- 11 Oct, 2013 40 commits
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Sascha Hauer authored
Currently we wait for a channel until it's idle before actually disabling it. This is not needed for all channels though, so make waiting for idle a separate function and call it where necessary. Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Philipp Zabel authored
Signed-off-by:
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Philipp Zabel authored
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Philipp Zabel authored
The drm fourccs define formats not available as video4linux pixel formats, such as DRM_FORMAT_BGR565, or the DRM_FORMAT_RGBX/BGRX variants. Also, contrary to the v4l2 formats, the drm formats are well defined. This patch also fixes the BGRA32 and RGB/RGB24 internal formats to use a common internal representation. Signed-off-by:
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Philipp Zabel authored
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Philipp Zabel authored
Connecting a 320x240 parallel display on i.MX6 resulted in an invalid DRDY signal because the DC would not receive NL/EOL events on every line. Reducing the allocated DMFC space from 4 slots (256 * 128-bit) to 2 slots (128 * 128-bit) solved the problem. Signed-off-by:
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Fabio Estevam authored
Booting a mx6 with CONFIG_PROVE_LOCKING we get: ====================================================== [ INFO: possible circular locking dependency detected ] 3.12.0-rc4-next-20131009+ #34 Not tainted ------------------------------------------------------- swapper/0/1 is trying to acquire lock: (&imx_drm_device->mutex){+.+.+.}, at: [<804575a8>] imx_drm_encoder_get_mux_id+0x28/0x98 but task is already holding lock: (&crtc->mutex){+.+...}, at: [<802fe778>] drm_modeset_lock_all+0x40/0x54 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&crtc->mutex){+.+...}: [<800777d0>] __lock_acquire+0x18d4/0x1c24 [<80077fec>] lock_acquire+0x68/0x7c [<805ead5c>] _mutex_lock_nest_lock+0x58/0x3a8 [<802fec50>] drm_crtc_init+0x48/0xa8 [<80457c88>] imx_drm_add_crtc+0xd4/0x144 [<8045e2e8>] ipu_drm_probe+0x114/0x1fc [<80312278>] platform_drv_probe+0x20/0x50 [<80310c68>] driver_probe_device+0x110/0x22c [<80310e20>] __driver_attach+0x9c/0xa0 [<8030f218>] bus_for_each_dev+0x5c/0x90 [<80310750>] driver_attach+0x20/0x28 [<8031034c>] bus_add_driver+0xdc/0x1dc [<803114d8>] driver_register+0x80/0xfc [<80312198>] __platform_driver_register+0x50/0x64 [<808172fc>] ipu_drm_driver_init+0x18/0x20 [<800088c0>] do_one_initcall+0xfc/0x160 [<807e7c5c>] kernel_init_freeable+0x104/0x1d4 [<805e2930>] kernel_init+0x10/0xec [<8000ea68>] ret_from_fork+0x14/0x2c -> #1 (&dev->mode_config.mutex){+.+.+.}: [<800777d0>] __lock_acquire+0x18d4/0x1c24 [<80077fec>] lock_acquire+0x68/0x7c [<805eb100>] mutex_lock_nested+0x54/0x3a4 [<802fe758>] drm_modeset_lock_all+0x20/0x54 [<802fead4>] drm_encoder_init+0x20/0x7c [<80457ae4>] imx_drm_add_encoder+0x88/0xec [<80459838>] imx_ldb_probe+0x344/0x4fc [<80312278>] platform_drv_probe+0x20/0x50 [<80310c68>] driver_probe_device+0x110/0x22c [<80310e20>] __driver_attach+0x9c/0xa0 [<8030f218>] bus_for_each_dev+0x5c/0x90 [<80310750>] driver_attach+0x20/0x28 [<8031034c>] bus_add_driver+0xdc/0x1dc [<803114d8>] driver_register+0x80/0xfc [<80312198>] __platform_driver_register+0x50/0x64 [<8081722c>] imx_ldb_driver_init+0x18/0x20 [<800088c0>] do_one_initcall+0xfc/0x160 [<807e7c5c>] kernel_init_freeable+0x104/0x1d4 [<805e2930>] kernel_init+0x10/0xec [<8000ea68>] ret_from_fork+0x14/0x2c -> #0 (&imx_drm_device->mutex){+.+.+.}: [<805e510c>] print_circular_bug+0x74/0x2e0 [<80077ad0>] __lock_acquire+0x1bd4/0x1c24 [<80077fec>] lock_acquire+0x68/0x7c [<805eb100>] mutex_lock_nested+0x54/0x3a4 [<804575a8>] imx_drm_encoder_get_mux_id+0x28/0x98 [<80459a98>] imx_ldb_encoder_prepare+0x34/0x114 [<802ef724>] drm_crtc_helper_set_mode+0x1f0/0x4c0 [<802f0344>] drm_crtc_helper_set_config+0x828/0x99c [<802ff270>] drm_mode_set_config_internal+0x5c/0xdc [<802eebe0>] drm_fb_helper_set_par+0x50/0xb4 [<802af580>] fbcon_init+0x490/0x500 [<802dd104>] visual_init+0xa8/0xf8 [<802df414>] do_bind_con_driver+0x140/0x37c [<802df764>] do_take_over_console+0x114/0x1c4 [<802af65c>] do_fbcon_takeover+0x6c/0xd4 [<802b2b30>] fbcon_event_notify+0x7c8/0x818 [<80049954>] notifier_call_chain+0x4c/0x8c [<80049cd8>] __blocking_notifier_call_chain+0x50/0x68 [<80049d10>] blocking_notifier_call_chain+0x20/0x28 [<802a75f0>] fb_notifier_call_chain+0x1c/0x24 [<802a9224>] register_framebuffer+0x188/0x268 [<802ee994>] drm_fb_helper_initial_config+0x2bc/0x4b8 [<802f118c>] drm_fbdev_cma_init+0x7c/0xec [<80817288>] imx_fb_helper_init+0x54/0x90 [<800088c0>] do_one_initcall+0xfc/0x160 [<807e7c5c>] kernel_init_freeable+0x104/0x1d4 [<805e2930>] kernel_init+0x10/0xec [<8000ea68>] ret_from_fork+0x14/0x2c other info that might help us debug this: Chain exists of: &imx_drm_device->mutex --> &dev->mode_config.mutex --> &crtc->mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&crtc->mutex); lock(&dev->mode_config.mutex); lock(&crtc->mutex); lock(&imx_drm_device->mutex); *** DEADLOCK *** 6 locks held by swapper/0/1: #0: (registration_lock){+.+.+.}, at: [<802a90bc>] register_framebuffer+0x20/0x268 #1: (&fb_info->lock){+.+.+.}, at: [<802a7a90>] lock_fb_info+0x20/0x44 #2: (console_lock){+.+.+.}, at: [<802a9218>] register_framebuffer+0x17c/0x268 #3: ((fb_notifier_list).rwsem){.+.+.+}, at: [<80049cbc>] __blocking_notifier_call_chain+0x34/0x68 #4: (&dev->mode_config.mutex){+.+.+.}, at: [<802fe758>] drm_modeset_lock_all+0x20/0x54 #5: (&crtc->mutex){+.+...}, at: [<802fe778>] drm_modeset_lock_all+0x40/0x54 In order to avoid this lockdep warning, remove the locking from imx_drm_encoder_get_mux_id() and imx_drm_crtc_panel_format_pins(). Tested on a mx6sabrelite and mx53qsb. Reported-by:Russell King <rmk+kernel@arm.linux.org.uk> Tested-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
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Malcolm Priestley authored
There is no need remove and add the control urb in device open/close. Move to the probe and disconnect. This make the USB control in/out functions always available to driver. Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by:
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Sachin Kamat authored
module_spi_driver removes the boilerplate code and simplifies it. Signed-off-by:
Sachin Kamat <sachin.kamat@linaro.org> Cc: Henry Pan <hspan@micron.com> Signed-off-by:
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Sachin Kamat authored
module_platform_driver simplifies the code by removing the boilerplate. Signed-off-by:
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Alexey Khoroshilov authored
init_usb() may fail after some of mux_rxes already allocated. So we need to release them on the failure path. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by:
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Alexey Khoroshilov authored
As far as alloc_mux_rx() is called from probe() only there is no need in GFP_ATOMIC here. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
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Majunath Goudar authored
This patch adds a MMU dependency to configure the ZSMALLOC in drivers/staging/zsmalloc/Kconfig. Without this patch, build system can lead to build failure. This was observed during randconfig testing, in which ZSMALLOC was enabled w/o MMU being enabled. Following was the error: LD vmlinux drivers/built-in.o: In function `__zs_map_object': drivers/staging/zsmalloc/zsmalloc-main.c:650: undefined reference to `map_vm_area' make: *** [vmlinux] Error 1 Signed-off-by:
Manjunath Goudar <csmanjuvijay@gmail.com> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Seth Jennings <sjenning@linux.vnet.ibm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: devel@driverdev.osuosl.org Cc: linux-kernel@vger.kernel.org Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with line over 80 characters in sm7xxfb.c Signed-off-by:
Ebru Akagunduz <ebru.akagunduz@gmail.com> Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with line over 80 characters in ethernet-tx.c Signed-off-by:
Josh Triplett <josh@joshtriplett.org> Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with quoted string split across lines in ethernet-tx.c Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with quoted string split across lines in ethernet-spi.c Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with suspect code indent for conditional statements in r8185b_init.c Signed-off-by:
Zach Brown <zab@redhat.com> Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with avoid unnecessary line continuations in r8185b_init.c Signed-off-by:
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Valentina Manea authored
This fixes the following sparse warnings: * drivers/staging/rtl8188eu/core/rtw_cmd.c:221:5: warning: symbol 'rtw_cmd_filter' was not declared. Should it be static? * drivers/staging/rtl8188eu/core/rtw_cmd.c:1670:6: warning: symbol 'dynamic_chk_wk_hdl' was not declared. Should it be static? Signed-off-by:
Valentina Manea <valentina.manea.m@gmail.com> Signed-off-by:
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Dulshani Gunawardhana authored
Fix checkpatch.pl warning on quoted string on multiple lines in go7007-usb.c Signed-off-by:
Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com> Signed-off-by:
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Dulshani Gunawardhana authored
Fix "line over 80 characters" warning generated by checkpatch.pl for go7007-usb.c Signed-off-by:
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Dulshani Gunawardhana authored
Replace KERN_INFO with pr_info in go7007-usb.c Signed-off-by:
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Dulshani Gunawardhana authored
Replace KERN_ERR with pr_err in go7007-usb.c Signed-off-by:
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Dulshani Gunawardhana authored
Remove driver-specific debugging defines in favor of pr_debug in go7007-usb.c Signed-off-by:
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Ebru Akagunduz authored
fix checkpatch.pl issues with return is not a function, parentheses are not required in lo.c Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with space prohibited between function name and open parenthesis '(' in lo.c Signed-off-by: -
Ebru Akagunduz authored
Fix checkpatch.pl issues with space prohibited between function name and open parenthesis '(' in module.c Signed-off-by: -
Ebru Akagunduz authored
Fix checkpatch.pl issues with do not initialise statics to 0 or NULL in module.c Signed-off-by:
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Archana kumari authored
Fix checkpatch.pl issues with quoted string split across lines in lirc_imon.c Signed-off-by:
Archana kumari <archanakumari959@gmail.com> Signed-off-by:
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Teodora Baluta authored
Fix sparse warnings for static functions * drivers/staging/wlan-ng/cfg80211.c:101:5: warning: symbol 'prism2_change_virtual_intf' was not declared. Signed-off-by:
Teodora Baluta <teobaluta@gmail.com> Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with prefer netdev_dbg(netdev, .. then dev_dbg(dev, .. then pr_debug(.. to printk(KERN_DEBUG in p80211wep.c Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues with sizeof *ring should be sizeof(*ring) in sca3000_ring.c Signed-off-by:
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Rashika Kheria authored
This patch fixes the following checkpatch.pl warning in btmtk_usb.c: WARNING: line over 80 characters in the file by using kernel built_in min_t macro. Signed-off-by:
Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by:
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Rashika Kheria authored
The patch fixes the following checkpatch.pl warning in btmtk_usb.c WARNING: suspect code indent for conditional statements Signed-off-by:
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Rashika Kheria authored
The patch fixes the following checkpatch.pl warning in btmtk_usb.c WARNING: unnecessary whitespace before a quoted newline Signed-off-by:
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Rashika Kheria authored
The patch fixes the following checkpatch.pl warning in btmtk_usb.c WARNING: braces {} are not necessary for single statement blocks Signed-off-by: -
Rashika Kheria authored
This patch fixes the following checkpatch.pl warning in btmtk_usb.c WARNING: line over 80 characters in the file Signed-off-by:
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Archana kumari authored
Fixes whitepace around commas. Detected via checkpatch.pl. ERROR: space required after that ',' Signed-off-by:
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Ebru Akagunduz authored
Fix checkpatch.pl issues wtih line over 80 characters in gdm_tty.c Signed-off-by:
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