Intel OpenBMC Linux kernel source tree (mirror) https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-4.6 2015-12-10T04:13:33+00:00 2015-12-10T04:13:33+00:00 Geert Uytterhoeven geert+renesas@glider.be 2015-12-04T15:56:29+00:00 urn:sha1:4d42e95fc789393d267bbab8b4684936c1529378 As of commit 4baadb9e05c68962 ("ARM: shmobile: r8a7778: remove obsolete setup code"), the Renesas R-Car HPB-DMAC driver is no longer used. In theory it could still be used on R-Car Gen1 SoCs, but that requires adding DT support to the driver, which is not planned. Remove the driver, it can be resurrected from git history when needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2015-08-26T02:20:17+00:00 Vinod Koul vinod.koul@intel.com 2015-08-24T08:13:14+00:00 urn:sha1:8a4ce226b9061fe3ab04f6db34d4b2ae645b9f65 Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2015-04-20T18:51:14+00:00 Vinod Koul vinod.koul@intel.com 2015-04-20T18:51:14+00:00 urn:sha1:b53c7582805b10d6a32e88e22d16dc469e66a37a 2015-04-02T07:27:32+00:00 Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com 2015-04-01T06:22:45+00:00 urn:sha1:0c1c8ff32fa29e425b4938934c21afdb81104431 This DMAC is Renesas USB high-speed module DMA controller that supports slave transfer. This USB-DMAC has similar register sets with R-Car Gen2 DMAC, but the USB-DMAC has specific registers to control the USB transactions. If this code is added into the rcar-dmac driver, it will become unreadable. So, this driver is independent from the rcar-dmac. And, this USB-DMAC uses virt-dma infrastructure. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2015-03-18T08:27:54+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2015-03-12T00:39:49+00:00 urn:sha1:3cd44dcd35a6618df88c51561290dc02fb35b8e2 Renesas R-Car sound (= rsnd) needs 2 DMAC which are called as Audio DMAC (= 1st DMAC) and Audio DMAC peri peri (2nd DMAC). And rsnd had assumed that 1st / 2nd DMACs are implemented as DMAEngine. But, in result of DMA ML discussion, 2nd DMAC was concluded that it is not a general purpose DMAC (2nd DMAC is for Device to Device inside sound system). Additionally, current DMAEngine can't support Device to Device, and we don't have correct DT bindings for it at this point. So the easiest solution for it is that move it from DMAEngine to rsnd driver. Audio DMAC peri peri on DMAEngine is no longer needed. remove it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Arnd Bergmann <arnd@arndb.de> 2014-12-23T09:13:01+00:00 Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com 2014-07-08T22:42:19+00:00 urn:sha1:87244fe5abdf1dbaf4e438d80cf641bf3c01d5cf The DMAC is a general purpose multi-channel DMA controller that supports both slave and memcpy transfers. The driver currently supports the DMAC found in the r8a7790 and r8a7791 SoCs. Support for compatible DMA controllers (such as the audio DMAC) will be added later. Feature-wise, automatic hardware handling of descriptors chains isn't supported yet. LPAE support is implemented. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> 2014-07-31T11:45:45+00:00 Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com 2014-07-31T00:34:04+00:00 urn:sha1:9f2c2bb31258e11b1ebaf73bdf2a88f8afaa2dd2 Separate helpers and drivers in the Kconfig and Makefile to improve readability and move the CONFIG_OF dependency from the Makefile to Kconfig. [pebolle@tiscali.nl: reported need to rename SHDMA_R8A73A4 instances] Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [horms+renesas@verge.net.au: squashed rename of SHDMA_R8A73A4 instances] Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2014-03-29T14:08:09+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2014-03-11T01:11:50+00:00 urn:sha1:e43a34e3ec5d1b14a11c3220f5a12aa797d73cd1 Add support Audio DMAC peri peri driver for Renesas R-Car Gen2 SoC, using 'shdma-base' DMA driver framework. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> [fixed checkpatch error] Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2013-09-02T12:12:35+00:00 Vinod Koul vinod.koul@intel.com 2013-09-02T12:12:35+00:00 urn:sha1:265d9c673d47fcd5812d69dc07104b706285de56 Conflicts: drivers/dma/sh/Kconfig drivers/dma/sh/shdmac.c Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2013-09-02T12:05:55+00:00 Max Filippov max.filippov@cogentembedded.com 2013-08-24T20:33:24+00:00 urn:sha1:c4f6c41ba790bbbfcebb4c47a709ac8ff1fe1af9 Add support for HPB-DMAC found in Renesas R-Car SoCs, using 'shdma-base' DMA driver framework. Based on the original patch by Phil Edworthy <phil.edworthy@renesas.com>. Signed-off-by: Max Filippov <max.filippov@cogentembedded.com> [Sergei: removed useless #include, sorted #include's, fixed HPB_DMA_TCR_MAX, fixed formats and removed line breaks in the dev_dbg() calls, rephrased and added IRQ # to the shdma_request_irq() failure message, added MODULE_AUTHOR(), removed '__init'/'__exit' annotations from the probe()/remove() methods, removed '__initdata' annotation from 'hpb_dmae_driver', fixed guard macro name in the header file, fixed #define ASYNCRSTR_ASRST20, added #define ASYNCRSTR_ASRST24, added the necessary runtime PM calls to the probe() and remove() methods, handled errors returned by dma_async_device_register(), beautified comments and #define's.] Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>