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89328b1b81
linux-next/drivers/i2c/busses
History
Jonathan Hunter 89328b1b81 i2c: tegra: Only display error messages if DMA setup fails 
Commit 86c92b9965 ("i2c: tegra: Add DMA support") added DMA support
to the Tegra I2C driver for Tegra devices that support the APB DMA
controller. One side-effect of this change is that even for Tegra
devices that do not have an APB DMA controller and hence, cannot
support DMA tranfers for I2C transactions, the following error messages
are still displayed ...

 ERR KERN tegra-i2c 31c0000.i2c: cannot use DMA: -19
 ERR KERN tegra-i2c 31c0000.i2c: falling back to PIO

There is no point displaying the above messages for devices that do not
have an APB DMA controller and so fix this by returning from the
tegra_i2c_init_dma() function if 'has_apb_dma' is not true.

Furthermore, if CONFIG_TEGRA20_APB_DMA is not set, then rather than
printing an error message, print an debug message as for whatever reason
this could be intentional.

Fixes: 86c92b9965 ("i2c: tegra: Add DMA support")
Signed-off-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-23 11:08:44 +01:00
..
i2c-acorn.c i2c: acorn: remove outdated path from file header 2018-01-18 00:08:20 +01:00
i2c-ali15x3.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-ali1535.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-ali1563.c i2c: ali1563: fix checkpatch.pl issues 2014-05-22 10:09:21 +02:00
i2c-altera.c i2c: altera: Add Altera I2C Controller driver 2017-09-13 23:37:16 +02:00
i2c-amd756-s4882.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i2c-amd756.c i2c: don't print error when adding adapter fails 2016-08-22 08:19:55 +02:00
i2c-amd8111.c i2c: amd8111: Mark expected switch fall-through 2018-08-08 22:28:46 +02:00
i2c-aspeed.c i2c: aspeed: Add multi-master use case support 2019-02-15 09:52:03 +01:00
i2c-at91.c i2c: at91: Read all available bytes at once 2018-04-30 10:39:28 +02:00
i2c-au1550.c i2c: au1550: Convert to devm_kzalloc and devm_ioremap_resource 2015-10-23 23:31:11 +02:00
i2c-axxia.c i2c: axxia: support sequence command mode 2018-12-17 23:28:50 +01:00
i2c-bcm2835.c i2c: bcm2835: Switch to SPDX identifier 2018-11-27 12:50:07 +01:00
i2c-bcm-iproc.c i2c: use dev_get_drvdata() to get private data in suspend/resume hooks 2017-07-31 17:03:32 +02:00
i2c-bcm-kona.c Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-10-07 14:12:21 -07:00
i2c-brcmstb.c i2c: brcmstb: use core helper to mark adapter suspended 2019-01-08 21:02:49 +01:00
i2c-cadence.c i2c: use dev_get_drvdata() to get private data in suspend/resume hooks 2017-07-31 17:03:32 +02:00
i2c-cbus-gpio.c i2c: cbus-gpio: Switch to use GPIO descriptors 2019-02-08 22:18:51 +01:00
i2c-cht-wc.c i2c-cht-wc: Fix bq24190 supplier 2018-07-02 17:38:07 +02:00
i2c-cpm.c i2c: busses: make i2c_adapter_quirks const 2017-08-29 22:32:47 +02:00
i2c-cros-ec-tunnel.c i2c: i2c-cros-ec-tunnel: Switch to SPDX identifier. 2018-12-17 23:08:41 +01:00
i2c-davinci.c Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-08-21 17:40:46 -07:00
i2c-designware-baytrail.c More ACPI updates for 4.20-rc1 2018-10-30 09:15:31 -07:00
i2c-designware-common.c More ACPI updates for 4.20-rc1 2018-10-30 09:15:31 -07:00
i2c-designware-core.h More ACPI updates for 4.20-rc1 2018-10-30 09:15:31 -07:00
i2c-designware-master.c This is the 4.19-rc7 release 2018-10-11 23:07:30 +02:00
i2c-designware-pcidrv.c i2c: designware: Add SPDX license tag 2018-08-20 10:45:45 +02:00
i2c-designware-platdrv.c More ACPI updates for 4.20-rc1 2018-10-30 09:15:31 -07:00
i2c-designware-slave.c i2c: designware: Add SPDX license tag 2018-08-20 10:45:45 +02:00
i2c-digicolor.c i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare 2016-11-18 01:48:01 +01:00
i2c-diolan-u2c.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-dln2.c i2c: constify i2c_adapter_quirks structures 2016-11-18 02:05:03 +01:00
i2c-efm32.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-eg20t.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-elektor.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-emev2.c i2c: use SPDX identifier for Renesas drivers 2018-08-24 14:49:36 +02:00
