Package: src:linux
Version: 4.3.1-1Severity: important
Dear Maintainer,
The built-in SD card reader of the Intel Braswell NUC5PPYHdoesn't work under
Debian Unstable running the latestLinux 4.3 kernel. The card reader,
however, works withUbuntu 15.10, which runs an older Linux 4.2 kernel.
Below is a comparison between the relevant portions of theDebian Unstable and
Ubuntu 15.10 (Wily Werewolf) kernelconfiguration files. The key difference is
the presenceof the CONFIG_PINCTRL_CHERRYVIEW=m option in the Ubuntukernel
config.
$ grep -i pinctrl /boot/config-4.3.0-1-amd64 #Debian Unstable#
CONFIG_I2C_MUX_PINCTRL is not setCONFIG_PINCTRL=y# CONFIG_DEBUG_PINCTRL is
not set# CONFIG_PINCTRL_AMD is not setCONFIG_PINCTRL_BAYTRAIL=y#
CONFIG_PINCTRL_CHERRYVIEW is not set# CONFIG_PINCTRL_SUNRISEPOINT is not set
$ grep -i pinctrl /boot/config-4.2.0-16-generic #Ubuntu
15.10CONFIG_I2C_MUX_PINCTRL=mCONFIG_PINCTRL=y# CONFIG_DEBUG_PINCTRL is not
setCONFIG_PINCTRL_AMD=yCONFIG_PINCTRL_BAYTRAIL=yCONFIG_PINCTRL_CHERRYVIEW=mCONFIG_PINCTRL_INTEL=mCONFIG_PINCTRL_SUNRISEPOINT=m
A comparison between the dmesg output for Debian Unstableand Ubuntu (15.10)
shows the problem clearly ("failed tosetup card detect gpio").
$ dmesg | grep -i sdhci #Debian Unstable[ 1.288201] sdhci: Secure Digital
Host Controller Interface driver[ 1.288208] sdhci: Copyright(c) Pierre
Ossman[ 1.317111] sdhci-pci 0000:00:12.0: SDHCI controller found
[8086:2296] (rev 21)[ 1.317295] sdhci-pci 0000:00:12.0: failed to setup
card detect gpio[ 1.318814] sdhci-pci 0000:00:12.0: No vmmc regulator
found[ 1.318823] sdhci-pci 0000:00:12.0: No vqmmc regulator found[
1.324453] mmc0: SDHCI controller on PCI [0000:00:12.0] using ADMA
$ dmesg | grep -i sdhci #Ubuntu 15.10[ 11.433662] sdhci: Secure Digital
Host Controller Interface driver[ 11.433666] sdhci: Copyright(c) Pierre
Ossman[ 11.472483] sdhci-pci 0000:00:12.0: SDHCI controller found
[8086:2296] (rev 21)[ 11.473841] sdhci-pci 0000:00:12.0: No vmmc regulator
found[ 11.473845] sdhci-pci 0000:00:12.0: No vqmmc regulator found[
11.477273] mmc0: SDHCI controller on PCI [0000:00:12.0] using ADMA
Under Ubuntu 15.10, the pinctrl_cherryview module is loadedautomatically
during system startup:
$ lsmod | grep -Ei 'sdhci|pinctrl' #Debian Unstablesdhci_pci
24576 0sdhci_acpi 16384 0sdhci 40960 2
sdhci_acpi,sdhci_pci
$ lsmod | grep -Ei 'sdhci|pinctrl' #Ubuntu 15.10sdhci_pci 24576
0sdhci_acpi 16384 0sdhci 45056 2
sdhci_acpi,sdhci_pcipinctrl_cherryview 32768 2
$ lspci #Debian Unstable00:00.0 Host bridge: Intel Corporation Device 2280
(rev 21)00:02.0 VGA compatible controller: Intel Corporation Device 22b1 (rev
21)00:12.0 SD Host controller: Intel Corporation Device 2296 (rev 21)00:13.0
SATA controller: Intel Corporation Device 22a3 (rev 21)00:14.0 USB
controller: Intel Corporation Device 22b5 (rev 21)00:18.0 DMA controller:
Intel Corporation Device 22c0 (rev 21)00:18.6 Serial bus controller [0c80]:
Intel Corporation Device 22c6 (rev 21)00:18.7 Serial bus controller [0c80]:
Intel Corporation Device 22c7 (rev 21)00:1a.0 Encryption controller: Intel
Corporation Device 2298 (rev 21)00:1b.0 Audio device: Intel Corporation
Device 2284 (rev 21)00:1c.0 PCI bridge: Intel Corporation Device 22c8 (rev
21)00:1c.1 PCI bridge: Intel Corporation Device 22ca (rev 21)00:1c.2 PCI
bridge: Intel Corporation Device 22cc (rev 21)00:1f.0 ISA bridge: Intel
Corporation Device 229c (rev 21)00:1f.3 SMBus: Intel Corporation Device 2292
(rev 21)02:00.0 Network controller: Intel Corporation Wireless 3165 (rev
81)03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
-- System Information:Debian Release: stretch/sid APT prefers testing APT
policy: (900, 'testing'), (90, 'unstable')Architecture: amd64 (x86_64)Foreign
Architectures: i386
Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)Shell: /bin/sh linked to
/bin/dashInit: sysvinit (via /sbin/init)
Versions of packages linux-image-4.3.0-1-amd64 depends on:ii debconf
[debconf-2.0] 1.5.58ii initramfs-tools
[linux-initramfs-tool] 0.120ii kmod
21-1ii linux-base 4.0
Versions of packages linux-image-4.3.0-1-amd64 recommends:ii
firmware-linux-free 3.4
Versions of packages linux-image-4.3.0-1-amd64 is related to:ii
firmware-iwlwifi 20151207-1ii firmware-linux
20151207-1ii firmware-linux-nonfree
20151207-1ii firmware-misc-nonfree [firmware-ralink] 20151207-1ii
firmware-realtek 20151207-1
-- debconf information:
linux-image-4.3.0-1-amd64/postinst/depmod-error-initrd-4.3.0-1-amd64: false
linux-image-4.3.0-1-amd64/prerm/removing-running-kernel-4.3.0-1-amd64: true
linux-image-4.3.0-1-amd64/postinst/mips-initrd-4.3.0-1-amd64:
