Hi Andreas, On Thu, Jul 3, 2014 at 10:49 AM, Andreas Färber <afaerber@xxxxxxx> wrote: > Hi Ajay, > > Thanks a lot for your work on this. > > Am 11.06.2014 20:26, schrieb Ajay Kumar: >> This series is based on exynos-drm-next branch of Inki Dae's tree at: >> git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git >> >> I have tested this after adding few DT changes for exynos5250-snow, >> exynos5420-peach-pit and exynos5800-peach-pi boards. > > Unfortunately this series per se does not yet fix my display issues on > the Spring Chromebook. Can you share what dt changes you made for Snow? > > Before, if the dp-controller dt node was present, I would get a dark > screen immediately and I could ssh into the system shortly after. > I worked around that by commenting the node out, which would allow me to > graphically boot pretty much instantly. > > With these 10 patches applied on top of my dt on top of kgene's tree, > the last U-Boot screen stays visible for ~50 seconds, then the screen > goes blank, and I can ssh in some time later. > If I comment out the dp-controller node again, it takes long for the > kernel boot to graphically proceed but works okay then. > In both cases there's a gap of ~2900 seconds visible in dmesg. > > Is presence of a framebuffer dt node or U-Boot not disabling FIMD > interfering here, i.e. do I need to replace nv U-Boot? Or do I need to > cherry-pick any preparatory patches from exynos-drm-next? > > I'm building with LPAE, but the only two warnings in drm code I see are > about a NULL cast to dma_addr_t and a %x in debug code, which I consider > non-critical (but would be nice if Inki could silence them). > > Regards, > Andreas > > https://github.com/afaerber/linux/commits/spring-next > https://github.com/afaerber/u-boot/commits/spring You need to add bridge chip node and panel node to use my patch series. Also, to support that you need to enable tps65090 regulator on spring. I have attached a patch which adds the bridge chip node and panel node. Also, I have attached a sample config which I used to compile the kernel. Doug can help you in adding changes required for tps65090. Regards, Ajay Kumar > w/ dp-controller: > > [ 0.000000] Booting Linux on physical CPU 0x0 > [ 0.000000] Linux version 3.16.0-rc2+ (andreas@xxxxxxxxxxxxx) (gcc > version 4. > 8.2 20140404 [gcc-4_8-branch revision 209122] (SUSE Linux) ) #8 SMP > PREEMPT Thu > Jul 3 05:56:13 CEST 2014 > [ 0.000000] CPU: ARMv7 Processor [410fc0f4] revision 4 (ARMv7), > cr=30c5387d > [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction > cache > [ 0.000000] Machine model: Google Spring > [ 0.000000] Forcing write-allocate cache policy for SMP > [ 0.000000] Memory policy: Data cache writealloc > [ 0.000000] On node 0 totalpages: 523264 > [ 0.000000] free_area_init_node: node 0, pgdat c0659dc0, node_mem_map > ee7fc00 > 0 > [ 0.000000] Normal zone: 1520 pages used for memmap > [ 0.000000] Normal zone: 0 pages reserved > [ 0.000000] Normal zone: 194560 pages, LIFO batch:31 > [ 0.000000] HighMem zone: 2568 pages used for memmap > [ 0.000000] HighMem zone: 328704 pages, LIFO batch:31 > [ 0.000000] PERCPU: Embedded 7 pages/cpu @ee7bb000 s7104 r8192 d13376 > u32768 > [ 0.000000] pcpu-alloc: s7104 r8192 d13376 u32768 alloc=8*4096 > [ 0.000000] pcpu-alloc: [0] 0 [0] 1 > [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. > Total pag > es: 521744 > [ 0.000000] Kernel command line: console=tty1 root=/dev/sda3 > rootfstype=ext4 > rw rootwait clk_ignore_unused > [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) > [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 > bytes) > [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 > bytes) > [ 0.000000] Memory: 2068780K/2093056K available (4454K kernel code, > 258K rwdata, 1480K rodata, 278K init, 281K bss, 24276K reserved, > 1314816K highmem) > [ 0.000000] Virtual kernel memory layout: > vector : 0xffff0000 - 0xffff1000 ( 4 kB) > fixmap : 0xffc00000 - 0xffe00000 (2048 kB) > vmalloc : 0xf0000000 - 0xff000000 ( 240 MB) > lowmem : 0xc0000000 - 0xef800000 ( 760 MB) > pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) > modules : 0xbf000000 - 0xbfe00000 ( 14 MB) > .text : 0xc0008000 - 0xc05d3dd4 (5936 kB) > .init : 0xc05d4000 - 0xc0619bc0 ( 279 kB) > .data : 0xc061a000 - 0xc065a9e0 ( 259 kB) > .bss : 0xc065a9ec - 0xc06a1080 ( 282 kB) > [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 > [ 0.000000] Preemptible hierarchical RCU implementation. > [ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. > [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 > [ 0.000000] NR_IRQS:16 nr_irqs:16 16 > [ 0.000000] L2C: failed to init: -19 > [ 0.000000] Exynos5250: clock setup completed, armclk=1700000000 > [ 0.000000] Architected cp15 timer(s) running at 24.00MHz (virt). > [ 0.000002] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps > every 2863311519744ns > [ 0.000007] Switching to timer-based delay loop > [ 2869.295699] sched_clock: 64 bits at 24MHz, resolution 41ns, wraps > every 2863311519744ns > [ 2869.295841] Console: colour dummy device 80x30 > [ 2869.296042] console [tty1] enabled > [ 2869.296056] Calibrating delay loop (skipped), value calculated using > timer frequency.. 