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
..
algos	i2c: algo-bit: convert to SPDX header	2019-02-05 14:05:03 +01:00
busses	i2c: tegra: Only display error messages if DMA setup fails	2019-02-23 11:08:44 +01:00
muxes	Merge branch 'i2c/for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2018-10-29 14:44:03 -07:00
i2c-boardinfo.c	i2c: i2c-boardinfo: fix memory leaks on devinfo	2017-11-27 19:14:29 +01:00
i2c-core-acpi.c	i2c: acpi: Introduce i2c_acpi_get_i2c_resource() helper	2018-12-03 21:40:02 +02:00
i2c-core-base.c	i2c: add suspended flag and accessors for i2c adapters	2019-01-08 21:01:07 +01:00
i2c-core-of.c	i2c: of: Try to find an I2C adapter matching the parent	2019-02-05 13:41:49 +01:00
i2c-core-slave.c	i2c: remove i2c_lock_adapter and use i2c_lock_bus directly	2018-07-13 00:09:37 +02:00
i2c-core-smbus.c	i2c: core-smbus: don't trace smbus_reply data on errors	2019-02-14 18:01:33 +01:00
i2c-core.h	i2c: make i2c_check_addr_validity() static	2018-03-24 14:07:23 +01:00
i2c-dev.c	i2c: expand minor range when registering chrdev region	2019-02-15 09:53:34 +01:00
i2c-mux.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-slave-eeprom.c
i2c-smbus.c
i2c-stub.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
Kconfig	treewide: surround Kconfig file paths with double quotes	2018-12-22 00:25:54 +09:00
Makefile	i2c: don't use any __deprecated handling anymore	2018-08-24 17:26:43 +02:00