i2c-exynos5.c i2c: exynos5: use core helper to mark adapter suspended 2019-01-08 21:02:51 +01:00
i2c-fsi.c i2c: fsi: Add bus recovery 2018-07-21 00:07:09 +02:00
i2c-gpio.c i2c: gpio: fault-injector: add 'inject_panic' injector 2019-02-23 10:34:08 +01:00
i2c-highlander.c i2c: use SPDX identifier for Renesas drivers 2018-08-24 14:49:36 +02:00
i2c-hix5hd2.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-hydra.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-i801.c i2c: i801: fix DNV's SMBCTRL register offset 2018-09-04 18:04:55 +02:00
i2c-ibm_iic.c i2c: Remove caller signal_pending branch predictions 2018-11-27 12:59:16 +01:00
i2c-ibm_iic.h
i2c-img-scb.c i2c: img-scb: Add runtime PM 2017-10-28 14:03:45 +02:00
i2c-imx-lpi2c.c i2c: imx-lpi2c: Remove mx8dv compatible entry 2018-09-02 23:50:43 +02:00
i2c-imx.c i2c: imx: Fix inconsistent IS_ERR and PTR_ERR in i2c_imx_dma_request() 2019-01-22 23:53:03 +01:00
i2c-iop3xx.c i2c: iop3xx: Add device tree probing 2019-02-05 13:46:36 +01:00
i2c-iop3xx.h i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-isch.c i2c: i2c-isch: fix spelling mistake "unitialized" -> "uninitialized" 2018-09-25 00:14:04 +02:00
i2c-ismt.c i2c: ismt: Add support for Intel Cedar Fork 2019-01-03 20:02:32 +01:00
i2c-jz4780.c i2c: jz4780: Fix module autoload 2016-10-25 11:48:58 +02:00
i2c-kempld.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-lpc2k.c i2c: use dev_get_drvdata() to get private data in suspend/resume hooks 2017-07-31 17:03:32 +02:00
i2c-meson.c i2c: meson: update doc description to fix build warnings 2018-01-26 18:33:44 +01:00
i2c-mlxcpld.c i2c: mlxcpld: Allow configurable adapter id for mlxcpld 2018-04-30 10:39:29 +02:00
i2c-mpc.c i2c: mpc: always determine I2C clock prescaler at runtime 2018-01-15 19:19:55 +01:00
i2c-mt65xx.c i2c: mediatek: remove completion_done() 2019-02-05 14:11:46 +01:00
i2c-mv64xxx.c i2c: mv64xxx: Apply errata delay only in standard mode 2018-03-17 21:20:04 +01:00
i2c-mxs.c i2c: mxs: use core to detect 'no zero length' quirk 2018-08-04 23:25:06 +02:00
i2c-nforce2-s4985.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i2c-nforce2.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i2c-nomadik.c i2c: busses: remove superfluous ignoring of children for RPM 2018-05-08 23:19:02 +02:00
i2c-nvidia-gpu.c i2c: nvidia-gpu: mark resume function as __maybe_unused 2018-12-11 21:39:43 +01:00
i2c-ocores.c i2c: ocores: Add support for bus clock via platform data 2019-02-14 17:58:23 +01:00
i2c-octeon-core.c i2c: octeon: Prevent error message on bus error 2018-03-02 11:11:15 +01:00
i2c-octeon-core.h i2c: octeon: Prevent error message on bus error 2018-03-02 11:11:15 +01:00
i2c-octeon-platdrv.c i2c: busses: make i2c_adapter const 2017-08-29 22:26:08 +02:00
i2c-omap.c i2c: omap: Use noirq system sleep pm ops to idle device for suspend 2019-02-05 13:13:20 +01:00
i2c-opal.c i2c: opal: don't check number of messages in the driver 2018-05-24 22:06:17 +02:00
i2c-owl.c i2c: Add Actions Semiconductor Owl family S700 I2C support 2019-01-03 20:36:18 +01:00
i2c-parport-light.c i2c: i2c-smbus: Use threaded irq for smbalert 2017-10-28 23:42:26 +02:00
i2c-parport.c i2c: i2c-smbus: Use threaded irq for smbalert 2017-10-28 23:42:26 +02:00
i2c-parport.h i2c: parport: Add VCT-jig adapter 2015-08-10 08:37:34 +02:00
i2c-pasemi.c i2c: pasemi: remove hardcoded bus numbers on smbus 2018-08-20 11:01:13 +02:00
i2c-pca-isa.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-pca-platform.c i2c: pca-platform: move header to platform_data 2018-05-17 16:27:58 +02:00
i2c-piix4.c i2c: piix4: Use request_muxed_region 2018-03-02 11:17:23 +01:00
i2c-pmcmsp.c i2c: pmcmsp: use core to detect 'no zero length' quirk 2018-08-04 23:25:06 +02:00
i2c-pnx.c i2c: pnx: move header into the driver 2018-05-17 16:27:59 +02:00
i2c-powermac.c i2c: powermac: Use of_node_name_eq for node name comparisons 2018-12-11 21:16:28 +01:00
i2c-puv3.c i2c: busses: make i2c_algorithm const 2017-08-29 22:20:20 +02:00