48.00 BogoMIPS (lpj=120000) > [ 2869.296073] pid_max: default: 32768 minimum: 301 > [ 2869.296160] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) > [ 2869.296171] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 > bytes) > [ 2869.296520] CPU: Testing write buffer coherency: ok > [ 2869.296649] CPU0: update cpu_capacity 1024 > [ 2869.296660] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 > [ 2869.296757] Setting up static identity map for 0x4043c0d8 - 0x4043c130 > [ 2920.607940] CPU1: Booted secondary processor > [ 2920.607972] CPU1: update cpu_capacity 1024 > [ 2920.607976] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 > [ 2920.608020] Brought up 2 CPUs > [...] > > w/o dp-controller: > > [ 0.000000] Booting Linux on physical CPU 0x0 > [ 0.000000] Linux version 3.16.0-rc2+ (andreas@xxxxxxxxxxxxx) (gcc > version 4.8.2 20140404 [gcc-4_8-branch revision 209122] (SUSE Linux) ) > #8 SMP PREEMPT Thu Jul 3 05:56:13 CEST 2014 > [ 0.000000] CPU: ARMv7 Processor [410fc0f4] revision 4 (ARMv7), > cr=30c5387d > [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction > cache > [ 0.000000] Machine model: Google Spring > [ 0.000000] Forcing write-allocate cache policy for SMP > [ 0.000000] Memory policy: Data cache writealloc > [ 0.000000] On node 0 totalpages: 523264 > [ 0.000000] free_area_init_node: node 0, pgdat c0659dc0, node_mem_map > ee7fc000 > [ 0.000000] Normal zone: 1520 pages used for memmap > [ 0.000000] Normal zone: 0 pages reserved > [ 0.000000] Normal zone: 194560 pages, LIFO batch:31 > [ 0.000000] HighMem zone: 2568 pages used for memmap > [ 0.000000] HighMem zone: 328704 pages, LIFO batch:31 > [ 0.000000] PERCPU: Embedded 7 pages/cpu @ee7bc000 s7104 r8192 d13376 > u32768 > [ 0.000000] pcpu-alloc: s7104 r8192 d13376 u32768 alloc=8*4096 > [ 0.000000] pcpu-alloc: [0] 0 [0] 1 > [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. > Total pages: 521744 > [ 0.000000] Kernel command line: console=tty1 root=/dev/sda3 > rootfstype=ext4 rw rootwait clk_ignore_unused > [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) > [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 > bytes) > [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 > bytes) > [ 0.000000] Memory: 2068784K/2093056K available (4454K kernel code, > 258K rwdata, 1480K rodata, 278K init, 281K bss, 24272K reserved, > 1314816K highmem) > [ 0.000000] Virtual kernel memory layout: > vector : 0xffff0000 - 0xffff1000 ( 4 kB) > fixmap : 0xffc00000 - 0xffe00000 (2048 kB) > vmalloc : 0xf0000000 - 0xff000000 ( 240 MB) > lowmem : 0xc0000000 - 0xef800000 ( 760 MB) > pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) > modules : 0xbf000000 - 0xbfe00000 ( 14 MB) > .text : 0xc0008000 - 0xc05d3dd4 (5936 kB) > .init : 0xc05d4000 - 0xc0619bc0 ( 279 kB) > .data : 0xc061a000 - 0xc065a9e0 ( 259 kB) > .bss : 0xc065a9ec - 0xc06a1080 ( 282 kB) > [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 > [ 0.000000] Preemptible hierarchical RCU implementation. > [ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. > [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 > [ 0.000000] NR_IRQS:16 nr_irqs:16 16 > [ 0.000000] L2C: failed to init: -19 > [ 0.000000] Exynos5250: clock setup completed, armclk=1700000000 > [ 0.000000] Architected cp15 timer(s) running at 24.00MHz (virt). > [ 0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps > every 2863311519744ns > [ 0.000007] Switching to timer-based delay loop > [ 2870.975122] sched_clock: 64 bits at 24MHz, resolution 41ns, wraps > every 2863311519744ns > [ 2870.975267] Console: colour dummy device 80x30 > [ 2870.975468] console [tty1] enabled > [ 2870.975482] Calibrating delay loop (skipped), value calculated using > timer frequency.. 48.00 BogoMIPS (lpj=120000) > [ 2870.975499] pid_max: default: 32768 minimum: 301 > [ 2870.975587] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) > [ 2870.975598] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 > bytes) > [ 2870.975950] CPU: Testing write buffer coherency: ok > [ 2870.976081] CPU0: update cpu_capacity 1024 > [ 2870.976092] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 > [ 2870.976188] Setting up static identity map for 0x4043c0d8 - 0x4043c130 > [ 2920.607946] CPU1: Booted secondary processor > [ 2920.607979] CPU1: update cpu_capacity 1024 > [ 2920.607983] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 > [ 2920.608027] Brought up 2 CPUs > [...] > > -- > SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany > GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
Attachment:
0001-ARM-dts-Add-ps8622-and-panel-node-for-spring.patch
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Attachment:
config-3.16.0-rc2+
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