can't make sure DDR50
card work stable. So increase the pad I/O drive strength for DDR50 card,
and use pins_100mhz.
This fixes DDR50 card support for IMX since DDR50 tuning was enabled from
commit 9faac7b95ea4 ("mmc: sdhci: enable tuning for DDR50")
Tested-and-reported-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -824,6 +824,7 @@ static int esdhc_change_pinstate(struct
switch (uhs) {
case MMC_TIMING_UHS_SDR50:
+ case MMC_TIMING_UHS_DDR50:
pinctrl = imx_data->pins_100mhz;
break;
case MMC_TIMING_UHS_SDR104:
next prev parent reply other threads:[~2017-04-28 8:46 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 8:32 [PATCH 3.18 00/47] 3.18.51-stable review Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 01/47] KEYS: Disallow keyrings beginning with . to be joined as session keyrings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 02/47] KEYS: Change the name of the dead type to ".dead" to prevent user access Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 03/47] KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 04/47] tracing: Allocate the snapshot buffer before enabling probe Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 05/47] ring-buffer: Have ring_buffer_iter_empty() return true when empty Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 06/47] cifs: Do not send echoes before Negotiate is complete Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 07/47] CIFS: remove bad_network_name flag Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 08/47] s390/mm: fix CMMA vs KSM vs others Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 09/47] Input: elantech - add Fujitsu Lifebook E547 to force crc_enabled Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 10/47] ACPI / power: Avoid maybe-uninitialized warning Greg Kroah-Hartman
2017-04-28 8:32 ` Greg Kroah-Hartman [this message]
2017-04-28 8:32 ` [PATCH 3.18 12/47] ubi/upd: Always flush after prepared for an update Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 13/47] powerpc/kprobe: Fix oops when kprobed on stdu instruction Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 14/47] x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 15/47] kvm: arm/arm64: Fix locking for kvm_free_stage2_pgd Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 16/47] arm64: avoid returning from bad_mode Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 17/47] clk: at91: usb: fix determine_rate prototype again Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 18/47] gadgetfs: fix uninitialized variable in error handling Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 19/47] dm bufio: hide bogus warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 20/47] MIPS: Fix the build on jz4740 after removing the custom gpio.h Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 21/47] perf: Avoid horrible stack usage Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 22/47] fs/nfs: fix new compiler warning about boolean in switch Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 23/47] iommu/vt-d: Remove unused variable Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 24/47] mm/init: fix zone boundary creation Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 25/47] net: ti: cpmac: Fix compiler warning due to type confusion Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 26/47] MIPS: asm: compiler: Add new macros to set ISA and arch asm annotations Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 27/47] nfsd: work around a gcc-5.1 warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 29/47] brcmfmac: avoid " Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 30/47] tty: nozomi: avoid a harmless gcc warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 31/47] net: vxge: avoid unused function warnings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 33/47] hostap: avoid uninitialized variable use in hfa384x_get_rid Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 34/47] MIPS: MSP71xx: remove odd locking in PCI config space access code Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 35/47] net: tulip: turn compile-time warning into dev_warn() Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 37/47] gfs2: avoid uninitialized variable warning Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 39/47] ARM: 8296/1: cache-l2x0: clean up aurora cache handling Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 40/47] aic94xx: Skip reading user settings if flash is not found Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 41/47] MIPS: ralink: Cosmetic change to prom_init() Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 42/47] kconfig: tinyconfig: provide whole choice blocks to avoid warnings Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 43/47] ARM: 8383/1: nommu: avoid deprecated source register on mov Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 44/47] [media] xc2028: avoid use after free Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 45/47] vfio/pci: Fix integer overflows, bitmask check Greg Kroah-Hartman
2017-04-28 8:32 ` [PATCH 3.18 46/47] staging/android/ion : fix a race condition in the ion driver Greg Kroah-Hartman
2017-04-28 8:33 ` [PATCH 3.18 47/47] ping: implement proper locking Greg Kroah-Hartman
2017-04-28 18:12 ` [PATCH 3.18 00/47] 3.18.51-stable review Guenter Roeck
2017-04-28 19:19 ` Shuah Khan
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