i2c-pxa-pci.c ARM: pxa: move header file out of I2C realm 2017-11-28 22:49:30 +01:00
i2c-pxa.c ARM: pxa: move header file out of I2C realm 2017-11-28 22:49:30 +01:00
i2c-qcom-geni.c i2c: qcom-geni: Fix runtime PM mismatch with child devices 2018-11-09 17:25:48 +01:00
i2c-qup.c i2c: qup: use core to detect 'no zero length' quirk 2018-10-05 18:05:08 +02:00
i2c-rcar.c i2c: rcar: refactor TCYC handling 2019-02-08 22:30:46 +01:00
i2c-riic.c i2c: use SPDX identifier for Renesas drivers 2018-08-24 14:49:36 +02:00
i2c-rk3x.c i2c: rk3x: Don't print visible virtual mapping MMIO address 2018-05-24 22:09:05 +02:00
i2c-robotfuzz-osif.c i2c: robotfuzz-osif: drop pointless test 2018-05-24 22:13:04 +02:00
i2c-s3c2410.c i2c: s3c2410: use core helper to mark adapter suspended 2019-01-08 21:02:52 +01:00
i2c-scmi.c i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI device node 2018-12-06 23:14:59 +01:00
i2c-sh7760.c i2c: don't print error when adding adapter fails 2016-08-22 08:19:55 +02:00
i2c-sh_mobile.c i2c: sh_mobile: use new clock calculation formulas for Gen2 2019-02-08 22:24:50 +01:00
i2c-sibyte.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-simtec.c i2c: simtec: use release_mem_region instead of release_resource 2017-08-14 21:39:21 +02:00
i2c-sirf.c i2c: busses: i2c-sirf: Fix spelling: "formular" -> "formula". 2018-02-22 12:12:35 +01:00
i2c-sis96x.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-sis630.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-sis5595.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-sprd.c i2c: sprd: use core helper to mark adapter suspended 2019-01-08 21:02:50 +01:00
i2c-st.c i2c: use dev_get_drvdata() to get private data in suspend/resume hooks 2017-07-31 17:03:32 +02:00
i2c-stm32.c i2c: i2c-stm32: Add generic DMA API 2018-04-30 10:39:27 +02:00
i2c-stm32.h i2c: i2c-stm32: Add generic DMA API 2018-04-30 10:39:27 +02:00
i2c-stm32f4.c i2c-stm32f4: remove redundant initialization of pointer reg 2018-02-27 13:51:05 +01:00
i2c-stm32f7.c i2c: i2c-stm32f7: add PM Runtime support 2018-12-01 00:14:45 +01:00
i2c-stu300.c i2c: stu300: use core to detect 'no zero length' quirk 2018-08-04 23:25:07 +02:00
i2c-sun6i-p2wi.c i2c: sun6i-pw2i: explicitly request exclusive reset control 2017-08-14 21:40:21 +02:00
i2c-synquacer.c i2c: synquacer: remove unused is_suspended flag 2019-01-08 21:02:48 +01:00
i2c-taos-evm.c i2c: taos-evm: Remove duplicate NULL check 2017-11-02 00:01:21 +01:00
i2c-tegra-bpmp.c i2c: tegra: fix spelling mistake: "contoller" -> "controller" 2017-04-21 14:04:57 +02:00
i2c-tegra.c i2c: tegra: Only display error messages if DMA setup fails 2019-02-23 11:08:44 +01:00
i2c-thunderx-pcidrv.c i2c: thunderx: Remove duplicate NULL check 2017-11-02 00:01:31 +01:00
i2c-tiny-usb.c i2c: i2c-tiny-usb: fix buffer not being DMA capable 2017-05-22 10:33:42 +02:00
i2c-uniphier-f.c i2c: uniphier-f: fix violation of tLOW requirement for Fast-mode 2018-12-06 23:14:59 +01:00
i2c-uniphier.c i2c: uniphier: fix violation of tLOW requirement for Fast-mode 2018-12-06 23:14:59 +01:00
i2c-versatile.c i2c: versatile: Make i2c_algo_bit_data const 2017-08-29 22:34:12 +02:00
i2c-via.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-viapro.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-viperboard.c i2c: viperboard: return message count on master_xfer success 2018-05-15 09:31:26 +02:00
i2c-wmt.c i2c: don't print error when adding adapter fails 2016-08-22 08:19:55 +02:00
i2c-xgene-slimpro.c i2c: xgene-slimpro: Support v2 2017-11-01 23:54:53 +01:00
i2c-xiic.c i2c: xiic: Make the start and the byte count write atomic 2018-09-06 20:49:09 +02:00
i2c-xlp9xx.c i2c: xlp9xx: Fix case where SSIF read transaction completes early 2018-08-09 17:41:13 +02:00
i2c-xlr.c i2c: xlr: use core to detect 'no zero length' quirk 2018-08-04 23:25:08 +02:00
i2c-zx2967.c i2c: zx2967: use core helper to mark adapter suspended 2019-01-08 21:02:49 +01:00
Kconfig i2c: add i2c bus driver for NVIDIA GPU 2018-11-09 17:46:43 +01:00
Makefile i2c: add i2c bus driver for NVIDIA GPU 2018-11-09 17:46:43 +01:00
scx200_acb.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00